Comtech EF Data CDM-840 Installation And Operation Manual Download Page 95

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CDM-840 Remote Router

Revision 0

Forward Error Correction

MN-CDM840

6–11

Figure 6-8. VersaFEC Codec – 8-QAM, Rate 0.642, 0.711, and 0.780

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-QAM

Rate

0.642

8-QAM

Typical performance show -

guaranteed performance curves

are 0.3 dB to the right

Uncoded

8-PSK

Rate

0.780

8-QAM

Summary of Contents for CDM-840

Page 1: ...ion contained in this document supersedes all previously published information regarding this product Product specifications are subject to change without prior notice CDM 840 Remote Router Installati...

Page 2: ......

Page 3: ...e Subject Revised Section 4 2 Ethernet FTP Upload Procedure Original Manual Part Number Rev MN CDM840 Rev 0 Errata Number PLM Document ID ER CDM840 EA0 PLM CO Number C14382 Comments Replaces Step 9 on...

Page 4: ...PLM DOC ID ER CDM840 EA0 THIS DOCUMENT IS NOT SUBJECT TO REVISION UPDATE PLM CO C14382 2 OF 2 REVISE Sect 4 2 Ethernet FTP Upload Procedure Step 9 WAS...

Page 5: ...Printed in the USA Comtech EF Data 2114 West 7th Street Tempe Arizona 85281 USA 480 333 2200 FAX 480 333 2161 CDM 840 Remote Router Installation and Operation Manual For Firmware Version 1 1 1 or High...

Page 6: ...This page is intentionally blank...

Page 7: ...ix Trademarks ix Cautions and Warnings x Electrical Safety and Compliance x Fuses x Low Voltage Directive LVD xi Installation xi Environmental xi Telecommunications Terminal Equipment Directive xii C...

Page 8: ...Error Rate 1 10 1 4 2 Regulatory Compliance 1 11 CHAPTER 2 INSTALLATION 2 1 2 1 Unpacking and Inspection 2 1 2 2 Mounting 2 2 2 2 1 Optional Rear Mounting Support Bracket Kit 2 2 CHAPTER 3 REAR PANEL...

Page 9: ...ont Panel 5 5 5 4 4 2 Home Pages 5 6 5 4 4 2 1 Home Home 5 6 5 4 4 2 2 Home Contact 5 7 5 4 4 3 Admin Pages 5 8 5 4 4 3 1 Admin Access 5 8 5 4 4 3 2 Admin SNMP 5 9 5 4 4 3 3 Admin FAST 5 10 5 4 4 3 4...

Page 10: ...4 6 4 CDM 840 Rx Tx Error Performance Characteristics 6 4 APPENDIX A FAST ACTIVATION PROCEDURE A 1 A 1 Introduction A 1 A 2 Activation Procedure via Web Server Interface A 2 A 2 1 View Currently Inst...

Page 11: ...face FE Mgt Page 5 13 Figure 5 9 Configuration Interface GE Page 5 14 Figure 5 10 Configuration Demod page 5 15 Figure 5 11 Configuration Mod page 5 17 Figure 5 12 Configuration ARP page 5 19 Figure 5...

Page 12: ...40 viii Figure 6 6 VersaFEC Codec BPSK Rate 0 488 6 9 Figure 6 7 VersaFEC Codec QPSK Rate 0 533 0 631 0 706 and 0 803 6 10 Figure 6 8 VersaFEC Codec 8 QAM Rate 0 642 0 711 and 0 780 6 11 Figure 6 9 Ve...

Page 13: ...ons and References Metric Conversion Metric conversion information is located on the inside back cover of this manual This information is provided to assist the operator in cross referencing non Metri...

Page 14: ...injury Electrical Safety and Compliance The CDM 840 has been shown to comply with the EN 60950 Safety of Information Technology Equipment Including Electrical Business Machines safety standard The equ...

Page 15: ...de in compliance to local or national wiring codes and regulations The CDM 840 is designed for connection to a power system that has separate ground line and neutral conductors The equipment is not de...

Page 16: ...he following standards Emissions EN 55022 Class B Limits and methods of measurement of radio interference characteristics of Information Technology Equipment Also tested to FCC Part 15 Class B Immunit...

Page 17: ...limited to repair or replacement of failed parts and the return shipment to the buyer of the repaired or replaced parts Limitations of Warranty The warranty does not apply to any part of a product tha...

Page 18: ...urpose The buyer shall pass on to any purchaser lessee or other user of Comtech EF Data Corporation s products the aforementioned warranty and shall indemnify and hold harmless Comtech EF Data Corpora...

