Comtech EF Data CDM-760

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Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161

CDM-760

CDM-760 Advanced High-Speed Trunking Modem

Installation and Operation Manual

For Firmware Version 1.7.3 or Higher

Part Number MN-CDM760/CD-CDM760

Revision 4

Main Page

Default Chapter8
- Table of Contents8
F Igures20
Tables23
Preface26
About this Manual26
Conventions and References26
- Patents and Trademarks26
- Warnings, Cautions and Notes26
- Recommended Standard Designations27
Safety and Compliance27
- Electrical Safety and Compliance27
- Electrical Installation27
- Operating Environment28
- European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive (1999/5/EC) and en 301 489-128
Product Support30
Comtech EF Data Headquarters30
Warranty Policy31
- Limitations of Warranty31
- Exclusive Remedies31
Chapter 1. Introduction32
Overview32
- Figure 1-1. CDM-760 Advanced High-Speed Trunking Modem32
Features34
- Physical Description34
  - Standard Assemblies34
  - Optional Assemblies34
- Dimensional Envelope35
- Figure 1-2. CDM-760 Dimensional Envelope35
- Physical Features36
- Verification38
- On-Site Firmware Updates39
- On-Site Operational Upgrades39
- Table 1-1. FAST and FAST-Accessible Hardware Options39
- Monitor and Control Interfaces40
Specifications40
- System Specifications40
- Environmental and Physical41
- Base Unit Connectors41
- Test Functions41
- Modulator (Dual IF)41
- Demodulator (Dual IF)42
- Adaptive Coding and Modulation (ACM)46
  - Doubletalk ® Carrier-In-Carrier ® (Cnc)47
- Regulatory Compliance47
Chapter 2. Installation48
Unpack and Inspect the Equipment48
- Figure 2-1. Unpack and Inspect the Shipment48
Install the Unit into a Rack Enclosure49
- Figure 2-2. Install the Unit into a Rack Enclosure50
Chapter 3. Rear Panel Connections54
Cabling Connection Types54
- Coaxial Cable Connections54
- Cable Connections56
- D-Subminiature Cable Connections56
- Figure 3-2. D-Subminiature Connector Examples56
- Table 3-1. CDM-760 Rear Panel Connectors57
- IF Connector Group58
- Utility Connector Group59
- Terrestrial Data Connector Group62
Cabling Connections57
- Figure 3-3. CDM-760 Cabling Connections57
- Figure 3-7. Optional High-Speed Packet Processor57
Ground and Power Connections66
- Chassis Ground Interface66
- Figure 3-8. Chassis Ground Interface66
- 230V Alternating Current (AC) Power Interface (Standard)67
- Direct Current (DC) Power Interface (Optional)69
  - DC Operation - Apply Power69
  - DC Operation - Replace the Fuses70
Chapter 4. Updating Firmware72
Overview72
- Important Considerations before Proceeding72
- About Firmware File Acquisition and Modem Update73
Get Started: Prepare for the Firmware Download74
- Required User-Supplied Items74
Download and Extract the Firmware Update Files78
- Use Windows Desktop to View Folder Contents80
- Use Windows Command-Line to View Folder Contents80
Upload the Firmware Files and Update the CDM-760 Unit81
- Important Considerations81
- Use Windows Command-Line to FTP Upload the Firmware Files (Ethernet-Based Firmware Update Procedure)81
- Use the HTTP Interface to Perform the Ethernet FTP Upload Procedure83
- Select the Updated Firmware for Modem Operation84
- Reboot the Modem85
Chapter 5. Fast Activation Procedure86
FAST Overview86
About FAST Options87
FAST Activation Procedure87
- FAST Activation Using the CDM-760 Front Panel87
- FAST Activation Using the CDM-760 HTTP (Web Server) Interface88
Chapter 6. Front Panel Operation90
Overview90
- LED Indicators91
- Table 6-1. LED Function91
- Keypad92
- Vacuum Fluorescent Display (VFD)92
Front Panel Menus94
- Table 6-2. CDM-760 Front Panel Menus94
