Comtech EF Data cdm-570a

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CDM-570A/570AL Satellite Modem with Optional Packet Processor

Revision 5

DoubleTalk Carrier-in-Carrier Option G–6 MN-CDM570A

Figure G-3. Same Link Using CDM-570A with DoubleTalk

Carrier-in-Carrier

Figure G-4. Duplex Link Optimization

The CDM-570A/AL CnC module operates on the near-zero signal before the demodulator, and is

waveform agnostic. This means that no prior knowledge of the underlying modulation, FEC, or

any other waveform specific parameter is required in order to perform the signal suppression

operation. The only caveat to this is that the waveform must be sufficiently random.

Main Page

Default Chapter5
- Table of Contents5
- List of Figures22
- List of Tables22
- About this Manual33
- Electrical Installation35
- Operating Environment37
- Limitations of Warranty39
- Product Support39
Chapter 1. INTRODUCTION41
Overview41
- Modem Features Overview41
- Figure 1-1. CDM-570A and CDM-570AL Satellite Modems41
- Functional Description42
Features44
- Physical Description44
  - Standard Assemblies44
  - Optional Assemblies44
- Dimensional Envelope45
- Figure 1-2. Modem Dimensional Envelope (Shown W/Optional Packet Processor)45
- Physical Features46
- Standard Data Interfaces49
- Verification49
- Aupc50
- Edmac50
- Updating Modem Firmware50
- Fully Accessible System Topology (FAST)51
- Table 1-1. Standard Vs. FAST and FAST-Accessible Hardware Options52
- Supporting Hardware and Software54
Summary of Specifications55
- Modulator55
- Demodulator58
  - BER Performance Specification58
- Standard AUPC (Automatic Uplink Power Control)61
- Doubletalk® Carrier- In-Carrier® (Cnc)62
- Data and Miscellaneous Interfaces63
- Data Rate Ranges64
- Versafec Adaptive Coding and Modulation (ACM)65
  - Versafec ACM (IP-ACM)65
  - Versafec-2 ACM (V2-ACM)66
- Power67
- Physical Properties67
- Miscellaneous68
- Approvals68
Unpack and Inspect the Shipment69
- Figure 2-1. Unpack and Inspect the Shipment69
Chapter 2. Installation and Startup69
Install the Modem into a Rack Enclosure70
- Figure 2-2. Install the Modem into a Rack Enclosure71
  - Install the Optional Rear Support Brackets Kit72
  - Figure 2-3. Install the Optional Rear Support Brackets Kit72
Configure the Modem73
Verify Operation (if Loopback Test)73
Connect the External Cables74
Chapter 3. Rear Panel Connectors and Pinouts75
Overview - Cabling Connection Types75
- Coaxial Cable Connections76
- D-Subminiature Cable Connections78
- RJ-XX Cable Connections78
- Figure 3-2. D-Subminiature Connector Examples78
Modem Cabling Connections79
- Table 3-1. Rear Panel External Cabling Connections79
Modem Ground, Power, and Fuse Connections88
- Chassis Ground Interface88
- Figure 3-5. Modem Chassis Ground Interface (CDM-570AL-IP Shown)88
- Standard Alternating Current (AC) Power and Fusing Interfaces89
  - AC Operation - Standard or Available Accessories89
  - AC Operation - Chassis Power and Fusing90
- Modem Optional -24V or -48V DC Power Interfaces92
Chapter 4. Updating Firmware97
Overview97
- About Firmware Files, Naming, Versions, and Archive Formats98
Ethernet FTP Upload Procedure99
- Getting Started: Prepare for the Firmware Download99
- Download and Extract the Firmware Update104
- Perform the Ethernet FTP Upload Procedure106
Chapter 5. Fast Activation Procedure111
Overview111
FAST Activation Procedure112
- FAST Activation Via the Modem Front Panel112
- FAST Activation Via the CDM-570A HTTP Interface114
- Figure 5-1. CDM-570A HTTP Interface - Admin | FAST Page114
Chapter 6. Front Panel Operation117
Overview117
- Figure 6-1. Modem Front Panel Operation Features (CDM-570A Shown)117
Compatible Mode Operation (CDM-570A/570AL Vs. CDM-570/570L)121
Front Panel Operation122
- Figure 6-2. CDM-570A/570AL Principle Menu Tree122
Chapter 7. Ethernet-Based Remote Product Management189
Overview189