Page 19: ...erial Authorization RMA number from the Comtech EF Data Customer Support representative Pack the product in its original shipping carton packaging to ensure that the product is not damaged during ship...

Page 20: ...CDM 840 Remote Router Revision 0 Preface MN CDM840 xvi Notes...

Page 21: ...such as cellular backhaul over satellite Universal Service Obligation USO networks corporate networks Internet Service Providers and other applications requiring high performance IP transport in hub a...

Page 22: ...xample a hub and spoke IP Network The CDM 840 utilizes a high performance processor and a real time operating system RTOS combined with multiple Field Programmable Gate Arrays FPGAs for optimal perfor...

Page 23: ...ms and is compatible with Comtech EF Data s CDD 880 Multi Receiver Router s located at a hub site In the FEC encoder the data is differentially encoded scrambled and then VersaFEC encoded Following th...

Page 24: ...20mm Slow Blo fuse 213 series CDM 840 chassis 1 3 1 3 Optional Hardware 48V DC Primary Input Power Supply 24V DC BUC 90 Watt Power Supply AC Input or DC Input versions 48V DC BUC 150 Watt Power Supply...

Page 25: ...CDM 840 Remote Router Revision 0 Introduction MN CDM840 1 5 1 3 3 Dimensional Envelope Figure 1 3 CDM 840 Dimensional Envelope...

Page 26: ...lected Off There is no Test Mode currently selected TRANSMITTER ON Green The Transmitter Carrier is On Red A Fault exists that causes the unit to turn off the carrier Off The Transmitter Carrier is Of...

Page 27: ...ol 1 3 6 Verification The CDM 840 includes a transmit and receive Bit Error Rate Tester BERT for rapid verification of the correct function of the unit When normal operation is again selected all of t...

Page 28: ...ed into Comtech EF Data products FAST Implementation Comtech EF Data s FAST system is factory implemented in the unit All FAST options are available through the basic platform unit at the time of orde...

Page 29: ...onnectors Impedance Tx Type N 50 Rx Power supply AC 100V to 240V AC 47 63 Hz DC HW Option 48V 36V to 60V DC Transmit Power 0 to 40 dBm BUC Reference 10 MHz 10 0 MHz 0 06 ppm selectable ON OFF 0 0 dBm...

Page 30: ...al value in parentheses 2 8 dB 2 5 dB 3 0 dB 2 7 dB Rate 0 706 QPSK Guaranteed Eb No typical value in parentheses 3 3 dB 3 0 dB 3 7 dB 3 4 dB Rate 0 803 QPSK Guaranteed Eb No typical value in parenthe...

Page 31: ...emote Router Revision 0 Introduction MN CDM840 1 11 1 4 2 Regulatory Compliance CE as follows EN 30489 1 EN 55022 Class B Emissions EN 55024 Immunity EN 60950 Safety FCC FCC Part 15 Class B RoHS Compl...

Page 32: ...CDM 840 Remote Router Revision 0 Introduction MN CDM840 1 12 Notes...

Page 33: ...and checked for normal operation CAUTION Do not use any cutting tool that will extend more than 1 into the container and cause damage to the unit Unpack and inspect the unit as follows Step Descriptio...

Page 34: ...racket kits If there is any doubt please consult the Comtech EF Data Customer Support department 2 2 1 Optional Rear Mounting Support Bracket Kit Install the optional rear mounting support brackets ki...

Page 35: ...Secure the 10 Shoulder Screws through the Adapter Plate mounting slots using the 10 Flat Washers 10 Split Washers and 10 Hex Nuts as shown 3 Install the Rear Support Brackets onto the equipment rack t...

Page 36: ...CDM 840 Remote Router Revision 0 Installation MN CDM840 2 4 Notes...

Page 37: ...te Router shown here in Figure 3 1 provide all necessary external connections between the unit and other equipment Table 3 1 on the next page summarizes the connectors provided on the rear panel inter...

Page 38: ...Redundancy Interface is not operational in this release CONSOLE 9 Pin Type D male Serial Remote Interface EIA 232 Power Ground Sect 3 5 AC See Sect 3 5 1 Chassis power DC See Sect 3 5 2 Chassis power...

Page 39: ...ector RJ 45 This is a standard RJ 45 female modular jack operating at 10 100 1000 Mbps half and full duplex auto negotiating Note The maximum Ethernet packet size is 1522 bytes including Ethernet head...

