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MN-DMD2050E Revision 2

Comtech EF Data is an

AS9100 Rev B / ISO9001:2000 Registered Company

DMD-2050E

Universal Satellite Modem

Installation and Operation Manual

IMPORTANT NOTE: The information contained in this document supersedes all previously published information

regarding this product. Product specifications are subject to change without prior notice.

Содержание DMD-2050E

Страница 1: ...ered Company DMD 2050E Universal Satellite Modem Installation and Operation Manual IMPORTANT NOTE The information contained in this document supersedes all previously published information regarding t...

Страница 2: ......

Страница 3: ...ata Part Number ER DMD2050E EA2 Errata documents are not subject to revision PLM CO Number C 0028800 Comments The new information will be included in the next released revision of the manual IMPORTANT...

Страница 4: ...ER DMD2050E EA2 Rev PLM C 0028800 Blank Page...

Страница 5: ...Update Subject Chapter 3 and Chapter 4 references to MN DMDREMOTEOP manual Errata Part Number ER DMD2050E EB2 Errata documents are not subject to revision PLM CO Number C 0028804 Comments The new inf...

Страница 6: ...text allows a user with appropriate authentication to access the device control portion of the MIB These OIDs are used to control the devices satellite link and operation TRAP VERSION V1 V2 This contr...

Страница 7: ...device The RS 232 operating parameters can be set using the modem Front Panel and stored in Non volatile memory for future use IMPORTANT Refer to the Remote Protocol Manual MN DMDREMOTEOP for the Term...

Страница 8: ...ER DMD2050E EB2 Rev PLM C 0028804 Blank Page...

Страница 9: ...ation Update Subject Preface Electrical Safety section page xx change power consumption maximum Errata Part Number ER DMD2050E EC2 Errata documents are not subject to revision PLM CO Number C 0035622...

Страница 10: ...ER DMD2050E EC2 Rev PLM C 0035622 Blank Page...

Страница 11: ...tion Update Subject EBEM mode set up on the DMD2050E add 3 8 1 to Section 3 8 Errata Part Number ER DMD2050E ED2 Errata documents are not subject to revision PLM CO Number C 0035823 Comments The new i...

Страница 12: ...ER DMD2050E ED2 Rev PLM C 0035823...

Страница 13: ...EF Data Documentation Update Subject Add Appendix K Compatibility with other DMD Modems Errata Part Number ER DMD2050E EE2 Errata documents are not subject to revision Comments The new information wi...

Страница 14: ...ER DMD2050E EE2 Rev 2 Blank Page...

Страница 15: ...MN DMD2050E Revision 2 K 1 ER DMD2050E EE2 Rev Appendix K Compatibility with Other DMD Modems K 1 Compatibility with Other DMD Modems...

Страница 16: ...al Feature 8 4 2 048 Sequential Feature Sequential Feature OQPSK Viterbi 1 2 4 8 10 000 Standard Standard Standard 4 8 30 000 Standard Standard 3 4 7 2 15 000 Standard Standard Standard 7 2 45 000 Sta...

Страница 17: ...4 7 2 13 824 DVB Feature DVB Feature DVB Feature 7 2 13 824 DVB Feature DVB Feature 5 6 8 0 15 359 DVB Feature DVB Feature DVB Feature 8 0 15 359 DVB Feature DVB Feature 7 8 8 4 16 127 DVB Feature DVB...

Страница 18: ...Feature HW 2 TPC Feature TPC Feature 8 4 20 000 TPC Feature HW14 Standard 0 495 64 0 6 132 TPC Feature HW15 64 0 6 132 TPC Feature HW15 0 793 64 0 6 132 TPC Feature HW15 64 0 6 132 TPC Feature HW15 T...

Страница 19: ...M TPC Feature HW15 0 875 20 000 1 52 000 16QAM TPC Feature HW15 165B Turbo Modes BPSK Turbo 1 2 64 5 000 EBEM Feature HW17 64 15 000 EBEM Feature HW17 Standard 2 3 64 6 667 EBEM Feature HW17 64 20 000...

Страница 20: ...LDPC Feature HW19 LDPC Feature QPSK HP LDPC 1 2 4 8 10 000 LDPC Feature HW16 LDPC Feature HW18 LDPC Feature HW20 4 8 20 000 LDPC Feature HW16 LDPC Feature 2 3 6 4 13 333 LDPC Feature HW16 LDPC Featur...

Страница 21: ...PC Feature 16QAM HP LDPC 3 4 14 4 20 000 16QAM LDPC Feature HW16 16QAM LDPC Feature HW18 16QAM LDPC Feature HW20 14 4 20 000 16QAM LDPC Feature HW16 LDPC Feature TX Direct Sequence Spread Spectrum BPS...

Страница 22: ...ure HW20 4 8 5 000 LDPC Feature HW19 DSSS Feature LDPC Feature FACTOR x4 4 8 2 500 LDPC Feature HW19 LDPC Feature HW20 4 8 2 500 LDPC Feature HW19 DSSS Feature LDPC Feature FACTOR x8 4 8 1 250 LDPC Fe...

Страница 23: ...ACTOR x16 6 3 0 817 LDPC Feature HW19 LDPC Feature HW20 6 3 0 817 LDPC Feature HW19 DSSS Feature LDPC Feature HP LDPC OFF 3 4 7 0 14 685 LDPC Feature HW19 LDPC Feature HW20 7 0 14 686 LDPC Feature HW1...

Страница 24: ...e HW20 4 7 4 933 LDPC Feature HW19 DSSS Feature LDPC Feature FACTOR x4 4 7 2 467 LDPC Feature HW19 LDPC Feature HW20 4 7 2 466 LDPC Feature HW19 DSSS Feature LDPC Feature FACTOR x8 4 7 1 233 LDPC Feat...

Страница 25: ...Satellite Framing ALL IDR 96K T1 E1 T2 E2 IDR Feature Framing Only HW9 for IESS IDR Feature for Framing IDR Feature Framing Only HW9 for IESS T1 E1 T2 E2 T3 E3 IDR Feature Framing Only HW9 for IESS I...

Страница 26: ...urbo 1 2 64 10 000 EBEM Feature HW28 64 30 000 EBEM Feature HW28 Standard 2 3 64 13 333 EBEM Feature HW28 64 40 000 EBEM Feature HW28 Standard 3 4 64 15 000 EBEM Feature HW28 64 45 000 EBEM Feature HW...

Страница 27: ...ature HW27 TPC Feature HW27 8 4 20 000 TPC Feature HW27 Standard 8PSK TPC 3 4 10 8 18 947 8PSK TPC Feature HW27 8PSK TPC Feature HW27 8PSK TPC Feature HW27 10 8 20 000 8PSK TPC Feature HW27 Standard 7...

Страница 28: ...DPC Feature HW27 LDPC Feature HW27 LDPC Feature HW27 7 2 20 000 LDPC Feature HW27 LDPC Feature ULL LDPC 1 2 4 7 8 308 LDPC Feature HW27 LDPC Feature HW27 4 7 20 000 LDPC Feature HW27 LDPC Feature 2 3...

Страница 29: ...vise 7 11 1 Data Rate Limits for Non DVB Revise Appendix K Compatibility with other DMD Modems This erratum supersedes Errata E Errata Part Number ER DMD2050E EF2 Errata documents are not subject to r...

Страница 30: ...ER DMD2050E EF2 Rev 2...

Страница 31: ...ER DMD2050E EF2 Rev 3...

Страница 32: ...MN DMD2050E Revision 2 K 1 Appendix K Compatibility with Other DMD Modems K 1 Compatibility with Other DMD Modems ER DMD2050E EF2 Rev...

Страница 33: ...000 Standard Standard 3 4 2 15 000 Standard Standard Standard 2 45 000 Standard Standard 4 1 500 Standard Standard Standard 4 52 000 Standard Standard Viterbi RS 1 2 4 10 000 R N RS Feature RS Featur...

Страница 34: ...s 2 3 6 1 431 PS DVB Feature PS DVB Feature PS DVB Feature 6 1 431 PS DVB Feature DVB Feature 5 6 12 0 20 000 PS DVB Feature PS DVB Feature PS DVB Feature 12 0 20 000 PS DVB Feature DVB Feature 12 20...

Страница 35: ...PS TPC 3 4 10 20 000 PS TPC Feature HW14 PS TPC Feature PS TPC Feature 10 20 000 PS TPC Feature HW14 Standard 12 6 20 000 PS TPC Feature HW14 PS TPC Feature PS TPC Feature 12 6 20 000 PS TPC Feature H...

Страница 36: ...41 EBEM Feature HW1 64 2 24 EBEM Feature HW1 Standard PS Turbo 1 2 64 10 EBEM Feature HW1 64 2 30 EBEM Feature HW1 Standard 2 3 64 13 1 EBEM Feature HW1 64 3 55 EBEM Feature HW1 Standard 3 4 64 14 1...

Страница 37: ...HW20 2 20 000 DPC Feature HW16 DPC Feature U DPC 1 2 4 66 DPC Feature HW1 DPC Feature HW20 4 20 000 DPC Feature HW1 DPC Feature 2 3 6 3 13 0 DPC Feature HW1 DPC Feature HW20 6 3 20 000 DPC Feature HW...

Страница 38: ...ACTOR x4 2 4 1 250 DPC Feature HW1 DPC Feature HW20 2 4 3 50 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x 2 4 625 DPC Feature HW1 DPC Feature HW20 2 4 1 5 DPC Feature HW1 DSSS Feature DPC Feature...

Страница 39: ...ure HW20 4 66 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x2 4 4 33 DPC Feature HW1 DPC Feature HW20 4 4 33 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x4 4 2 46 DPC Feature HW1 DPC Feature HW...

Страница 40: ...eature HW20 0 1 35 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x16 0 1 DPC Feature HW1 DPC Feature HW20 0 1 DPC Feature HW1 DSSS Feature DPC Feature O PS HP DPC OFF 1 2 4 10 000 DPC Feature HW1 DP...

Страница 41: ...Feature HW20 6 3 6 53 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x4 6 3 3 2 0 DPC Feature HW1 DPC Feature HW20 6 3 3 26 DPC Feature HW1 DSSS Feature DPC Feature FACTOR x 6 3 1 635 DPC Feature HW1...

Страница 42: ...nced Async Feature Enhanced Async Feature EFFICIENT D I N x 64 64 1536 204 Drop and Insert Feature Drop and Insert Feature Framing Only Drop and Insert Feature N x 64 64 1536 204 IDR Feature Framing O...