- Ethernet Management Interface Protocols190
SNMP Interface190
- Management Information Base (MIB) Files191
- SNMP Community Strings191
- SNMP Traps192
- Mib-II193
- Private MIB194
- Telnet Operation Via Hyperterminal194
CDM-570A HTTP (Web Server) Interface196
- Operational Features196
- CDM-570A HTTP Interface - Menu Tree198
  - HTTP Interface - IMPORTANT Conditional Operating Notes199
  - Figure 7-1. CDM-570A HTTP Interface Menu Tree199
- CDM-570A HTTP Interface201
Chapter 8. Serial-Based Remote Product Management268
Basic Protocol268
- Packet Structure269
Remote Commands and Queries273
- Transmit (Tx) Parameter Commands and Queries276
- Receive (Rx) Parameter Commands and Queries284
- Unit Parameter Commands and Queries290
- Bulk Configuration Commands and Queries305
- Modem Information Commands and Queries309
- Modem Performance Information315
- BUC (L-Band Block up Converter) Commands and Queries (CDM/R-570AL ONLY)324
- LNB (L-Band Low-Noise Block down Converter) Commands and Queries (CDM/R-570AL ONLY)8-61327
Chapter 9. Optional Packet Processor - Serial/Telnet Cli Operation329
Overview329
- Access to the CLI329
  - Connect to the Serial CLI330
  - Connect to the Telnet CLI331
Command Line Interface (CLI)332
- CLI Menus - Common Navigation and Operation Features333
CLI Operations335
- CLI Main Menu335
- Administration336
- Interface Configuration347
- Qos (Quality of Service) Configuration354
  - Qos Configuration > Qos Rules Configuration355
    - Qos Rules Configuration (Max/Priority Mode)355
    - Qos Rules Configuration (Min/Max Mode)357
  - Qos Configuration > Diffserv Rules Configuration358
- Route Table Configuration359
  - Route Table > Per Route Configuration361
- Protocol Configuration362
- Vipersat Configuration368
- Satellite Modem369
Chapter 10. Odu (Transceiver, Buc, Lnb) M&C Operations413
Overview413
- CDM-570A/570AL Front Panel Operation - Overview414
- CDM-570A HTTP Interface - Overview414
- CDM-570A/570AL Serial Remote Control - Overview415
Transceiver M&C Via the CDM-570A (70/140 Mhz) Satellite Modem417
- Transceiver M&C Via the CDM-570A Front Panel417
  - Select:) Odu418
- Transceiver M&C Via the CDM-570A's HTTP Interface437
  - ODU | Enable438
  - ODU | Config439
- Transceiver M&C Via CDM-570A Serial Remote Control447
  - C DM-570A Transceiver Remote Control Address Setup447
  - C DM-570A Transceiver Serial Remote Control Commands / Queries448
BUC and LNB M&C Via the CDM/R-570AL (L-Band) Satellite Modem449
- BUC and LNB M&C Via the CDM/R-570AL Front Panel449
  - S ELECT: (Main) Menu450
  - SELECT:) Monitor455
- BUC and LNB M&C Via the CDM-570A HTTP Interface457
  - O du (Buc, Lnb)458
    - Configuration | BUC458
    - Configuration | LNB459
- CDM/R-570AL BUC and LNB M&C Via Serial Remote Control Commands/Queries460
Appendix A. Cable Drawings461
- Overview461
  - To EIA-422/449 Data Cable462
  - To V.35 DCE Conversion Cable463
Appendix B. Fec (Forward Error Correction) Options465
- Overview465
- Viterbi466
- Table B-1. Viterbi Decoding Summary466
- Reed-Solomon (RS) Outer Codec467
  - Closed Network Modes467
- Trellis Coding Modulation (TCM) (FAST Option468
- Table B-2. 8-PSK/TCM Coding Summary468
- Turbo Product Codec (FAST Option469
  - TPC Overview469
- Versafec (Short-Block LDPC471
- Table B-3. the Versafec Modcod Set471
  - Versafec Extensions472
    - Extended CCM Codes472
- Table B-4. Extended CCM Codes472
  - Ultra-Low-Latency (ULL) Codes473
- Table B-5. ULL Codes473
- Versafec-2474
- Table B-6. Versafec-2 Modcod Set - Long Block475
- Table B-7. Versafec-2 Modcod Set - Short Block476
  - Field Upgrade Procedure - Versafec-2 Option Card479
- Uncoded Operation (no FEC483
Appendix C. Offset Qpsk Operation505
Appendix D. Optional High-Performance Packet Processor507
- Overview507
  - Operational Requirements508
  - High-Performance Packet Processor Features515
- Table D-1. ALDC Vs. LZS Compression Comparison523
