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Comtech EF Data CDM-625A, Installation And Operation Manual

The Comtech EF Data CDM-625A is a high-performance satellite modem designed for reliable data transmission. Ensure proper setup and operation by referring to the Installation and Operation Manual available for free download on our website. Download the manual from manualshive.com to maximize the functionality of your CDM-625A.

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CDM-625A Advanced Satellite Modem 

MN-CDM625A 

Appendix F 

Revision 4 

F–6 

 

Figure F-3. Same Link Using CDM-625A and DoubleTalk

 

Carrier-in-Carrier 

 

Figure F-4. Duplex Link Optimization 

CnC operates on the near-zero signal before the demodulator, and is waveform agnostic. This 

means that no prior knowledge of the underlying modulation, FEC, or any other waveform 

specific parameter is required in order to perform the signal suppression operation. The only 

caveat to this is that the waveform must be 

sufficiently random

. 

 

Because acquiring the delay and frequency offset of the interfering carrier is fundamentally a 

correlation operation, anything deterministic in the interfering carrier (within the correlation 

window of the algorithm) will potentially produce false correlation peaks and result in incorrect 

delays and/or frequency. Normally, this is not a problem, since energy dispersal techniques are 

utilized in the vast majority of commercial and military modems. However, it is something that 

must be kept in mind when troubleshooting a system that utilizes the DoubleTalk Carrier-in-

Carrier technique for signal suppression. 

Summary of Contents for CDM-625A

Page 1: ...tained in this document supersedes all previously published information regarding this product Product specifications are subject to change without prior notice CDM 625A Advanced Satellite Modem 18 kb...

Page 2: ......

Page 3: ...hange page 1 8 IP Packet Processor AES Encryption Installation Method to Available as EN model Errata Part Number ER CDM625A EA4 Errata documents are not revised PLM CO Number C 0035152 Comments See a...

Page 4: ...ER CDM625A EA4 Rev...

Page 5: ...cumentation Update Subject Change page 8 62 EGC command arguments Errata Part Number ER CDM625A EB4 Errata documents are not revised PLM CO Number C 0037089 Comments See attached page s The new inform...

Page 6: ...ER CDM625A EB4 Rev...

Page 7: ...USA Comtech EF Data 2114 West 7th Street Tempe Arizona 85281 USA 480 333 2200 FAX 480 333 2161 Part Number MN CDM625A CD MN CDM625A Revision 4 CDM 625A Advanced Satellite Modem 18 kbps 25 Mbps Instal...

Page 8: ...ii BLANK PAGE...

Page 9: ...an Union Radio Equipment and Telecommunications Terminal Equipment R TTE Directive 1999 5 EC and EN 301 489 1 xxxii European Union Electromagnetic Compatibility EMC Directive 2004 108 EC xxxii Europea...

Page 10: ...ator 1 16 1 4 3 Data Interfaces 1 22 1 4 4 Automatic Uplink Power Control AUPC 1 22 1 4 5 DoubleTalk Carrier in Carrier CnC 1 23 1 4 6 Framing Summary 1 24 1 4 7 Data Rate Ranges 1 25 1 4 8 VersaFEC A...

Page 11: ...ts 3 12 3 2 2 2 4 Unbal G 703 ASI Out IDO In DDI 3 13 3 2 2 2 5 G 703 IDI Insert Data In DDO Drop Data Out 3 13 3 2 2 3 Quad 10 100 Ethernet RJ 45 3 13 3 2 2 4 IDR Data Alarms Audio HD 44F 3 13 3 2 2...

Page 12: ...icators via the Opening Screen 6 4 6 2 SELECT Main Menu 6 6 6 2 1 SELECT CONFIG Configuration Menu Branch 6 8 6 2 1 1 CONFIG All 6 9 6 2 1 2 CONFIG Mode 6 10 6 2 1 3 CONFIG Tx 6 12 6 2 1 3 1 CONFIG Tx...

Page 13: ...CONFIG Misc 6 45 6 2 1 10 1 CONFIG Misc G 703 LineCode Ternary Code 6 45 6 2 1 10 2 CONFIG Misc IDR ESC 6 45 6 2 1 10 3 CONFIG Misc HSSI 6 46 6 2 1 10 4 CONFIG Misc RTS 6 46 6 2 1 10 5 CONFIG Misc Au...

Page 14: ...nable 6 74 6 2 2 SELECT Test Menu Branch 6 75 6 2 2 1 SELECT TEST Mode 6 75 6 2 2 2 SELECT TEST BERT 6 77 6 2 2 2 1 SELECT TEST BERT Config 6 77 6 2 2 2 2 SELECT TEST BERT Monitor 6 77 6 2 2 3 SELECT...

Page 15: ...6 7 2 1 Utilities Firmware Packet Processor Boot ROM Image X 6 98 6 2 6 7 2 2 Utilities Firmware Packet Processor Select 6 98 6 2 6 8 Utilities Em CDM 600 600L Emulation 6 99 6 2 7 SELECT ODU Menu Bra...

Page 16: ...iguration Routing Pages 7 32 7 5 4 3 3 1 Configuration Routing Routes 7 32 7 5 4 3 3 2 Configuration Routing IGMP 7 34 7 5 4 3 3 3 Configuration Routing DHCP 7 36 7 5 4 3 3 4 Configuration Routing DNS...

Page 17: ...4 8 Status Traffic Statistics MAC Table 7 77 7 5 4 4 4 9 Status Traffic Statistics Clear Counters 7 78 7 5 4 4 5 Status Performance Pages 7 79 7 5 4 4 5 1 Status Performance Performance 7 79 7 5 4 4 5...

Page 18: ...9 3 2 4 Home Administration Reboot 9 16 9 3 2 5 Home Administration FAST 9 17 9 3 2 6 Home Administration Save Modem Configuration Load Modem Configuration 9 19 9 3 2 7 Home Administration Restore Fac...

Page 19: ...rmation MAC Table 9 68 9 3 8 4 Home General Information Block Upconverter BUC 9 69 9 3 8 5 Home General Information Low Noise Block Downconverter LNB 9 69 9 3 9 Home Logs Submenu 9 70 9 3 9 1 Home Log...

Page 20: ...Reference 10 12 10 3 3 3 2 1 ODU LNB PwrSupply Ref PSU and 10MHz 10 12 10 3 3 3 2 2 ODU LNB PwrSupply Ref LO Freq Local Oscillator Frequency 10 12 10 3 3 3 2 3 ODU LNB PwrSupply Ref PSUmonitor 10 13 1...

Page 21: ...SK control BUC Advanced FSK LPOD 2LPODs Online Offline LPOD Monitor 10 28 10 3 3 3 3 4 3 1 3 ODU FSK control BUC Advanced FSK LPOD 2LPODs Online Offline LPOD LPOD Alarms 10 29 10 3 3 3 3 4 3 1 4 ODU F...

Page 22: ...Status 10 61 10 5 1 2 1 6 Home Outdoor Unit ODU CSAT 5060 Logs 10 62 10 5 1 2 1 7 Home Outdoor Unit ODU CSAT 5060 Redundancy 10 63 10 5 1 2 1 8 Home Outdoor Unit ODU CSAT 5060 Utilities 10 63 APPENDIX...

Page 23: ...out MetaCarrier D 1 D 3 Functional Description D 2 D 4 Configuring the CDM 625A for Carrier ID Operation D 3 D 4 1 Enabling Carrier ID Operation D 3 D 4 1 1 Enabling Operation via the CDM 625A Front P...

Page 24: ...onal Considerations F 5 F 2 1 DoubleTalk Carrier in Carrier Cancellation Process F 7 F 2 2 Margin Requirements F 9 F 2 4 Carrier in Carrier and Adaptive Coding and Modulation F 9 F 2 5 Carrier in Carr...

Page 25: ...1 H 1 2 Drop Insert H 2 H 1 3 EDMAC 3 H 2 H 2 M C Connection H 2 H 3 Setup Summary H 4 APPENDIX J ESC J 1 J 1 Overview J 1 J 2 Overhead Details J 1 J 3 Available Baud Rates J 2 J 4 Configuration J 2 J...

Page 26: ...ocessor K 13 K 6 Ethernet Redundancy K 14 K 7 Advanced Network Timing K 15 K 7 1 Overview K 15 K 7 2 SNTP Simple Network Time Protocol K 15 K 7 3 PTP Precision Time Protocol K 15 APPENDIX L IP PACKET...

Page 27: ...VersaFEC ACM M 6 M 6 1 VersaFEC ACM Latency M 8 M 6 2 Configuring VersaFEC ACM in the CDM 625A M 9 M 7 VersaFEC 2 ACM M 12 M 7 1 VersaFEC 2 ACM latency M 15 M 7 2 Configuring VersaFEC 2 ACM in the CDM...

Page 28: ...nnel P 6 APPENDIX Q OFFSET QPSK OPERATION Q 1 APPENDIX R QUALITY OF SERVICE QOS R 1 R 1 Overview R 1 R 1 1 QoS Terminology R 1 R 2 Layer 2 QoS R 2 R 2 1 Modem Tx Data Rate vs QoS Tx Data Rate R 2 R 2...

Page 29: ...onal Hardware and Accessories 1 6 Table 1 2 CDM 625A FAST and FAST accessible Hardware Options 1 7 Table 1 3 The VersaFEC 2 ModCod Set Long Block 1 32 Table 1 4 The VersaFEC 2 ModCod Set Short Block 1...

Page 30: ...ront Panel Features 1 11 Figure 1 4 CDM 625A Rear Panel View 1 12 Figure 1 5 Rx Carrier Level vs Symbol Rate L Band 950 2250 MHz 1 21 Figure 1 6 Rx Carrier Level vs Symbol Rate IF Band 50 180 MHz 1 21...

Page 31: ...onfiguration WAN Compression page 7 47 Figure 7 24 Configuration WAN Encryption page 7 48 Figure 7 25 Configuration Overhead page 7 50 Figure 7 26 Configuration Utilities Utilities1 page 7 52 Figure 7...

Page 32: ...city Typical Values Shown B 19 Figure B 4 Viterbi Decoding B 22 Figure B 5 Viterbi with Concatenated RS 220 200 Outer Code B 23 Figure B 6 8 PSK TCM Rate 2 3 Decoding with without Concatenated RS 219...

Page 33: ...Example K 3 Figure K 5 Hub to Hub with Standard Traffic Using Routers K 4 Figure K 6 Hub to Remotes with Standard Traffic Using Routers or Switches K 5 Figure K 7 Point to Point Configuration in Route...

Page 34: ...CDM 625A Advanced Satellite Modem MN CDM625A CD MN CDM625A Table of Contents Revision 4 xxviii BLANK PAGE...

Page 35: ...es that all trademarks are the property of the trademark owners DoubleTalk is licensed from Raytheon Applied Signal Technology DoubleTalk is a registered trademark of Raytheon Applied Signal Technolog...

Page 36: ...e or movable installation make sure the unit is stable Otherwise EN 60950 safety is not guaranteed Sect 3 3 CDM 625A Ground and Power connections Grounding CAUTION PROPER GROUNDING PROTECTION IS REQUI...

Page 37: ...TI IMQ KEMA KEUR and SEV Battery WARNING THE MODEM CONTAINS A LITHIUM BATTERY DANGER OF EXPLOSION EXISTS Fuses IF THE BATTERY IS INCORRECTLY REPLACED REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECO...

Page 38: ...hat the unit complies with the European Union R TTE Directive its reference to EN 301 489 1 Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for...

Page 39: ...ower cord required for use in the European Community CAUTION Double pole Neutral Fusing ACHTUNG Zweipolige bzw Neutralleiter Sicherung International Symbols Symbol Definition Symbol Definition Alterna...

Page 40: ...he remainder of the original warranty or a 90 day extended warranty whichever is longer Contact Comtech EF Data for the warranty period specific to the product purchased For equipment under warranty t...

Page 41: ...or repair or replacement The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or consequential damages arising from the use of the equipment or products or for any in...

Page 42: ...CDM 625A Advanced Satellite Modem MN CDM625A Preface Revision 4 xxxvi Notes...

Page 43: ...sed HTTP Web Server SNMP or Telnet Command Line interfaces Compared with the CDM 625 additional front panel LEDs are incorporated that permit a clearer visual indication of the status of the unit It p...

Page 44: ...treamline Encapsulation SLE Header and Payload Compression Advanced Quality of Service QoS and Advanced Encryption Standard AES Encryption IEEE 1588v2 Precision Timing Protocol PTP and Jumbo Frame Sup...

Page 45: ...is generated by a frequency synthesizer and the I and Q signals directly modulate this carrier For L Band applications the directly modulated signal comprises the main output For IF applications 50 1...

Page 46: ...mpatible with modems from other manufacturers that are compliant with the IESS 308 309 310 314 specifications Note however that IESS 315 VSAT Turbo defines closed network operation and this therefore...

Page 47: ...048 Mbps V 35 DCE at rates up to 14 Mbps G 703 E1 balanced and unbalanced G 703 T1 balanced G 703 E2 unbalanced G 703 T2 balanced and unbalanced Quad E1 Drop and Insert QDI up to 4 balanced E1ports S...

Page 48: ...apter Cable 25 pin D Type Male to 37 pin D Type Female 8 RTS CTS Control N A AC Power AC Power cont KT 0020703 AC to 24V DC Conversion Kit 3 3 2 KT 0020775 AC to 48V DC Conversion Kit KT 0000282 AC Pr...

Page 49: ...omon codecs It offers BPSK QPSK and OQPSK modulation types and data rates up to 5 0 Mbps with all interface types While it is limited to Closed Network operation it also includes EDMAC and AUPC Table...

Page 50: ...00 ksps FAST Symbol rate 37 ksps to 4100 ksps FAST Symbol rate 37 ksps to 8000 ksps FAST Symbol rate 37 ksps to 12500 ksps FAST G 703 Clock Extension G 703 Clock Extension FAST Carrier ID Carrier ID F...

Page 51: ...the transceiver using either the CDM 625A s front panel display and keypad or any of its remote control interfaces The EDMAC channel may also be used to convey M C data to a transceiver at the distan...

Page 52: ...e Modem MN CDM625A Introduction Revision 4 1 10 1 3 9 Physical Features 1 3 9 1 Dimensional Envelope All dimensions are in inches Dimensions shown in parentheses are in metric units mm Figure 1 2 CDM...

Page 53: ...yswitches The keys have a positive click action that provides tactile feedback Enter data via the keypad Data prompts and messages are displayed on the VFD 6 1 2 3 Vacuum Fluorescent Display VFD The V...

Page 54: ...03 IDO ASI Unbalanced In BNC female Transmit G 703 DDI ASI IDI BNC female Insert Data In Sub rate Auxiliary Tx G 703 In DDO BNC female Drop Data Output Sub rate Auxiliary Rx G 703 Out 10 100 Ethernet...

Page 55: ...symbol rate 12 5 Msps Automatic Uplink Power Control AUPC mode High Rate ESC Enhanced ESC ESC Enhanced Drop Insert D I Quad E1 Drop Insert QDI concatenates time slots from up to four E1 G 703 streams...

Page 56: ...EC modes externally frame synchronized proprietary All RS modes externally frame synchronized per IESS 308 309 310 All VersaFEC VersaFEC 2 modes use IESS 315 V 35 All DoubleTalk Carrier in Carrier mod...

Page 57: ...rdware function automatically over rides processor BUC Reference 10 MHz Phase Noise On center conductor of L Band output connector 10 0 MHz 0 06 ppm internal reference selected 0 0 dBm 3 dB programmab...

Page 58: ...Network Per IESS 308 309 310 Reed Solomon Closed Network Proprietary Turbo Product Codec 6 bit soft decision proprietary LDPC 5 bit soft decision proprietary VersaFEC 6 bit soft decision proprietary...

Page 59: ...dB 6 9 dB 8 2 dB 7 7 dB Rate 7 8 Q OQ 7 7 dB 7 2 dB 8 4 dB 7 9 dB 9 0 dB 8 6 dB VITERBI and RS 220 200 or 200 180 Outer Code BER With two adjacent carriers each 7 dB higher than the desired carrier B...

Page 60: ...8 QAM With two adjacent carriers each 7 dB higher than the desired carrier BER 10 6 BER 10 7 BER 10 8 Rate 0 95 Q OQ 6 4 dB 6 0 dB 6 7 dB 6 3 dB 6 9 dB 6 5 dB Rate 0 95 8PSK 8 QAM 9 6 dB 9 2 dB 10 1...

Page 61: ...2 4 dB 2 1 dB 2 6 dB 2 3 dB Rate 0 684 QPSK 2 4 dB 2 1 dB 2 6 dB 2 3 dB Rate 0 733 QPSK 2 8 dB 2 5 dB 3 0 dB 2 7 dB VersaFEC 2 Long Block CODEC BER 8 ARY With two adjacent carriers each 7 dB higher th...

Page 62: ...4 5 dB 5 2 dB 4 9 dB VersaFEC 2 Short Block CODEC BER 16 ARY With two adjacent carriers each 7 dB higher than the desired carrier BER 10 4 BER 10 8 Rate 0 586 16 ARY 4 8 dB 4 5 dB 5 3 dB 5 0 dB Rate...

Page 63: ...l Rate L Band 950 2250 MHz Figure 1 6 Rx Carrier Level vs Symbol Rate IF Band 50 180 MHz 90 80 70 60 50 40 30 20 10 0 10 100 1000 10000 100000 Symbol Rate in ksps Carrier Level in dBm Maximum Minimum...

Page 64: ...DR BWA Inputs 4 backward alarm Form C relay outputs 2 audio channels each occupying 32 kbps bandwidth as part of IDR overhead or as a 64 kbps primary data rate option 600 balanced 0 dBm0 nominal 6 to...

Page 65: ...B 10 log Outbound desired symbol rate 10 dB Maximum Symbol Rate Ratio 3 1 TX RX or RX TX Inbound Outbound frequency uncertainty Within the normal acquisition range of the demod as follows Below 64 ksy...

Page 66: ...2048 kbps only all formats EIA 232 Earth station link at 1 480th of primary data rate One BW alarm 126 112 219 201 for IESS 310 mode IESS 309 scrambler D I 1 15 of front panel data rate Terrestrial i...

Page 67: ...17 18 aka 0 95 34 2 23611 1 TPC O QPSK 7 8 31 5 21875 0 TPC 8PSK 8 QAM 3 4 40 5 25000 0 TPC 8PSK 8 QAM 17 18 aka 0 95 52 0 25000 0 TPC 8PSK 8 QAM 7 8 48 0 25000 0 TPC 16 QAM 3 4 54 0 25000 0 TPC 16 Q...

Page 68: ...0 95 33 5 23224 0 TPC O QPSK 7 8 31 0 21516 3 TPC 8PSK 8 QAM 3 4 39 9 24590 1 TPC 8PSK 8 QAM 17 18 aka 0 95 50 2 24590 1 TPC 8PSK 8 QAM 7 8 46 5 24590 1 TPC 16 QAM 3 4 53 2 24590 1 TPC 16 QAM 7 8 62 0...

Page 69: ...8 aka 0 95 64 0 8448 0 TPC O QPSK 7 8 64 0 8448 0 TPC 8PSK 8 QAM 3 4 64 0 8448 0 TPC 8PSK 8 QAM 17 18 aka 0 95 64 0 8448 0 TPC 8PSK 8 QAM 7 8 64 0 8448 0 TPC 16 QAM 3 4 64 0 8448 0 TPC 16 QAM 7 8 64 0...

Page 70: ...64 0 23242 1 TPC O QPSK 7 8 64 0 21533 2 TPC 8PSK 8 QAM 3 4 64 0 24609 3 TPC 8PSK 8 QAM 17 18 aka 0 95 64 0 24609 3 TPC 8PSK 8 QAM 7 8 64 0 24609 3 TPC 16 QAM 3 4 64 0 24609 3 TPC 16 QAM 7 8 64 0 246...

Page 71: ...642 35 0 12000 0 VersaFEC 8 QAM Rate 0 711 39 0 12000 0 VersaFEC 8 QAM Rate 0 780 43 0 12000 0 VersaFEC 16 QAM Rate 0 644 ECCM 47 0 11000 0 VersaFEC 16 QAM Rate 0 731 53 0 12000 0 VersaFEC 16 QAM Rate...

Page 72: ...od ModCods 00 11 Remote Demod Unlock Action Maintain current ModCod Go to minimum ModCod Target Eb No margin 0 to 4 5 dB 0 5 dB steps System latency 54 milliseconds maximum for a system operating at 1...

Page 73: ...8 margin set to 0 dB Switch point hysteresis 0 3 dB Max fading rate Approximately 1 dB second higher if Target Eb No margin 1 dB Max ModCod update rate 1 update every 1 7 seconds Configurable paramet...