Страница 43: ...rbo 1 2 256 1 6 1 EBEM Feature HW2 256 52 000 EBEM Feature HW2 Standard 2 3 256 20 000 EBEM Feature HW2 256 52 000 EBEM Feature HW2 Standard 3 4 256 20 000 EBEM Feature HW2 256 52 000 EBEM Feature HW2...

Страница 44: ...DPC 1 2 2 4 4 154 DPC Feature HW2 DPC Feature HW2 2 4 12 463 DPC Feature HW2 DPC Feature PS HP DPC 1 2 4 421 DPC Feature HW2 DPC Feature HW2 DPC Feature HW2 4 20 000 DPC Feature HW2 DPC Feature 2 3 6...

Страница 45: ...e HW2 DPC Feature 3 4 10 1 4 PS DPC Feature HW2 PS DPC Feature HW2 PS DPC Feature HW2 10 20 000 PS DPC Feature HW2 DPC Feature AM HP DPC 2 3 6 16 42 AM DPC Feature HW2 AM DPC Feature HW2 AM DPC Featur...

Страница 46: ...USA Comtech EF Data 2114 West 7th Street Tempe Arizona 85281 USA 480 333 2200 FAX 480 333 2161 Comtech EF Data is an AS9100 Rev B ISO9001 2000 Registered Company DMD2050E Universal Satellite Modem Ins...

Страница 47: ...BLANK PAGE...

Страница 48: ...duct support xxiii On the web xxiii Return material authorization xxiii Support business hours xxiii After hours and weekends xxiii Comtech EF Data and Radyne support contacts xxiii Warranty Policy xx...

Страница 49: ...2 DMD2050E Baseband Processing Printed Circuit Card 3 3 3 1 3 Enhanced Interface Printed Circuit Card 3 5 3 2 DMD2050E Functional Block Diagram 3 5 3 2 1 Front Panel 3 5 3 2 2 Baseband Processing 3 5...

Страница 50: ...reement 3 21 3 10 1 2 Key Agreement Algorithm 3 24 3 10 1 2 1 Key Derivation 3 24 3 10 1 3 Accessing Encryption Decryption Features 3 24 3 10 1 4 Enabling Encryption from the Front Panel 3 24 3 11 Dou...

Страница 51: ...15 Asynchronous Overhead Operation Async Port ES ES Communications 3 58 3 16 Standard IBS Mode 3 60 3 17 Asynchronous Multiplexer Mode 3 61 3 18 ESC Backward Alarms 3 61 3 18 1 To Disable the ESC Back...

Страница 52: ...4 3 INTERFACE Main Menu and Parameters 4 19 4 4 3 1 TX SETUP menu 4 19 4 4 3 1 1 DROP INSERT menu 4 21 4 4 3 1 2 TX ASYNC MODE menu 4 21 4 4 3 2 RX SETUP menu 4 22 4 4 3 2 1 DROP INSERT menu 4 23 4 4...

Страница 53: ...sed Net Alarms Configuration 5 7 5 3 4 3 RTS Carrier Alarms Configuration 5 7 5 3 5 EXT CLK J16 5 7 5 3 6 ASYNC J17 5 8 5 3 7 ANT HANDOVER J18 Future Option 5 8 5 3 8 MIL 188 114A J19 5 9 5 3 9 Monito...

Страница 54: ...Gigi Ethernet Data Interface 7 4 7 8 Key loader interface 7 4 7 9 Environmental 7 4 7 10 Physical 7 4 7 11 Data Rate Limits 7 5 7 11 1 Non DVB 7 5 7 11 2 DVB 7 7 7 12 BER Specifications 7 9 7 12 1 BE...

Страница 55: ...ns A 1 APPENDIX B FRONT PANEL UPGRADES AND DEMONSTRATION MODE B 1 B 1 Introduction B 1 B 2 Required Equipment B 1 B 3 Procedures B 1 B 3 1 Record the Features and Options B 2 B 3 2 Record the Unit ID...

Страница 56: ...9 D 6 2 1 Change the encoding D 10 D 6 2 2 Install the Internet Explorer Tab V2 add on D 11 D 6 3 Configure Chrome for the Radyne WEB Browser D 12 D 6 3 1 Change the encoding D 13 D 6 3 2 Install the...

Страница 57: ...rerequisite E 24 E 9 Efficient Drop and Insert Mode E 25 E 9 1 Calculating the Required Satellite Bandwidth E 26 E 9 2 Calculating the Basic Efficient D I Rate E 26 E 9 3 Calculating the Efficient D I...

Страница 58: ...Like A FIFO H 4 H 1 6 Packet Statistics H 5 APPENDIX I STRAP CODES I 1 I 1 Strap Codes I 1 I 1 1 An example of how to set a strap code I 1 I 2 Sample Applications I 6 I 2 1 Operational Case Examples I...

Страница 59: ...5 3 Pinouts for J15 ALARM Port 15 pin Female D Connector 5 6 Table 5 4 Pinouts for J17 ASYNC Port 9 pin Female D Connector 5 8 Table 5 5 Pinouts for J19 MIL 188 114A Port 25 pin Female D Connector 5 9...

Страница 60: ...io 3 63 Figure 3 23 1 to 1 Control Ratio 3 63 Figure 4 1 Front Panel 4 1 Figure 4 2 Enter New Parameters 4 4 Figure 5 1 DMD2050E Universal Satellite Modem Front Panel 5 1 Figure 5 2 DMD2050E Rear Pane...

Страница 61: ...dulator Data J 6 Figure J 3 Initial Setup DMD2050E Modulator ITA J 7 Figure J 4 Initial Setup DMD2050E Demodulator IF J 8 Figure J 5 Initial Setup DMD2050E Demodulator Data J 9 Figure J 6 Initial Setu...

Страница 62: ...being performed Patents and Trademarks See all of Comtech EF Data s Patents and Patents Pending at http patents comtechefdata com Comtech EF Data acknowledges that all trademarks are the property of...

Страница 63: ...T GROUNDING PROTECTION REQUIRED Always make sure the ground stud on the rear panel of the unit is connected to protective earth Correct grounding protection helps prevent personal injury and equipment...

Страница 64: ...e LVD The following information is applicable for the European Low Voltage Directive EN60950 HAR Type of power cord required for use in the European Community CAUTION Double pole Neutral Fusing ACHTUN...

Страница 65: ...Mark Comtech EF Data declares that the DMD2050E meets the necessary requirements for the CE Mark RoHS The DMD2050E satisfies with exemptions the requirements specified in the European Union Directive...

Страница 66: ...ort contacts Products Contact x Satellite Modems x Modem Accessories x Amplifiers x Converters x Transceivers x Terminals Tel 1 480 333 4357 Fax 1 480 333 2500 Email techsupport comtechefdata com x IP...

Страница 67: ...F Data Corporation The warranty does not apply to any product or parts thereof where the serial number or the serial number of any of its parts has been altered defaced or removed The warranty does no...

Страница 68: ...ront Panel The DMD2050E provides highly advanced and bandwidth efficient forward error correction FEC Advanced FEC options include Low Density Parity Check LDPC Turbo Product Codes TPCs and 165B Turbo...

Страница 69: ...adyne Link Level Protocol Ethernet 10 Base T SNMP and Web Browser includes control of all the modem s features plus software maintenance Additionally the Vacuum Fluorescent Display VFD can be suppleme...

Страница 70: ...x DVB 1 2 2 Advanced Forward Error Correction and Modulation The DMD2050E has bandwidth efficient advanced forward error correction FEC Advanced FEC options include x Low Density Parity Check LDPC x T...

Страница 71: ...ons on a larger screen connect a personal computer PC running terminal software to the DMD2050E Control of all the DMD2050E features and update the software remotely using RLLP Radyne Link Level Proto...

Страница 72: ...DMD2050E Universal Product Modem Introduction MN DMD2050E Revision 2 1 5 1 2 7 1 Dimensional Envelope...

Страница 73: ...ch EF Data for information about available options and feature upgrades IMPORTANT Only authorized service personnel must handle and install hardware options The options for the DMD2050E include Chassi...

Страница 74: ...ape at the top of the carton 3 Remove the packing material that covers the equipment 4 Remove the equipment 5 Keep the carton and packing material 6 Inspect the equipment for damage Note If damage exi...

Страница 75: ...the unit disconnect the transmit output from the operating ground station equipment CAUTION CORRECT GROUNDING PROTECTION REQUIRED Always make sure the ground stud on the rear panel of the unit is conn...

Страница 76: ...m the rear of the unit the rear panel lets power enter from the left and IF cables enter from the right Data and control cables enter from either side depending on installed options You can stack up t...

Страница 77: ...t leaves the factory with preset configuration defaults IMPORTANT The transmit and receive interface type settings vary depending on the options ordered from the factory When you first start the unit...

Страница 78: ...transmit output from the operating ground station equipment before starting the unit for the first time Starting the unit with incorrect settings could disrupt the existing communications traffic At t...

Страница 79: ...DMD2050E Universal Satellite Modem Installation MN DMD2050E Revision 2 2 6 BLANK PAGE...

Страница 80: ...ted circuit cards available for additional features The minimum configuration consists of an L Band IF Assembly and a Digital Baseband Assembly The optional printed circuit cards include a Turbo Codec...

Страница 81: ...gram In the modulator analog in phase I and quadrature Q signals are generated on the Digital Baseband Printed Circuit Card routed to the L Band IF Printed Circuit Card and modulated at the desired fr...

Страница 82: ...ion is needed a new configuration file is loaded into the FPGA There is no limit to the number of digital logic configurations available to the FPGA aside from the amount of Flash memory available to...

Страница 83: ...also contains the Monitor and Control M C Circuitry responsible for x Programmable part setup and initialization x Continuous control and adjustment of some functions x Calibration x Monitoring fault...

Страница 84: ...variety of connections to the modem for additional applications 3 2 DMD2050E Functional Block Diagram Figure 3 4 represents the DMD2050E Functional Blocks The modem is shown in a typical application w...

Страница 85: ...ata passes through the framer unaltered In IDR IBS and D I Modes the framer adds the appropriate framing and ESC as defined in IESS 308 and 309 In D I Mode the framer acquires the terrestrial framing...

Страница 86: ...Data Stream 3 2 5 Monitor Control M C Subsystem The modems M C system is connected to most of the circuitry on any board contained in the modem These connections provide status on the working conditio...

Страница 87: ...ating parameters can be set using the modem Front Panel and stored in Non volatile memory for future use IMPORTANT Refer to the Remote Protocol Manual MN DMDREMOTEOP for the Terminal Remote and SNMP s...

Страница 88: ...e modems various user interfaces front panel remote and terminal A summary of this information can be connected to external equipment switches or alarms via the open collector and or form C fault conn...