- High-Performance Packet Processor - Quick Start Guide529
- High-Performance Packet Processor - Typical Operational Setups540
  - High-Performance Packet Processor Working Modes540
Appendix E. Aupc (Automatic Uplink Power Control551
- Overview551
- Setting AUPC Parameters551
- Compensation Rate553
- Monitoring553
Appendix F. Clocking Modes555
- Overview555
- Transmit Clocking555
- Receive Clocking558
- Notes560
- Clock Extension560
Appendix G. Doubletalk Carrier-In-Carrier Option567
- Overview567
- What Is Doubletalk Carrier-In-Carrier567
- Application Requirements568
  - Operational Recommendations570
- System Functionality and Operational Considerations571
- Table G-1. Spectral Efficiency Using Doubletalk Carrier-In-Carrier573
- Operational References586
  - Calculate Carrier-In-Carrier Link Budget586
  - Estimate PSD Ratio587
    - Estimate PSD Ratio from LST587
    - Estimate PSD Ratio from Satmaster588
- Carrier-In-Carrier Automatic Power Control (Cnc-APC589
- Doubletalk Carrier-In-Carrier Specifications599
- Glossary600
Appendix H. Emeasurement603
- Appendix H. E B /Nmeasurement603
Appendix H. E /N Measurement607
Appendix I. Radius Client607
- Overview607
  - RADIUS List of Supported Rfcs (Requests for Comment607
- RADIUS Client608
- Service Types608
- RADIUS Operation and Configuration610
  - RADIUS M&C Using the CDM-570A/570AL HTTP (Web Server) Interface611
  - RADIUS M&C Using Telnet612
Appendix J. Edmac Channel613
- Theory of Operation613
  - Edmac, Edmac-2613
- M&C Connection614
- Setup Summary615
Appendix K. Gps Mode617
- Hardware Setup617
- Overview617
- Remote Commands618
Appendix L. Advanced Quality of Service (Qos) Option619
- Overview619
- Table L-1. 802.1Q to Layer 2 Qos Priority Conversion629
- Qos with ACM (Adaptive Coding and Modulation630
- Glossary of Terms631
- Qos List of Supported Rfcs (Requests for Comment632
Appendix M. Transmit Spectrum Filtering Options633
- Observations and Recommendations633
- Overview633
Appendix N. 1:1 Ip Redundancy635
- Overview635
- Serial/Telnet CLI Operation Quick Reference636
- CRS-XXX 1:1 Redundancy Switch Functional Description638
  - 70/140 Mhz 1:1 Redundancy Switch638
  - CRS-170A L-Band 1:1 Redundancy Switch638
- CDM-570A/570AL-IP 1:1 IP Data Switching Functional Description640
- CDM-570A/570AL-IP 1:1 IP Redundancy Configuration642
- Cabling the CDM-570A-IP644
- Cabling the CDM/R-570AL-IP645
Appendix P. Adaptive Coding and Modulation (Acm) Option647
- Overview647
- Background648
- Requirements for ACM649
- An Existing Satellite ACM Scheme653
- Disadvantages of DVB-S2653
- Table P-1. Versafec Implementation of ACM - 100 Ksymbols/Sec Example Case654
  - Configuring Versafec ACM656
  - Switch Points657
- Versafec ACM (IP-ACM654
  - Versafec ACM Latency654
- Table P-2. Versafec-2 End-To-End Latency @ 100 Ksps658
  - Configuring Versafec-2 ACM659
- Versa FEC-2 ACM (V2-ACM658
  - Versafec-2 ACM Latency658
- Monitoring ACM Performance662
- Notes and Recommendations662
- Summary of Specifications665
  - Versafec ACM665
  - Versafec-2 ACM666
Appendix Q. Dedicated Management Port Feature668
- Dedicated Management Port - Description668
  - Configure Dedicated Management Port668
- Working Mode = Managed Switch Mode670
  - Managed Switch Mode - Local ONLY Mode671
  - Managed Switch Mode - Local & Remote Mode672
- Working Mode = Router Mode (Point-To-Multipoint / Point-To-Point / Vipersat673
  - Configure Router Mode673
- Dedicated Management Port and 1:1 Redundancy Operation676
  - 1:1 Redundancy in Managed Switch Mode676
  - 1:1 Redundancy in Router Mode677
- About Metacarrier679
Appendix R. Carrier ID (Dvb-CID Metacarrier679
- Overview679
- Functional Description680
- Configuring the CDM-570A/570AL for Carrier ID Operation681
  - Enabling Carrier ID Operation681
    - Enabling Operation Via the CDM-570A/570AL Front Panel and VFD681

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