Page 74: ...5 14 8 ARY 0 635 1 906 18720 6 2 299 34 3 23 8 37 12 5 15 8 ARY 0 660 1 979 19440 6 5 311 35 6 24 7 37 12 5 16 8 ARY 0 684 2 052 20160 6 9 322 36 9 25 0 37 12 2 17 8 ARY 0 708 2 125 20880 7 2 333 38 3...

Page 75: ...880 6 4 51 31 7 2 0 37 1 13 8 ARY 0 611 1 832 3000 6 6 53 33 0 2 0 37 1 14 8 ARY 0 635 1 906 3120 6 9 55 34 3 2 0 37 1 15 8 ARY 0 660 1 979 3240 7 2 57 35 6 2 0 37 1 16 8 ARY 0 684 2 052 3360 7 5 59 3...

Page 76: ...t Dimensions 1RU high 17 65 inches 448 mm deep Weight 10 5 lbs 4 8 kg maximum All option cards and 48V BUC supply installed AC consumption 48 watts typical TPC LDPC Codec module installed 68 watts max...

Page 77: ...llation and Operation Manual otherwise available online at http www comtechefdata com and its power cord were packaged and shipped in a reusable cardboard carton containing protective foam spacing CAU...

Page 78: ...Brackets Kit Figure 2 3 CAUTION When mounting the modem into a rack enclosure PROPER GROUNDING PROTECTION IS REQUIRED The equipment must be connected to the protective earth connection at all times I...

Page 79: ...be impeded Comtech EF Data recommends that an alternate method of support is provided within the rack such as standard rack shelves or the optional Rear Mounting Support Bracket Kit If there is any d...

Page 80: ...SHLDR Shoulder Screw 10 2 4 4 HW 10 32FLT Flat Washer 10 3 2 2 HW 10 32SPLIT Lock Washer 10 4 2 2 HW 10 32HEXNUT Hex Nut 10 5 4 4 HW 10 32x1 2RK Bolt 10 Rear Support Bracket 6 2 FP 6138 2 Bracket Rear...

Page 81: ...rried out entirely via the modem s installed firmware use the front panel keypad and display to configure the modem locally The auto sensing AC power supply does not require any adjustments Simply plu...

Page 82: ...CDM 625A Advanced Satellite Modem MN CDM625A Installation Revision 4 2 6 Notes...

Page 83: ...les must be double shielded from end to end ensuring a continuous ground shield 3 1 1 Coaxial Cable Connections Coupling Type Connector Type Plug Jack Bayonet Type BNC shown Threaded Type N shown Figu...

Page 84: ...eaded Coupling Connections Engage the plug onto the jack threads and then turn the plug clockwise until it is fully threaded onto the jack Do not over tighten the connection 3 1 1 1 Type BNC BNC conne...

Page 85: ...ure connection to the jack nuts provided on the mating chassis receptacle The jack screws may be hand tightened or tightened with a standard flat blade screwdriver Connection Instructions Orient the p...

Page 86: ...I or D I Quad E1 Ports 1 2 Auxiliary G 703 9 pin Type D female Quad E1 Ports 3 4 Unbalanced Out BNC female Receive G 703 IDO ASI Unbalanced In BNC female Transmit G 703 DDI ASI IDI BNC female Insert D...

Page 87: ...E DC VOLTAGES UP TO A MAXIMUM OF 48 VOLTS PRESENT ON THE TYPE N RX AND TX IF CONNECTORS 3 2 1 1 Rx IF Connectors Connector Type Description Direction Type N Rx IF signal L band In BNC Rx IF signal 70...

Page 88: ...B NOTE 2 Modem to DTE DM B 9 Receive Clock B Modem to DTE RT B SCR B RT B RT B 115 21 NOTE 2 8 Receiver Ready A Modem to DTE RR A RLSD CA A RR A 109 20 NOTE 2 7 Signal Ground SG SG SG SG 102 19 Reques...

Page 89: ...bps EIA 422 overhead channel 3 2 2 1 1 HSSI Operation via the CIC 60 Interface Adapter Module For HSSI operation Tx Rx or both the optional CIC 60 Interface Adapter Module Figure 3 4 may be purchased...

Page 90: ...al Ground 7 32 SG 102 Ground DTE Available 8 33 TA 108 2 to DCE Terminal Timing 9 34 TT 113 to DCE Loopback circuit A 10 35 LA 143 to DCE Not used Send Data 11 36 SD 103 to DCE Loopback Circuit B 12 3...

Page 91: ...Function Quad D I 5 Tx in DDI Port 1 Tx In 9 Tx in DDI Port 1 Tx In 4 DDO Port 1 Rx Out 8 DDO Port 1 Rx Out 3 GND GND GND 7 IDI Port 2 Tx In 2 IDI Port 2 Tx In 6 Rx Out IDO Port 2 Rx Out 1 Rx Out IDO...

Page 92: ...as follows Figure CEFD Part No Converts 1 9 pin Type D Connector DB 9F to 3 5 CA 0000163 2 DB 15F connections see Table 3 5 for the connector pinout 3 6 CA 0000164 2 RJ 48 F connections see Table 3 6...

Page 93: ...0164 Adapter Cable DB 9M 2X RJ 48F Table 3 6 CA 0000164 Connector Pinouts Table ordered by Signal Function Signal Function Connector Twisted Pair P1 J1 J2 Port 1 or 3 Tx In 5 1 X Port 1 or 3 Tx In 9 2...

Page 94: ...2 502 0532 001 Bolun Adapter 2X RJ 48 Female 2X BNC 75 Female Figure 3 7 Quad E1 Balanced Unbalanced Adapter Cable Kits Table 3 7 CA 0000347 CA 0020710 Connector Pinouts P1 PINOUT Table ordered by Sig...

Page 95: ...Pin Description R L Top Row Pin Description 30 EIA 422 Rx ESC Data B Out 15 Ground 44 EIA 422 Rx ESC Data A Out 29 EIA 422 Rx ESC Clock A Out 14 EIA 422 Rx ESC Clock B Out 43 EIA 422 Rx Octet B Out 28...

Page 96: ...ta Out EIA 232 Rx Data Out 6 EIA 485 Tx Data B In 1 Ground Ground 3 2 3 Utility Connections Group 3 2 3 1 Remote Control DB 9M The Remote Control interface is a 9 pin Type D male connector It is inten...

Page 97: ...TX NO Tx Traffic Energized No Fault 14 TX NC Tx Traffic De energized No Fault 7 RX COM Rx Traffic 15 RX NO Rx Traffic Energized No Fault 8 RX NC Rx Traffic De energized No Fault 3 2 3 3 PMSI Connector...

Page 98: ...l connector is a 9 pin Type D female connector Table 3 13 1 1 Control Interface Connector Pinouts R L Pin Description Direction 5 Ground 9 Fused 12 volt Out Out 4 Redundancy In 2 In 8 Redundancy Out 2...

Page 99: ...at all times It is therefore imperative that the unit is properly grounded using the ground stud provided on the unit rear panel during installation configuration and operation TOP Standard AC Chassi...

Page 100: ...mm Slow blow type fuses T4A 250V AC operation Figure 3 9 CDM 625A Standard AC Chassis CEFD P N PL 12587 1 3 3 2 1 AC Operation CDM 625A Accessories Contact Comtech EF Data Product Support to purchase...

Page 101: ...he user supplied power source Finally switch the unit ON 3 3 2 3 AC Operation Replace the Fuses For AC operation the CDM 625A uses two common 5mm x 20mm Slow blow fuses one each for line and neutral c...

Page 102: ...he fuse holder in the IEC power module 3 3 3 Optional 48V Direct Current DC Power Interface Figure 3 12 CDM 625A Optional DC Chassis CEFD P N PL 0021327 Feature Description 1 On Off Switch 2 Power Ter...

Page 103: ...5A with IP Packet Processor KT 0020692 DC Primary Power Supply 48 VDC w required cables PS 0020519 DC 48V 120W Power Supply PS 0020504 DC 24V 120W Power Supply CA 0000455 DC Pigtail Adapter 3 3 3 2 Op...

Page 104: ...the CDM 625A Optional DC Chassis Fuses WARNING DISCONNECT THE POWER SUPPLY BEFORE PROCEEDING To replace the fuses do these steps First unscrew either fuse holder from its receptacle Then remove and re...

Page 105: ...an download the update archive file from the Comtech EF Data Web site www comtechefdata com or obtain it through e mail from Comtech EF Data Product Support You can perform the CDM 625A Firmware Updat...

Page 106: ...F0000342 _V FW 0000342 FW 0000342 bin IP Packet Processor Module option without AES Encryption CONTACT CEFD PRODUCT SUPPORT FW 0000438 bin IP Packet Processor Module option with AES Encryption Only fi...

Page 107: ...al cable and a standard CAT5 Ethernet cable to connect the CDM 625A to the User PC A Use the 9 pin serial cable to connect the CDM 625A Remote Control port to a serial port on the User PC Use an Ether...

Page 108: ...hes as shown in this example Image X Bulk DD MM YY FW 0020731X Ethernet IP Address Use the CONFIG IP Addresses menu branch as shown in this example Ethernet IP Address Range 192 168 001 002 24 Using t...

Page 109: ...and then press Enter to execute There are several ways to create a temporary folder on a Windows based PC A Use the Windows Desktop to create and rename the temporary folder Right click anywhere on th...

Page 110: ...nused name D Use Windows Command line to create the temporary folder First click Start on the Windows taskbar and then click the Run icon or depending on Windows OS versions prior to Windows 95 click...

Page 111: ...ta Product Support to obtain the firmware download for the IP Packet Processor with AES Encryption Sect 4 2 About Firmware Files Naming Versions and Archive Formats G Download the archive file to the...

Page 112: ...e is the firmware version 3 Confirm availability of the firmware files in the temporary folder There are several ways you may view the contents of the temporary folder on a Windows based PC A From the...

Page 113: ...ware and Ethernet Traffic Management IP Address has been noted using either the CDM 625A Serial Interface or the CDM 625A HTTP Interface Admin Firmware Base Modem and Configuration LAN IP pages respec...

Page 114: ...Packet Processor is installed and enabled Type put FW 0020731 _CDM 625A_ bin make sure you do not type the destination bulk as is done for the Base Modem w o IP Packet Processor upload option F For e...

Page 115: ...rmware Use Command line to initiate the FTP session with the modem A Type ftp xxx xxx xxx xxx where xxx xxx xxx xxx is the CDM 625A Traffic Management IP Address B Enter the Admin User Name and Passwo...

Page 116: ...the modem front panel menus or the CDM 625A HTTP Interface Admin Firmware Base Modem or as needed Admin Firmware Packet Processor page to select the desired firmware image to boot from A Using the mo...

Page 117: ...r otherwise disconnect and then turn on reconnect the power source to execute reboot of the modem The system reboot is complete once the modem front panel displays the top level splash screen Comtech...

Page 118: ...CDM 625A Advanced Satellite Modem MN CDM625A Updating Firmware Revision 4 4 14 Notes...

Page 119: ...AST technology allows you to order a unit precisely tailored for the initial application When your service requirements change you can upgrade the topology of the unit to meet these requirements withi...

Page 120: ...xample FAST Options Demo Mode CnC Baseboard S N 123456789 HW Rev1 X Audio C Write down the Serial Number ______________________________________ 2 View the currently installed FAST features A From the...

Page 121: ...chased FAST features A You must make sure you are active in the proper register From the SELECT FAST OPTIONS submenu use the arrow keys to select Set Register1 or Set Register2 Press ENTER FAST option...

Page 122: ...age Figure 5 1 for complete management of FAST Features This page provides scrollable list boxes that display the availability and activation status for all FAST options FAST code entry option activat...

Page 123: ...a specific option register The FAST options are linked to two option registers Register1 is for Data Rate L Band and Framing options Register2 is for Modulation type and Packet Processor options 4 Act...

Page 124: ...CDM 625A Advanced Satellite Modem MN CDM625A FAST Activation Procedure Revision 4 5 6 Notes...

Page 125: ...ys have a positive click action that provides tactile feedback ENTER data via the keypad Data prompts and messages are displayed on the VFD 6 1 2 3 Vacuum Fluorescent Display VFD The VFD is an active...

Page 126: ...s Off An Rx Traffic fault exists frame sync alarm etc the demod may still be OK see Demod Lock LED DEMOD LOCK Green The demodulator and FEC decoder are locked Off The demodulator and or FEC decoder ar...

Page 127: ...traffic Off The Unit is Offline Standby forced by externally connected 1 1 or 1 N redundancy system 6 1 2 Keypad The keypad has an auto repeat feature When you hold down a key for more than one secon...

Page 128: ...a time the VFD could become burnt with this image To prevent such burn in a screen saver feature activates after one hour The screen saver messages loop from right to left across the screen The top l...

Page 129: ...nfigure this mode via the front panel SELECT Utility Em or by remote control remote command EMU When you select emulation the CDM 625A opening screen displays this mode of operation as this example sh...

Page 130: ...he modem Info 6 2 4 Information Use to view information on the modem without having to access the Configuration screens Store Ld 6 2 5 Store Load Use to store and retrieve up to 10 different modem con...

Page 131: ...CDM 625A Advanced Satellite Modem MN CDM625A Front Panel Operation Revision 4 6 7 Figure 6 2 CDM 625A Principle Menu Tree FW Ver 1 4 1...

Page 132: ...t options NOT AVAILABLE IN ACM MODE ACM 0 VersaFEC Adaptive Coding and Modulation Use to configure ACM operating parameters AVAILABLE IN PLACE OF D I SUBMENU ONLY IN ACM MODE CnC 0 DoubleTalkCarrier i...

Page 133: ...it on a step by step basis Every available configuration menu displays in succession First use the arrow keys to select Stop or Start Press ENTER to execute Then Use the arrow keys to select and the a...

Page 134: ...s the available options for the active parameter Not all options are always available they depend on other settings or on the modem s activated FAST options The first parameter is the Interface Type A...

Page 135: ...PC EDMACs which include EDMAC EDMAC is a Comtech EF Data proprietary framing It is backwards compatible with the CDM 500 CDM 550 CDM 550T CDM 600 and CDM 600L The framing permits bi directional passin...

Page 136: ...on before the transmit carrier is inhibited the demodulator must be unlocked continuously for the selected time period 1 2 4 7 or 10 seconds Enabling RTI does not affect the Internal IF Loopback featu...

Page 137: ...Hz To edit the Tx IF Frequency use the arrow keys to select a digit and then use the arrow keys to change that digit Press ENTER Valid settings are IF Frequency Range Step Size Increment 70 140 MHz 50...

Page 138: ...MHz 0 dBm 45 dBm 6 2 1 3 3 1 CONFIG Tx Power Mode AUPC Appendix C AUTOMATIC UPLINK POWER CONTROL AUPC You may select the AUPC Output Power Mode only when the Tx framing is EDMAC D I ESC or D I Note th...

Page 139: ...one None Tx Alm Rem Demod Unlock Act Nom Pwr Nom Max On the top line Configure the action that occurs if the AUPC causes the maximum output power level to be reached Use the arrow keys to select None...

Page 140: ...se the arrow keys to select a parameter Valid settings are Setting Function Nom Nominal Power The output level reverts to the nominal power level set under Manual Max Maximum Power The output level ch...

Page 141: ...w Latency 1 When you select None as the Encoder setting the bottom line of the display changes from Reed Solomon to Diff Encoder Differential Encoding 2 The TPC Turbo and LDPC encoding selections appe...

Page 142: ...ype top line or the FEC Rate bottom line Press ENTER Then use the arrow keys to change that parameter selection The Encoder type dictates the Modulation Type and FEC rate selections Encoder Type Modul...

Page 143: ...0 708 0 733 0 757 0 782 0 801 0 831 0 855 0 879 When you install the TPC LDPC hardware option and you select TPC from the CONFIG Tx FEC submenu the options appear as shown Mod QPSK B Q OQ 8PSK 16Q 8Q...

Page 144: ...es depend on Framing mode Interface type Modulation type and FEC Code Rate When you change any of the higher priority parameters causing the data rate to become invalid the Data Rate adjusts automatic...

Page 145: ...ymbolRate 01000 000 ksps ACM Mode Data Invert Off Clock Invert Off It is important that you understand that the use of IP ACM or V2 ACM modes represent fundamental departures from the way you would ty...

Page 146: ...Reed Solomon is OFF its frame synchronous scrambler is used If configured for TPC Turbo encoding and all of the above settings are off the TPC frame scrambler is used except for 8 QAM For CDM 570 com...

Page 147: ...e amount of frequency uncertainty the demodulator will sweep over in order to find and lock to an incoming carrier When operating at low bit rates large values of sweep range compared to the data rate...

Page 148: ...4 2 CONFIG Rx Freq Frequency Rx IF Frequency 0050 0000 MHz Edit the Rx IF Frequency by using the arrow keys to select a digit and then using the arrow keys to change that digit Press ENTER Valid sett...

Page 149: ...oder setting the bottom line of the display changes from Reed Solomon to Diff Encoder Differential Encoding 2 The TPC Turbo and LDPC encoding selections appear only when you install the TPC LDPC hardw...

Page 150: ...ed dictates the FEC Rate selections Decoder Type Modulation Type FEC Rate Choice No Encoder BPSK Fixed at 1 1 QPSK OQPSK Fixed at 1 1 Non Turbo Encoder BPSK Fixed at 1 2 TCM 8 PSK FAST option Fixed at...

Page 151: ...shown Demod QPSK B Q OQ 8PSK 16Q 8QAM FEC Rate 1 2 1 2 3 4 7 8 When you select VFEC from the CONFIG Rx FEC submenu the options appear as shown Demod BPSK B Q 8QAM 16QAM FEC Rate 0 488 Fixed When you...

Page 152: ...croll through only the available data rates When you edit the data rate to 1920 kbps while in D I framing a message appears to indicate that E1 Fixed Channel Mode is implemented When G 703 is used thr...

Page 153: ...the arrow keys to select On or Off Press ENTER 6 2 1 4 7 CONFIG Rx Descram Descrambler Rx Descrambler IESS Normal IESS Off IESS 315 V 35 Scrambler Use the arrow keys to select Normal IESS or Off Pres...

Page 154: ...rates up to 12 5 Msymbols second in situations with long cable runs between equipment downconverter and modem for example The Eb No estimate is performed after the adaptive equalizer block which prov...

Page 155: ...tes that the unit expects to receive a clock from the DTE to which the unit can phase lock its internal circuits If no clock is detected the modem will substitute its internal clock and generate an al...

Page 156: ...SCT Ins ert Available only if Rx framing is D I and Rx interface is G 703 Sets the buffer clock to the Insert stream On the bottom line To set the Buffer Size use the arrow keys to select a digit and...

Page 157: ...timing to an externally presented G 703 reference signal RxEnable The CDM 625A operating in a non G 703 mode synthesizes a G 703 timing reference from the Rx satellite signal regardless of its actual...

Page 158: ...r piece of equipment in the system When you select this mode an amber LED adjacent to the connector illuminates to alert you that the connector normally used as input now has an output signal present...

Page 159: ...e the D I menu branch displays One Port D I operation as follows Drp Type T1 D4 Chan TS Loop Y Y N Ins Type T1 D4 Chan TS On the top line Use the arrow keys to select the Drp Type Drop Type its Chan T...

Page 160: ...rrow keys to select the number of Drop or Insert Channel Timeslots from na to 24 Press ENTER The number of available Channel Timeslots depends on the data rate If the data rate is 1920 kbps and the fr...

Page 161: ...nels for each port Use the arrow keys on the bottom line to select the port to edit and then use the arrow keys to edit the number of channels for that port The cumulative data rate calculates and dis...

Page 162: ...available for selection up to Channel 31 as shown by the preceding examples Use the arrow keys as necessary to scroll between these nested selections Once you select a channel use the arrow keys on th...

Page 163: ...If using IP ACM Mode ModCod 00 is BPSK Rate 0 488 0 49 bps Hz ModCod 11 is 16 QAM Rate 0 853 3 41bps Hz If using V2 ACM Mode The minimum setting for VF2S Short Block VersaFEC 2 and VF2L Long Block Ve...

Page 164: ...s to select Go to min Tx ModCod recommended or Maintain Tx ModCod Press ENTER If using V2 ACM Mode When distant end demod loses lock Go to Tx ModCod 0 Fixed in VEFC 2 This screen is read only Press EN...

Page 165: ...omatic Power Control CnC APC for complete details about and setup of the CnC APC feature CnC Mode APC Side A C band Off On APC Activate N Y N APC is not active On the top line Use the arrow keys to se...

Page 166: ...ange of delay used by the search This will reduce the time it takes for the CnC algorithm to converge Edit the Min or Max delay by using the arrow keys to select a digit Then use the arrow keys to cha...

Page 167: ...operation you must connect the appropriate cable to the PMSI connector on the rear panel of each modem For 1 N multi drop applications Use Comtech EF Data cable P N CA 0000275 For 1 1 applications Use...