Страница 89: ...e Rx Data port after the interface driver receiver after the fraiming unit x RX Terrestrial Loopback Receive Data from the satellite is looped back for retransmission to the satellite providing a far...

Страница 90: ...DMD2050E Universal Satellite Modem Theory of Operation MN DMD2050E Revision 2 3 11 Figure 3 5 Loopback Functional Block Diagram...

Страница 91: ...DMD2050E Universal Satellite Modem Theory of Operation MN DMD2050E Revision 2 3 12 Figure 3 6 Loopback Functional Block Diagram...

Страница 92: ...2050E Refer to Figure 3 8 for clocking and polarity 3 5 1 Clock Selection The modem supports a number of different clocking options that can be recovered from the satellite or the terrestrial links Th...

Страница 93: ...RR DATA DATA POLARITY BUFFER CLK POL NORMAL INVERTED INV TERR BASE INVERT NONE INV BASEBAND INV TERR DATA Figure 3 8 Clocking and Polarity Diagram 3 5 2 TX Clock Options TX clock options can be recove...

Страница 94: ...T clock source can be used as the TX clock source RX Buffer Clock source and the Terrestrial Terminal equipment for clocking the transmit data If the SCT clock is recovered from the satellite then it...

Страница 95: ...sert The modem handles RX Buffer clock selections based on source priority levels The user assigns priorities to the clock sources based on source selections Source 1 has the highest priority and Sour...

Страница 96: ...1 T1 Drop and Insert applications The available T1 E1 Frame Source selections are External Internal and IDI DDO Loopback The T1 E1 Frame Source selections can be accessed in the INTERFACE RX SETUP men...

Страница 97: ...to the modem The Clock Polarity should be set to AUTO If SCT is selected then only data that is synchronous to the SCT Clock is required to be supplied to the modem It is intended for the terminal eq...

Страница 98: ...the selected clock source 3 7 1 Loop Timing If loop timing is desired i e the modem timing is slaved to the far end master station the modem clocks can be configured as follows 3 7 2 Transmit MIL 188...

Страница 99: ...nel The nominal rate of the embedded channel is 4 kbps 3 9 STANAG Turbo Coding The DMD2050E provides STANAGE Turbo coding FEC for all specified baseband data rates 64 kbps to 52 0 Mbps and modulation...

Страница 100: ...ounters 3 10 1 Traffic Encryption and Decryption Keys and Key Generation The AES key and the initial counter value of the counter are negotiated using the key negotiation algorithm and messages The re...

Страница 101: ...ekey Timer Expired Action Send KA Message Event Timeout Action Resend KA Message Event Timeout Action None Event RX Sync Lost Message received Action Zeroize TEK MnC initiated Mailbox message to FIPs...

Страница 102: ...Loss of IF Lock Action Zeroize TEK Send RX Sync Lost Message Event KA Received Encryption Not Enabled Action Send Key Agreement NACK MnC needs to mail the overriding state of the decryption to the FIP...

Страница 103: ...cryption Features The DMD2050E enables the Crypto Officer to administer the FIPs module through authentication The Crypto Officer Administrator can x Load software x Load key material x Configure oper...

Страница 104: ...s 1 Use the secure web interface Figure 3 11 or the handheld key loader Figure 3 12 to enter Encryption Control parameters 2 Enter a maximum of 78 numeric characters into the Random Number Generator R...

Страница 105: ...the service For a satellite transponder that has finite resources in terms of bandwidth and power the leasing costs are determined by bandwidth and power used Therefore a satellite circuit should be...

Страница 106: ...alone allowing users to achieve unprecedented savings When combined with advanced modulation and FEC it allows for multi dimensional optimization x Reduced operating expense OPEX e g Occupied Bandwidt...

Страница 107: ...ovement of the satellite The CnC module tracks and compensates for this variation Frequency offset and drift Common sources are satellite Doppler shift up and down converter frequency uncertainties an...

Страница 108: ...ny of these become too great In addition CnC operates in an environment where x Carriers intentionally occupy the same spectral slot x Performance depends upon desired and co located interfering carri...

Страница 109: ...y range to the nominal reported value 5 ms for example if the modem reported delay is 245 ms narrow the search range to say 240 250 ms x Use external data source e g Firebird or internal BER tester wh...

Страница 110: ...carrier to the demodulator for normal processing To further illustrate as shown in Figure 3 4 without DoubleTalk Carrier in Carrier the two carriers in a typical full duplex satellite link are adjacen...

Страница 111: ...ilizes the DoubleTalk Carrier in Carrier technique for signal suppression One possible way to mitigate false peaks is to narrow the correlation window For example if the delay is known to be around 24...

Страница 112: ...cks all parametric differences between the local uplink signal and its image within the downlink Through advanced adaptive filtering and phase locked loop implementations it dynamically compensates fo...

Страница 113: ...search algorithm is utilized that correlates the received satellite signal to a stored copy of the local modulator s transmitted signal The interference cancellation algorithm uses the composite signa...

Страница 114: ...tion Nominal Margin BPSK 0 3 dB QPSK OQPSK 0 3 dB 8 PSK 0 5 dB 8 QAM 0 4 dB 16 QAM 0 6 dB Equal power and equal symbol rate for the interfering carrier and the desired carrier i e 0 dB PSD ratio Measu...

Страница 115: ...ymbol rate and power This can be achieved by selecting appropriate MODCODs as shown in following sections 3 11 9 1 Symmetric Data Rate Link Consider the following example Satellite Transponder Galaxy...

Страница 116: ...37 Carrier in Carrier link design involved trying different Modulation FEC Code Rates to find the optimal combination x 8 QAM LDPC 2 3 with Carrier in Carrier x QPSK LDPC 3 4 with Carrier in Carrier...

Страница 117: ...DMD2050E Universal Satellite Modem Theory of Operation MN DMD2050E Revision 2 3 38 Link parameters and LST summary for QPSK LDPC 2 3 with Carrier in Carrier is as follows...

Страница 118: ...0 7 W 0 5 W 40 HPA 2 4 m 1 5 W 1 1 W 36 3 11 9 2 Asymmetric Data Rate Link As occupied or allocated bandwidth of a Carrier in Carrier circuit is dictated by the larger of the two carriers it is strong...

Страница 119: ...ub to Remote Remote To Hub Total Hub to Remote Remote to Hub Total Data Rate kbps 3000 1000 3000 1000 Modulation QPSK QPSK QPSK QPSK FEC TPC 3 4 TPC 3 4 LDPC 3 4 LDPC 1 2 Occupied BW MHZ 2 8 0 9 3 7 2...

Страница 120: ...es The conventional link is using 8 PSK TPC 3 4 Switching to an advanced FEC and using a lower order modulation e g QPSK STANAG TURBO 7 8 increases the total occupied bandwidth while reducing the tota...

Страница 121: ...dB HPA BO for 8 PSK 1 dB Feed Loss Using Carrier in Carrier and STANAG TURBO 7 8 reduced the leased bandwidth by almost 44 and HPA power by 60 3 11 10 Carrier in Carrier Commissioning and Deployment...

Страница 122: ...at Site A 2e Using a spectrum analyzer measure Co No No at the input to the modem at Site B 2f Measure record Eb No at Site A Make sure there is sufficient margin to account for CnC 2g Measure record...

Страница 123: ...e desired Eb No 1b Carrier in Carrier should be OFF 1c Record the Eb No as displayed by the Modems 1d Observe the 2 carriers on a spectrum analyzer and record the PSD ratio Example Link Full duplex 51...

Страница 124: ...E 3 Calculate the Allocated Bandwidth BW and Power Equivalent Bandwidth PEB for the duplex link x BWDuplex Link Greater of BWCarrier 1 BWCarrier 2 x PEBDuplex Link PEBCarrier 1 PEBCarrier 2 x Leased B...

Страница 125: ...a link budget using Downlink EIRP and Symbol Rate PSD Downlink EIRP 10 Log Symbol Rate PSD Ratio Example Carrier Downlink EIRP Symbol Rate Power Spectral Density A to B 27 dBW 500 ksps 29 99 dBW Hz B...

Страница 126: ...nalyzer PSD Ratio or CnC Ratio can also be estimated using a Spectrum Analyzer capable of integrating the signal power in a given bandwidth CnC Ratio in dB PowerC1 in dBm PowerC2 in dBm PSD Ratio in d...

Страница 127: ...f power spectral density 7 dB Absolute 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 th...

Страница 128: ...ta rate 3 11 15 Glossary Allocated Bandwidth Bandwidth or Allocated Bandwidth or Occupied Bandwidth is the frequency space required by a carrier on a transponder For example a Duplex E1 2 048 Mbps Cir...

Страница 129: ...ty PSD Power Spectral Density PSD is the signal power per unit bandwidth dBW Hz or dBm Hz For example Signal power 20 dBm Signal bandwidth 500 kHz PSD 20 10 log 500 1000 36 99 dBm Hz PSD Ratio PSD rat...

Страница 130: ...thin that channel He concluded that it would only be possible to approach this limit through the use of source encoding what is familiar today as Forward Error Correction Shannon postulated that if it...

Страница 131: ...can easily be accommodated in a large Field Programmable Gate Array FPGA device The LDPC method on its own produces an undesirable flaring in the Bit Error Rate BER vs Eb No characteristic and for thi...

Страница 132: ...o 0 95 both an LDPC and a TPC codec need to be offered In order to meet this requirement Comtech EF Data has developed a combination LDPC TPC Codec module that can be added to the DMD2050E Modem Table...

Страница 133: ...be pre installed in new modems ordered from the factory It also requires the appropriate FAST codes for enabling operation beyond the base data rate limit of 5 Mbps Please contact the Sales Departmen...

Страница 134: ...B 4 3 dB 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...

Страница 135: ...R S Codec requires an increase in transmission bandwidth of only 9 12 while producing a greater than 2 dB improvement in Eb No R S is a block Codec where K data bytes are fed into the encoder which ad...

Страница 136: ...D2050E automatically sets the correct R S code rate for IDR IBS open network operation in accordance with the data shown in Table 3 4 In Closed Net Mode the DMD2050E allows the following N and K setti...

Страница 137: ...896 8 8 8 8 18 13 4 3 DVB All 204 188 8 0 0851 12 1 n code length k information symbols and t symbol error correcting capability 2 Design objective 3 14 DMD2050E Automatic Uplink Power Control AUPC Op...

Страница 138: ...trolled modes are designed into the card to best utilize the available bits Standard IBS and IBS Async The characteristics of the Channel Interface is also determined by the standard or Async mode The...

Страница 139: ...d The bits of Overhead Housekeeping byte 32 are implemented as shown in Table 3 6 Table 3 6 Bits of Overhead Housekeeping Byte 32 Bit 1 ES to ES Data Channel This bit is routed directly to the ES to E...

