Comtech EF Data CDM-570A Installation And Operation Manual page 24

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Table of Contents
L.2 QoS with ACM (Adaptive Coding and Modulation) ............................................................. L-12
L.2.1 Maximum Clipping .................................................................................................................................. L-12
L.2.2 Minimum Data Rate ............................................................................................................................... L-12
L.2.3 DiffServ w/ACM QoS Example ............................................................................................................... L-12
L.3 Glossary of Terms ............................................................................................................. L-13
L.4 QoS List of Supported RFCs (Requests for Comment) ......................................................... L-15
APPENDIX M. TRANSMIT SPECTRUM FILTERING OPTIONS ......................................... M-1
M.1 Overview .......................................................................................................................... M-1
M.2 Observations and Recommendations ................................................................................ M-1
APPENDIX N. 1:1 IP REDUNDANCY ................................................................................. N-1
N.1 Overview ........................................................................................................................... N-1
N.2 Serial/Telnet CLI Operation Quick Reference ...................................................................... N-2
N.3 CRS-XXX 1:1 Redundancy Switch Functional Description ..................................................... N-4
N.3.1 CRS-180 70/140 MHz 1:1 Redundancy Switch ..................................................................................... N-4
N.3.2 CRS-170A L-Band 1:1 Redundancy Switch ............................................................................................ N-4
N.4 CDM-570A/570AL-IP 1:1 IP Data Switching Functional Description ...................................... N-6
N.5 CDM-570A/570AL-IP 1:1 IP Redundancy Configuration ....................................................... N-8
N.6 Cabling the CDM-570A-IP ................................................................................................. N-10
N.7 Cabling the CDM/R-570AL-IP ............................................................................................ N-11
APPENDIX P. ADAPTIVE CODING AND MODULATION (ACM) OPTION ........................ P-1
P.1 Overview ............................................................................................................................ P-1
P.2 Background ........................................................................................................................ P-2
P.3 Requirements for ACM ........................................................................................................ P-3
P.4 An Existing Satellite ACM Scheme ........................................................................................ P-5
P.5 Disadvantages of DVB-S2 .................................................................................................... P-5
P.6 VersaFEC ACM .................................................................................................................... P-6
P.7 VersaFEC ACM Latency ........................................................................................................ P-8
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MN-CDM570A / CD-CDM570A
Revision 3