Comtech EF Data CDM-570A Installation And Operation Manual page 20

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Table of Contents
B.3 Reed-Solomon Outer Codec ................................................................................................ B-3
B.3.1 Closed Network Modes ............................................................................................................................ B-3
B.4 Trellis Coding Modulation (TCM) (FAST Option) ................................................................... B-4
B.5 Turbo Product Codec (FAST Option) ..................................................................................... B-5
B.5.1 TPC Overview ............................................................................................................................................ B-5
B.6 VersaFEC (Short-block LDPC) ................................................................................................ B-7
B.6.1 VersaFEC Extensions ................................................................................................................................. B-8
B.6.1.1 Extended CCM Codes........................................................................................................................... B-8
B.6.1.2 Ultra-Low-Latency (ULL) Codes ........................................................................................................... B-9
B.7 Uncoded Operation (No FEC) ............................................................................................. B-10
APPENDIX C. OFFSET QPSK OPERATION ...................................................................... C-1
APPENDIX D. OPTIONAL HIGH-PERFORMANCE PACKET PROCESSOR .................... D-1
D.1 Overview ........................................................................................................................... D-1
D.1.1 Operational Requirements ..................................................................................................................... D-2
D.1.1.1 Major Assemblies ................................................................................................................................ D-2
D.1.1.2 Interoperability Compatibility/Limitations ....................................................................................... D-2
D.1.1.3 High-Performance Packet Processor Field Upgrade Procedure .................................................... D-3
D.1.1.3.1 Overview .....................................................................................................................D-3
D.1.1.3.2 Requirements for Field Upgrade ................................................................................D-3
D.1.1.3.3 Field Upgrade Procedure ............................................................................................D-4
D.1.2 High-Performance Packet Processor Features ..................................................................................... D-9
D.1.2.1 10/100 BaseT Ethernet Interface ...................................................................................................... D-9
D.1.2.2 Network-Based Management ......................................................................................................... D-10
D.1.2.2.1 Remote Software/Firmware Upgrade via FTP ..........................................................D-10
D.1.2.2.2 Configuration Backup and Restore via FTP ..............................................................D-10
D.1.2.2.3 Event Logging to Capture All Packet Processor Activity ...........................................D-11
D.1.2.2.4 Detailed Statistics of IP Traffic ..................................................................................D-12
D.1.2.3 Static IP Routing for Unicast and Multicast .................................................................................... D-12
D.1.2.4 IGMP Support for Multicast ............................................................................................................. D-12
D.1.2.5 Managed Switch Mode .................................................................................................................... D-12
D.1.2.5.1 Managed Switch Mode Operation ...........................................................................D-12
D.1.2.5.2 Combined Working Mode ........................................................................................D-14
D.1.2.6 Adaptive Coding and Modulation (ACM) ....................................................................................... D-15
D.1.2.7 High-Performance Packet Processor Optional FAST Features ..................................................... D-15
D.1.2.7.1 CDM-570A/570AL-Packet Processor in Demo Mode ...............................................D-15
D.1.2.7.2 Header and Payload Compression ...........................................................................D-16
D.1.2.7.2.1 IP Header Compression .....................................................................................D-16
D.1.2.7.2.2 Payload Compression ........................................................................................D-17
D.1.2.7.2.3 ALDC vs. LZS Compression Comparison Table ...................................................D-17
D.1.2.8 Advanced Quality of Service (QoS) .................................................................................................. D-18
D.1.2.9 Vipersat / VFS ..................................................................................................................................... D-19
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MN-CDM570A / CD-CDM570A
Revision 3