Page 40: ...ype D male connector It is intended for connection to an M C computer or terminal device and is used for EIA 232 communications Refer to Table 3 2 for pinouts Table 3 2 REMOTE CONSOLE Connector Pinout...

Page 41: ...EC Fuse Protection Line and neutral fusing 2X 20mm Slow blow type fuses T2 5A 2 5A 115V or 230V AC operation without BUC T4A 4 0A 115V or 230V AC operation with BUC 3 5 2 Direct Current DC Power Inter...

Page 42: ...CDM 840 Remote Router Revision 0 Rear Panel Connector and Pinouts MN CDM840 3 6 Notes...

Page 43: ...re 4 1 via E mail or on CD This chapter outlines the complete upgrading process as follows New firmware can be downloaded via the Internet to an external PC The upgrade can be performed without openin...

Page 44: ...ndows Explorer Select File New Folder to create a new folder then rename it from New Folder to temp or another convenient unused name Assuming temp works a c temp folder should now be created Note The...

Page 45: ...iles PKZIP for DOS is not supported due to file naming conventions 4 Extract the files into the temporary folder on the PC At least two files should be extracted Fw0000408x bin where x denotes the bul...

Page 46: ...FTP session by typing bye and closing the Command line window b Verify that the new file loaded either by using the CLI window or Web Server Interface as per the procedures described in Step 1 11 Chan...

Page 47: ...face supports two management protocols SNMP with public and private MIB Web Server HTTP Interface for complete product management 5 2 1 Ethernet Management Interface Access Access to the CDM 840 Ether...

Page 48: ...Description FW10874 2 mib ComtechEFData Root MIB 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...

Page 49: ...to configure and monitor all aspects of the CDM 840 These Web pages have been designed for optimal performance when using Microsoft s Internet Explorer Version 7 0 or higher the examples shown use In...

Page 50: ...he valid User Name and Password are accepted the user will see the CDM 840 Remote Router Web Server Interface splash page similar to the example shown to the right 5 4 3 Web Server Menu Tree The opera...

Page 51: ...ANT Access to and availability of certain CDM 840 Web Server Interface pages are dependent upon the FAST options purchased for operation as well as the detected presence of auxiliary equipment e g Blo...

Page 52: ...ages Click the Home or Contact tab to continue 5 4 4 2 1 Home Home Figure 5 1 CDM 840 Remote Router Home Splash page From any location within the Web Server Interface the user can click the Home top n...

Page 53: ...et Management MN CDM840 5 7 5 4 4 2 2 Home Contact Figure 5 2 Home Contact page The Home Contact page Figure 5 2 provides basic contact information to reach Comtech EF Data Sales and Customer Support...

Page 54: ...inue 5 4 4 3 1 Admin Access Figure 5 3 Admin Access page The Admin Access page Figure 5 3 provides the means to set up the user names and passwords that facilitate access to the CDM 840 Web Server Int...

Page 55: ...is a FUTURE offering at this time and is therefore non functional in this section Otherwise use the provided text boxes to assign the desired SNMP configuration string Note the following An SNMP Read...

Page 56: ...operational status for each available option Each available feature is listed in the Option column When an option is enabled the Status column identifies the option as such along with its operational...

Page 57: ...mware Configuration Using the Boot From drop down menu select Latest Slot 1 or Slot 2 then click Submit when done The default selection is Latest in which the unit will automatically select the image...

Page 58: ...feature enter a value of 1 15 minutes into the Logout Time box Entering a value of 0 disables the Auto Logout feature Once the desired time value has been entered click Submit to save this change 5 4...

Page 59: ...is box the valid range for the Subnet Mask is 8 30 Link Configuration Use the drop down menu to select the line speed and duplex setting for the CDM 840 s FE interface The available options are Auto 1...

Page 60: ...sk is 8 30 Link Configuration Use the drop down menu to select the line speed and duplex setting for the CDM 840 s GE interface The available options are Auto 100 BaseT Full Duplex 10 BaseT Full Duple...

Page 61: ...nge for each item in this section is provided in brackets Data Rate 1000 168000 kbps Enter the data rate in kbps Symbol Rate 1000 62000 ksps Enter the symbol rate in ksps Rx Frequency 950 2150 MHz Ent...

Page 62: ...f the edge falls off more quickly than with 25 and 35 Use the drop down menu to set the expected filter Rx Alpha Rolloff of the carrier as 20 25 or 35 The default selection is 20 Es No Alarm Point 0 1...