Page 168: ...e EDMAC Address 0020 Use the arrow keys to select the mode as Idle Master or Slave Press ENTER If the mode is Master or Slave the bottom line shows an address To edit the address use the arrow keys to...

Page 169: ...elect the desired code Press ENTER Valid selections are Setting For HDB3 E1 E2 or sub rate operation European standard B8ZS T1 and Unbalanced T2 operation B6ZS Balanced T2 operation AMI Alternate Mark...

Page 170: ...TS CTS Loop No Action RTS and CTS are looped so that CTS echoes the state of RTS but RTS does not control the ON OFF state of the carrier Loop RTS controls Tx out RTS and CTS are looped so that CTS ec...

Page 171: ...00 128 kbps 4800 256 kbps 9600 384 kbps 14400 512 kbps 19200 768 kbps 28800 1024 kbps 38400 Appendix P OPEN NETWORK OPERATIONS ESC is available as standard Both Tx and Rx framing must be set to ESC Wh...

Page 172: ...uppressed This countdown displays in decremented fashion as shown in this example Comtech CDM 625A Advanced Satellite Modem High Stability Ref warming up 045 sec Press the CLEAR key to bypass this war...

Page 173: ...n the Enable Disable menu CONFIG Misc MEO Enable Disable MEO Features Enabled Enabled Disabled Antenna Handover On the top line the arrow keys to select the MEO feature as Enabled or Disabled Press EN...

Page 174: ...a parameter Press ENTER 6 2 1 11 1 CONFIG Mask AIS AIS Tx Terr AIS Masked Active Mask Rx Sat AIS Active Use the arrow keys to select Tx Terr AIS or Rx Sat AIS and then use the arrow keys to select ei...

Page 175: ...EbNo Rx IF Alarm as Active generates an Eb No fault whenever the demodulator sees the receive Eb No fall below the pre determined value Typical for either when you select Masked the modem generates no...

Page 176: ...rms Process Alarms received from Satellite BWA1 N BWA2 N BWA3 N BWA4 N Yes No Use the arrow keys to select which Rx IDR backward alarms to monitor BWA1 BWA2 BWA3 or BWA4 and then use the arrow keys to...

Page 177: ...w Noise Block Down Converter LNB in the operating system You can use the modem only to monitor and control the power supply values For a modem in a 1 1 redundancy setup you must customize the fault in...

Page 178: ...dem displays a common submenu proceed to the next section for details 6 2 1 12 1 CONFIG Remote Local or Serial Remote Settings Interface RS 485 4W 232 485 2 485 4 Address 0001 9600 baud When you selec...

Page 179: ...ER CONFIG IP Addresses MAC Ethernet MAC Address 00 06 B0 00 01 06 read only This screen displays the read only unit MAC address Press ENTER or CLEAR to return to the previous menu CONFIG IP Addresses...

Page 180: ...haracters on the bottom line are available All printable ASCII characters are available except for the backslash ASCII code 92 and tilde ASCII code 126 Press ENTER after composing the string All trail...

Page 181: ...om line are available All printable ASCII characters are available with the exception of the backslash ASCII code 92 and tilde ASCII code 126 Press ENTER after composing the string All trailing spaces...

Page 182: ...nal IP Packet Processor card is either not installed or installed but disabled the mode is Fixed at Managed Switch Mode 6 2 1 13 3 2 CONFIG IP IP Setup WAN WAN Buffer Length 240ms Avg Buffer Fill Stat...

Page 183: ...calculated based on ModCod00 from the Symbol Rate in ACM must be at least 128 kbps and 2 WAN Buffer Length see the important WAN Buffer Notes that follow This menu displays actual negotiated speed Neg...

Page 184: ...atency Yes and No When Yes When the LAN is over driving the modulator the rate at which packets are being received exceeds the capacity of the data rate set for the modulator the WAN Buffer will const...

Page 185: ...psulation and buffering of packets is handled differently through QoS for example and the WAN Buffer is not used Comtech EF Data highly recommends the use of the optional IP Packet Processor module pa...

Page 186: ...You must cycle unit power whenever enabling or disabling MAC Learning Mode MAC learning Off Off On MAC Learning is an Ethernet switch function that allows the LAN user side of the Ethernet ports to le...

Page 187: ...Setup VLAN The CONFIG IP Setup VLAN menu and its available submenus and operations described hereafter are operational only when the IP Working Mode is set as ManagedSwitch mode see Sect 6 2 1 13 3 V...

Page 188: ...om 0001 to 4095 The default is 0001 Hold down the arrow keys to quickly scroll between 0001 and 4095 CONFIG IP IP Setup VLAN VLAN Table VLAN Table View Edit Delete Add Entry The VLAN table supports up...

Page 189: ...TER to save this configuration change an error message will display as follows ERROR Entry with FILTERED on all ports is not allowed Once the port attributes have been changed with ACT Edit active pre...

Page 190: ...meter Then use the arrow keys to replace the string with a new VLAN ID Hold down the arrow keys to quickly scroll between 1 and 4095 Next use the arrow keys to select the port P1 Port1 through P4 Port...

Page 191: ...assigned as the PVID for all ports If a port is in Access Mode Port Mode Access the behavior attribute for each port may be set as Untagged or Filtered PVIDs are automatically ENTERed into the VLAN ID...

Page 192: ...support IP Packet Processor Managed Switch Mode Press ENTER to continue CONFIG IP IP Setup QoS L2 QoS L2 QoS Off Off VLAN PT VLAN Port Use the arrow keys to set the L2 QoS operational priority Press...

Page 193: ...Provides multi level traffic prioritization with the ability to limit maximum traffic per priority class MinMax Minimum Maximum priority Provides a Committed Information Rate CIR to each user defined...

Page 194: ...ates Out only Broadcasts 1023 Octets Pause Max Octets Multicasts Jabber FCS Error Oversize Align Error Discards Good Octets Filtered Bad Octets Collisions Undersize Multiple Fragments Single 64 Octets...

Page 195: ...ed On the top line use the arrow keys to select SNTP or Time Zone For SNTP Use the arrow keys to select SNTP as Enabled or Disabled When Enabled SNTP contacts the time server to update the Real Time C...

Page 196: ...LANs PTP achieves clock accuracy in the sub microsecond range much more accurate than what is attainable by NTP Network Time Protocol and it is also used in network applications where GPS is either un...

Page 197: ...2 messages per second 4 messages per second 8 messages per second 16 messages per second 32 messages per second 64 messages per second You may use Sync Rate only when the Grandmaster is LAN port and t...

Page 198: ...ars as follows Host Access List is Enabled Disable the List No N Y Use the arrow keys to select N No to maintain the active Host Access List or Y to disable the list Press ENTER Once you disable the l...

Page 199: ...est without having to disturb external cabling Furthermore all of the receive configuration parameters are temporarily changed to match those of the transmit side All previous values are restored once...

Page 200: ...CDM 625A Advanced Satellite Modem MN CDM625A Front Panel Operation Revision 4 6 76 Figure 6 3 Loopback Modes...

Page 201: ...a parameter setting Available settings are Option Setting Tx Rx Options Off or On ErrIns Options Off or 10E 3 Pattern Options Space Mark 1 1 1 2 63 511 2047 2047R MIL188 215 1 220 1 223 1 6 2 2 2 2 S...

Page 202: ...rst configure the modem with Viterbi VersaFEC CCM or ULL Ultra Low Latency FEC If the modem is not configured with the required FEC this screen displays N A in the place of a proper test value on the...

Page 203: ...y calibration has not been corrupted FPGA Downloads are verified to have been loaded successfully Hi Stab Freq Ref Module No PLL Lock This will suppress the Tx carrier Tx Transmit No Clock Clock activ...

Page 204: ...ce is not present causing the buffer to fall back on Rx satellite timing to clock its output Net Unit Network Loss TxFrm Loss of Tx frame occurs in Drop Insert operation when the incoming T1 or E1 fra...

Page 205: ...the arrow keys to select Yes or No Press ENTER Upon selecting Clear All Yes the event log clears and the modem returns you to the previous menu However if there already are faults present on the unit...

Page 206: ...ar All No N Y The modem calculates and then displays on the top line from left to right statistics data as follows 16 0 16 0 First the Eb No is calculated The minimum Eb No value observed in the measu...

Page 207: ...in the measurement interval 29 0 dB The presentation of statistics information varies slightly when in IP ACM or V2 ACM mode In IP ACM Mode Stats 115 22 0 22 0 B 0 0 B 21 6 21 6 17 11 14 12 15 26 Clea...

Page 208: ...ows 6 2 3 5 Monitor Rx Parameters Rx Parameters EbNo 11 4dB F 011 7kHz BER 0 0E 9 Buffer 51 RxLevel 43 5dBm When in IP ACM or V2 ACM mode Rx Parameters SNR 11 4dB F 011 7kHz BER 0 0E 9 Buffer 51 RxLev...

Page 209: ...e EbNo 6 8 dB Transmit Power Increase 1 2 dB The top line displays the value of Remote Eb No of the demodulator at the distant end of the satellite link The Remote Eb No displays Unlock if the remote...

Page 210: ...d and locked the screen displays the CnC performance data This read only display updates once every second When CnC APC is active the PwrRatio and PSDR fields will display as AUTO 6 2 3 9 Monitor IP S...

Page 211: ...this menu to scroll through and review configuration settings on a sequential basis The configuration displays are read only no editing is possible To view the configurations Use the arrow keys to se...

Page 212: ...K QPSK OQPSK 8 PSK 8 QAM 16 QAM 8 ARY 16 ARY 32 ARY FEC Rate 1 2 2 3 3 4 7 8 0 95 5 16 21 44 or 1 1 Scrambler Scrm None or IESS Turbo Only 6 2 4 5 Info Rx Rx 0070 0000MHz 02 0dB 30 RSI N Vit RS 126 11...

Page 213: ...s whether or not EDMAC is enabled When EDMAC is enabled it displays the EDMAC Mode and Address 6 2 4 8 Info Drop Drop Type CH 1 E1 CCS TS 01 This screen displays the Drop Type and channel allocations...

Page 214: ...xClk BUC CnC Buffer AGC RxAIS Sat EbNo LNB CEX This screen displays only the alarm s that are currently masked This example shows all available parameters as present and operational For any alarm that...

Page 215: ...lot number from 0 to 9 Next use the arrow keys to select Load and Press ENTER Modem operation then updates as per the configuration settings stored in this slot To store save a configuration setting F...

Page 216: ...1 Utilities Set RTC Edit Real Time Clock Time 12 01 02 Date 26 10 14 To edit the time and date settings of the Real Time Clock use the arrow keys to select a digit and then use the arrow keys to chan...

Page 217: ...tude Telephone Message Use the arrow keys to select a parameter Press ENTER 6 2 6 3 1 Utilities CarrID Latitude CarrierID Latitude 33 25 32 N Set the Carrier ID Latitudinal Coordinate by using the arr...

Page 218: ...as follows Space 0 9 and x 6 2 6 3 4 Utilities CarrID Message CarrierID Custom Message Custom CarrierID Message Compose a MetaCarrier Custom Message on the bottom line by using the arrow keys to sele...

Page 219: ...force Unit into Standby 1 1 only For use when the modem is part of a 1 1 redundancy application e g via a CRS 170A L Band or CRS 180 70 140 MHz 1 1 Redundancy Switch and this unit is currently Online...

Page 220: ...Circuit ID also appears in the title bar of compatible web browsers for easy unit identification Proper composition of the Circuit ID string depends whether the Carrier ID MetaCarrier feature operati...

Page 221: ...Boot ROM Image X Bootrom DD MM YY FW 12865X The example shown here is for the Bootrom firmware opening screen Typical for the Image 1 or Image 2 screens you may use the arrow keys to scroll through in...

Page 222: ...opening screen Typical for the Bootrom Image 1 or Image 2 screens read only information is provided for firmware type its number where X is the revision letter its build date and time stamps in day m...

Page 223: ...A emulating a CDM 600 TPC installed Ver 2 2 6 Note that while emulating a CDM 600 or CDM 600L modem the I O responses including that of remote query EID replicate those of the emulated modem further t...

Page 224: ...e option installed If this hardware is not included Audio does not appear on the bottom line FAST Options Demo Mode CnC Baseboard S N 123456789 HW Rev1 X Audio FAST Fully Accessible System Topology al...

Page 225: ...Rate when configured for VersaFEC 2 CCM Data Rate when configured for VersaFEC 2 ACM Symbol Rate when configured for IP ACM or V2 ACM Open Network Framing Modulation 8 ARY 16 ARY 32 ARY Drop Insert 1...

Page 226: ...the FAST Access Code that you have obtained from Comtech EF Data carefully using the front panel keypad or alternately the CDM 625A Web Server HTTP Interface From the CDM 625A front panel First use t...

Page 227: ...y when Demo Mode is turned On You may turn Demo Mode on and off an unlimited number of times until the full 30 calendar days expire Upon expiration of the Demo period the following message displays FA...

Page 228: ...reflecting this state and provides time remaining and time remaining refill timers when you install a Full CnC license the screen displays no timers Note that 1 YearCounter This is the calendar year c...

Page 229: ...red 90 DayCounter This is the amount of time in seconds that that the modem can be run in CnC mode This counter decrements under the following conditions o The modem has a Fractional CnC license o The...

Page 230: ...CDM 625A Advanced Satellite Modem MN CDM625A Front Panel Operation Revision 4 6 106 Notes...

Page 231: ...nagement Interface Protocols The user PC facilitates access to Ethernet based remote M C of the CDM 625A through three separately operated protocols Simple Network Management Protocol SNMP This requir...

Page 232: ...IB file ComtechEFData MIB file gives the root tree for ALL Comtech EF Data products and consists of only the following OID Name comtechEFData Type MODULE IDENTITY OID 1 3 6 1 4 1 6247 Full path iso 1...

Page 233: ...ommunity default private Trap Community default comtech For proper SNMP operation the CDM 625A MIB files must be used with the associated version of the CDM 625A Advanced Satellite Modem M C Read the...

Page 234: ...44 cdm625aBUCAlarmV1 6247645 cdm625aLNBAlarmV1 6247646 cdm625aRedundancyStateTrapV1 6247647 cdm625aFractionalCnCTrapV1 6247647 Alarms and Faults SNMPv2 notifications cdm625aUnitAlarm 1 3 6 1 4 1 6247...

Page 235: ...line to access the CDM 625A Telnet Interface 1 Click Start on the Windows taskbar and then click the Run icon or depending on Windows OS versions prior to Windows 95 click the MS DOS Prompt icon from...

Page 236: ...terminal emulation program configured as a Telnet client to view the full response messages Do these steps to configure HyperTerminal 1 Be sure to properly define the Connect To Telnet connection pro...

Page 237: ...ine Interface CLI is accessible only when you install and enable the optional IP Packet Processor 2 The CDM 625A Telnet CLI uses Telnet TCP Port 107 Be sure to specify this port when configuring your...

Page 238: ...ault user names and passwords are as follows Admin comtech comtech Read Write opcenter 1234 Read Only monitor 1234 HTTP Login User Access Levels are further defined as follows HTTP Login User Access L...

Page 239: ...a navigation tab you may click an available primary page tab In turn any nested tabs appear for further selection This manual uses a naming format for all pages to indicate the depth of navigation nee...

Page 240: ...drop down list lets you choose from a list of selections Left click the drop down button to open the list Then left click on an item to select that choice 7 5 2 5 Text or Data Entry Text boxes let yo...

Page 241: ...Admin access privileges See Sect 7 5 3 1 for detailed information about this conditional access Any page marked with double asterisks is functional only when an auxiliary product such as a BUC or LNB...

Page 242: ...leges attempts to select any IP Packet Processor specific page access to that page is prohibited and either of the following error messages may display in the browser window or Once logged in if the A...

Page 243: ...about using these conditional access pages 7 5 4 Web Server Page Descriptions Access to and availability of certain CDM 625A HTTP Interface pages are dependent upon the options purchased for operation...

Page 244: ...o set up user access manage the firmware load preferences and activate FAST features The Admin pages are available only to users who have logged in using the Administrator Name and Password Click the...

Page 245: ...ss List allows a user to define which remote clients can connect when the Access List is Enabled Each entry allows a user to specify an IP Address and a subnet mask to define a unique class of machine...

Page 246: ...cation Protocol Primary Secondary Server IP Address Enter the pertinent Server IP Addresses in the form xxx xxx xxx xxx Server Shared Secret Carefully enter the word to be used 64 characters maximum a...

Page 247: ...Write Trap Community Strings SNMP Contact Name Location Create or edit these alphanumeric text strings as follows Setting Factory Default Typical Parameters SNMP Read Community String public The Read...

Page 248: ...d is installed the Packet Processor tab to continue 7 5 4 2 3 1 Admin Firmware Base Modem Use this page to view the scrollable read only status windows that provide information about the basic unit s...

Page 249: ...stall and enable the optional IP Packet Processor card See Sect 7 5 3 1 for complete details about using conditional access pages Use this page to view the status window for the optional IP Packet Pro...

Page 250: ...f the CDM 625A The page updates to indicate the reboot in progress as follows Depending on the number of installed hardware and firmware options it may take up to one minute for soft reboot to execute...

Page 251: ...uthorization codes that may be purchased from Comtech EF Data and then activated in the unit using this page Contact Comtech EF Data Product Support to order the desired options and obtain your unique...

Page 252: ...ead only section displays the operational status for a number of FAST enabled features Installed Options This scrollable read only list box displays the installed and presently operational FAST enable...

Page 253: ...uration pages to configure all operating parameters for the CDM 625A including its ODUs Outdoor Units when connected Click the Modem LAN Routing Managed Switch WAN Overhead Utilities D I BUC LNB or AN...

Page 254: ...Framing Modes have higher priority than other parameters and should be configured before setting other parameters The page appearances changes with your selection of operating mode Figure 7 11 shows t...

Page 255: ...inue 7 5 4 3 2 1 Configuration LAN IP Figure 7 13 Configuration LAN IP page Network Configuration Ping Reply Use the drop down list to select Ping Reply as Disabled or Enabled When Enabled the modem r...

Page 256: ...c Mgmt IP Address and subnet mask Configure the modem s IP Addresses using these fields MAC Learning applicable only in Managed Switch Mode Use the drop down list to select MAC Learning as On or Off L...

Page 257: ...essage Note that before clicking OK to proceed with reboot of the modem you may first need to clear the PC s ARP table Click Submit to save Per Port Configuration Set the parameters on a per port basi...

Page 258: ...s Click Submit to save VLAN Table VLAN Entry Action Set the table entry action as None Edit Delete or Add o None No actions will be taken on the VLAN priority rule for the selected VLAN ID o Edit Clic...

Page 259: ...Interface in Router Mode on a given network answers the ARP queries for a network address that is not on this network but is reachable via the IP Packet Processor Interface Use this page to configure...

Page 260: ...directly add a static ARP entry Note that the index will automatically increment to the next available number Click Add Entry to save Delete Static ARP Enter Entry Index to Delete and then click Dele...

Page 261: ...WAN Port 1 Port 2 Port 3 or Port 4 as the source port from which to direct mirror traffic Destination Capturing Use the drop down list to set the port to which to direct captured traffic Port 1 Port...

Page 262: ...iguration Routing Routes page Route Table Edit This section displays and allows you to edit all current Route Table entries Note the following Column Description Index This is the internal table index...

Page 263: ...rough Key 8 assigned using the Configuration WAN Encryption page Sect 7 5 4 3 5 3 or Random Key You must program all eight encryption and decryption keys before selecting Random Key otherwise the mode...

Page 264: ...is the maximum response time inserted into group specific queries that are set in response to Leave Group messages and it is also the amount of time between group specific query messages This value m...

Page 265: ...ed to the Query Response Interval must be less than the Query Interval Click Submit to save IGMP Joined Groups This read only table lists the IGMP Groups that are active on the modem This allows you t...

Page 266: ...cidentally being configured with the same IP Address The CDM 625A DHCP Relay feature allows you to deploy a single DHCP server at the hub that manages all of the devices throughout your remote network...

Page 267: ...in Name System caching DNS caching provides an efficient way for DNS to keep the Internet synchronized as the IP addresses of some servers change and as new servers come online Figure 7 19 Configurati...

Page 268: ...eration in a point to point topology It supports VLAN as well as advanced features such as QoS Header Compression Payload Compression and Encryption Decryption Figure 7 20 Configuration Managed Switch...

Page 269: ...se the key specified in the Encryption Decryption Configuration Page Sect 7 5 4 3 5 3 to encrypt WAN traffic o Select Disable to force the IP Module to not encrypt any WAN traffic o Select Random to c...

Page 270: ...page depends on the active mode of QoS operation The active mode appears at the upper left hand page corner below the nested QoS menu tab Max Priority Mode or Min Max Mode see Figure 7 21 DiffServ Mod...

Page 271: ...ed Remote Product Management Revision 4 7 41 7 5 4 3 5 1 1 Configuration WAN QoS Pages Max Priority Min Max Modes TOP QoS Control Mode Max Priority BOTTOM QoS Control Mode Min Max Banner Menu Bar SAR...