Chapter 7. Ethernet Interface Operation168
Introduction168
- Ethernet Management Interface Protocols168
SNMP Interface169
- Management Information Base (MIB) Files169
- SNMP Community Strings169
- SNMP Traps170
Telnet Interface171
- Using Hyperterminal for Telnet Remote Control Operation171
  - Configure Hyperterminal for Telnet Remote Control Operation172
HTTP (Web Server) Interface173
- User Login173
- HTTP Interface - Operational Features174
- HTTP Interface - Menu Tree176
  - Conditional Access to High-Speed Packet Processor177
- HTTP Interface178
  - Home178
    - Home | Home178
    - Home | Contact179
  - Admin (Administration)180
- Admin | Access180
- Admin | SNMP182
- Admin | Upgrade183
- Admin | FAST184
- Configuration185
- Status216
Chapter 8. Serial Interface Operation244
Introduction244
Eia-485245
Remote Commands and Queries Overview246
- Basic Protocol246
- Packet Structure246
Remote Commands and Queries251
- Tx Parameters254
- Rx Parameters257
- IP Packet Parameters260
- Unit Parameters262
- ACM Parameters270
- AUPC Parameters271
- PIIC Interface Parameters272
- Bulk Configuration Strings276
- ODU Parameters279
- Modem Information280
- Modem Performance Indication284
- Redundancy Control288
- Carrier ID289
- Dynamic Predistortion (DPD)290
Appendix A. Obsolete Firmware Ftp Update Procedures292
Overview292
- A.1 Overview292
FW Vers. 1.3.1 / 1.2.1 Ethernet FTP Upload Procedure293
- Prerequisites293
- Procedure293
- Select the Updated Firmware for Modem Operation295
- Reboot the Modem296
FW Ver. 1.1.1 Ethernet FTP Upload Procedure297
- Prerequisites297
- Install and Configure the Filezilla FTP Utility on the User PC298
- Performing the Filezilla-Based FTP Update Procedure300
Appendix B. Es/No Measurement304
- Table B-1. DVBS2, Normal Block, Pilot ON, QEF306
- Table B-2. DVB-S2-EB2/EB-1, Normal Block, Pilot ON, QEF307
Appendix C. Optional Piic (Plug-In Interface Card) Modules310
Overview310
- C.1 Overview310
- C.1.1 PIIC Conditional Availability311
- Typical PIIC Module Installation311
Optional PIIC Modules312
- G.703 E3/T3/STS-1 PIIC Module (CEFD P/N PL-0000795312
  - G.703 E3/T3/STS-1 PIIC Module - Specifications313
    - General Specifications313
    - Interface Specifications313
- Single/Multi Mode PIIC Module Kits (CEFD P/N KT-0000256/257314
  - Single/Multi Mode PIIC Module - Summary of Specifications315
- Copper PIIC Module Kit (CEFD P/N KT-0000255316
  - Copper PIIC Module - Summary of Specifications317
  - C.2.3.1 STM-1 Copper PIIC Module – Summary of Specifications317
- DVB ASI (Asynchronous Serial Interface) PIIC Module (CEFD P/N PL-0022015318
  - DVB ASI (Asynchronous Serial Interface) PIIC Module - Summary of Specifications319
Appendix D. Ethernet Network Configuration320
Overview320
Ethernet Routers and Switches320
- D.1 Overview320
Ethernet Configuration Examples321
- Ethernet Network Overview321
Ethernet Overview322
- Ethernet Interfaces322
- D.4 CDM-760 Ethernet Overview322
- Figure D-3. CDM-760 Switching – Inband "Disabled"323
- Ethernet Overhead324
Data Flow Diagram326
- E.2 Data Flow Diagram326
Appendix E. Ethernet Statistics and Status Reporting326
Overview326
Appendix F. Optional High-Speed Packet Processor330
High-Speed Packet Processor - Introduction330
- High-Speed Packet Processor - Operational Requirements330
  - Major Assemblies330
  - Limitations and Interoperability/Compatibility Considerations331
- High-Speed Packet Processor Field Upgrade331
High-Speed Packet Processor Configuration and Operation338
- Operational Overview338
- Use the CDM-760 Front Panel to Enable Packet Processor Operation339
- F.2.3 CDM-760 Configuration – HTTP (Web Server) Interface341