Страница 140: ...ficantly higher speed ES to ES Data Channel under software control When implemented this rate is 16 times that of the normal IBS standard or 1 30th of the terrestrial data rate 1 32nd of the aggregate...

Страница 141: ...trol Channel SCC The SCC format uses a variable overhead rate to transmit an asynchronous data channel in addition to the normal data channel The SCC asynchronous mode implemented on the DMD2050E is P...

Страница 142: ...lows a lower overhead rate but since there are less Sync Words there is a higher acquisition time The following examples show a control ratio of 1 to 3 and 1 to 1 Example 1 shows three Control Words f...

Страница 143: ...e In Band Rate In Band Rate Control Ratio User Data Rate In Band Rate Synchronizing Overhead Aggregate Data Rate As an example given the following parameters User Data Rate 1 024 000 bps In Band Rate...

Страница 144: ...ixed overhead ratio of 16 15 or 1 067 The following table gives some example overhead rates for different user data and control ratios User Data Rate In Band Rate Control Ratio Aggregate Data Rate Ove...

Страница 145: ...modem calculates the number of bits for each user data slot result is truncated to an integer Slot Bits User Data Rate Control Ratio 10 In band Rate Control Ratio 1 The actual ratio the modem uses is...

Страница 146: ...lows the user to request the rate of in band data for the overhead channel This sets the overhead amount only The actual amount of data that can be passed through the overhead channel will be set unde...

Страница 147: ...te Kbps SCC Control Channel Rate In Band Overhead Rate Setting Symbol Rate 9 6 1 1 300 6800 9 6 1 2 300 6700 9 6 1 3 300 6667 9 6 1 4 300 6650 9 6 1 5 300 6641 9 6 1 6 300 6634 9 6 1 7 300 6629 9 6 1...

Страница 148: ...ress the Left Arrow once to go to the Features Screen 5 Press the Down Arrow once A two row screen appears The top row is the unique ID number for the unit It is a 12 digit code 3 sets of 4 digits Wri...

Страница 149: ...DMD2050E Universal Satellite Modem Theory of Operation MN DMD2050E Revision 2 3 70 BLANK PAGE...

Страница 150: ...lable for typical operations x Front Panel x Remote Port x Terminal 4 2 Front Panel Interface Figure 4 1 shows the front panel Table 4 1 describes each of the functional areas x Vacuum Fluorescent Dis...

Страница 151: ...as The upper area shows the parameter that is being monitored such as Frequency or Data Rate The lower area shows the value of the monitored parameter 4 2 2 Arrow Keys Use the arrow keys to x Move thr...

Страница 152: ...r Function Modem LED Lights Power Green The unit is on Fault Red A hardware fault exists in the unit Event Yellow The unit has an event stored in memory Use the front panel or the terminal mode to exa...

Страница 153: ...ress ENTER to save the new data 4 3 3 Change a New Parameter Before Saving To make changes before you press ENTER press CLEAR After you press CLEAR the display shows the original parameter without any...

Страница 154: ...rates The following parameters are set for each NETWORK SPEC You cannot change these parameters while the unit is operating in the selected NETWORK SPEC mode NETWORK SPEC DATA RATES FRAMING SCRAMBLER...

Страница 155: ...r Power Level CARRIER ON OFF AUTO VSAT RTS Select the carrier type SPECTRUM NORMAL INVERTED Invert the direction of rotation for PSK Modulation Normal meets the IESS Specification MODULATION BPSK QPSK...

Страница 156: ...35 IESS V 35 CITT V 35 EF IBS w Optional Framing and optional Reed Solomon Reed Solomon Scrambler w Optional Framing CCITT V 35FC OM 73 V 35EF_RS TPC SCRAMBLER Turbo Codec DVB EDMAC EBEM Select the s...

Страница 157: ...RHEAD CHAN OFF 8K 16K 24K 32K 40K 48K 56K 64K Select the overhead channel bandwidth EMBEDDED CHAN ENABLE DISABLE Enable or disable the embedded overhead channel ENCRYPTION ENABLE DISABLE Enable or dis...

Страница 158: ...1 for valid n k values Displays the currently used n k Reed Solomon Codes In Closed Net Mode you can select custom R S Codes INTERLVR DEPTH 4 8 12 Select the Reed Solomon interleaver depth In Closed...

Страница 159: ...that the remote or local demodulator losses lock the output power level will adjust itself to the level settings indicated in the REMOTE CL ACTION Menu or the LOCAL CL ACTION RADYNE Enables Radyne Loc...

Страница 160: ...UPC the minimum Transmit Power is the lowest power setting that will be used by the local modem when the Eb No increases above the Eb No target MAXIMUM TX POWER 0 to 45 dB Set the maximum Transmit Pow...

Страница 161: ...Es No and commands to the local modem to increase or decrease the local transmit power TRACKING RATE 0 5 to 6 0 Set the rate at which the commands to increase or decrease Transmit Power are sent Each...

Страница 162: ...f the remote modem BER is reported from the 1x10 5 to 1x10 7 in tenth decade steps If the pattern does not synchronize or is out of range NO DATA is displayed 4 4 1 9 ITA menu IMPORTANT When the EBEM...

Страница 163: ...et parameters These preset parameters help reduce keystrokes and potential compatibility problems NETWORK SPEC MIL 188 165A EBEM IDR IBS DROP INSERT CLOSED NET DVB NETWORK SPECS and data rates must be...

Страница 164: ...ments SPECTRUM NORMAL INVERTED Invert the direction of rotation for PSK Modulation Normal meets the IESS Specification MODULATION BPSK QPSK OQPSK 8PSK 8QAM 16APSK 16QAM Select the demodulation type SP...

Страница 165: ...rrows or Keypad SYMB RATE sps View the Symbol Rate INNER FEC Viterbi 1 2 3 4 7 8 None Optional FEC Rates Sequential 1 2 3 4 7 8 CSC 3 4 Trellis 8PSK 2 3 TPC BPSK 5 16 21 44 20Mbps TPC OQPSK QPSK 1 2 3...

Страница 166: ...ERR BASE INV BASEBAND INV TERR DATA NONE Invert the Rx Data polarity SYMBOL PAIR NONE SWAPPED BPSK Mode Only Swap the I Q Channels ESC OVERHEAD VOICE X2 DATA 64KBPS IDR ESC Channel is used for Voice o...

Страница 167: ...K 1 2 NOT SELECTED SELECTED Used to select the mod code rate QPSK 2 3 NOT SELECTED SELECTED Used to select the mod code rate QPSK 3 4 NOT SELECTED SELECTED Used to select the mod code rate QPSK 7 8 NO...

Страница 168: ...T1 AMI G 703 T1 B8ZS V 35 HSSI ASI ETHERNET MIL 188 114A Select the Transmit Interface Type TX CLK SRC SCTE SCT Select the Transmit Clock Source TX CLK POL AUTO NORMAL INVERTED Select the Clock Polari...

Страница 169: ...Field or Ipv6 Traffic Class Field The Port Based priority overrides any standard priority When operating in this mode JS1 has the highest priority and JS4 has the lowest ETH QOS QUEUE FAIR WEIGHTED ST...

Страница 170: ...ial time slots available are determined by the drop mode The finished Tx edit map is copied to the Tx ACT map before it is used by the modem 4 4 3 1 2 TX ASYNC MODE menu TX ASYNC MODE MENU TX ASYNC MO...

Страница 171: ...st In the priority field the up down arrow keys will scroll through the list displaying the names and the current priority When the desired clock name is displayed the number keys may be used to assig...

Страница 172: ...fixed and the number of channels is determined by the data rate The terrestrial time slots available are determined by the drop mode The finished Tx edit map is copied to the Tx ACT map before it is...

Страница 173: ...Radyne App Note 230 for addition information on utilizing this feature as Keyline Operation CnC Switch Available only when CnC option is installed with CnC hardware allows user to bypass the alarms as...

Страница 174: ...ing measured by the modem Viterbi and Trellis only BIT ERRORS Displays the current error count from the Viterbi Decoder NOT DISPLAYED FOR TPC OR LDPC MODES 4 4 4 1 LINK STATUS menu IMPORTANT When the...

Страница 175: ...s are Down The link is down Unresolved Unable to agree on connection speed 10 Mbps Half Connected at 10 Base T Half Duplex 10 Mbps Full Connected at 10 Base T Full Duplex 100 Mbps Half Connected at 10...

Страница 176: ...ocated inside the modem 12V SUPPLY Displays the measured voltage of the 12 Volt power bus located inside the modem 4 4 4 3 CnC menu IMPORTANT When the Carrier in Carrier option is installed these para...

Страница 177: ...e satellite link 4 4 6 SYSTEM Main Menu and Parameters DATE MM DD YY Enter the current date TIME HH MM SS Enter the current time CONFIG COPY CURRENT CFG1 FG10 Save and copy modem configurations 4 4 6...

Страница 178: ...b setting to the standard IP Mask and addresses supplied by the modem The modem will be taken off the network and will not be accessible The Default settings are IP Address Mask 255 000 000 000 FF 00...

Страница 179: ...s no local router this address must be consistent with the modem address If a router has been specified the address is presumed to be reachable via the router Broadcast and loop back addresses will no...

Страница 180: ...dev context allows a user with appropriate authentication to access the device control portion of the MIB These OIDs are used to control the devices satellite link and operation TRAP VERSION V1 V2 Th...

Страница 181: ...PER ADMIN NO GROUP Denies all access GUEST Guests can access most of the site to see modem parameters OPER Operators can monitor and control parameter settings and change their own authentication pass...

Страница 182: ...xadecimal format Broadcast and loop back addresses will not be allowed These are addresses with all subnet bits set to 0 s or 1 s ROUTER IP ADDR XXX XXX XXX XXX The IP Address of the Router If a route...

Страница 183: ...SOFT RESET ENTER Resets the modem IF BOARD menu Indicates the part number for the IF Board Assembly IF RX LVL OFFSET Used for factory test only LB RX LVL OFFSET Used for factory test only AGC DAC Use...

Страница 184: ...Used for factory test only PLL LOOP GAIN Used for factory test only 4 4 6 10 2 FEATURES menu 5012 2840 2417 ____ ____ ____ Installs purchased feature upgrades see Appendix A Whether or not the feature...

Страница 185: ...ed at interface between the Baseband Processor Card and the Modem Card This ensures Framer Deframer integrity BASEBAND TX RX Enables both Baseband Tx and Baseband Rx NONE No loopback performed TERR RX...