Page 272: ...nation IP Address Mask in the form XXX XXX XXX XXX YY Min Src Port Specifies the Minimum Source Port Max Src Port Specifies the Maximum Source Port Min Dst Port Specifies the Minimum Destination Port...

Page 273: ...herwise the default of no bandwidth restriction can be selected Max BW Kbps Assign a value to a flow to restrict the Maximum Bandwidth that any particular flow will utilize otherwise the default of no...

Page 274: ...in Max pages Enter Rule Index to Delete and then click Delete Rule to execute deletion of the specified rule from the QoS Rules Table Delete All Max Pri Min Max QoS Rules Use With Caution For the Max...

Page 275: ...ct R 3 3 2 Layer 3 QoS List of Supported RFCs Requests for Comment Appendix R QUALITY of SERVICE QoS Figure 7 22 Configuration WAN QoS page DiffServ Mode Differentiated Services ASFD Precedence Based...

Page 276: ...rwarding ASFD classes in case of bandwidth availability once Class Selector 7 through Class Selected 1 have been serviced Service Rate This field is active when the ASFD Bandwidth Mode is set to Perce...

Page 277: ...witch page see Sect 7 5 4 3 4 Use this Managed Switch link to enable Header and Payload Compression Header Compression Header Comp RTP Refresh Rate Enter a time for the Real Time Protocol refresh rate...

Page 278: ...ST feature is enabled When AES Encryption is active and enabled on a WAN route the IP Packet Processor will encrypt all outgoing traffic on the WAN and decrypt any encrypted traffic it receives Figure...

Page 279: ...default or Drop Note the following Under the default Allow setting the local modem allows receipt of unencrypted plain text packets from the remote modem over the WAN even when encryption is enabled...

Page 280: ...a key is currently clear set to all zeroes 7 5 4 3 6 Configuration Overhead This page appearance depends on whether Carrier in Carrier Automatic Power Control CnC APC Mode is selected Chapter 6 FRONT...

Page 281: ...Backward Alarms for Tx 1 4 and Rx 1 4 AUPC when Carrier in Carrier Automatic Power Control is disabled de activated CnC APC when Carrier in Carrier Automatic Power Control is enabled activated See Se...

Page 282: ...ration Utilities Utilities1 page Redundancy If the unit is part of a 1 1 redundant pair of modems and this unit is currently online click Force 1 1 Switch to cause the unit to switch to standby Re Cen...

Page 283: ...haracters of the Circuit ID will display on the front panel screen saver see Sect 6 1 3 1 Screen Saver Appendix D CARRIER ID MetaCarrier Enter a Circuit ID string of up to 40 character You may use the...

Page 284: ...location is noted on its menu line as Available Click Submit Save Load to save 7 5 4 3 7 2 Configuration Utilities Carrier ID Appendix D CARRIER ID MetaCarrier Figure 7 27 Configuration Utilities Car...

Page 285: ...tom Message are two distinct features of the CDM 625A Read your documentation carefully With Carrier ID Enabled the first 24 characters of the 40 character Circuit ID are intended for and sent as the...

Page 286: ...LOCK MODES AND DROP AND INSERT D I Figure 7 28 Configuration D I page Selected Framing Mode D I The appearance of this page is dependent on the framing mode selected on the Configuration Modem page Se...

Page 287: ...lled you may use this page to configure its operating parameters and to view the BUC operational status Figure 7 29 Configuration BUC page 7 5 4 3 10 Configuration LNB Low Noise Block Down Converter C...

Page 288: ...ppendix K ETHERNET NETWORK CONFIGURATION All network devices between the Grandmaster and Slave devices must support PTP for sub microsecond accuracy Precision Time Protocol PTP is a FAST activated fea...

Page 289: ...message per second 2 messages per second 4 messages per second 8 messages per second 16 messages per second 32 messages per second 64 messages per second Use Unicast Sync Interval only when the Grandm...

Page 290: ...as Disabled or Enabled Time Zone Use the drop down list to select your desired time zone Available selections are GMT GMT 01 00 GMT 02 00 GMT 03 00 GMT 03 30 GMT 04 00 GMT 04 30 GMT 05 00 GMT 05 30 GM...

Page 291: ...61 Click Submit to save Date and Time Enter a time using HH MM SS format where HH hour 00 to 23 MM minutes 00 to 59 and SS seconds 00 to 59 Enter a date using DD MM YY format where DD day 01 to 31 MM...

Page 292: ...ry and Non Primary CDM 625 s four 10 100 Ethernet ports The Antenna Handover signal received from the user provided IF RF switch determines which modem is the ONLINE or OFFLINE unit The ONLINE unit tr...

Page 293: ...Before Make or Make Before Break Feature Use the drop down list to select Antenna Handover operation as Disabled or Enabled Mode Use the drop down list to set the Antenna Handover action as Auto or M...

Page 294: ...Info Traffic Statistics or when you install and enable the optional IP Packet Processor card the Performance tab to continue 7 5 4 4 1 Status Modem Status Use this page to view read only status windo...

Page 295: ...cket Processor card the Packet Processor tab to continue 7 5 4 4 2 1 Status Modem Logs Base Modem Use this page to control how the fault statistics and alarm masking parameters are processed by the un...

Page 296: ...Clear Statistics Log feature before retrieving any further statistics Under normal operation this section contains statistics information as per this example Read Next Five Statistics Click to buffer...

Page 297: ...igure 7 36 Status Modem Logs Packet Processor page Event Logging Logging On Off Select event logging as On or Off Logging Level Use the drop down list to select the type of information displayed in th...

Page 298: ...ement Revision 4 7 68 7 5 4 4 3 Status Modem Info Use this page to view read only information about the currently configured modem General Information Equipment ID Scrollable windows listing Installed...

Page 299: ...P Packet Processor card the Router Managed Switch WAN Compression QoS PTP MAC Table or Clear Counters tab to continue 7 5 4 4 4 1 Status Traffic Statistics Ethernet Use this page to view Ethernet Ingr...

Page 300: ...nd when you install and enable the optional IP Packet Processor card See Sect 7 5 3 1 for complete details about using conditional access pages Use this page to view cumulative router traffic informat...

Page 301: ...you install and enable the optional IP Packet Processor card See Sect 7 5 3 1 for complete details about using conditional access pages Use this page to view cumulative Managed Switch traffic informat...

Page 302: ...r card is not installed installed but Disabled or if it is installed and Enabled See Sect 7 5 3 1 for complete details about using conditional access pages Use this page to view cumulative WAN traffic...

Page 303: ...tatus Traffic Statistics Compression This nested page is accessible only to Admin users and when you install and enable the optional IP Packet Processor card See Sect 7 5 3 1 for complete details abou...

Page 304: ...u install and enable the optional IP Packet Processor card Sect 7 5 3 1 for complete details about using conditional access pages Use this page to view cumulative Quality of Service information Figure...

Page 305: ...ick Refresh to update this section with its most recently accumulated statistics These status parameters are read only and cannot be changed Note the following Row Title from top Description PTP Offse...

Page 306: ...of PTP announce messages transmitted received from another PTP device Sync Number of synchronization messages transmitted received from a master PTP device Followup Number of follow up messages transm...

Page 307: ...MAC Table page MAC Table Click Refresh to update the page with the latest discovered MAC Addresses From left to right note the following Column Description MAC The MAC Address of the device on LAN WAN...

Page 308: ...atistics Clear Counters Use this page to clear and reset the counters for all Traffic Statistics pages Ethernet and when applicable Router Managed Switch WAN Compression QoS and PTP Figure 7 46 Status...

Page 309: ...nue 7 5 4 4 5 1 Status Performance Performance Use this page to view a tabulated snapshot of the CDM 625A performance statistics Figure 7 47 Status Performance Performance page CPU Usage Component CPU...

Page 310: ...viewing time increments Click Add Big to display a line graph with an extended scale Y axis Click Add Small to display a line graph with a compressed scale Y axis For either line graph use the compone...

Page 311: ...Outdoor Unit pages to control and monitor the CSAT 5060 or KST 2000A B Outdoor Unit that is connected via FSK to the CDM 625A 2 The Comtech EF Data LPOD Amplifier Block Up Converter is not supported...

Page 312: ...cy Switch or a CRS 500 M N Redundancy System in 1 N mode based on the following criteria Redundancy Device Packet Processor Terrestrial Interface Mode CRS 300 Disabled Any Any CRS 500 Disabled EIA 422...

Page 313: ...undancy Switch there is no need to use the drop down list here as the modem automatically enables the IP Packet Processor Redundancy If it is desired to operate either modem outside of the redundant s...

Page 314: ...CDM 625A Advanced Satellite Modem MN CDM625A Ethernet based Remote Product Management Revision 4 7 84 Notes...

Page 315: ...n this appendix 8 2 EIA 485 For applications where multiple devices are to be monitored and controlled a full duplex or 4 wire plus ground EIA 485 is preferred Half duplex 2 wire plus ground EIA 485 i...

Page 316: ...ine receiver Controller and all Targets have Tri State drivers 8 3 EIA 232 This is a much simpler configuration in which the Controller device is connected directly to the Target via a two wire plus g...

Page 317: ...d characters are considered printable With one exception all messages from Controller to Target require a response this will be either to return data that has been requested by the Controller or to ac...

Page 318: ...the front panel keypad The Controller sends a packet with the address of a Target the destination of the packet When the Target responds the address used is the same address to indicate to the Control...

Page 319: ...wo ways a If the Controller has sent a query code to a Target EXAMPLE TFQ meaning what s the Transmit frequency the Target would respond with TFQ xxxx xxxx where xxxx xxxx represents the frequency in...

Page 320: ...001 RET indicating that it had finished waiting for a response and was now ready for further comms ASCI code 94 If the Controller sends a correctly formatted command BUT the modem is in Ethernet Remot...

Page 321: ...AGE CODE C Q PAGE APP X X 8 15 TBA X X 8 17 TFQ X X 8 13 TMX X X 8 13 TTF X 8 17 AUP X X 8 15 TCI X X 8 16 TFT X X 8 11 TPL X X 8 14 TVL X X 8 16 DTS X X 8 17 TCK X X 8 16 TIR X 8 17 TRS X X 8 14 TXA...

Page 322: ...SSI X X 8 31 BKE X X 8 36 DAY X X 8 27 ISP X 8 33 PMI X X 8 42 TBP X X 8 36 BRE X 8 37 DMM X X 8 38 LAT X X 8 39 PMS X X 8 41 TIM X X 8 27 BRM X 8 37 DMT X 8 37 LNG X X 8 40 PTS X X 8 41 TPB X X 8 39...

Page 323: ...AGE CODE C Q PAGE BAD X X 8 59 BDC X 8 59 BOE X X 8 59 BPS X X 8 59 BCH X X 8 59 BDV X 8 59 BOL X 8 59 BSV X 8 60 BCL X X 8 59 BFR X X 8 59 BPA X 8 60 BUT X 8 60 BPC X 8 60 Sect 8 5 9 LNB Parameters L...

Page 324: ...or returns Tx Interface Type in the form x where 0 RS422 1 V 35 2 reserved do not use 3 Balanced G 703 4 Unbalanced G 703 5 Audio Data rate fixed at 64 kbps IBS EDMAC only 6 LVDS 7 HSSI 8 IP 9 ASI A I...

Page 325: ...FT TFT TFT x see Description of Arguments Tx Modulation Type TMD 1 byte 0 thru 8 Command or Query Query only in ACM Sets or returns Tx Modulation Type in the form x where 0 BPSK 1 QPSK 2 OQPSK 3 8 PSK...

Page 326: ...od 20 QPSK 0 734 V VersaFEC 2 ModCod 0 BPSK 0 489 W VersaFEC 2 ModCod 1 QPSK 0 489 X VersaFEC 2 ModCod 2 QPSK 0 537 Y VersaFEC 2 ModCod 3 QPSK 0 586 Z VersaFEC 2 ModCod 4 QPSK 0 611 a VersaFEC 2 ModCo...

Page 327: ...ach port 5 Read only if Modulation Type is a Reserved type EXAMPLE 0 TDR 02047 999 selects 2047 999 kbps TDR TDR TDR TDR TDR TDR xxxxx xxx see Description of Arguments Tx Symbol Rate TSR 9 bytes numer...

Page 328: ...EDMAC TRS TRS TRS TRS TRS TRS x see Description of Arguments Tx Spectrum Invert TSI 1 byte 0 or 1 Command or Query Sets or returns Tx Spectrum Invert selection in the form x where 0 Normal 1 Tx Spect...

Page 329: ...x where 0 0 35 1 0 25 2 0 20 3 0 15 4 0 10 5 0 05 EXAMPLE 0 TXA 0 Tx filter rolloff factor is 0 35 TXA TXA TXA TXA TXA x see Description of Arguments Power Level Mode was AUPC Enable AUP 1 byte 0 thru...

Page 330: ...level in dB from the nominal setting due to the action of AUPC Responds x x if AUPC is disabled EXAMPLE 0 PLI 0 PLI 2 3 N A PLI PLI x x see Description of Arguments Tx Clock Source TCK 1 byte 0 thru...

Page 331: ...bytes each 0 thru 2 Command or Query IDR parameter Sets or returns Tx Backward Alarm Enable in the form xxxx where 0 Disable 1 Enable Internal S W 2 Enable External H W EXAMPLE 0 TBA 0120 TBA TBA TBA...

Page 332: ...Qualifier Number of Arguments Description of Arguments Response to Command Query Instruction Qualifier Response to Query Tx Sub Mux IP Information Rate N A 9 bytes numeric Query only Allows remote ac...

Page 333: ...nterface Type in the form x where 0 RS422 1 V 35 2 reserved do not use 3 Balanced G 703 4 Unbalanced G 703 5 Audio only at 64 kbps IBS EDMAC only FAST option 6 LVDS 7 HSSI 8 IP 9 ASI A IP ACM B VersaF...

Page 334: ...Type RMD 1 byte 0 thru 8 Command or Query Query only in ACM Sets or returns Rx Demodulation in the form x where 0 BPSK 1 QPSK 2 OQPSK 3 8 PSK FAST option 4 16 QAM Turbo or Viterbi RS only FAST option...

Page 335: ...rsaFEC 2 ModCod 0 BPSK 0 489 W VersaFEC 2 ModCod 1 QPSK 0 489 X VersaFEC 2 ModCod 2 QPSK 0 537 Y VersaFEC 2 ModCod 3 QPSK 0 586 Z VersaFEC 2 ModCod 4 QPSK 0 611 a VersaFEC 2 ModCod 5 QPSK 0 635 b Vers...

Page 336: ...IDR RDR RDR RDR RDR RDR RDR xxxxx xxx see Description of Arguments Rx Symbol Rate RSR 9 bytes numeric Query only Command or Query in IP ACM or VersaFEC 2 ACM Allows remote access to the Rx Symbol Rat...

Page 337: ...25 205 unframed QDI only 3 IBS 126 112 unframed only NOTE Available in all framing modes except EDMAC this is a don t care if no R S is selected in FEC type EXAMPLE 0 RRS 0 selects Normal RRS RRS RRS...

Page 338: ...2 byte steps unless other limitations apply from 00016 to 32768 bytes See Chapter 6 Sect 6 2 1 5 2 EXAMPLE 0 RBS 08192 selects 8192 bytes RBS RBS RBS RBS RBS RBS xxxxx see Description of Arguments Rx...

Page 339: ...ler buffer EXAMPLE 0 RCB RCB RCB RCB RCB N A N A RX LO Frequency RLO 6 bytes Command or Query Sets or returns LNB Rx LO frequency information in the form xxxxxs where xxxxx LO frequency 03000 through...

Page 340: ...n Qualifier Length of Argument Description of Arguments Response to Command Query Instruction Qualifier Response to Query Rx Sub Mux IP Info Rate N A 9 bytes numeric Query only Allows remote access to...

Page 341: ...PL 1 byte numeric Command or Query Sets or returns the state of front panel lockout in the form x where 0 no lockout 1 front panel lockout active NOTE Disable the lockout by either FPL 0 or by setting...

Page 342: ...its parity stop bits 0 8N1 char format 1 7E2 char format 2 7O2 char format z interface type 0 RS 232 1 RS 485 NOTE The baud rate may be limited by the data rate The ESC baud rate breakpoints determine...

Page 343: ...mulation MRC EFR x see Description of Arguments Exception 600L Emulation MRC x Adjustment for Internal 10MHz High stability Reference ADJ 4 bytes numeric Command or Query Sets or returns fine adjustme...

Page 344: ...status ABA ABA ABA ABA ABA ABA x see Description of Arguments Attach summary LNBfault to Rx FLT status ALA 1byte 0 or1 Command or Query Sets or returns LNB fault reporting in the form x where 0 Rx FLT...

Page 345: ...u 9 in 10 minute steps NOTE Set this parameter to 0 thru disable the statistics logging function EXAMPLE 0 SSI 3 interval is set at 30 minutes SSI SSI SSI SSI SSI SSI x see Description of Arguments Nu...

Page 346: ...2 ACM modes Comtech EF Data recommends that you execute the Clear All Stored Statistics CAS command before retrieving any further statistics Retrieve next 5 unread New Stored Statistics N A 180 bytes...

Page 347: ...change your operating mode between Non ACM and ACM IP ACM or V2 ACM modes Comtech EF Data recommends that you execute the Clear All Stored Statistics CAS command before retrieving any further statisti...

Page 348: ...traffic in the form aaa bbb ccc ddd yy where aaa 000 223 bbb 000 255 ccc 000 255 ddd 001 255 yy Subnet Mask Length 08 to 30 EXAMPLE 0 IPT 010 006 030 002 24 IPT IPT IPT IPT IPT IPT aaa bbb ccc ddd yy...

Page 349: ...e the installed options for the modem 2 If CnC APC is active APS 22 key transmission reception Modulation FEC type Code Rate Framing Data Rate Interface cannot be modified until CnC APC is suspended U...

Page 350: ...is G 703 only 0 None is allowed If Tx clock TCK is not Internal 1 TxLock is not allowed CEX CEX CEX CEX CEX CEX ab see Description of Arguments Tx BERT State BTX 1 byte 0 or1 Command or Query Sets or...

Page 351: ...cription of Arguments BERT Restart Monitor BRM None Command only This command takes no arguments Forces restart of the BERT monitor EXAMPLE 0 BRM BRM N A N A BERT Result in biterrors N A 7 bytes numer...

Page 352: ...M ACM ACM mMAT see Description of Arguments Forced Reboot FRB None Command only This command takes no arguments Forces a hard reset of the unit after 5 seconds FRB FRB FRB FRB N A N A Carrier ID State...

Page 353: ...led TPE TPE TPE TPE x see Description of Arguments Primary Ethernet Time Server TPS 15 bytes Command or Query Sets or returns the Primary Ethernet Time Server IP Address for the Unit Tx Ethernet manag...

Page 354: ...MSG x see Description of Arguments Radius Client RAE 1 byte 0 or 1 Command or Query Sets or returns the RADIUS Client in the form x where 0 Disabled 1 Enabled EXAMPLE 0 RAE 0 NOTE Parameter available...

Page 355: ...s Precision Time Protocol Unicast Master PTS 15 bytes Command or Query Sets or returns the PTP Unicast Master IP Address in the form xxx xxx xxx xxx PTS PTS PTS PTS PTS PTS xxx xxx xxx xxx see Descrip...

Page 356: ...rt monitoring direction in the form x where 1 Ingress Rx 2 Egress Tx 3 Both Rx and Tx EXAMPLE 0 PMI 1 PMI PMI PMI PMI PMI PMI x see Description of Arguments Simple Network Time Protocol Time Zone TPZ...

Page 357: ...aaCXIKNZffff fff fddddd dddgyrmvsww wcll lbbbbbiknzOEEEE TeeeeeeeeeeeeeWAL QUHHHHhhhhJJJJjjjja bcdefxxxxxxxxxxrrrrr rr rsssss ssshgkpmnnntt uuu uuu uuu uuu uuvv v vvv vvv vvvxGHIJKw AAABBBCCCeexEFG G...

Page 358: ...X Sub Mux Ratio mMAT rrrrr rrr TX Symbol Rate sssss sss RX Symbol Rate h HSSI handshake control g RTS CTS setting k Rx Equalizer Enable p Power On Carrier Off Enable m ESC enable nnn ESC parameters tt...

Page 359: ...1 M 22 N 23 O 24 P 30 Q 31 R 32 S 33 T 34 U 40 V 41 W 42 X 43 Y 44 EXAMPLE BN is converted to 0123 that means Port 1 is AutoNeg Port 2 is 100Full Port 3 is 100Half Port 4 is 10Full OGCOutdoor Unit Glo...

Page 360: ...cannot be programmed i e FIXED CHANNEL MODE The DNI response will display all x in the time slot positions DNI DNI DNI DNI DNI DNI n where n 0 thru 9 Returns the DNI portion of 1 of 10 stored configu...