- F.2.3.1 Conditional Access to High-Speed Packet Processor342
High-Speed Packet Processor Features344
- Modes of Operation344
  - Static Route Configuration344
  - Figure F-6. Point-To-Point Network Example346
- Quality of Service (Qos347
- Header Compression348
- FAST Options348
Appendix G. Adaptive Coding and Modulation (Acm) Option350
Overview350
- G.1 Overview350
Background351
- Table G-1. ACM Example for Standard Fecframe (64,800 Bits351
- G.2 Background351
Table G-2. Modcod Comparison: ACM Vs. CCM352
- ACM Operational Link Example353
- Table G-3. Turning Margin into Additional Capacity354
- Figure G-2. User Throughput Vs. Time and Fades354
ACM System Description355
- Figure G-3. ACM-Over-Satellite – Generic Example356
ACM Scheme358
- Target Es/No Margin358
- G.4 CDM-760 ACM Scheme358
- Distortion Adaptation / Modulation Type Impairment359
- Table G-4. Modulation Type Impairment359
- Table G-5. DVB-S2 Symbol Rate and Data Rate by Modcod in ACM Mode361
- Table G-6. DVB-S2-EB1 Symbol Rate and Data Rate by Modcod in ACM Mode362
- Table G-7. DVB-S2X Symbol Rate and Data Rate by Modcod in ACM Mode363
ACM Configuration and Operation368
- Operational Overview368
- G.5 CDM-760 ACM Configuration and Operation368
- ACM Operation Using the CDM-760 Front Panel369
  - Configure ACM Operation369
  - Monitor ACM Performance and Operation370
- ACM Operation Using the CDM-760 HTTP (Web Server) Interface371
  - Access the CDM-760 HTTP Interface372
- G.5.4 ACM Operation Using the CDM-760 Serial Remote Control Interface378
  - ACM Configuration and Operation Using Serial Remote Control Commands/Queries379
ACM Summary of Specifications380
Appendix H. Carrier ID (Dvb-CID Metacarrier382
Overview382
- About Metacarrier382
- H.1 Overview382
- Functional Description383
Carrier ID Operation384
- Operational Overview384
- H.2 CDM-760 Carrier ID Operation384
- CID Configuration - Front Panel Operation385
- CID Configuration - HTTP (Web Server) Interface388
- H.2.4 CDM-760 CID Configuration – Serial Remote Control391
Appendix J. Doubletalk Carrier-In-Carrier (Cnc) Option394
Overview394
- What Is Doubletalk Carrier-In-Carrier394
- J.1 Overview394
Application Requirements395
- J.2 Application Requirements395
- J.3 Operational Details396
Operational Details396
System Functionality and Operational Considerations397
- Doubletalk Carrier-In-Carrier Cancellation Process399
- Table J-1. Spectral Efficiency Using Doubletalk Carrier-In-Carrier399
Operational References408
- Calculating a Carrier-In-Carrier Link Budget408
- Calculating Cnc Ratio and PSD Ratio from Satmaster411
Doubletalk Carrier-In-Carrier Specifications411
Carrier-In-Carrier Summary411
Glossary412
- J.8 Glossary412
Appendix K. Quality of Service (Qos416
Overview416
Qos Characteristics416
- Traffic Filtering416
- Traffic Shaping416
- K.1 Overview416
- Table K-1. Rule Preference and Classification417
  - Max/Priority Mode418
Traffic Shaping Functionality (Qos417
- Classification417
- Drain417
- Table K-2. Rule Priorities418
  - K.3.2 Prioritization418
    - Min/Max Mode419
    - Diffserv Mode420
Weighting420
- Overview420
- Weights420
Appendix L. Dynamic Predistortion (Dpd) Option428
Overview428
- What Is Dynamic Predistortion (DPD429
- L.1.2 Predistortion430
- Crest Factor Reduction (CFR432
DPD - Operational Requirements433
DPD - Operational Recommendations434
DPD Link Design434
- Commissioning and Deployment435
DPD - Specifications438
Other Considerations439
- DPD and Doubletalk Carrier-In-Carrier439
- DPD and Adaptive Coding and Modulation (ACM439
- DPD and Automatic Uplink Power Control (AUPC439
- DPD Latency439

Comtech EF Data CDM-760 - Page 6

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