Comtech EF Data CDM-570AL

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

Revision 5

DoubleTalk Carrier-in-Carrier Option G–12 MN-CDM570A

Carrier-in-Carrier link design involved trying different Modulation & FEC Code Rates to find the

optimal combination (the CDM-570A/AL also offers 5% to 35% transmit filter rolloffs that can be

used in addition to Modulation and FEC for link optimization):

• QPSK, VersaFEC 0.706 with Carrier-in-Carrier

• QPSK, VersaFEC 0.631 with Carrier-in-Carrier

• QPSK, VersaFEC 0.533 with Carrier-in-Carrier

Link parameters and LST summary, for QPSK, VersaFEC 0.533 with Carrier-in-Carrier, is as

follows:

Includes IF-RF Margin and CnC Margin

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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