Page 361: ...789ABCDEFGHIJKLMNOPQRSTUV031123456789ABCDEFGHIJKLMNOPQRSTUV00000 Port 1 s Drop and Insert channels 1 31 each using timeslots 1 31 E1 clock mode is asynchronous Read Write using Port 1 string EXAMPLE 2...

Page 362: ...y only Response in the form abcccc ddddd eeffffffggggghhh where a LRS response b RED response cccc EBN response ddddd BER response eeeee BFS Response ffffff RFO response ggggg RSL response hhh TMP res...

Page 363: ...11 09 14 FW 12874C 1 6 0 15 08 11 FW 0020734D 1 3 1 07 10 14 FW 0020739 1 1 1 24 07 13 FW 0000516 1 1 1 19 01 11 FW 0020740v 1 1 v 06 08 14 N A FRW B FRW 1 FRW 2 FRW xxx xxx see Description of Argumen...

Page 364: ...etwork Processor card where 0 not present 1 present F spare 0 G External 20dB attenuator where 0 not present 1 present H Audio chips where 0 not present 1 present s spares 0 Firmware FAST options J Fr...

Page 365: ...ndard Unframed EDMAC EDMAC2 1 Option 0 plus Open Network IBS with hi rate ESC IDR Audio S D I option where 0 None 1 D I D I for single port E1 T1 2 Option 1 plus Quad D I 4 ports T G 703 Clock Extensi...

Page 366: ...VersaFEC 2 CCM data rate option where 0 Base up to 5Mbps 1 up to 10 Mbps 2 up to 15 Mbps 3 up to 20 Mbps 4 up to 25 Mbps d VersaFEC 2 ACM symbol rate option where 0 None 1 up to 1200 ksps 2 up to 200...

Page 367: ...e Description of Arguments Buffer Fill State N A 2 bytes numeric Query only Returns the value of the buffer fill state in the for xx where xx Percentage value from 01 to 99 NOTE Returns 00 if demodula...

Page 368: ...atus N A 10 bytes Query only Returns the current highest priority fault and status codes for the Unit hardware TX Traffic RX Traffic and ODUs a Unit status 0 No faults 1 Power supply fault 5 volts 2 P...

Page 369: ...rame SYNC 4 CnC Lock 5 Buffer Slip 6 AIS detected on incoming data 7 Eb No alarm 8 Buffer Clock activity 9 LNB summary alarm if ALA enabled A QDI Deframer Unlocked Exception 600L 9 LNB current A LNB v...

Page 370: ...an estimated frequency offset in kHz is calculated between the interferer and the desired power EXAMPLE 1 0 CFM 0 CFM 001 0 1 kHz EXAMPLE 2 0 CFM 0 CFM 9999 9 not locked or CnC not enabled N A CFM CF...

Page 371: ...CnC APC state N A 2 bytes Query only Returns the state of APC operation Return value is in form xx where 00 APC is not active 01 No Solution 02 OK ReBalance Done 03 OK Partial CnC Ratio approaches lim...

Page 372: ...el increase in 0 1 dB ddd APC Tx power threshold in 0 1 dB minus sign assumed EXAMPLE 0 AHS 1 100 60 085 APC is active home state power is 10 0 dB home state max power level increase is 6 0 dB power t...

Page 373: ...xxxx Value in 100 mA increments from 0000 thru 4000 mA BCH BCH BCH BCH BCH Exception 600L Emulation ODH BCH xxxx see Description of Arguments BUC Address BAD Exception 600L Emulation OAD 1 byte 1 thr...

Page 374: ...0 or 1 Query only Returns BUC phase lock loop in the form x where 0 Locked 1 Unlocked NOTE This query is only valid when the FSK is enabled N A BPA Exception 600L Emulation OLL BPA x see Description o...

Page 375: ...LNB Reference in the form x where 0 Disable LNB Reference 1 Enable LNB Reference LNR LNR LNR LNR LNR LNR x see Description of Arguments LNB Low Current Limit LNL 3 bytes numeric Command or Query Sets...

Page 376: ...N A NPS NPS abcd see Description of Arguments Ethernet Global Configuration EGC Up to 347 bytes Command or Query Sets or returns Global Configuration of CDM 625A Ethernet in the form shown in the Resp...

Page 377: ...or returns all entries in the VLAN table in the form aaaabcde aaaabcde aaaabcde where aaaa VLAN ID Value range 0001 4095 must not be duplicate of any PVID b property of port 1 0 Tagged 1 Filtered 2 Un...

Page 378: ...cessor option card installed and enabled QOS QOS QOS QOS QOS QOS ab see Description of Arguments Switch Ports Configuration SPC 47 bytes Command or Query Sets or returns Ethernet switch ports priority...

Page 379: ...IP Host Access List function in the form x where 0 Host Access List is Disabled 1 Host Access List is Enabled ACL ACL ACL ACL ACL ACL x see Description of Arguments Packet Processor Redundancy PRD 1...

Page 380: ...er Response to Query Packet Processor Image2 FW Version N A None Query only Valid only when Packet Processor is installed and Enabled Returns Packet Processor Image 2 firmware version N A VS2 VS2 x x...

Page 381: ...terminal emulator e g PuTTY or Tera Term 9 1 1 Interface Access Any changes made to the modem that are not saved to permanent storage during the active session will be lost if the modem is reset or lo...

Page 382: ...rred terminal emulators 2 Use of the HyperTerminal terminal emulator is not supported or recommended 3 The numeric keypad s ENTER key may not work on some terminal emulators 9 1 2 1 Using the PuTTY Te...

Page 383: ...Username and Password The Telnet CLI Home menu should now be accessible 1 In order to use the Telnet CLI to make configuration changes to the CDM 625A Remote Access Mode should always be set to Ethern...

Page 384: ...ace CLI Operation Revision 4 9 4 9 1 2 2 Using the Tera Term Terminal Emulator First you must define your Telnet session connection Select TCP IP For Host enter the interface IP Address e g 192 168 1...

Page 385: ...vision 4 9 5 Next before you log in Tera Term requires the following settings on the Setup Terminal page For New Line Receive use the drop down list to select CR For New Line Transmit use the drop dow...

Page 386: ...25A Telnet Command Line Interface CLI Operation Revision 4 9 6 The Telnet CLI Home menu should now be accessible In order to use the Telnet CLI to make configuration changes to the CDM 625A Remote Acc...

Page 387: ...ctions e g Carrier in Carrier are functional only when that FAST feature has been purchased and enabled for operation This chapter documents the CLI as if all available options are installed your conf...

Page 388: ...ce a menu option is selected its dialog window opens and you must use the arrow keys to select a functional choice Other dialog windows require entry of a descriptive alphanumeric string or an operati...

Page 389: ...ction Selection Action Save Save any changes made to the page to memory Discard Exit the page without saving and return to the parent submenu Go Back Return to the active configuration window to revie...

Page 390: ...uration submenu 9 3 5 E Outdoor Unit ODU Access ODU comms CSAT 5060 configuration submenus summary only 9 3 6 F Redundancy Access 1 1 or 1 N redundancy configuration submenu 9 3 7 G General Informatio...

Page 391: ...ys to select the Remote Mode as Ethernet and press ENTER to accept the selection Finally press F8 to save to memory Note the following Remote Access Mode Selection Function Local Configuration using F...

Page 392: ...d 9 3 2 3 D Firmware Packet Processor View Packet Processor firmware information or select image load E Reboot Reboot the CDM 625A 9 3 2 4 F FAST Options Set the FAST Feature Demo Mode or view current...

Page 393: ...s IP List Entry Enable K Access IP 4 Access IP List Entry Enable C Access IP 1 Access IP Address Typical for each entry Enter each IP Address in the form XXX XXX XXX XXX F Access IP 2 Access IP Addres...

Page 394: ...designations B Name C Location D Enable Authentication Traps Use the arrow keys to select Enabled or Disabled E SNMP Trap Destination IP Address 1 Typical for either entry Enter either IP Address in t...

Page 395: ...e these pages to view the current firmware information or to select the alternate firmware image to be loaded at startup or reboot Both pages contain the following option Hot Key Dialog Window Option...

Page 396: ...en the Reboot page from the Administration submenu Use this page to perform a soft reboot of the CDM 625A Otherwise press ESC to return to the Administration submenu Hot Key Dialog Window Option Entry...

Page 397: ...ion Revision 4 9 17 9 3 2 5 Home Administration FAST Chapter 5 FAST ACTIVATION PROCEDURE Sect 6 2 8 SELECT FAST Menus in Chapter 6 FRONT PANEL OPERATION Open the FAST Options page from the Administrat...

Page 398: ...d default or Enabled 1 If Enabled the CDM 625A begins operation in FAST Demo Mode FAST Options Demo Mode allows access to ALL CDM 625A FAST options for 30 calendar days 2 You must reboot the modem aft...

Page 399: ...to Slot or Load from Slot dialog window Otherwise press ESC to return to the Administration submenu Each modem configuration is stored in an assigned slot 0 through 9 If a configuration slot is availa...

Page 400: ...on Wait while the configuration is stored into memory Once a modem configuration is stored into the designated slot the time and date are recorded and this information appears on the configuration slo...

Page 401: ...ttings to the original settings as shipped from the factory Hot Key Dialog Window Option Entry A Restore Factory Defaults Use the arrow keys to set as Cancel default or Restore Press A to open the Res...

Page 402: ...and Insert D I Configure D I parameters 9 3 3 6 G Block Upconverter BUC Configure BUC parameters and view operating statistics 9 3 3 7 H Low Noise Block Downconverter LNB Configure LNB parameters and...

Page 403: ...log Window Option Entry A Tx Interface Type Typical for either entry Use the arrow keys to select RS 422 V 35 G 703 Balanced C Rx Interface Type G 703 Unbalanced Audio LVDS HSSI IP ASI IP ACM B Tx Fra...

Page 404: ...B Tx Mod Type Use the arrow keys to select BPSK QPSK OQPSK 8PSK 16QAM 8QAM 8 ARY VFEC 2 16 ARY VFEC 2 32 ARY VFEC 2 C Tx FEC Code Rate Use the arrow keys to select the Tx FEC Code Rate See the table p...

Page 405: ...Off On RTI 10 s timeout Off External Off BUC delay RTI 1 s timeout RTI 2 s timeout RTI 4 s timeout RTI 7 s timeout O POCO Use the arrow keys to select Disabled or Enabled P Tx Submux Use the arrow key...

Page 406: ...M TCM Reed Solomon TPC None Diff Enc Off LDPC VersaFEC ULL VersaFEC 2 Long Block VersaFEC 2 Short Block B Rx Mod Type Use the arrow keys to select BPSK QPSK OQPSK 8PSK 16QAM 8QAM C Rx FEC Code Rate Us...

Page 407: ...a Invert Typical for either entry Use the arrow keys to select Normal or Inverted L Rx Data Clock Invert M Rx Ternary Code Use the arrow keys to select AMI B8zs B6zs or Hdb3 N Rx EbNo Alarm Point Ente...

Page 408: ...CnC Mode Use the arrow keys to select Off On Normal APC CBand Side A APC XBand Side A APC KuBand Side A APC KaBand Side A APC CBand Side B APC XBand Side B APC KuBand Side B APC KaBand Side B B CnC Se...

Page 409: ...for the Minimum and Maximum Tx ModCod settings This submenu contains the following options Hot Key Dialog Window Option Entry A ACM Min Tx Mod Cod Enter a minimum value from 0 to 11 B ACM Max Tx Mod C...

Page 410: ...options Hot Key Dialog Window Option Entry A Drop Type Typical for either entry Use the arrow keys to select T1D4 T1 ESF E1 CCS or E1CAS B Insert Type C Tx Terrestrial Alarm Mask Use the arrow keys t...

Page 411: ...and then press ENTER to accept the change or ESC to return to the D I page Hot Key E D I Table The D I Table dialog window shows the current value for the table To edit the table value press A and th...

Page 412: ...Description of Arguments column SECT 8 5 5 Bulk Configuration Strings page 8 45 in CHAPTER 8 SERIAL BASED REMOTE PRODUCT MANAGEMENT Hot Key G D I Quad Table The D I Quad Table dialog window shows the...

Page 413: ...keys to select Disable or Enable B BUC 10 MHz Reference Typical for either entry Use the arrow keys to select Off or On C BUC RF Output D BUC Low Current Limit Enter a low limit value from 0 to 4000...

Page 414: ...dow Option Entry A LNB DC Power Use the arrow keys to select Off On 13V On 18V or On 24V B LNB 10 MHz Reference Use the arrow keys to select Disable or Enable C LNB Low Current Limit Enter a low limit...

Page 415: ...nterface CLI Operation Revision 4 9 35 9 3 3 9 Home Modem MEO Medium Earth Orbit FUTURE MEO Medium Earth Orbit and its associated functions are not supported in FW Ver 1 2 4 Its hot key and nested scr...

Page 416: ...ollable Utilities page from the Modem submenu This page contains the following options Hot Key Dialog Window Option Entry A Unit Test Mode Use the arrow keys to select Normal Tx CW Tx Alt10 Pattern IF...

Page 417: ...rrow keys to select Internal External 1 MHz External 2 MHz External 5 MHz External 10 MHz Internal Plus Output M G703 Clock Extend Mode Use the arrow keys to select None Tx Lock or Rx Enable N G703 Cl...

Page 418: ...er entry Use the arrow keys to select 64k Data Channel or 2 Audio Channels B IDR Rx ESC Type C Tx Audio Volume Port 1 Typical for each entry Use the arrow keys to select D Tx Audio Volume Port 2 Negat...

Page 419: ...d Alarm Enable Port4 Q AUPC Enable Use the arrow keys to select Disable or Enable R AUPC Remote Demod Target Eb No Enter a value from 0 0 to 14 9 dB S AUPC Tx Power Max Increase Enter a value from 0 t...

Page 420: ...ce on the local LAN 9 3 4 5 F Managed Switch Configure Header and Payload Compression and Encryption operations 9 3 4 6 G IGMP Configure use of IGMP Internet Group Management Protocol with configured...

Page 421: ...4 1 Home Network Ethernet Ports Open the scrollable Ethernet Ports page from the Network submenu This page lists the current configuration settings for Ethernet Ports 1 through 4 Use the arrow keys t...

Page 422: ...ing options Hot Key Dialog Window Option Entry A Ethernet Ports Speed Use the arrow keys to select Auto Full 100 Mbps Half 100 Mbps Full 10 Mbps Half 10 Mbps B Ethernet Ports Pause Flow Control Use th...

Page 423: ...IP Address D IP Network Prefix Enter a value from 8 to 30 E Switch MAC Learning Use the arrow keys to select Off or On F L2 QoS Use the arrow keys to select Off VLAN Prio Only Port Prio Only or VLAN a...

Page 424: ...rom the Network submenu This page contains the following options Hot Key Dialog Window Option Entry A ARP Table Use the arrow keys to select a table see Sect 9 3 4 3 1 B Flush Dynamic ARP Entries Use...

Page 425: ...e g ARP Entry 1 and press ENTER to view in a standalone window a specific ARP Entry page as shown in this example This window displays the ARP Type for the specific ARP Entry It contains the following...

Page 426: ...is submenu contains the following options Hot Key Dialog Window Option Entry A VLAN Table Use the arrow keys to select a table see Sect 9 3 4 3 1 B VLAN Mode Enable Use the arrow keys to select Disabl...

Page 427: ...tandalone window a specific VLAN page as shown in this example Each available VLAN page contains the following options Hot Key Dialog Window Option Entry A VLAN Entry VID Enter a value from 1 to 4095...

Page 428: ...from the Network submenu This page contains the following options Hot Key Dialog Window Option Entry A Route Table Use the arrow keys to select an index see Sect 9 3 4 5 1 B Delete All Route Entries...

Page 429: ...ey Dialog Window Option Entry A Route Description Enter a description here B Route Destination Address Mask Enter an IP Address Range in the form XXX XXX XXX XXX XX C Route Interface Use the arrow key...

Page 430: ...ng options Hot Key Dialog Window Option Entry A Header Compression Use the arrow keys to select Disable Layer 2 Only or Layer 2 And 3 B Payload Compression Typical for either entry Use the arrow keys...

Page 431: ...none exist this window displays the message No IGMP Groups B Multicast Traffic Lists the Multicast Routes that are active on the modem If none exist this window displays the message No IGMP Multicast...

Page 432: ...sh Use the arrow keys to select Cancel or Flush Press a hot key to open a dialog window Otherwise press ESC to return to the Network submenu 9 3 4 9 Home Network DHCP Dynamic Host Configuration Protoc...

Page 433: ...Open the PTP Precision Time Protocol page from the Network submenu This page contains the following options Hot Key Dialog Window Option Entry A PTP Feature Use the arrow keys to select Disable or Ena...

Page 434: ...arrow keys to select Disabled or Enabled B SNTP Primary Server Typical for either entry Enter an IP Address in the form XXX XXX XXX XXX C SNTP Backup Server R O SNTP Primary Last Update These read on...

Page 435: ...le Open the MAC Table page from the Network submenu Use this page to review status information on the recognized MAC Addresses Use the arrow keys to scroll through the available indices You may also p...

Page 436: ...Key Configuration Page Function Sect A QoS Configure Quality of Service operation 0 B Compression Configure Router Mode compression refresh rates 9 3 5 2 C Encryption Configure Managed Switch Mode Enc...

Page 437: ...mode set to DiffServ This submenu contains the following options Hot Key Page Dialog Window Description Option Entry A QoS Max Pri Min Max Table visible only when Advanced QoS mode is set to Max Prio...

Page 438: ...Pri Min Max Table Open the scrollable QoS Table Max Pri Min Max Table from the QoS submenu Use the arrow keys to scroll through the available entries You may also select a header e g Index 1 and pres...

Page 439: ...r a value from 0 to 100000000 Kbps D AF3 Service Rate G AF2 Service Rate J AF1 Service Rate B AF4 Medium Drop Precedence Level Typical for each entry Enter a value from 20 to 90 E AF3 Medium Drop Prec...

Page 440: ...bmenu This page contains the following options Hot Key Dialog Window Option Entry A Header Comp RTP Refresh Rate Typical for each entry Enter a value from 1 to 600 B Header Comp UTD Refresh Rate C Hea...

Page 441: ...on Entry A Allow Unencrypted Rx Use the arrow keys to select Drop or Allow B Encryption Feature Use the arrow keys to select Disable or Enable C Encryption Key Select Use the arrow keys to select Key1...

Page 442: ...2 Hot Key Dialog Window Option Entry I Encryption Key 6 J Encryption Key 7 K Encryption Key 8 L Decryption Key 1 Typical for each key entry Enter a 32 character decryption code M Decryption Key 2 N De...

Page 443: ...DU Comms you may use the Telnet CLI ODU Outdoor Unit submenus and pages to control and monitor a CSAT 5060 Outdoor Unit that is connected via FSK to the CDM 625A 2 Comtech EF Data KST 2000A B Transcei...

Page 444: ...on options are as follows Hot Key Dialog Window Option Entry A Traffic IP Address Enter an IP address in the form XXX XXX XXX XXX B Traffic IP Network Prefix Enter a value from 8 to 30 C Redundancy 1...

Page 445: ...This submenu contains the following options Hot Key Information Page Sect A Modem Status 9 3 8 1 B Modem Information 9 3 8 2 C MAC Table 9 3 8 3 D Block Upconverter BUC 9 3 8 4 E Low Noise Block Downc...

Page 446: ...625A Advanced Satellite Modem MN CDM625A Telnet Command Line Interface CLI Operation Revision 4 9 66 9 3 8 1 Home General Information Modem Status Press ESC to return to the General Information subme...

Page 447: ...mation Modem Information Open the Modem Information page from the General Information submenu This page contains the following option Hot Key Dialog Window Option Entry A Circuit ID Enter an identifyi...

Page 448: ...DM 625A Advanced Satellite Modem MN CDM625A Telnet Command Line Interface CLI Operation Revision 4 9 68 9 3 8 3 Home General Information MAC Table Press ESC to return to the General Information submen...

Page 449: ...erface CLI Operation Revision 4 9 69 9 3 8 4 Home General Information Block Upconverter BUC Press ESC to return to the General Information submenu 9 3 8 5 Home General Information Low Noise Block Down...

Page 450: ...Logs Submenu Open the Logs submenu from the Home menu This submenu contains the following options Hot Key Dialog Window Sect A Base Modem 9 3 9 1 B Packet Processor 9 3 9 2 Press a hot key to access...

Page 451: ...All Stored Events Typical for either entry Use the arrow keys to select Cancel or Clear D Clear All Stored Statistics E Alarm Mask Tx AIS Typical for each entry Use the arrow keys to select Active or...

Page 452: ...m the Base Modem page Use the arrow keys to scroll through the available entries The date time and description are provided for each event Events are numbered in the order logged from the time the eve...