Страница 186: ...ion 2 4 37 TEST MENU IQ SAMPLING ENABLE DISABLE Enables the I Q pattern on the Web Browser Interface IQ SPCTRM SMPLING ENABLE DISABLE Enables the Frequency Spectrum pattern on the Web Browser ICMP PIN...

Страница 187: ...Terminal Mode has eight screens Use these screens to set the following parameters x Modulator x Event x Latched Alarm x Insert Controls x Demodulator x Alarm x Drop Controls x Interface NOTE Refer to...

Страница 188: ...le between the terminal device and the REMOTE J20 connector on the rear of the unit 2 Set up Terminal Mode Communications and Protocol from the front panel of the unit a Set the System Remote Control...

Страница 189: ...DMD2050E Universal Satellite Modem User Interfaces MN DMD2050E Revision 2 4 40 BLANK PAGE...

Страница 190: ...MN DMD2050E Revision 2 5 1 Chapter 5 External Connections Figure 5 1 DMD2050E Universal Satellite Modem Front Panel Figure 5 2 DMD2050E Rear Panel Figure 5 3 DMD2050E Rear Panel Configurations...

Страница 191: ...ssis ground connector 10 32 threaded stud is adjacent to the power connector CAUTION CORRECT GROUNDING PROTECTION REQUIRED Always make sure the ground stud on the rear panel of the unit is connected t...

Страница 192: ...or GC283 Connect a hand held PC to the Key Loader Interface to upload the Shared Message Authentication Token SMAT to the modem See the MN DMD2050E TKL manual for more information Table 5 2 Pinouts fo...

Страница 193: ...llowed ETHERNET 10 100 1000 DATA INTERFACE JS2 Ethernet Data Interface Port RJ45 10 100 1000 Base T 1 Allows Auto Crossover and Auto Sensing Table 5 3 Pinouts for J1 HSSI 50 Pin SCSI 2 Connector Pin N...

Страница 194: ...J12 J13 J14 Label Description Connector Type IF Frequencies Programmable in 1 Hz steps Power Levels Programmable in 0 1 dBm steps TX IF J11 Transmit IF Output Port 50 Ohm Female TNC 70 140 MHz IF 50...

Страница 195: ...rection 2 Mod Fault NC MF NC No Direction 3 Mod Fault NO MF NO No Direction 4 Demod Fault C DF C No Direction 5 Demod Fault NC DF NC No Direction 6 Demod Fault NO DF NO No Direction 7 Prompt C CEF C N...

Страница 196: ...mary of either x All major and minor alarms x All minor alarms Use the General menu Baseband Relays to configure this operation 5 3 4 3 RTS Carrier Alarms Configuration RTS Carrier Alarms Pins 10 thro...

Страница 197: ...terface Port 9 pin Female D Table 5 5 Pinouts for J17 ASYNC Port 9 pin Female D Connector Pin No Signal Name Signal Direction 1 Receive Data B RXD_B Output 2 Receive Data A RXD_A Output 3 Transmit Dat...

Страница 198: ...S A Output 6 Data Mode A DM A Output 7 Signal Ground SGND 8 Receiver Ready A RR A Output 9 Receive Timing B RT B Output 10 Receiver Ready B RR B Output 11 Terminal Timing B TT B Input 12 Send Timing B...

Страница 199: ...ERNET J21 Ethernet Monitor and Control Port Female RJ 45 Table 5 7 Pinouts for J20 REMOTE Port RS 485 or RS 232 9 pin Female D Connector Pin No Signal Name Signal Direction 1 Transmit Data RS 485 TX 4...

Страница 200: ...with local and national regulations 6 1 2 Clock Adjustment Adjust the clock only when an internal clock source is not accurate Adjust internal VCO speed from the front panel 6 1 3 Fuse Replacement CAU...

Страница 201: ...unit does not correct the problem examine the power supply and electrical wiring for problems 6 2 2 Troubleshooting Symptoms and Causes 6 2 2 1 Symptom The modem does not acquire the incoming carrier...

Страница 202: ...PLL The Tx L Band Synthesizer is not locked This alarm flashes on during certain parameter changes If the alarm is on constantly there is a configuration problem within the modem Pass Fail Unmasked M...

Страница 203: ...able or enable forcing of the Rx summary alarm DISABLED ENABLED Ethernet WAN The WAN Port is not operating Pass Fail Unmasked Masked 6 3 3 Minor Tx Alarms Alarm Description Status TERR CLK ACT No Terr...

Страница 204: ...il Unmasked Masked SAT AIS AIS is detected in the receive satellite data stream Pass Fail Unmasked Masked DnI FRAME LOCK Drop insert data is frame locked Pass Fail Unmasked Masked DnI M FRAME LOCK Dro...

Страница 205: ...is valid in T1 ESF T1D4 or SCL 96 Modes E1 FAS E1 Frame Acquisition Sync An E1 FAS Fault occurred This is valid in PCM 30 or PCM 30C PCM 31 or PCM 31C Modes E1 MFAS E1 Multi Frame Acquisition Sync An...

Страница 206: ...ide the modem Pass Fail Unmasked Masked 20V SUPPLY Shows the measured voltage of the 20 Volt power bus inside the modem Pass Fail Unmasked Masked EXT CLOCK ACT The External Clock is not active Pass Fa...

Страница 207: ...hen an alarm is masked the front panel LEDs and the Fault Relays are not activated but the Alarm is shown in the display 6 4 1 Active Alarms 6 4 1 1 Major Alarms If a major alarm is on constantly the...

Страница 208: ...hed Alarms Latched alarms are used for intermittent failures If a fault occurs the fault indication is latched even if the alarm goes away After the unit is configured and operating correctly clear an...

Страница 209: ...FRAME LOCK ETHERNET WAN INSERT CRC T1 E1 SIGNALING IFEC LOCK TPC CONFLICT CHK OFEC LOCK INTERLEAVER RS UNCORR WORD EBNO RX AGC LEVEL IBS BER RX DVB FRM LOCK EMBEDDED CHAN COMMON menu Pass Fail VOLTAGE...

Страница 210: ...the alarms TRANSMITTED TO the distant satellite end IDR1 SAT CNTRL STNDRD FRC ON FRC OFF STNDRD Set Alarm functions in a normal configuration FRC ON Forces an ON alarm status that is transmitted to th...

Страница 211: ...NFAS TSO Yellow Alarm AD1 AIS in Relevant TSs FA4 Loss of Terrestrial Multiframe AS1 IBS Prompt Alarm AH2 1 in Bit 3 of NFAS TSO Yellow Alarm AD3 1111 in Relevant TS16s FA5 BER of 1x 10 3 or Greater o...

Страница 212: ...F 1 5 1 L Band 2 0 1 Output Power 0 to 40 dBm Output Stability IF 0 5 dB Over Frequency and Temperature L Band 5 dB Over Frequency and Temperature Output Spectrum Selectable Meets MIL 188 165A B or IE...

Страница 213: ...mon Data Clock Source Internal External Rx Recovered Internal Stability 5 x 10 8 7 2 Demodulator Demodulator Specifications Demodulation BPSK QPSK OQPSK 8 PSK 8 QAM 16 QAM 16 APSK IF Tuning Range 50 t...

Страница 214: ...NAG Turbo 16 APSK 1 2 2 3 3 4 7 8 19 20 None Decoder Options Reed Solomon INTELSAT DVB Optional Custom N K Reed Solomon Descrambler OM 73 CCITT V 35 or IBS Sweep Range Programmable 1 kHz to 255 kHz Re...

Страница 215: ...I Serial 50 Pin SCSI 2 Type Connector Female Ethernet Data Interface One RJ 45 Auto Crossover Auto Sensing 10 100 1000 Ethernet Data Ports Complies with IEEE 802 3 and IEEE 802 3u 7 8 Key loader inter...

Страница 216: ...64000 29730647 BPSK EBEM TURBO 2 3 64000 39560865 BPSK EBEM TURBO 3 4 64000 44455732 BPSK EBEM TURBO 7 8 64000 51783601 BPSK EBEM TURBO 19 20 64000 52000000 QPSK NONE 9600 20000000 QPSK VIT 1 2 4800...

Страница 217: ...3 4 40000 20000000 8 PSK TPC 7 8 48000 20000000 8 PSK LDPC 2 3 36000 20000000 8 PSK LDPC 3 4 40500 20000000 8 PSK EBEM TURBO 1 2 256000 44455732 8 PSK EBEM TURBO 2 3 256000 52000000 8 PSK EBEM TURBO 3...

Страница 218: ...K VIT 7 8 187 Mode 3850 8020833 BPSK 188 Mode 3871 8063725 BPSK 204 Mode 4200 8750000 QPSK VIT 1 2 187 Mode 4400 9166666 QPSK 188 Mode 4424 9215686 QPSK 204 Mode 4800 10000000 QPSK VIT 2 3 187 Mode 58...

Страница 219: ...Mode Min Data Rate Max Data Rate 8 PSK TRE 8 9 187 Mode 11550 20000000 8 PSK 188 Mode 11797 20000000 8 PSK 204 Mode 12800 20000000 16 QAM TRE 3 4 187 Mode 13200 20000000 16 QAM 188 Mode 13271 20000000...

Страница 220: ...DMD2050E B O QPSK BER Performance Viterbi Note Eb No values include the effect of using differential decoding and v 35 descrambling 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10...

Страница 221: ...QPSK BER Performance Sequential Note Eb No values include the effect of using differential decoding and v 35 descrambling 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER...

Страница 222: ...0E B O QPSK BER Performance Viterbi with Reed Solomon Note Eb No values include the effect of using differential decoding 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER...

Страница 223: ...4 DMD2050E B O QPSK BER Performance Turbo Note Eb No values include the effect of using interleaving and maximum iterations 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 B...

Страница 224: ...7 5 DMD2050E 8PSK BER Performance Trellis Note Eb No values include the effect of using differential decoding and v 35 descrambling 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10...

Страница 225: ...8PSK Turbo Figure 7 6 DMD2050E 8PSK BER Performance Turbo Note Eb No values include the effect of using interleaving and maximum iterations 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6...

Страница 226: ...7 DMD2050E 16QAM BER Performance Viterbi Note Eb No values include the effect of using differential decoding and v 35 descrambling 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10...

Страница 227: ...8 DMD2050E 16QAM BER Performance Viterbi with Reed Solomon Note Eb No values include the effect of using differential decoding 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12...

Страница 228: ...M Turbo Figure 7 9 DMD2050E 16QAM BER Performance Turbo Note Eb No values include the effect of using interleaving and maximum iterations 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8...

Страница 229: ...BER Performance OQPSK Turbo Figure 7 10 DMD2050E OQPSK BER Performance Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB Turbo Decoder Specification 1 2...