Page 63: ...vided in brackets Data Rate 16 15343 kbps Enter the router s Tx Data Rate in kbps Once the desired Tx Data Rate has been set click Submit as needed to save this change Symbol Rate 16 4500 ksps Enter t...

Page 64: ...down menu to select the Tx Carrier State as either Off or On Once the desired configuration settings have been made on this page click Submit as needed to save these changes IMPORTANT DVB S2 original...

Page 65: ...atically increment to the next available number Click Add Entry once all changes have been made in this section Delete Static ARP Enter Entry Index to Delete then click Delete Entry once all changes h...

Page 66: ...made in this section 5 4 4 4 5 Configuration Routing IMPORTANT While the IGMP tab is selectable this functionality is not available in this initial product release The IGMP page is therefore non func...

Page 67: ...on IP Address Mask in the form XXX XXX XXX XXX YY Interf Use the drop down menu to select the Interface as toWAN or toLAN Next Hop IP Enter the desired Next Hop IP Address for toLAN routes note that n...

Page 68: ...gn up to four Generic Stream Encapsulation GSE labels Each label has a valid range of 1 to 2047 Receive WAN Labels Edit the Label 1 through Label 4 text boxes to suit Once the desired labels have been...

Page 69: ...with QoS Control Mode Off b Page with QoS Control Mode Diffserv Figure 5 15 Configuration WAN QoS pages Figure 5 15 displays the Configuration WAN QoS page when QoS Control Mode is set either to Off o...

Page 70: ...CDM 840 Remote Router Revision 0 Ethernet Management MN CDM840 5 24 a Page with QoS Control Mode Max Priority b Page with QoS Control Mode Min Max Figure 5 16 Configuration WAN QoS pages cont...

Page 71: ...tings have been made in this section click Submit as needed to save these changes The Differentiated Services section appears only when QoS Control Mode Diffserv Differentiated Services Priority IP tr...

Page 72: ...the specific rule is identified here Src IP Mask The Source IP Address Mask is displayed here in the form XXX XXX XXX XXX YY Dest IP Mask The Destination IP Address Mask is displayed here in the form...

Page 73: ...Use the drop down menu to assign a Priority level from 1 to 8 for each flow o The IP Module classifies each packet that is to be forwarded over the satellite the packet then has a Priority assigned a...

Page 74: ...own menu to select the BUC Power Supply as either Off or On BUC 10 MHz Reference Enable Use the drop down menu to select the BUC 10 MHz Reference Enable as either Off or On BUC Low Current Limit mA 0...

Page 75: ...e drop down menu to designate the Rx Local Oscillator Frequency as a HIGH or LOW limit LNB DC Power Use the drop down menu to select the power as Off 13V 18V or 24V LNB Reference Enable Use the drop d...

Page 76: ...es IMPORTANT While the Compression tab is selectable this feature is not available in this initial product release The Compression page is therefore non functional Click the Traffic Router or QoS tab...

Page 77: ...imum Recd Mbps Peak received data rate in megabits per second Mod Statistics From left to right Pkts Xmitted Packets transmitted UC Pkts Xmitted Unicast packets transmitted MC Pkts Xmitted Multicast p...

Page 78: ...Router page The Status Statistics Router page Figure 5 20 is used to view cumulative router traffic information Clear Statistics Click Clear to clear all router statistics from the buffer Interface C...

Page 79: ...e with QoS Control Mode Diffserv Figure 5 21 Status Statistics QoS pages Figure 5 21 displays the Status Statistics QoS page when QoS Control Mode is set via the Configuration WAN QoS page see Sect 5...

Page 80: ...22 Status Statistics QoS pages cont For any active configuration note the following Clear QoS Counters Click Clear to clear all router statistics from the buffer QoS Statistics See Section 5 4 4 4 6...

Page 81: ...only section provides the operating temperature of the unit C Click Refresh as needed to update this display Alarms This read only section provides an overall tally of the Unit Tx Rx BUC LNB and Traff...

Page 82: ...5 24 Utility Utility page The Utility Utility page Figure 5 24 provides an array of top level system operation controls configuration storage selection and test utilities Modem Unit Name The product...

Page 83: ...it back into an operational state Tx CW This test mode forces the modulator to transmit a pure carrier unmodulated Tx Alt 1 0 This test mode forces the modulator to transmit a carrier modulated with a...

Page 84: ...hese changes BERT Monitor This read only section displays the ongoing BERT Click Restart to restart the BERT Monitor or Update to refresh a test already in progress 5 4 4 6 2 Utility Reboot page Figur...