Page 453: ...Statistic Table from the Base Modem page Use the arrow keys to scroll through the available entries The date time and description are provided for each statistic Statistics are numbered in the order...

Page 454: ...e Dialog Window Description Option Entry A Stored Event Table See Sect 9 3 9 2 1 B Logging Use the arrow keys to select Enable or Disable C Logging Level Use the arrow keys to select Errors Only Error...

Page 455: ...essor page Use the arrow keys to scroll through the available entries You may also select a header e g Event 1 and press ENTER to select and then view in a standalone window a specific stored event as...

Page 456: ...N WAN Management received transmitted and errored packets statistics 9 3 10 3 D WAN Router Mode Review Router Mode WAN Interface Satellite received transmitted and errored packets and counters statist...

Page 457: ...Hot Key Page Dialog Window Description Option Entry A Rx Statistics See Sect 9 3 10 1 1 B Tx Statistics See Sect 9 3 10 1 2 C Error Statistics See Sect 9 3 10 1 2 D Clear IP Statistics Use the arrow k...

Page 458: ...thernet Rx Open the scrollable Rx statistics page from the nested Ethernet submenu Use the arrow keys to scroll through the available entries You may also select a header e g Port 1 and press ENTER to...

Page 459: ...thernet Tx Open the scrollable Tx statistics page from the nested Ethernet submenu Use the arrow keys to scroll through the available entries You may also select a header e g Port 1 and press ENTER to...

Page 460: ...net Errors Open the scrollable Error statistics page from the nested Ethernet submenu Use the arrow keys to scroll through the available entries You may also select a header e g Port 1 and press ENTER...

Page 461: ...9 81 9 3 10 2 Home Statistics Router Open the Router statistics page from the Statistics submenu Hot Key Dialog Window Option Entry A Router Clear Stats Use the arrow keys to select Cancel or Clear P...

Page 462: ...3 10 3 Home Statistics Managed Switch Open the Managed Switch statistics page from the Statistics submenu Hot Key Dialog Window Option Entry A Router Clear Stats Use the arrow keys to select Cancel or...

Page 463: ...25A Telnet Command Line Interface CLI Operation Revision 4 9 83 9 3 10 4 Home Statistics WAN Router Mode Open the scrollable WAN Router Mode statistics page from the Statistics submenu Otherwise press...

Page 464: ...Statistics WAN Managed Switch Mode Open the scrollable WAN Managed Switch Mode statistics page from the Statistics submenu Hot Key Dialog Window Option Entry A Clear Stats Use the arrow keys to selec...

Page 465: ...ompression statistics page from the Statistics submenu Hot Key Page Dialog Window Option Entry Description A Compression Clear Counters Use the arrow keys to select Cancel or Clear B View Statistics T...

Page 466: ...able View Open the scrollable Compression statistics table from the nested Compression submenu Use the arrow keys to scroll through the available entries You may also select a header e g Route Index 1...

Page 467: ...w Statistics Table See Sect 9 3 10 7 1 Press a hot key to open the dialog window or view the table Otherwise press ESC to return to the Statistics submenu 9 3 10 7 1 Home Statistics QoS Table View Ope...

Page 468: ...vision 4 9 88 9 3 10 8 Home Statistics PTP Open the PTP statistics page from the Statistics submenu Hot Key Page Description A LAN Details See Sect 9 3 10 8 1 B WAN Details See Sect 9 3 10 8 2 Press a...

Page 469: ...n 4 9 89 9 3 10 8 1 Home Statistics PTP LAN Details Open the LAN Details statistics page from the PTP page Otherwise press ESC to return to the PTP page 9 3 10 8 2 Home Statistics PTP WAN Details Open...

Page 470: ...tatistics submenu 9 3 10 10 Home Statistics Clear All Counters Open the Clear All Counters page from the Statistics submenu Hot Key Dialog Window Option Entry A Clear All Counters Use the arrow keys t...

Page 471: ...n LNB Low Noise Block Down Converter For either 70 140 MHz or L Band operation you may fully monitor and control ODU operations in the following ways By using the CDM 625A front panel keypad and VFD T...

Page 472: ...the use of ODU commands and queries issued via serial remote control or with the Telnet Command Line Interface CLI The address of the ODU is set up as follows For Local End ODUs o Use the Modem s RC A...

Page 473: ...scription Function See Chapter Section 1 LED Indicators The LEDs indicate in a summary fashion the status of the modem 6 1 1 2 Keypad The keypad comprises six individual keyswitches The keys have a po...

Page 474: ...10 2 identifies the CDM 625A front panel menu hierarchies allocated to the configuration monitor and control of a Comtech EF Data ODU More specifically menu branches that incorporate ODU operations a...

Page 475: ...ask BUC 10 3 3 1 2 2 CONFIG Mask LNB Test 6 2 2 Use to configure the modem into one of several Test modes and configures monitors the BER Tester Monitor 6 2 3 Use to monitor the current status of the...

Page 476: ...on on the bottom line As you edit the IF frequency the Satellite frequency updates accordingly Satellite frequency LO IF frequency where the sign is determined by the LO mix setting High sided mix inc...

Page 477: ...BUC mask should be configured as Attach to Tx alarm Yes 2 The more common redundancy setup is Two modems in parallel one BUC If a fault occurs on the active modem switchover is desired But if a fault...

Page 478: ...LNB mask should be configured as Attach to Rx alarm Yes 2 The more common redundancy setup is Two modems in parallel one LNB If a fault occurs on the active modem switchover is desired But if a fault...

Page 479: ...one Six alarm types are provided across two screens The last two alarm types on the second screen pertain to ODU operation as shown in the preceding examples Use the arrow keys to navigate between the...

Page 480: ...appearance of and the functional selections available from this nested menu are dependent on the Tx frequency employed 70 140 versus L Band 10 3 3 3 1 ODU BUC PwrSupply Ref Power Supply and Reference...

Page 481: ...use the arrow keys to change that digit The valid LO range is 3000 to 65000 MHz Entering a non zero value for BUC LO causes the Tx IF frequency menu to show LO and Satellite frequencies satellite fre...

Page 482: ...rm Limits Use the arrow keys to select a digit to edit and then use the arrow keys to change that digit Valid range in mA is 000 to 500 Press ENTER when done 10 3 3 3 2 2 ODU LNB PwrSupply Ref LO Freq...

Page 483: ...Address 1 for a Standalone Unit or the Online Unit in a 1 1 Redundancy System o Use the Modem s RC Address 2 for the Offline Unit in a 1 1 Redundancy System For Distant End ODUs in an EDMAC setup Cha...

Page 484: ...s to navigate to the bottom line and then use the arrow keys to select where appropriate CSAT 2CSATs or KST Press ENTER when done Sect 10 3 3 3 3 1 ODU FSK control CSAT Sect 0 ODU FSK control 2CSATs R...

Page 485: ...on submenu branch and its nested menus are defined in this section CSAT X denotes CSAT 1 or CSAT 2 Use the arrow keys to select Configuration Monitor Alarms or Info and then press ENTER 10 3 3 3 3 1 1...

Page 486: ...n 0 to 25 dB in increments of 25dB Mute Mute setting Muted i e Tx off or Unmuted i e Tx on Slope Manual 0 0 to 1 0 in increments of 0 1 or Calibrated Press ENTER when done 10 3 3 3 3 1 1 3 ODU FSK con...

Page 487: ...fault conditions Off CSAT mutes when faulted and remain muted On CSAT mutes when faulted but unmute after the fault goes away Xref External Reference The CSAT automatically locks to an external 5 or 1...

Page 488: ...control CSAT 2CSATs CSAT X Monitor Misc Misc Ref Tune 03 0 VDC LNA 00 05 mA Fan 550 mA ODU FSK control CSAT 2CSATs CSAT X Monitor Power Supplies 24V 24 1 VDC 12V 12 5VDC 5V 5 4VDC 20V 21 2 VDC 10V 10...

Page 489: ...ntries are stored Each entry provides the following information Item Comments Entry type IF Information FT Fault OK Fault cleared Entry number 00 through 99 Date European Day Month Year DD MM YY forma...

Page 490: ...x Attenuation Amplifier state Tx Mute state and Tx Slope adjustment value or CAL ODU FSK control CSAT 2CSATs CSAT X Info Rx Info Rx ON 3400 0MHz 18 00dB Ref 087 Unmuted Slope 0 2 Use this screen to vi...

Page 491: ...Ts CSAT X where CSAT X CSAT 1 CSAT 2 CSAT 5060 050 V1 02 Configuration Monitor Alarms Info Use the arrow keys to select Configuration Monitor Alarms or Info and then press ENTER Sect 10 3 3 3 3 1 ODU...

Page 492: ...control KST KST Select Configuration Information Alarms Use the arrow keys to select Configuration Information or Alarms and then press ENTER 10 3 3 3 3 3 1 ODU FSK control KST Configuration KST Conf...

Page 493: ...ols whether or not a LNA fault is indicated on the Fault status and l activates the Summary Fault Relay Select Summary or No Summary Cal To calibrate select YES and press ENTER Calibration allows the...

Page 494: ...T 2000A 10 3 3 3 3 3 1 8 ODU FSK control KST Information Numbers M C F W 9364 1B VER 01 01 03 assy 9357 1A S N 021476493 Use the arrow keys to view the Up Converter Down Converter and HPA assembly and...

Page 495: ...has identified a BUC connected via the Tx IF port BUC controls via FSK Configuration Status Advanced FSK Use the arrow keys to select Configuration Status or Advanced FSK and then press ENTER 10 3 3...

Page 496: ...function for the following menu structures ODU FSK control Advanced FSK LPOD ODU FSK control Advanced FSK 2LPODs Online LPOD ODU FSK control Advanced FSK 2LPODs Offline LPOD Use the arrow keys to sel...

Page 497: ...f mute LNB or Thru unmute LNB Window LNB Current Window Selecting a value from 20 to 50 defines the allowable LNB Current change before declaring a fault Selecting 99 disables the Current Window funct...

Page 498: ...of 087 This setting is provided to compensate for the long term frequency drift of the oscillator LowFwdPower Threshold This sets the threshold for the low forward power alarm fault An alarm fault is...

Page 499: ...FSK control BUC Advanced FSK LPOD 2LPODs Online Offline LPOD Monitor Power Supplies1 P24V1 024 1 P24V2 024 0 LNVBT 022 1 P13VT 013 7 P10V1 010 3 A10V1 010 0 ODU FSK control BUC Advanced FSK LPOD 2LPO...

Page 500: ...and the Clear All option To clear the Stored Events Log use the arrow keys to select Clear All and then use the arrow keys to select Yes Press ENTER when done On the bottom line To view the Stored Eve...

Page 501: ...interval from 10 through 90 minutes in 10 minute increments Averaging Enabled or Disabled Clear All When prompted select YES Press ENTER when done ODU FSK control BUC Advanced FSK LPOD 2LPODs Online O...

Page 502: ...BUC Advanced FSK LPOD 2LPODs Online Offline LPOD Information Info Model Amp LNB Mask Misc These read only screens provide you with the ODU s current configuration information without risking inadverte...

Page 503: ...OD Information LNB LNB Current Src On SwitchBiasTee Off Window 30 Alarm Disabled This screen displays the LNB Current information ODU FSK control BUC Advanced FSK LPOD 2LPODs Online Offline LPOD Infor...

Page 504: ...o Online State Read only Displays status as Online or Offline Press ENTER when done ODU FSK control BUC Advanced FSK 2LPODs The menus that follow assume that you have selected and the system has ident...

Page 505: ...m the CDM 625A s Web Server Interface This embedded web application is designed for and works best with Microsoft s Internet Explorer Version 7 0 or higher 10 4 1 Web Server Interface and Menu Tree Ty...

Page 506: ...t specific to ODU operation appear dimmed and are explicitly defined in Chapter 7 ETHERNET BASED REMOTE PRODUCT MANAGEMENT Click a navigation tab to continue Pages marked with double asterisks are ope...

Page 507: ...ble 10 MHz Ref Enable and Output Power Enable Use the drop down lists to turn these functions ON or OFF BUC Low and High Current Limit Assign a value in mA ranging from 0 to 4000 Tx LO Low Oscillator...

Page 508: ...ge LNB Control LNB DC Power and LNB Reference Enable Use the drop down lists to turn either function ON or OFF LNB Low and High Current Threshold Assign a value in mA ranging from 0 to 500 for either...

Page 509: ...r of unread stored events in the scrollable events window As you display stored event groups this number decrements accordingly Read Next Five Events Click to buffer the next group of five stored even...

Page 510: ...Click to reset the log s internal pointer Unread Statistics Displays the total number of unread stored statistics in the scrollable statistics window As stored statistics are displayed this number de...

Page 511: ...is otherwise configured for L Band operation and selection of the ODU Config ODU Status and ODU Utilities pages is attempted the following error message displays When you configure the CDM 625A for L...

Page 512: ...Comtech EF Data CSAT 5060 or KST 2000A B as the ODU you may use this page to configure operating settings specific to the active unit Otherwise when you attempt to access this page without first enabl...

Page 513: ...rop down list select Disable or Enable Gain Offset 1 1 Redundancy Only Select the desired setting from the drop down list Amplifier From the drop down list select On or Off Down Converter Parameters F...

Page 514: ...ent Alarm Window Enter a value of 20 50 or 99 to disable this feature Current Source From the drop down list select Disable or Enable Fault Logic From the drop down list select Summary or No Summary O...

Page 515: ...arameters Figure 10 10 ODU Config page KST 2000A B Up Converter Frequency Enter a value in MHz Attenuation Enter a value in dB Output From the drop down list select On or Off Down Converter Frequency...

Page 516: ...n or Off LNA Fault Logic From the drop down list select Summary or No Summary Unit AGC Automatic Gain Control From the drop down list select On or Off Reference Oscillator Adjust Enter a value from 0...

Page 517: ...3 1 ODU Status CSAT 5060 Figure 10 11 shows the ODU Status page as it appears when you configure the Comtech EF Data CSAT 5060 as the ODU Use this page to review read only status reports pertaining t...

Page 518: ...mtech EF Data KST 2000A B as the ODU Figure 10 12 ODU Status page KST 2000A B ODU Type HPA Type The section identifies the installed equipment types The remainder of this page provides configuration a...

Page 519: ...as it appears when you configure the Comtech EF Data CSAT 5060 as the ODU Figure 10 13 ODU Utilities page CSAT 5060 ODU Selection If you use ODUs in redundancy you may toggle this page between the On...

Page 520: ...ds 00 to 59 Click Enter Date Time once you enter the desired date and time in this section ODU Stored Events This section includes a scrollable window which provides a visual record of the ODU stored...

Page 521: ...only ODU Utilities page as it appears when you configure the Comtech EF Data KST 2000A B as the ODU Figure 10 14 ODU Utilities page KST 2000A B ODU Type HPA Type This section identifies the installed...

Page 522: ...nd control of a CSAT 5060 Transceiver ODU installed in standalone or 1 1 Redundancy configurations using a user supplied terminal emulator 1 The CDM 625A Telnet Command Line Interface CLI is accessibl...

Page 523: ...s Hot Key Description Function A Administration Access administrative configuration submenu B Modem Access modem configuration submenu C Network Access network configuration submenu D WAN Access WAN c...

Page 524: ...and monitor the CSAT 5060 Outdoor Unit that is connected via FSK to the CDM 625A Open the Outdoor Unit ODU submenu from the Home menu This submenu contains the following options Hot Key Dialog Window...

Page 525: ...Converter Settings 1 2 Configure a Down Converter 10 5 1 2 1 2 E Down Converter Settings 2 2 F Unit Settings 1 2 Configure an ODU 10 5 1 2 1 3 G Unit Settings 2 2 H LNA Settings Configure a Low Noise...

Page 526: ...ttings 1 2 page contains the following options Hot Key Dialog Window Option Entry A Tx Frequency Enter a value from 5845 000 to 6725 000 MHz B Tx Attenuation Enter a value from 0 00 to 25 00 dB C Tx S...

Page 527: ...AT 5060 submenu The Down Converter Settings 1 2 page contains the following options Hot Key Dialog Window Option Entry A Rx Frequency Enter a value from 3400 000 to 4200 000 MHz B Rx Attenuation Enter...

Page 528: ...ect Unmuted After Freq Change or Muted After Freq Change B Unit Auto Fault Recovery Use the arrow keys to select Disabled or Enabled C Unit Cold Start Use the arrow keys to select Disabled or Enabled...

Page 529: ...page contains the following options Hot Key Dialog Window Option Entry A Unit LNA Current Window Enter a value as follows Range 1 20 to 50 Range 2 99 to 99 B Unit LNA Current Window Use the arrow key...

Page 530: ...from the nested CSAT 5060 submenu This page provides the following information Item Description Online State Identifies the unit as Online or Offline Maintenance Parameters Info needed Unit Faults Lis...

Page 531: ...er entry Use the arrow keys to select No or Yes B Clear Event Log Press a hot key to open a dialog window Stored Events The page additionally provides a listing of the latest five stored events Each e...

Page 532: ...ect Manual or Auto Press a hot key to open a dialog window Otherwise press ESC to return to the nested CSAT 5060 submenu 10 5 1 2 1 8 Home Outdoor Unit ODU CSAT 5060 Utilities Open the Utilities page...

Page 533: ...530 to V 35 DCE conversion Figure A 3 depicts a standard EIA 232 cable for connection between the CDM 625A Rear Panel Remote Control port and any serial port on the User PC 1 The Electronic Industrie...

Page 534: ...ix A Revision 4 A 2 A 1 1 EIA 530 to EIA 422 449 DCE Conversion Cable Use this EIA 530 to EIA 422 449 DCE Conversion Cable for connections between the CDM 625A and the user data Figure A 1 EIA 530 to...

Page 535: ...em MN CDM625A Appendix A Revision 4 A 3 A 1 2 EIA 530 to V 35 DCE Conversion Cable Use this EIA 530 to V 35 DCE Conversion Cable for connections between the CDM 625A and the user data Figure A 2 EIA 5...

Page 536: ...ol Cable for firmware updates in the absence of an Ethernet based connection You may also use this cable for serial based M C of the CDM 625A Connect this cable from the CDM 625A Rear Panel Remote Con...

Page 537: ...a significant development in the area of FEC An option card field upgradeable combines LDPC and TPC together on one module While the performance of LDPC is exceptional in terms of coding gain its high...

Page 538: ...mprovement in error rate but doubles the transmitted data rate and hence doubles the occupied bandwidth of the signal Rate 7 8 coding at the other extreme provides the most modest improvement in perfo...

Page 539: ...itself called the Fano algorithm uses significantly more path memory 4 kbps in this case than the equivalent Viterbi decoder giving rise to increased latency Furthermore a fixed computational clock is...

Page 540: ...a 200 180 code is used in framed EDMAC modes 220 200 means that data is put into blocks of 220 bytes of which 200 bytes are data and 20 bytes are FEC overhead These two codes were chosen because they...

Page 541: ...T Exceptionally good BER performance several orders of magnitude improvement in link BER under given link conditions Very small additional bandwidth expansion Very pronounced threshold effect does not...

Page 542: ...e transponders are no longer power limited but bandwidth limited In order to maximize transponder capacity 8 PSK was looked at as a method of reducing the occupied bandwidth of a carrier and Qualcomm...

Page 543: ...aximum performance to be achieved Unlike the popular method of concatenating an RS codec with a primary FEC codec Turbo Product Coding is an entirely stand alone method It does not require the complex...

Page 544: ...all practical purposes the memory requirement and the decoding latency become infinite For many years there were few advances in the quest to approach the Shannon Limit The Viterbi algorithm heralded...

Page 545: ...re developed an 8 QAM approach that permits acquisition and tracking at much lower values of Eb No than 8 PSK Comtech EF Data s implementation of 8 QAM is the subject of a U S Patent granted in 2007 C...

Page 546: ...000 0 LDPC Rate 1 2 BPSK 18 0 6250 0 Rate 1 2 QPSK OQPSK 18 0 12500 0 Rate 2 3 QPSK OQPSK 24 0 16666 6 Rate 2 3 8 PSK 8 QAM 36 0 25000 0 Rate 3 4 QPSK OQPSK 27 0 18750 0 Rate 3 4 8 PSK 8 QAM 40 5 2500...

Page 547: ...1 75 bps Hz 0 57 x bit rate 678 kHz QPSK OQPSK Rate 0 95 TPC 6 0 dB 6 5 dB 1 90 bps Hz 0 53 x bit rate 626 kHz 8 PSK Rate 2 3 TCM and RS IESS 310 5 6 dB 6 2 dB 1 82 bps Hz 0 56 x bit rate 666 kHz 8 QA...

Page 548: ...O QPSK 234 Rate 2 3 8 PSK 8 QAM 350 Rate 3 4 O QPSK 248 Rate 3 4 8 PSK 8 QAM 16 QAM 395 A larger block is used for the Rate 7 8 code which increases decoding delay Note that in all cases the delay is...