Страница 230: ...19 7 12 11 BER Performance BPSK Turbo Figure 7 11 DMD2050E BPSK BER Performance Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB Turbo Decoder Specifica...

Страница 231: ...2 7 20 7 12 12 BER Performance 8PSK Turbo Figure 7 12 DMD2050E 8PSK BER Performance Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB Turbo Decoder Speci...

Страница 232: ...1 7 12 13 BER Performance 16QAM Turbo Figure 7 13 DMD2050E 16QAM BER Performance Turbo 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 BER Eb No in dB Turbo Decoder...

Страница 233: ...B O QPSK BER Performance LDPC Figure 7 14 DMD2050E B O QPSK BER Performance LDPC 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB LDPC Decoder Typical Performa...

Страница 234: ...BER Performance LDPC Figure 7 15 DMD2050E 8PSK 8QAM BER Performance LDPC 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB LDPC Decoder Typical Performance 8PS...

Страница 235: ...0E Revision 2 7 24 7 12 16 16QAM BER Performance LDPC Figure 7 16 DMD2050E 16QAM BER Performance LDPC 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB LDPC Dec...

Страница 236: ...B O QPSK MILSTD 188 165B or STANAG Turbo Note Eb No to Bit Error Ratio 77values based on 16k block size 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB MILST...

Страница 237: ...ce 8 PSK MILSTD 188 165B or STANAG Turbo Note Eb No to Bit Error Ratio 77values based on 16k block size 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB MILSTD...

Страница 238: ...ance 16APSK MILSTD 188 165B or STANAG Note Eb No to Bit Error Ratio 77values based on 16k block size 1E 9 1E 8 1E 7 1E 6 1E 5 1E 4 1E 3 1E 2 1E 1 0 1 2 3 4 5 6 7 8 9 10 11 12 BER Eb No in dB MILSTD 18...

Страница 239: ...dB 1E 4 5 2 dB 5 7 dB 6 4 dB 4 7 dB 5 2 dB 5 9 dB 1E 5 5 6 dB 6 1 dB 6 9 dB 5 1 dB 5 6 dB 6 4 dB 1E 6 5 9 dB 6 5 dB 7 4 dB 5 4 dB 6 1 dB 6 9 dB 1E 7 6 3 dB 7 dB 7 9 dB 5 8 dB 6 5 dB 7 4 dB 1E 8 6 7 dB...

Страница 240: ...e w RS 2 3 Rate 2 3 Rate w RS 1E 3 6 3 dB 5 8 dB 4 8 dB 4 9 dB 1E 4 7 3 dB 6 1 dB 5 6 dB 5 1 dB 1E 5 8 2 dB 6 3 dB 6 4 dB 5 4 dB 1E 6 9 dB 6 5 dB 7 2 dB 5 6 dB 1E 7 9 8 dB 6 7 dB 8 1 dB 5 8 dB 1E 8 10...

Страница 241: ...nce Viterbi Typical BER 3 4 Rate 7 8 Rate 3 4 Rate 7 8 Rate 1E 3 8 4 dB 9 8 dB 7 8 dB 9 3 dB 1E 4 8 6 dB 8 1 dB 8 1 dB 9 6 dB 1E 5 8 9 dB 8 3 dB 8 3 dB 9 9 dB 1E 6 9 1 dB 8 6 dB 8 6 dB 10 2 dB 1E 7 9...

Страница 242: ...dB 2 5 dB 2 6 dB 1E 7 2 9 dB 3 1 dB 2 7 dB 2 8 dB 1E 8 3 1 dB 3 3 dB 2 9 dB 3 dB BER Table 7 11 BPSK BER Performance Turbo Specification Typical 3 4 Rate 7 8 Rate 3 4 Rate 7 8 Rate 1E 3 5 6 dB 6 7 dB...

Страница 243: ...3 85 dB 4 65 dB 6 3 dB 1 6 dB 2 4 dB 3 2 dB 3 8 dB 5 7 dB 1E 8 2 3 dB 3 2 dB 3 9 dB 4 7 dB 6 4 dB 1 7 dB 2 5 dB 3 3 dB 3 9 dB 5 8 dB 1E 9 2 4 dB 3 25 dB 3 95 dB 4 75 dB 6 5 dB 1E 10 2 4 dB 3 3 dB 4 dB...

Страница 244: ...Block Typical 4K Block BER Specification 1K Block Typical 1K Block Table 7 18 8PSK BER Performance MILSTD 188 165B or STANAG Turbo BER Specification 16K Block Typical 16K Block 1 2 Rate 2 3 Rate 3 4...

Страница 245: ...cal Specifications MN DMD2050E Revision 2 7 34 7 13 AGC Output Voltage The AGC Output Voltage is a function of the Input Power Level in dBm The AGC Output Voltage is found on the Alarm connector Pin 1...

Страница 246: ...put Power Source DoubleTalk Carrier in Carrier CnC Allows for an optional CnC upgrade A 2 Custom Options Custom options are available for the DMD2050E Get most custom options through firmware and soft...

Страница 247: ...DMD2050E Universal Satellite Modem Product Options MN DMD2050E Revision 2 A 2 BLANK PAGE...

Страница 248: ...Required Equipment The unit is shipped fully assembled Do not remove the covers when you install the unit B 3 Procedures Whether you are demonstrating or installing upgrades the procedures are similar...

Страница 249: ...to the UPGRADE LIST Menu 6 Scroll through the list of features and options 7 Record the items you want to upgrade Option Status Description INSTALLED The option is already available in the feature set...

Страница 250: ...ID 6 Record the Unit ID B 3 3 Order the Demonstration or the Upgrade Contact Comtech to order the demonstration or the upgrade Record the 12 digit code that Comtech gives you This code operates only...

Страница 251: ...Press to show the Unit ID 6 Press ENTER to start data entry The cursor flashes to show that data entry is available 7 Use the numeric keys to enter the new code 8 Press ENTER to accept the data NOTE I...

Страница 252: ...ST MODE LEDs flash when the unit is operating in demonstration mode The flashing occurs even if the unit is in a test mode where the LED light is normally on constantly FEATURES Menu On the FEATURES m...

Страница 253: ...a new code to start a new demonstration Use the front panel to cancel the demonstration mode 1 Go to the MAIN Menu 2 Go to the SYSTEM Menu 3 Go to the HW FW CONFIG Menu 4 Go to the FEATURES Menu The l...

Страница 254: ...d Changes to Programming The carrier states affect how the modulator output restarts after you change the modulator output and satellite footprint NOTE The interface front panel or terminal also affec...

Страница 255: ...The carrier state stays OFF until you confirm the change C 3 2 Carrier ON The carrier state is Carrier ON You change the modulator output and the satellite footprint If you use the front panel to mak...

Страница 256: ...output starts again automatically If you use a terminal to make the change 1 The output is stopped automatically 2 You restart the output C 3 5 CARRIER RTS The carrier state is Carrier RTS You change...

Страница 257: ...DMD2050E Universal Satellite Modem Carrier Control MN DMD2050E Revision 2 C 4 BLANK PAGE...

Страница 258: ...meters and functions of these connected units To find out if the unit has the Web interface use the front panel SYSTEM control screen and make sure that you can see the WEB submenu If you do not see t...

Страница 259: ...essible To use an alternate IP address change the BOOT MODE to NON VOL You can program NON VOL to any valid IP address D 3 Web Interface Security Access rights and authentication parameters are stored...

Страница 260: ...ss Operators monitor and control modem parameters and change their own authentication passwords ADMIN Full Access Administrators monitor and control modem parameters change any user s name and authent...

Страница 261: ...to delete the characters 5 Use the direction buttons and numeric keys to enter the new User ID 6 Press ENTER to save the change D 1 2 Edit the Access Group 1 Select ACCESS GROUP 2 Press ENTER 3 Press...

Страница 262: ...ng fields will be displayed a ACCESS GROUP This will allow the assignment of No Group ADMIN OPER or GUEST to USER 1 b AUTH PASSWORD This will allow for the entry of the password for USER 1 c USER RESE...

Страница 263: ...pment Website Once you know that the modem is accessible through the internet do these steps 1 Start the internet browser 2 Type the modem s IP address in the address field and then press Enter The WE...

Страница 264: ...e Comtech EF Data website and customer service pages D 4 1 Log in to the Equipment Website You must log in before you can go to other pages in the website The login controls your access to resources a...

Страница 265: ...front panel alarm status of the modem This display is updated immediately any time the status changes Figure D 3 Monitor and Control Web Page The navigation tabs correspond to the front panel top lev...

Страница 266: ...w is active the color of the button is blue If Compatibility View is active the Monitor Control window should be displayed correctly D 6 2 Configure Firefox for the Radyne WEB Interface On the Monitor...

Страница 267: ...te Modem Web Browser Setup Guide MN DMD2050E Revision 2 D 10 D 6 2 1 Change the encoding Click View on the Firefox menu bar Select Character Encoding and click Western ISO 8859 1 The page refreshes an...

Страница 268: ...he link to the add on is https addons mozilla org en US firefox addon ie tab 2 ff 36 Download and install IE Tab V2 After IE Tab V2 is installed Firefox restarts Go to Tools IE Tab 2 Options and add t...

Страница 269: ...ailable Click the Chrome address bar Make sure the full address is highlighted and then press Enter The Monitor Control window opens On the Monitor Control Password Setup or IP Administration windows...

Страница 270: ...etup Guide MN DMD2050E Revision 2 D 13 D 6 3 1 Change the encoding On the Chrome address bar click the wrench icon Customize and Control Google Chrome Go to Tools Encoding and click Western ISO 8859 1...

Страница 271: ...ou open WEB browser pages in Internet Explorer 7 mode The link to install IE Tab is https chrome google com webstore search IE 20Tab utm_source chrome ntp icon To install IE Tab click ADD TO CHROME ne...

Страница 272: ...4 1 Empty the browser cache On the Safari menu bar click Edit and then click Empty Cache Click Empty on the confirmation popup window After the browser cache is empty open the Monitor Control page CAU...

Страница 273: ...he Modem IP Address Re entering the Modem IP Address avoids traffic disruption D 6 4 3 Re enter the Modem IP address 1 Go to SYSTEM TCP IP MODEM IP ADDR 2 Press ENTER 3 Type the new IP Address and pre...

Страница 274: ...MD2050E Revision 2 D 17 On the Monitor Control Password Setup or IP Administration windows some fields may be blank or contain Update To correct the display change the encoding NOTE If you leave a win...

Страница 275: ...wser Setup Guide MN DMD2050E Revision 2 D 18 D 6 4 4 Change the encoding Click View on the Safari menu bar Select Text Encoding and click Western European The Default selection is not applicable The p...