Page 85: ...also a concatenated error correction technique LDPC is a very powerful coding scheme with significant Near Shannon Bound Performance In some cases as the carrier to noise ratio increases the LDPC erro...

Page 86: ...Es No instead of Eb No When links operate at a constant symbol rate this is a good method for comparing the performance of different modulation types and code rates The relation between the two quanti...

Page 87: ...code rates and modulation types that link performance can be optimized under almost any conditions The performance of the VersaFEC codes compared with the Shannon bound is shown in Figure 6 1 Note th...

Page 88: ...Mbps 8 QAM 0 780 2 34 6 1k 5 6 dB 97 38 kbps 10 53 Mbps 16 QAM 0 731 2 93 8 2k 6 3 dB 125 47 kbps 13 16 Mbps 16 QAM 0 780 3 12 8 2k 7 0 dB 129 50 kbps 14 04 Mbps 16 QAM 0 829 3 32 8 2k 7 5 dB 131 54 k...

Page 89: ...CDM 840 Remote Router Revision 0 Forward Error Correction MN CDM840 6 5 Figure 6 2 DVB S2 QPSK Packet Error Rate versus Es No QPSK 1 4 1 3 and 2 5 provided for information only...

Page 90: ...CDM 840 Remote Router Revision 0 Forward Error Correction MN CDM840 6 6 Figure 6 3 DVB S2 8PSK Packet Error Rate versus Es No...

Page 91: ...CDM 840 Remote Router Revision 0 Forward Error Correction MN CDM840 6 7 Figure 6 4 DVB S2 16APSK Packet Error Rate versus Es No...

Page 92: ...CDM 840 Remote Router Revision 0 Forward Error Correction MN CDM840 6 8 Figure 6 5 DVB S2 32APSK Packet Error Rate versus Es No...

Page 93: ...C Codec BPSK Rate 0 488 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 Rate...

Page 94: ...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 95: ...0 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 96: ...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 97: ...s have maximum flexibility for enabling functions as they are required FAST allows an operator to order a unit precisely tailored for the initial application When service requirements change the opera...

Page 98: ...section displays the CDM 840 s available FAST Features and the operational status for each available option Each available feature is listed in the Option column When an option is enabled the Status...

Page 99: ...ch EF Data Customer Support will then provide an invoice the 20 digit FAST Access Code and FAST option activation instructions The user should carefully enter the FAST Access Code into the FAST Code 1...

Page 100: ...CDM 840 Remote Router Revision 0 Appendix A MN CDM840 A 4 Notes...

Page 101: ...the Controller device assumed to be a PC or ASCII dumb terminal is connected directly to the Target device i e the CDM 840 via its CONSOLE serial port via a two wire plus ground connection Controller...

Page 102: ...arget Start of Packet Target Address Address Delimiter Instruction Code Code Qualifier Optional Arguments End of Packet ASCII code 60 1 character 4 characters ASCII code 47 1 character 3 characters or...

Page 103: ...essage should it be displayed in its raw ASCII form Only upper case alphabetic characters may be used A Z ASCII codes 65 90 B 4 5 Instruction Code Qualifier This is a single character which further qu...

Page 104: ...the Controller sends an instruction code which the Target does not recognize the Target will acknowledge the message by echoing the invalid instruction followed by the character Example CMD ASCII code...

Page 105: ...queries and to review instructions for using the interface Note the following Column C Command Column Q Query columns marked X designate instruction code as Command only Query only or Command Query C...

Page 106: ...ther restrictions If aaa 191 prefix may not be less than 24 If aaa 127 prefix may not be less than 16 Example IG1 010 006 030 001 24 IG1 IG1 IG1 IG1 IG1 IG1 xxx xxx xxx xxx yy see Description of Argum...

Page 107: ...Auto Negotiate 1 reserved 2 100Mbps Full Duplex 3 100Mbps Half Duplex 4 10Mbps Full Duplex 5 10Mbps Half Duplex MLC MLC MLC MLC MLC MLC x see Description of Arguments Actual Negotiated Port Speed N A...

Page 108: ...CDM 840 Remote Router Revision 0 Appendix B MN CDM840 B 8 Notes...

Page 109: ...3 1 760 x 103 1 609 x 103 1 609 1 mm 0 03937 1 kilometer 0 621 Temperature Conversions Units of Weight Unit Gram Ounce Avoirdupois Ounce Troy Pound Avoirdupois Pound Troy Kilogram 1 gram 0 03527 0 032...

Page 110: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...

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