Page 549: ...oach 2 To provide combinations of modulation and coding ModCods that are suitable not only for Constant Coding and Modulation CCM applications but are also the basis for a patent pending Adaptive Codi...

Page 550: ...milliseconds reduction by a factor of 4 The performance of the VersaFEC codes compared with the Shannon bound is shown in Figure B 2 This puts the performance of VersaFEC at or near the DVB S2 perform...

Page 551: ...s Min Data Rate CCM mode Max Data Rate CCM mode 8 QAM 0 576 1 73 4 5 dB 87 32 kbps 11 Mbps 16 QAM 0 644 2 58 6 5 dB 121 47 kbps 11 Mbps B 8 1 2 Ultra Low Latency ULL Codes Four additional ultra short...

Page 552: ...liberately limits throughput to 2 Mbps in CCM Constant Coding and Modulation and 1 Msps in ACM Adaptive Coding and Modulation Above these limits latency is no longer an issue and Long Block is preferr...

Page 553: ...37 12 5 09 8 ARY 0 521 1 564 15360 5 1 246 28 1 19 5 37 12 5 10 8 ARY 0 537 1 612 15840 5 4 254 29 0 20 2 37 12 5 11 8 ARY 0 562 1 686 16560 5 6 265 30 3 21 1 37 12 5 12 8 ARY 0 586 1 759 17280 5 8 27...

Page 554: ...0 37 1 15 8 ARY 0 660 1 979 3240 7 2 57 35 6 2 0 37 1 16 8 ARY 0 684 2 052 3360 7 5 59 36 9 2 0 37 1 17 8 ARY 0 708 2 125 3480 7 8 61 38 3 2 0 37 1 18 8 ARY 0 733 2 199 3600 8 3 63 39 6 2 0 37 1 19 1...

Page 555: ...ersaFEC ACM mode Table B 12 summarizes both VersaFEC 2 Long and Short Block modes Table B 12 VersaFEC 2 End to End Latency 100 ksps VersaFEC 2 Mode Min Throughput 100 ksps Max Throughput 100 ksps End...

Page 556: ...ck up in any of K phase states where K 2 for BPSK K 4 for QPSK Without the ability to resolve these ambiguous states there would be a 1 in 2 chance that the data at the output of the demodulator would...

Page 557: ...you use data at a certain symbol rate to modulate the carrier the demodulator can lock at incorrect frequencies spaced at intervals of one quarter of the symbol rate away from the carrier Fortunately...

Page 558: ...i Decoding 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification limit Rate 1 2 Coding Uncoded BPSK QPSK Typical Performance Specification limit Rate 3 4 Co...

Page 559: ...11 12 Eb No in dB Specification Limit Rate 1 2 and 220 200 Outer Code Uncoded BPSK QPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Viterbi with concatenated RS 220 200 Outer Code Combined sync threshold demod and...

Page 560: ...S 219 201 Outer Code 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification limit Rate 2 3 Coding and 219 201 RS Outer Code Uncoded BPSK QPSK Typical Perform...

Page 561: ...1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification limit Rate 3 4 Viterbi and 220 200 RS Outer Code Uncoded BPSK QPSK Typical Performance Specification limit...

Page 562: ...E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification limit Rate 1 2 Coding BPSK QPSK OQPSK Uncoded BPSK QPSK Typical Performance Specification limit Rate 3 4 Cod...

Page 563: ...1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification limit Rate 1 2 Coding QPSK OQPSK Uncoded BPSK QPSK Typical Performance Specification limit Rate 3 4 Coding...

Page 564: ...1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Specification Limit Rate 1 2 and 220 200 Outer Code BPSK QPSK OQPSK Uncoded BPSK QPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Sequential with concaten...

Page 565: ...9 Figure B 11 Turbo Product Code Rate 5 16 BPSK 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Turbo Product Codec Rate 5 16 BPSK 1 2 3 4...

Page 566: ...4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Turbo Product Codec Rate 21 44 BPSK QPSK OQPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Spec limit Rate 21 44 B Q OQPSK Typical...

Page 567: ...M 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Turbo Product Codec Rate 3 4 QPSK OQPSK 8 PSK 8 QAM and 16 QAM 1 2 3 4 5 6 7 8 9 10 11 1...

Page 568: ...M 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Turbo Product Codec Rate 7 8 QPSK OQPSK 8 PSK 8 QAM and 16 QAM 1 2 3 4 5 6 7 8 9 10 11 1...

Page 569: ...OQPSK and 8 PSK Q QAM 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Turbo Product Codec Rate 0 95 QPSK OQPSK and 8 PSK 8 QAM 1 2 3 4 5 6...

Page 570: ...E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech LDPC Codec Rate 1 2 BPSK QPSK OQPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Spec limit Rate 1 2 B Q...

Page 571: ...and 8 PSK 8 QAM 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech LDPC Rate 2 3 QPSK OQPSK and 8 PSK 8 QAM 1 2 3 4 5 6 7 8 9 10 11 12 BER Sp...

Page 572: ...M and 16 QAM 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech LDPC Rate 3 4 QPSK OQPSK 8 PSK 8 QAM and 16 QAM 1 2 3 4 5 6 7 8 9 10 11 12 BE...

Page 573: ...EC Codec Rate 0 488 BPSK 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech VersaFEC Codec Rate 0 488 BPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Rat...

Page 574: ...1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech VersaFEC Codec Rate 0 533 0 631 0 706 and 0 803 QPSK 1 2 3 4 5 6 7 8 9 10 11 12 BER Rate 0...

Page 575: ...M 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech VersaFEC Codec Rate 0 642 0 711 0 780 8 QAM 1 2 3 4 5 6 7 8 9 10 11 12 BER Rate 0 711 8...

Page 576: ...E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Rate 0 780 16 QAM Uncoded BPSK QPSK Typical Performance shown guaranteed performance curves are 0 3dB to the right Rate 0 731 1...

Page 577: ...0 644 16 QAM 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech VersaFEC Codec Extended CCM 0 576 8 QAM and 0 644 16 QAM 1 2 3 4 5 6 7 8 9 10...

Page 578: ...1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Comtech Ultra Low Latency ULL Codec Rate 0 493 BPSK QPSK 0 654 and 0 734 QPSK 1 2 3 4 5 6 7 8 9 1...

Page 579: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix B Revision 4 B 43 Figure B 25 VersaFEC 2 Short Block...

Page 580: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix B Revision 4 B 44 Figure B 26 VersaFEC 2 Short Block...

Page 581: ...ix B Revision 4 B 45 Figure B 27 Differential Encoding No FEC No Scrambling 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 1 2 3 4 5 6 7 8 9 10 11 12 Eb No in dB Uncoded BPSK QPSK Differential Encoding...

Page 582: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix B Revision 4 B 46 Notes...

Page 583: ...MAC 3 D I ESC Framed QDI If IP ACM mode is selected no additional framing is required The remote modem constantly sends back information about the demodulator Eb No using reserved bytes in the overhea...

Page 584: ...1 Target Eb No This is value of Eb No that you need to keep constant at the remote modem The minimum value to enter is 0 0 dB If the Eb No falls below this value the AUPC control will increase the Tx...

Page 585: ...ny closed loop control system you must choose loop parameters that ensure stability at all times Several features ensure that the AUPC system does overshoot or oscillate First corrections for which th...

Page 586: ...tor AUPC or via the remote control interface The resolution of the reading is 0 2 dB For all values greater than or equal to 16 dB a value of 16 0 dB will be displayed As long as framing is enabled th...

Page 587: ...MetaCarrier The DVB CID MetaCarrier concept employs a low speed data sequence containing identifying information about a host carrier that is spread using Direct Sequence Spread Spectrum DSSS and the...

Page 588: ...nd then by adding the spread spectrum CID at a highly reduced power spectral density compared with that of the host carrier The size of the MetaCarrier is determined based purely on symbol rate and is...

Page 589: ...formation Base MIB File Browser USE OF THE SERIAL BASED REMOTE CONTROL INTERFACE THE TELNET BASED REMOTE CONTROL INTERFACE AND THE ETHERNET BASED SNMP INTERFACE ARE RECOMMENDED ONLY FOR ADVANCED USERS...

Page 590: ...keys then press ENTER CarrierID Longitude 1110 56 28 W Edit the longitude in the form shown degrees and decimal minutes East or West of the location where the CDM 625A is located using the arrow keys...

Page 591: ...are five transmit clocking modes in the CDM 625A EIA 422 449 signal mnemonics will be used for illustration but the description applies equally to V 35 HSSI and LVDS Figure E 1 provides a graphic depi...

Page 592: ...present but uses ST if it is not If the demodulator loses lock the modem s internal clock will be substituted so an accurate and stable clock is present on ST rather than a clock that may jitter and...

Page 593: ...Modem MN CDM625A Appendix E Revision 4 E 3 No framing EDMAC etc may be used No RS coding may be used RS 422 V 35 HSSI and LVDS are the only interfaces supported and used on the Type D 25 pin connecto...

Page 594: ...ll a minimum buffer in use to de jitter the effects of removing overhead framing G 703 Applicable E 3 2 Buffer Enabled TX RX TX Terrestrial or Int SCT Clock In this instance it is required that buffer...

Page 595: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix E Revision 4 E 5 Figure E 2 RX Clock Modes...

Page 596: ...or Int These settings instead force RT to be a copy of ST In either case it is SD that has an uncertain phase relationship to the clock due to round trip delays so the modem s TX clock invert feature...

Page 597: ...12 13 14 15 16 17 18 19 20 21 22 23 24 E1 CCS Common Channel Signalling 2048 kbps E1 Frame Maximum channels to drop 30 1920 kbps n x 64 kbps n 1 2 3 4 5 6 8 10 12 15 16 20 24 30 Time Slot No Time Slo...

Page 598: ...d For T1 you can select any timeslot TS from 1 to 24 You may also select N A to leave a satellite channel unused The configuration menu allows timeslots to be selected for transmission or reception up...

Page 599: ...to choose between fully independent operation of the incoming and outgoing E1 T1 signal or to use the same T1 E1 signal for both Dropping and Inserting looped mode If Loop has been selected under the...

Page 600: ...er Clock RX Satellite will be chosen as a fall back If Insert is not the selected buffer clock reference the clock and data from the IDI port is ignored and a new E1 T1 frame is generated The timeslot...

Page 601: ...that follow illustrate three possible G 703 clock extension modes Details of how to set up the modems for these various operating modes are given in Chapter 6 FRONT PANEL OPERATION E 11 1 Clock Exten...

Page 602: ...pment connected to the modem The form of this is an all ones signal which provides the maximum transition density in the AMI signal Note This scheme is sufficiently flexible to permit an E1 signal to...

Page 603: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix E Revision 4 E 13 Figure E 7 G 703 Clock Extension Mode 1 CDM 625A CDM 625A...

Page 604: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix E Revision 4 E 14 Figure E 8 G 703 Clock Extension Mode 2 CDM 625A CDM 625A...

Page 605: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix E Revision 4 E 15 Figure E 9 G 703 Clock Extension Mode 3 CDM 625A CDM 625A...

Page 606: ...incoming E1 to that port must have TS0 framing so that the selected timeslots to be dropped can be identified Recent improvements to Quad E1 operation allow the combining of asynchronous E1 streams B...

Page 607: ...satellite circuit once the satellite and earth station parameters are fixed involves trade off between modulation and coding A lower order modulation requires less transponder power while using more b...

Page 608: ...es A combination of any of the above to meet different objectives Summary When carriers share common bandwidth up to 50 savings in transponder utilization is possible F 1 2 Application Requirements Th...

Page 609: ...re satellite Doppler shift up and down converter frequency uncertainties and other drift associated with the electronics in the CDM 625A itself CnC tracks and compensates for this frequency offset and...

Page 610: ...ootprint so each sees both carriers CnC carriers are operated in pairs One outbound with multiple return carriers is not allowed Asymmetric data rates are allowed no restrictions The ratio of power sp...

Page 611: ...e same band to the CDM 625A which then translates the signal to near baseband where it can be filtered decimated and then processed as a complex envelope signal The CDM 625A then suppresses the versio...

Page 612: ...is is that the waveform must be sufficiently random Because acquiring the delay and frequency offset of the interfering carrier is fundamentally a correlation operation anything deterministic in the i...

Page 613: ...in Carrier allows equivalent spectral efficiency using a lower order modulation and or FEC Code Rate CAPEX is therefore reduced by allowing the use of a smaller BUC HPA and or antenna And as DoubleTal...

Page 614: ...ncy and delay offsets Figure F 5 DoubleTalk Carrier in Carrier Signals Referring to Figure F 6 For round trip delay estimation a search algorithm is utilized that correlates the received satellite sig...

Page 615: ...c Adjacent Carriers 1 3 spacing BPSK 0 3 dB QPSK OQPSK 0 3 dB 8 PSK 0 5 dB 8 QAM 0 4 dB 16 QAM 0 6 dB F 2 3 Carrier in Carrier Latency Carrier in Carrier has no measurable impact on circuit latency F...

Page 616: ...512 kbps The traditional link was based on QPSK TPC 3 4 and required 0 96 MHz of leased BW The LST2 summary for the traditional link is as follows Carrier in Carrier link design involved trying differ...

Page 617: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix F Revision 4 F 11 Link parameters and LST summary for QPSK LDPC 2 3 with Carrier in Carrier is as follows...

Page 618: ...th of a Carrier in Carrier circuit is dictated by the larger of the two carriers it is strongly recommended that the smaller carrier be spread as much as possible using a lower order modulation and or...

Page 619: ...PA 8 3 W 30 increase in Remote power F 2 5 3 Power Limited Links Carrier in Carrier can provide substantial savings even when the original link is power limited Spreading the carrier by using a lower...

Page 620: ...is as follows Item Original Link With Carrier in Carrier and VersaFEC Savings Hub to Remote Remote to Hub Total Hub to Remote Remote to Hub Total Data Rate kbps 2048 2048 2048 2048 Modulation 8 PSK 8...

Page 621: ...cord Receive Signal Level RSL at Site B 2 Turn OFF the carrier at Site A Turn ON the carrier at Site B CnC function is OFF at both sites Using a spectrum analyzer measure Co No No at the input to the...

Page 622: ...No Carrier in Carrier should be OFF Record the Eb No as displayed by the Modems Observe the 2 carriers on a spectrum analyzer and record the PSD ratio Example Link o Full duplex 512 kbps QPSK LDPC 2 3...

Page 623: ...margin 2 Verify that the PDS ration is within spec for the CDM 625A 3 Calculate the Allocated Bandwidth BW and Power Equivalent Bandwidth PEB for the duplex link BWDuplex Link Greater of BWCarrier 1 B...

Page 624: ...ate Use Downlink EIRP and Symbol Rate to estimate the PSD Ratio from a link budget PSD Downlink EIRP 10 Log Symbol Rate PSD Ratio Example Carrier Downlink EIRP Symbol Rate Power Spectral Density A to...

Page 625: ...m Analyzer capable of integrating the signal power in a given bandwidth to estimate PSD Ratio or CnC Ratio CnC Ratio in dB PowerC1 in dBm PowerC2 in dBm PSD Ratio in dB PowerC1 10 log BWC1 in Hz Power...

Page 626: ...cause many carriers to simultaneously increase power beyond their authorized maximums leading to intermod problems adjacent channel interference ACI issues and in some extreme cases saturation of the...

Page 627: ...but those of the modem at the other end of the link After these calculations are performed a comparison of the results is performed and if they are in close agreement the power changes are implemented...

Page 628: ...cern You should only attempt to do a re balance if it is known with certainty that there are CLEAR SKY conditions at BOTH SIDES OF THE LINK It is not necessary that there be a person at each end the r...

Page 629: ...provide a two way communications link between the two ends CnC APC requires an overhead channel very much like EDMAC or one of its variants which is used in AUPC Recognizing that this overhead needs t...

Page 630: ...ible for a modem in this CnC mode to lock to itself With this approach there is no master slave relationship both sides are peers and either side can be designated as A or B F 4 5 CnC APC Response Tim...

Page 631: ...e B X Band APC Side B Ku Band APC Side B Ka Band If it is not known which satellite band is being used no attempt should be made to engage CnC APC Once the mode has been selected press ENTER do not se...

Page 632: ...ance limited by local power approaching TPLImax OK P DistPwr Min Partial re balance limited by distant power approaching its lower limit OK P DistPwr Max Partial re balance limited by distant power ap...

Page 633: ...link conditions before re attempting to activate it CAUTION IMPORTANT NOTE When CnC APC is active you are not permitted to change configuration parameters that potentially affect the operation of CnC...

Page 634: ...ute power ratio CnC Ratio 7dB 10 log Outbound desired symbol rate 10 dB Maximum Symbol Rate Ratio 3 1 TX RX or RX TX Inbound Outbound frequency uncertainty Within the normal acquisition range of the d...

Page 635: ...space required by a carrier on a transponder For example A Duplex 10 Mbps Circuit with 8PSK Modulation FEC Rate 3 4 and 1 4 Spacing requires Allocated BW DR SE CSF Data Rate Spectral Efficiency Carri...

Page 636: ...nd received by the local demodulator At the station transmitting C1 CnC Ratio in dB PowerC1 in dBm PowerC2 in dBm Eb No Ratio of Energy per bit Eb to Noise density No unit in dB Eb No C No 10log DR wh...

Page 637: ...D is the signal power per unit bandwidth dBW Hz or dBm Hz For example Signal power 20 dBm Signal bandwidth 5 MHz PSD 20 10 log 5 000 000 46 99 dBm Hz PSD Ratio Ratio of Power Spectral Density PSD of t...

Page 638: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix F Revision 4 F 32 Notes...

Page 639: ...1 or 2 dB division Set the Resolution Bandwidth of the Spectrum Analyzer to 20 of the symbol rate Use video filtering and or video averaging to reduce the variance in the displayed trace to a low enou...

Page 640: ...as follows Eb N0 10log10 10 Co No No 10 1 10log10 FEC Code Rate 10log10 bits symbol Where Eb N0 and Co No No are expressed in dB bits symbol 1 for BPSK bits symbol 2 for QPSK bits symbol 3 for 8 PSK...

Page 641: ...6 7 6 4 5 8 12 0 11 7 14 7 14 9 16 7 8 7 11 7 9 9 9 3 8 9 8 7 8 2 7 5 7 2 6 9 6 3 12 5 12 2 15 2 15 4 17 3 9 2 12 2 10 4 9 8 9 4 9 2 8 7 8 0 7 7 7 4 6 8 13 0 12 8 15 8 16 0 17 8 9 8 12 8 11 0 10 4 10...

Page 642: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix G Revision 4 G 4 Notes...

Page 643: ...s and data rates At the start of each frame a 12 bit synchronization word is added This allows the demodulator to find and lock to the start of frame At regular intervals throughout the frame addition...

Page 644: ...on of EDMAC is available with D I framing With this each frame contains 2944 bits with 64 overhead bits and 2880 user data bits The portion of the overhead used for the EDMAC link performs identically...

Page 645: ...lete packet and transmits the response back to the M C User PC Apart from the round trip satellite delay the M C User PC does not see any difference between local and distant end units it sends out a...

Page 646: ...e bus address for the distant end This should normally be set to the base 10 address 1 For example if the MASTER unit is set to 30 choose 31 for the distant end unit On the distant end unit enable fra...

Page 647: ...s odd parity and two stop bits The 9 pin ESC port is used for this data channel see Sect 3 2 2 5 ESC DB 9F in Chapter 3 REAR PANEL CONNECTORS AND PINOUTS for more information Because 38400 baud is the...

Page 648: ...ESC menu select the baud rate and asynchronous character format J 5 Effect on Eb No Performance Because the increase in transmitted data rate will cause a decrease in the Eb No performance particularl...

Page 649: ...This appendix explains the CDM 625A s Ethernet interface and illustrates the functional differences between the available operating modes Additional modes of operation are also explained K 2 CDM 625A...

Page 650: ...l Ethernet Switch M C traffic is available via all LAN interfaces as well as via the over the air WAN interface K 2 3 Ethernet Networking Loops Figure K 2 Improper Use of External Ethernet Switch with...

Page 651: ...two or more hub sites where there are multi paths between each site care must be taken to ensure that no Ethernet Networking Loops occur Figure K 4 shows two hub sites connected with two or more modem...

Page 652: ...raffic Using Routers Figure K 5 shows two hub sites connected with standard Ethernet traffic using routers instead of switches for the Ethernet connection The routers will block the broadcasts coming...

Page 653: ...h Standard Traffic Using Routers or Switches Figure K 6 shows a hub to remotes configuration using switches or routers with standard Ethernet traffic the routers switches will block broadcasts coming...