Страница 276: ...on for the Radyne WEB Browser On the Monitor Control Password Setup or IP Administration windows some fields may be blank or contain Update To correct the display either 1 change the browser mode or 2...

Страница 277: ...Guide MN DMD2050E Revision 2 D 20 D 6 5 1 Change the browser mode Two browser modes are possible Ultra Mode default Retro Mode Click the browser mode icon at the right of the address bar Select Retro...

Страница 278: ...p Guide MN DMD2050E Revision 2 D 21 D 6 5 2 Change the encoding On the Monitor Control page right click to open the browser menu Select Encoding and then click the encoding type that is already select...

Страница 279: ...DMD2050E Universal Satellite Modem Web Browser Setup Guide MN DMD2050E Revision 2 D 22 BLANK PAGE...

Страница 280: ...f each other The Drop function lets you select the timeslots that are dropped for transmission over the link in the specified satellite channels The Insert function lets you select the timeslots into...

Страница 281: ...the TX Baseband Processor extracts the selected timeslots from the G 704 Frame and prepares them for transmission The original trunk data is sent out of the modem unaltered via the Send Data Out SDO P...

Страница 282: ...DMD2050E Universal Satellite Modem Efficient Drop and Insert MN DMD2050E Revision 2 E 3 Figure E 1 Looped Modems Figure E 2 Looped Modems with Separate D I Trunks...

Страница 283: ...nction If framed terrestrial E1 or T1 Data is available it should be input via the Insert Data In Port The Terrestrial Data is buffered inside the Modem The RX Baseband Processor inserts satellite dat...

Страница 284: ...DMD2050E Universal Satellite Modem Efficient Drop and Insert MN DMD2050E Revision 2 E 5 Figure E 4 Insert Only with Eternal Frame Source Figure E 5 Insert Only with Internal Frame Source...

Страница 285: ...t select timeslot 16 as a Drop or Insert Timeslot E 4 3 2 PCM 30C The PCM 30C Mode of Operation supports an E1 Interface with Multiframe Alignment MFAS and Channel Associated Signaling CAS In addition...

Страница 286: ...tervention and is transparent to the user E 4 3 6 T1 ESF T1 ESF S The T1 ESF Mode of Operation supports a T1 Interface with 24 frames per multiframe The CRC 6 checksum is automatically checked by the...

Страница 287: ...E 8 SATCh TS Enter to Edit Any changes made in these displays are made on the screen but are not entered into the modem Once these menus are configured the Mapping Menu must be used to actually enter...

Страница 288: ...are actually entered into the modem To do this perform the following steps For the Transmit Side 1 Push ENTER to get the flashing cursor 2 Use the Up Arrow Key to make the left portion of the display...

Страница 289: ...nt Tx Settings to the Tx Channel Timeslot Display 4 For the Rx Side Map Copy RX ACTIVE RX EDIT 5 Press ENTER The modem has now copied the current Rx Settings to the Rx Channel Timeslot display IMPORTA...

Страница 290: ...ta rate set to 1920000 bps will result in the error message INVALID INSERT MODE and the selection will not be allowed x Once D I Mode has been selected trying to change the data rate to something othe...

Страница 291: ...E 5 3 Terrestrial Framing Drop Mode Insert Mode The Drop Mode Selection and the Insert Mode Selection identify the Terrestrial Data Framing Format As previously mentioned their selection is influenced...

Страница 292: ...tempts to select a different buffer clock will result in the error message INVALID BUFFER CLOCK and the selection will not be allowed When the Insert Terrestrial Frame Source selection is set to Inter...

Страница 293: ...0 Set Conv Enc 3 4 Rate VIT Under Modulator Set Network Spec Drop and Insert Under Interface Under TX Setup Set Tx Type according to your hardware configuration example G703BT1B8ZS Set Tx Clock SCTE U...

Страница 294: ...strial Slots Use Map Copy to copy Rx Edit to Rx Active Under Demodulator Under Demod IF Set Frequency to desired value Under Demodulator Set Network Spec Drop and Insert Example 2 Multidestinational R...

Страница 295: ...e SATCh TS edit capability to define proper mapping of Satellite Channels to insert Terrestrial Slots For Satellite Channels that are not to be inserted enter NI No Insert for the Terrestrial Slot Use...

Страница 296: ...DMD2050E Universal Satellite Modem Efficient Drop and Insert MN DMD2050E Revision 2 E 17 E 5 4 1 D I Clock Setup Examples Figure E 7 Transmit Trunk and Receive Trunk Figure E 8 Single Truck...

Страница 297: ...DMD2050E Universal Satellite Modem Efficient Drop and Insert MN DMD2050E Revision 2 E 18 Figure E 9 Rx Only With Trunk Figure E 10 Rx Only No Trunk...

Страница 298: ...ies which are enough to define the channel assignments for a T1 24 channel or E1 30 channel frame structure Maps that are created are stored in non volatile battery backed up memory within the modem a...

Страница 299: ...7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 6 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 8 1 2 3 4 5 6 7 8...

Страница 300: ...be in any order within the constraints of the number of available channels For example ROM Map 1 could be used as the template for an Active Transmit Drop Map within a modulator configured for 64 Kbps...

Страница 301: ...n E1 frame the first eight entries of the Active Receive map should contain 17 18 19 20 21 22 23 and 24 ROM Map 6 could be used as the template for an Active Transmit Drop and or Active Receive Insert...

Страница 302: ...Drop and or Active Receive Insert Map with a modulator and or demodulator configured for 1920 Kbps operation However this mapping would be relevant with E1 frames where time slot 16 is used for the mu...

Страница 303: ...e hardware and or feature set upgrade If your modem has the appropriate hardware but the software revision is prior to AY you will need to download the latest modem firmware from the Comtech FTP websi...

Страница 304: ...unctionality available with efficient Drop and Insert MODULATOR or DEMODULATOR NETWORK SPEC CLOSED NET Efficient Drop and Insert is a Closed Network selection SAT FRAMING EFFICIENT D I The satellite f...

Страница 305: ...he basic rate E 9 2 Calculating the Basic Efficient D I Rate When E1 signaling is not required all T1 and PCM31 cases and Enhanced Async is not enabled the Earth Station to Earth station link is the s...

Страница 306: ...s further illustrate how to calculate the Efficient D I rate which can be summarized for N timeslots as Efficient D I Rate Data Rate N 250 bps With E1 signaling add N 2000 bps With Enhanced Async add...

Страница 307: ...bps 642500 bps The Open Network rate is over 40 000 bps higher at 682667 bps Example 2b Change to E1 PCM30 framing E1 Signaling standard ES to ES overhead Add 10 2000 bps to our previous calculation...

Страница 308: ...ayed Each unit requires proper configuration with the correct network settings IMPORTANT Before you set any IP address contact the IT authority in your organization for help Enter into the TCP IP menu...

Страница 309: ...55 255 255 000 MODEM IP ADDR 192 168 000 238 SERVER IP ADDR 192 168 000 101 ROUTER IP ADDR 192 168 000 102 2 BOOT SERVER TAG This allows for the selection of the operating boot tag when operating in t...

Страница 310: ...the Modem Unit Ethernet Address The Modem Ethernet Address is configured at the factory It is a unique Radyne equipment identifier Address Example 0010650903EB 9 ETHER RATE This displays the current...

Страница 311: ...irectly to a Computer without a Network The user can directly connect to the equipment without connecting to a network This will often occur at remote sites where a network is not available To connect...

Страница 312: ...work Connections 4 Select Local Area Connection for the applicable Ethernet adapter Typically it is the first Local Area Connection listed 5 Double click Local Area Connection 6 Click Properties Local...

Страница 313: ...equipment IP address by at least 5 digits The computer and the equipment cannot use the same address 11 Enter a Subnet Mask This must be the same subnet mask that is programmed into the equipment 12...

Страница 314: ...soft Corp 2 At the Command Prompt Enter ping 172 18 100 215 Enter the IP Address of the equipment to be tested The screen will display Microsoft Windows XP Version 5 1 2600 C Copyright 1985 2001 Micro...

Страница 315: ...st timed out Request timed out Request timed out Ping statistics for 172 18 100 215 Packets Sent 4 Received 0 Lost 4 100 loss Check the following items that may lead to the unsuccessful response a Ver...

Страница 316: ...n be set to operate on either or both directions of a link but always require a bi directional channel Enabling AUPC on one side of the link will activate AUPC on the distant end of the link It is nec...

Страница 317: ...es of the basic EF AUPC Operations are described as follows Assume that the two modems one at each end of the link are set to AUPC operation Only one direction is discussed but the same functions coul...

Страница 318: ...n either or both directions of a link but always require a bi directional channel operating in EBEM Mode Enabling AUPC on one side of the link will activate AUPC on the distant end of the link It is n...

Страница 319: ...ed Es N0 where no action is taken TRACKING RATE 6 0 to 0 5 dB MIN Adjustable in 5dB increments LOCAL CL ACTION HOLD MAXIMUM NOMINAL Allows user to determine what power setting the remote modem will us...

Страница 320: ...s Under the Interface Menu Under the Tx Setup Menu Set the Terrestrial Interface to Ethernet Set the Ethernet Flow Control as desired Set the Ethernet Daisy Chain as desired Set the Ethernet QOS Type...

Страница 321: ...ntrol In half duplex mode the unit uses industry standard backpressure to support flow control as follows When available buffer space is almost gone the modem will force a collision on the input port...

Страница 322: ...the highest priority x Port 2 JS2 has the second highest priority x Port 3 JS3 has the second lowest priority x Port 4 JS4 has the lowest priority H 1 4 Ethernet QOS Queue When Fair Weighted queuing...

Страница 323: ...the Ethernet interface operate in a FIFO like manner with no reordering of packets This can be established by using a single port on the Ethernet interface and setting the Ethernet QOS Type to Port Ba...

Страница 324: ...e following status is available under the Monitor Menu Link Status Sub Menu when the Ethernet Data Interface is selected Port 1 Status Displays the current status of LAN Port 1 Port 2 Status Displays...

Страница 325: ...DMD2050E Universal Satellite Modem Ethernet Data Interface Setup MN DMD2050E Revision 2 H 6 BLANK PAGE...

Страница 326: ...modem is automatically configured for the code s corresponding data rate overhead code rate framing scrambler type and modulation I 1 1 An example of how to set a strap code Example At the Front Panel...

Страница 327: ...is QPSK CNT 16 1544 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 32 2048 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 64 6312 96K 3 4 VIT IDR V 35 IESS Dis Dis QPSK IDR 128 8448 96K 3 4 VIT IDR V 35 IESS...

Страница 328: ...is Dis QPSK CNT 28 2048 1 3 4 VIT NONE V 35 IESS Dis Dis QPSK CNT 37 2368 1 1 2 VIT NONE V 35 IESS Dis Dis QPSK CNT 38 2368 1 3 4 VIT NONE V 35 IESS Dis Dis QPSK CNT 41 48 1 1 2 VIT NONE V 35 IESS Dis...

Страница 329: ...s Dis QPSK CNT 196 896 16 15 1 2 VIT IBS IBS Dis Dis QPSK CNT 208 896 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 224 960 16 15 1 2 VIT IBS IBS Dis Dis QPSK CNT 15 960 16 15 3 4 VIT IBS IBS Dis Dis QPSK CN...

Страница 330: ...IBS IBS Dis Dis QPSK CNT 99 1792 16 15 3 4 VIT IBS IBS Dis Dis QPSK CNT 101 2048 16 15 3 4 VIT IBS IBS Dis Dis QPSK IBS 102 1856 16 15 1 2 VIT IBS IBS Dis Dis QPSK CNT 105 1856 16 15 3 4 VIT IBS IBS...

Страница 331: ...Rate Allowable Combinations Mode Rate Framing IDR 8 448 Mbps 3 4 7 8 Rate FEC 6 312 Mbps 1 2 3 4 7 8 Rate FEC 2 048 Mbps 1 2 3 4 7 8 Rate FEC 1 544 Mbps or Below 1 2 3 4 7 8 Rate FEC IBS 2 048 Mbps or...

Страница 332: ...1 Case 1 IDR 8 448 Mbps 3 4 Rate Viterbi Start with the Data Rate 512 Kbps Modulator Method 1 Under Interface Menu Set Interface type Set Tx clock selection Set mode to IDR Under Mod Data Menu Set cod...

Страница 333: ...Menu Set Interface type Set Buff clock selection Set Buffer Size Set mode to IDR Under Demod IF Menu Set desired Rx frequency Under Demod data Menu Set code rate to 3 4 VIT Set data rate for 8448000...

Страница 334: ...enu Set Interface type Set Tx clock selection Set Framing to 1 15 Set mode to IBS Under Mod Data Menu Set code rate to 3 4 VIT Set data rate for 1544000 Under Mod IF Menu Set desired Tx frequency and...

Страница 335: ...g to 1 15 Set mode to IBS Under Demod IF Menu Set desired Rx frequency Under Demod Data Menu Set code rate to 3 4 VIT Set data rate for 1544000 Under Interface Menu Set Interface type Set Buff clock s...

Страница 336: ...1 Under Interface Menu Set Interface type Set Tx clock selection Set mode to IDR Under Mod Data Menu Set code rate to 3 4 VIT Set Framing for 1 15 Under Mod IF Menu Set desired Tx frequency and power...

Страница 337: ...t Buff clock selection Set Buffer Size Set mode to Closed Net Under Demod IF Menu Set desired Rx frequency Under Demod data Menu Set code rate to 3 4 VIT Set Framing for 1 15 Method 2 Under Interface...

Страница 338: ...e 4 Loop Timing Example Method 1 Under Interface Menu Under Tx Setup Menu Set INTF to RS 422 Set SCT Source to SCR Set Tx Clock to SCTE Set mode to IBS Method 2 Under Interface Menu Under Tx Setup Men...

Страница 339: ...DMD2050E Universal Satellite Modem Strap Codes MN DMD2050E Revision 2 I 14 BLANK PAGE...

Страница 340: ...ade margin into increased link capacity gains of 100 or more are possible compared to traditional static FDMA links This is accomplished by automatically adapting the modulation type and FEC code rate...

Страница 341: ...ons of the terrestrial interface that is selected for use in the DMD2050E configuration x ITA can only be enabled when the DMD2050E is operating in the EBEM mode x Operation of ITA and AUPC are mutual...

Страница 342: ...le J 1 ITA Waveforms and Selection Modulation Code Rate Bits Symbol Typical Eb No Required Es No Selected Test Cases 16APSK 0 95 3 800 10 25 16 05 8PSK 0 95 2 850 9 31 13 86 16APSK 0 875 3 500 8 40 13...

Страница 343: ...ubmenu Setup N A see ITA submenu Setup N A MODULATOR REED SOLOMON ENABLE DISABLE DISABLE ENABLE DISABLE DISABLE DEMODULATOR NETWORK SPEC NETWORK SPEC EBEM NETWORK SPEC EBEM DEMODULATOR IF FREQUENCY MH...

Страница 344: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 5 Figure J 1 Initial Setup DMD2050E Modulator IF...

Страница 345: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 6 Figure J 2 Initial Setup DMD2050E Modulator Data...

Страница 346: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 7 Figure J 3 Initial Setup DMD2050E Modulator ITA...

Страница 347: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 8 Figure J 4 Initial Setup DMD2050E Demodulator IF...

Страница 348: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 9 Figure J 5 Initial Setup DMD2050E Demodulator Data...

Страница 349: ...re J 6 Initial Setup DMD2050E Demodulator ITA At this point verify that both serial traffic and Ethernet traffic is properly passing through the system Enable and setup the ITA function of the modems...

Страница 350: ...A submenu Setup N A MODULATOR REED SOLOMON ENABLE DISABLE DISABLE ENABLE DISABLE DISABLE DEMODULATOR NETWORK SPEC NETWORK SPEC EBEM NETWORK SPEC EBEM DEMODULATOR IF FREQUENCY MHz 142 5 MHz FREQUENCY M...

Страница 351: ...SELECTED SELECTED Used to select the mod code rate QPSK 3 4 NOT SELECTED SELECTED Used to select the mod code rate QPSK 7 8 NOT SELECTED SELECTED Used to select the mod code rate QPSK 19 20 NOT SELECT...

Страница 352: ...3 4 NOT SELECTED SELECTED Used to select the mod code rate QPSK 7 8 NOT SELECTED SELECTED Used to select the mod code rate QPSK 19 20 NOT SELECTED SELECTED Used to select the mod code rate 8PSK 1 2 N...

Страница 353: ...SELECTSED MODULATOR ITA QPSK 1 2 NOT SELECTSED MODULATOR ITA QPSK 2 3 SELECTED MODULATOR ITA QPSK 3 4 NOT SELECTSED MODULATOR ITA QPSK 7 8 NOT SELECTSED MODULATOR ITA QPSK 19 20 NOT SELECTSED MODULAT...

Страница 354: ...D DEMODULATOR ITA QPSK 1 2 NOT SELECTSED DEMODULATOR ITA QPSK 2 3 SELECTED DEMODULATOR ITA QPSK 3 4 NOT SELECTSED DEMODULATOR ITA QPSK 7 8 NOT SELECTSED DEMODULATOR ITA QPSK 19 20 NOT SELECTSED DEMODU...

Страница 355: ...20 NOT SELECTSED MODULATOR ITA QPSK 1 2 NOT SELECTSED MODULATOR ITA QPSK 2 3 SELECTED MODULATOR ITA QPSK 3 4 NOT SELECTSED MODULATOR ITA QPSK 7 8 NOT SELECTSED MODULATOR ITA QPSK 19 20 NOT SELECTSED M...

Страница 356: ...20 NOT SELECTSED MODULATOR ITA QPSK 1 2 NOT SELECTSED MODULATOR ITA QPSK 2 3 SELECTED MODULATOR ITA QPSK 3 4 NOT SELECTSED MODULATOR ITA QPSK 7 8 NOT SELECTSED MODULATOR ITA QPSK 19 20 NOT SELECTSED...

Страница 357: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 18 Figure J 7 Initial Setup DMD2050E Modulator ITA...

Страница 358: ...zero Set the same waveforms in both the TX ITA and RX ITA functions so they match Adjust uplink power to a moderate value of approximately 16 dB C N at 8 3 MSPS On the receiver I suggest setting the m...

Страница 359: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 20 Figure J 9 Initial Setup DMD2050E Modulator ITA Enabled...

Страница 360: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 21 Figure J 10 Initial Setup DMD2050E Demodulator ITA Enabled...

Страница 361: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 22 Figure J 11 DMD2050E I Q for BPSK 2 3...

Страница 362: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 23 Figure J 12 DMD2050E ITA Status for QPSK 2 3...

Страница 363: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 24 Figure J 13 DMD2050E I Q for QPSK 2 3...

Страница 364: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 25 Figure J 14 DMD2050E ITA Status for 16APSK 1 2...

Страница 365: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 26 Figure J 15 DMD2050E I Q for 16APSK 1 2...

Страница 366: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 27 Figure J 16 DMD2050E ITA Status for 8PSK 3 4...

Страница 367: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 28 Figure J 17 DMD2050E I Q for 8PSK 3 4...

Страница 368: ...DMD2050E Universal Satellite Modem ITA Operation MN DMD2050E Revision 2 J 29 Figure J 18 DMD2050E ITA Status for 16APSK 7 8...

Страница 369: ...peration MN DMD2050E Revision 2 J 30 Figure J 19 DMD2050E I Q for 16APSK 7 8 At this point changing the noise source level will dynamically change the selected waveforms You can simulate fades by atte...

Страница 370: ...80 333 2200 FAX 480 333 2161 Comtech EF Data is an AS9100 Rev B ISO9001 2000 Registered Company TRANSEC Module LICENSED SOFTWARE Addendum Part Number AD TRANSEC LICNS Revision 0 This section contains...

Страница 371: ...intent of this section to claim rights or contest your rights to work written entirely by you rather the intent is to exercise the right to control the distribution of derivative or collective works b...

Страница 372: ...bute copies of free software and charge for this service if you wish that you receive source code or can get it if you want it that you can change the software and use pieces of it in new free program...

Страница 373: ...k also fall under Section 6 whether or not they are linked directly with the Library itself 6 As an exception to the Sections above you may also combine or link a work that uses the Library with the L...

Страница 374: ...April 1990 Ty Coon President of Vice That s all there is to it The software libpcap 0 9 4 and tcpdump 3 9 4 have the following license License BSD Redistribution and use in source and binary forms wi...

Страница 375: ...ME THE COST OF ALL NECESSARY SERVICING REPAIR OR CORRECTION IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER OR ANY OTHER PARTY WHO MAY MODIFY AND OR RED...

Страница 376: ...IN AN ACTION OF CONTRACT NEGLIGENCE OR OTHER TORTIOUS ACTION ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE Some code is licensed under a MIT style license to the follow...

Страница 377: ...Licensed Software Revision 0 TRANSEC Module AD TRANSEC LICNS 8 This page is intentionally blank...

Страница 378: ......

Страница 379: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...

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