Page 654: ...ps Figure K 7 shows Point to Multipoint configuration using the optional IP Packet Processor When a CDM 625A s working mode is configured as Router Multipoint Hub the modem is allowed to egress on the...

Page 655: ...e K 8 shows hub to remotes configuration using routers with standard and split path Ethernet traffic A Static ARP Entry is needed in the switch so that routing of the Tx side of the modems will be on...

Page 656: ...t to Multipoint Using Switches With switches used the hub and remote are on the same subnet as shown in Figure K 9 meaning that broadcasts will be allowed to transverse the network Learning Mode must...

Page 657: ...Point to Multipoint Router Multipoint Hub Mode Figure K 10 depicts a Point to Multipoint Router Multipoint Hub setup with the optional IP Packet Processor installed and enabled in the CDM 625A and co...

Page 658: ...to select the mode as Router Multipoint Hub and then click Submit to accept this configuration change o Referring to Sect 7 5 4 3 3 1 Configuration Routing Routes in Chapter 7 ETHERNET BASED PRODUCT...

Page 659: ...hematic for a Multicast Routing Network As shown there are two key components to this configuration the LAN Downstream Interface and the WAN Upstream Interface Note the following LAN Downstream Interf...

Page 660: ...hapter 7 ETHERNET BASED PRODUCT MANAGEMENT Add a multicast route using the page s Add New Route section making sure to select toWAN from the Interf drop down menu this defines the route as LAN WAN Cli...

Page 661: ...de or Managed Switch Mode with IP Packet Processor When the optional IP Packet Processor is installed and enabled The CDM 625A uses Comtech EF Data s patented Streamline Encapsulation SLE Framing inst...

Page 662: ...vided off the shelf Ethernet switch 1 N Redundancy is supported using a CRS 300 1 10 Redundancy Switch or a CRS 500 M N Redundancy System in 1 N mode in a wired thru or wired around configuration and...

Page 663: ...on time synchronization with a time server When the modem synchronizes its time it also synchronizes the time of all connected EDMAC devices such as slave LPODs or CSATs When all devices are synchroni...

Page 664: ...nchronization in nanosecond range due to the presence in the network of variable delay components such as QoS Quality of Service buffer Rx Tx FIFOs Satellite Doppler etc The CDM 625A bridges PTP from...

Page 665: ...ond segment is from the CDM 625A A near end modem WAN port to the CDM 625A B distant end modem WAN port in which the near end modem WAN port is the master and the distant end modem WAN port is the sla...

Page 666: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix K Revision 4 K 18 Notes...

Page 667: ...ket Processor is available as a factory installed option or depending on its originally shipped configuration as a field upgradeable option Use of the IP Packet Processor with the CDM 625A Advanced Sa...

Page 668: ...ologies Router Point to Point Router Hub Router Remote Managed Switch L 2 3 Adaptive Coding and Modulation ACM Appendix M ADAPTIVE CODING AND MODULATION ACM Comtech EF Data s VersaFEC Adaptive Coding...

Page 669: ...tact Comtech EF Data Product Support to acquire the following available FAST options Quality of Service QoS AES Encryption Header Compression o Up to 5 Mbps CCM 1200 ksps ACM o Up to 10 Mbps CCM 4100...

Page 670: ...e WAN and decrypt any encrypted traffic it receives L 2 5 3 Header Compression The IP Packet Processor incorporates industry leading header compression for IP traffic Header compression can reduce the...

Page 671: ...anagement Protocol SNMP This requires a user supplied Network Management System NMS and a user supplied Management Information Base MIB File Browser Telnet Interface This requires use of a user suppli...

Page 672: ...optional IP Packet Processor is installed and enabled Figure L 1 the Telnet Command Line Interface CLI Figure L 1 CDM 625A Telnet Interfaces Interfaces Serial Remote CLI L 3 2 3 HTTP Web Server Inter...

Page 673: ...Subnets 950 Internet Standard Subnetting Procedure 951 Bootstrap Protocol BOOTP 959 File Transfer Protocol 1071 Computing the Internet Checksum 1112 Host Extensions for IP Multicasting 1350 The TFTP...

Page 674: ...he requirements and limitations of using the IP Packet Processor with the CDM 625A L 5 2 Requirements for Field Upgrade CDM 625A Advanced Satellite Modem with 175W AC or 125W DC Power Supply Medium Ph...

Page 675: ...5A and disconnect the modem s power cord from its power source Next use the screwdriver to remove the top cover mounting hardware Remove the cover from the CDM 625A chassis IMPORTANT Be sure to retain...

Page 676: ...f the fan into the chassis A Plug in of both the fan power cable B and IP Packet Processor Card C into the modem s framing board Assembly of the IP Packet Processor Card onto the chassis mounted card...

Page 677: ...with the provided mounting hardware 4X CEFD P N HW 4 40X3 4PH 4 40 x 3 4 pan head screws and 4X CEFD P N HW 440HXNUTLOC 4 40 locking hex nuts at the designated location IMPORTANT NOTE Refer to the arr...

Page 678: ...ing connector to the PL 0000481 IP Packet Processor Card 6 Prepare the IP Packet Processor Card for installation by aligning its receptacle with the mating connector on the modem s framing board Plug...

Page 679: ...sion 4 L 13 Step Task 7 Use the screwdriver to secure the IP Packet Processor card to the chassis with its provided mounting hardware 2X 4 40 x 1 4 pan head screws 8 Plug the front panel ribbon cable...

Page 680: ...ep Task 9 Use the screwdriver to reinstall the top cover onto the CDM 625A chassis with its existing mounting hardware Plug the modem s power cord back into its power source The CDM 625A IP Packet Pro...

Page 681: ...he appropriate FAST codes ACM turns fade margin into increased link capacity gains of 100 or more are possible compared to traditional Constant Coding and Modulation CCM This is accomplished by automa...

Page 682: ...4 QPSK where modulation order 2 Symbol rate bit rate 0 666 Re arranging Bit rate symbol rate modulation order code rate So in changing to a higher modulation order or code rate the bit rate is increas...

Page 683: ...t the start of each code block to signal the demodulator decoder how to configure for the correct modulation type and FEC code rate 2 A receiver that is capable of demodulating and decoding the signal...

Page 684: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix M Revision 4 M 4 Figure M 1 ACM over Satellite Generic Example...

Page 685: ...ptimizing satellite transponder capacity M 5 Disadvantages of DVB S2 While the scheme defined by DVB S2 is very effective for many broadcast and higher data rate applications it is by no means a one s...

Page 686: ...n of the encoder to further reduce latency to the minimum possible A constant number of symbols per block to reduce the demodulator and decoder complexity and significantly also reduces latency in the...

Page 687: ...12 Mbps 8 QAM 0 642 1 93 6 1k 4 6 dB 89 35 kbps 12 Mbps 8 QAM 0 711 2 13 6 1k 5 2 dB 93 39 kbps 12 Mbps 8 QAM 0 780 2 34 6 1k 5 6 dB 97 43 kbps 12 Mbps 16 QAM 0 731 2 93 8 2k 6 3 dB 125 53 kbps 12 Mb...

Page 688: ...0 49 49 kbps 34 01 QPSK 0 533 1 07 107 kbps 32 02 QPSK 0 631 1 26 126 kbps 30 03 QPSK 0 706 1 41 141 kbps 28 04 QPSK 0 803 1 61 161 kbps 26 05 8 QAM 0 642 1 93 193 kbps 30 06 8 QAM 0 711 2 13 213 kbp...

Page 689: ...d There are three options 37 ksps to 300 ksps 37 ksps to 1200 ksps 37 ksps to 4100 ksps 3 SELECT CONFIG TX POWER If Manual mode is selected enter the desired transmit output level This will also be th...

Page 690: ...nstalled For example suppose the 4100 ksps FAST option is installed and the symbol rate set to 4100 ksps the theoretical maximum data rate would be 14 Mbps at ModCod 11 However is CnC is being used wi...

Page 691: ...ink quality and to maintain demod lock during the interval between the Eb No degrading and the ACM controller responding by lowering the ModCod See Section M 11 Notes and Recommendations To continue w...

Page 692: ...d Modulation Above these limits latency is no longer an issue and Long Block is preferred Spectral efficiency up to 4 15 bps Hz for Short Block VersaFEC 2 CCM and point to point ACM are supported in b...

Page 693: ...7 1 612 15840 5 4 254 29 0 20 2 37 12 5 11 8 ARY 0 562 1 686 16560 5 6 265 30 3 21 1 37 12 5 12 8 ARY 0 586 1 759 17280 5 8 276 31 7 22 0 37 12 5 13 8 ARY 0 611 1 832 18000 6 0 287 33 0 22 9 37 12 5 1...

Page 694: ...3 2 0 37 1 15 8 ARY 0 660 1 979 3240 7 2 57 35 6 2 0 37 1 16 8 ARY 0 684 2 052 3360 7 5 59 36 9 2 0 37 1 17 8 ARY 0 708 2 125 3480 7 8 61 38 3 2 0 37 1 18 8 ARY 0 733 2 199 3600 8 3 63 39 6 2 0 37 1...

Page 695: ...sis for VersaFEC 2 is proceeds identically The following table shows a summary for both VersaFEC 2 Long and Short Block modes Min Throughput 100 ksps Max Throughput 100 ksps End to end Latency VersaFE...

Page 696: ...s 00131 657ksps TxSymbolRate 01000 000 ksps ACM Mode Data Invert Off Clock Invert Off The Transmit symbol rate is limited by the FAST code installed There are five options 37 ksps to 1200 ksps 37 ksps...

Page 697: ...cod 00 B 0 489 0 489 bps Hz Max Modcod 37 32 ARY 0 879 4 397 bps Hz In VersaFEC 2 the Minimum ModCod is fixed at 0 and the user cannot change it CAUTION The value of Max ModCod may be limited by other...

Page 698: ...illoscope in X Y mode the Alarms connector provides analog voltages to monitor the constellation This has the advantage that it will show a change in modulation type instantaneously unlike the Constel...

Page 699: ...peration in resumed by sending a Pause Frame with Pause time set to 0x0000 This mechanism has been shown to be very effective at mitigating packet loss when the ACM controller reduces bandwidth M 10 U...

Page 700: ...ctly from ModCod11 to ModCod0 VersaFEC example This gives the fastest possible response and helps keep the link intact under fast fading events While ACM can do remarkable things the fundamentals stil...

Page 701: ...ve minimum latency set the WAN buffer to the smallest practical value This will depend on how well the connected equipment implements rate limiting and the variation in IP packet size The default sett...

Page 702: ...Cod11 Remote Demod Unlock Action Maintain current ModCod Go to minimum ModCod Target SNR margin 0 to 4 5 dB 0 5 dB steps System latency 34 milliseconds max not including WAN buffer or satellite path M...

Page 703: ...8 margin set to 0 dB Switch point hysteresis 0 3 dB Max fading rate Approximately 1 dB second higher if Target Eb No margin 1 dB Max ModCod update rate 1 update every 1 7 seconds Configurable paramete...

Page 704: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix M Revision 4 M 24 Notes...

Page 705: ...Upgrade CDM 625A Advanced Satellite Modem with 175W AC or 125W DC Power Supply Medium Phillips screwdriver Needle nose pliers CEFD P N KT 0020932 VersaFEC 2 Option Card with Fan Upgrade Kit containin...

Page 706: ...refully and note this exception to the procedure when performing your upgrades Step Task 1 Turn off the CDM 625A and disconnect the modem s power cord from its power source Next use the screwdriver to...

Page 707: ...Assembly of the VersaFEC 2 Option Card onto the CDM 625A s modem board D Assembly of the Air Baffle to the chassis floor 3 If the optional IP Packet Processor Kit CEFD P N KT 0000176 has already been...

Page 708: ...s at the designated location IMPORTANT Refer to the arrow icons imprinted on the fan housing when installing the fan to ensure that The air flow is directed into the chassis during operation and The f...

Page 709: ...d into operating position once the spring loaded capture tabs located at either side of the card snap into place C Use the screwdriver to secure the provided card mounting screw CEFD P N HW SEM4 40X1...

Page 710: ...s the front panel control ribbon is not shown for clarity C Lift up the front edge of the IP Packet Processor card slightly up and away from its mounting bosses Take care not to damage the card or loo...

Page 711: ...Plug the modem s power cord back into its power source 10 The CDM 625A VersaFEC 2 Option Card upgrade is now complete You may turn on and resume use of the modem Before continuing it is important tha...

Page 712: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix M Revision 4 M 32 Notes...

Page 713: ...one eighth the primary or 8 times the primary 1 7 or 7 IP traffic is one seventh the primary or 7 times the primary 1 6 or 6 IP traffic is one sixth the primary or 6 times the primary 1 5 or 5 IP tra...

Page 714: ...imary data due to framing are not shown but are reflected in the displayed symbol rates Once Sub Mux is enabled the data rate display is replaced with the composite rate This is the sum of the primary...

Page 715: ...annels 64 kbps only full duplex Engineering Service Channel Earth Station to Earth Station Channel EIA 232 data synchronous at 1 480 of the primary data EIA 232 data asynchronous at 1 2000 of the prim...

Page 716: ...tes and provides the rate exchanged transmit clock to the modulator portion of the base modem P 2 3 IBS Engineering Service Channel The IBS Engineering Service Channel provides bi directional processi...

Page 717: ...es 1 to 30 E1 CAS and E1 CCS Arbitrary order non contiguous available Plesiochronous Buffer Sizes Selectable size of 64 to 262 144 bits in 16 bit steps with added limitations for G 704 frame boundarie...

Page 718: ...tures but with the following changes It accepts and outputs primary data through the G 703 connectors The data rate must be at T1 or E1 rates only This includes additional links for Drop Data Out and...

Page 719: ...to 8 dB 2 dB steps Audio Output Level Adjustment range 6 to 8 dB 2 dB steps Audio Filtering Internal 300 to 3400 Hz input and output ESC Data Interface Type EIA 422 ESC Data Rate 8 kbps also 64 kbps...

Page 720: ...corresponding demultiplexing of Rx satellite data received from the demodulator portion of the modem Resulting G 703 data is optionally encoded AMI B8ZS or HDB3 before being output P 4 2 IDR Engineer...

Page 721: ...cause degradation of the BER performance of the corresponding demodulator To overcome the problem of the envelope collapsing to a point of zero amplitude Offset QPSK places a delay between in phase I...

Page 722: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix Q Revision 4 Q 2 Notes...

Page 723: ...n OSI model Layer 2 header parameters such as IEEE 802 1q VLAN priority field and is also based on the CDM 625A s physical Ethernet port Layer 3 QoS requires the optional IP Packet Processor card to b...

Page 724: ...queues may starve low priority queues Three modes of Layer 2 QoS are available Port based VLAN based or Port and VLAN based R 2 1 Modem Tx Data Rate vs QoS Tx Data Rate Modem Tx data rate can be set i...

Page 725: ...ed Layer 2 QoS When selecting Port based Layer 2 QoS each port s priority is configurable to a QoS queue priority of 1 lowest to 4 highest In this mode irrespective of traffic type all traffic ingress...

Page 726: ...o Port 4 priority is set to 4 The modem data rate is set to 2500 Kbps The ingress traffic on Ports 1 and 2 are set to 2 Mbps The ingress traffic on Port 3 is set to 800 Kbps The ingress traffic on Por...

Page 727: ...1q protocol supports eight priorities from 0 to 7 However because Layer 2 QoS has only four priorities as mentioned previously as shown in Table R 2 these eight VLAN priorities are automatically mappe...

Page 728: ...Mbps the QoS output bandwidth is set to 1 Mbps Total Input data rate is 4X 500 Kbps 2 Mbps Based on Table R 2 the VLAN Priorities 7 5 3 and 1 are mapped respectively to L2 QoS Priorities 4 3 2 and 1...

Page 729: ...h is set to 4 Mbps Since the modem Tx bandwidth and QoS output data rates are the same there is no need for normalization Based on Table R 2 the VLAN Priorities 7 and 1 are mapped respectively to L2 Q...

Page 730: ...and drains before a Priority 2 queue similarly Priority 2 packets will schedule and drain before Priority 3 packets etc Layer 3 QoS systems incorporates WRED Weighted Random Early Detection based con...

Page 731: ...s are as follows Stream Protocol VLAN Range TOS Src IP Dest IP Src Port Dest Port Steam Data Rate 1 UDP 0 4094 255 1024 2 TCP 0 4094 255 1024 3 HTTP 0 4094 255 1024 4 IP 0 4094 255 64 QUESTION What ar...

Page 732: ...lected 2 Modem Tx bandwidth is set to 20 Mbps 3 The Min Max QoS rules are configured as follows Index Protocol VLAN Range TOS Src IP mask Dest IP mask Min Src Port Max Src Port Min Dst Port Max Dst Po...

Page 733: ...reaching the maximum clipping The leftover 3500 Kbps 5000 1500 3500 is again given to the main pool Rule 2 does not have enough traffic coming in so it will use only 2500 kbps 5000 2500 the remaining...

Page 734: ...otal output data rate and what are the individual port output data rates ANSWER The Layer 3 QoS system first drains Priority 1 traffic Since the management data stream is only 200 Kbps after serving P...

Page 735: ...00 100 Kbps Data 4 7 ASFD3 b011010 1 Mbps NA 400 100 Kbps Data 5 7 ASFD2 b010010 1 Mbps NA 500 100 Kbps Data 6 7 ASFD1 b001010 1 Mbps NA 800 100 Kbps Data 7 8 BE bXXXXXX 2 Mbps NA 0 Kbps Total 14 Mbps...

Page 736: ...m bandwidth rate R 4 2 Minimum Data Rate Due to ACM when the data rate s available bandwidth exceeds the minimum data rate per QoS Min Max and DiffServ modes ASFD classes the QoS system operates as no...

Page 737: ...a rate Leftover BW After Serving the Queue QoS output Data rate Management 1 CS7 b111000 200 Kbps 9 8 Mbps 200 Kbps Networking Control 2 CS6 b110000 800 Kbps 9 0 Mbps 800 Kbps Voice 3 EXFD b101110 1 M...

Page 738: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix R Revision 4 R 16 Notes...

Page 739: ...d the assumptions of linearity and or frequency stability are not true then you should be aware of the potential degradations that can be caused by using lower values of Tx As the rolloff decreases th...

Page 740: ...Rx Alpha Rx accordingly Comtech EF Data has analyzed the effect of mismatching Tx and Rx and has concluded that there is little benefit in providing six values of Rx It has been determined that just t...

Page 741: ...he acronym for Remote Authentication Dial In User Service This is a networking protocol that provides centralized access authentication authorization and management for CDM 625A Advanced Satellite Mod...

Page 742: ...es received from the RADIUS server and sets access levels accordingly Value Description Access Level 6 Administrative Admin Read write 7 NAS Prompt Read only 11 Callback Administrative Read Write acce...

Page 743: ...he modem transmits the RADIUS Access Request message to the Secondary RADIUS Server D If the Secondary RADIUS Server is not available then the modem transmits the HTTP Access Denied message error page...

Page 744: ...er No Access to Admin or IP Packet Processor related Telnet remote commands and queries Telnet CLI and web pages Full read write access to all modem configuration and monitoring web pages except Admin...

Page 745: ...sabled or the modem cannot access the primary and the secondary server any user trying to access the modem will be authenticated with the locally stored username and password which provides full Admin...

Page 746: ...page From the front panel main SELECT menu use the arrow keys to select the Configuration menu branch and then press ENTER From the CONFIG menu branch use the arrow keys to select the IP submenu and...

Page 747: ...ist to select the authentication protocol as PAP Password Authentication Protocol or CHAP Challenge Handshake Authentication Protocol Primary Secondary Server IP Address Enter the pertinent Server IP...

Page 748: ...net Remote Control Interface not to be confused with the Telnet CLI Command Line Interface using the Administrator Name and Password Command Query Function RAE Enables Disables RADIUS operation RAA As...

Page 749: ...on procedure assuming that A The Source Modem A and Target Modem B modems are running the latest available firmware versions see Chapter 4 UPDATING FIRMWARE B The Source Modem A and Target Modem B mod...

Page 750: ...y connected and communicating 2 Use Command line to create via FTP the Modem Configuration File from the Source Modem and save it to the User PC Make sure that you are in the newly created folder Type...

Page 751: ...taining the Modem Configuration File config_file created in Sect U 2 1 Use a text editor such as Windows Notepad to open the Modem Configuration File config_file Add as the first line in the configura...

Page 752: ...perations for CDM 625A Base Modem users Type put config_file config without quotes at the Command line ftp prompt and then press the Enter key to begin the file upload You will observe the progress si...

Page 753: ...n done The IP Address that appears here is provided as an example only Make sure that you re use the Traffic Management IP Address that was assigned to the Target Modem prior to reconfiguration Use Se...

Page 754: ...CDM 625A Advanced Satellite Modem MN CDM625A Appendix U Revision 4 U 6 Notes...

Page 755: ......

Page 756: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...

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