Receive (Rx) Parameter Commands And Queries - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Serial-based Remote Product Management
8.3.3

Receive (Rx) Parameter Commands and Queries

Rx Priority System = RFT (Highest priority), RMD, RCR, RDR, and RSR (Lowest Priority), indicated by shading. Any change to a higher priority
parameter will override any of the lower priority parameters.
Command
Parameter (Instruction
Type Code and
Qualifier)
Rx FEC Type RFT= 1 byte,
value of 0 thru 6
Rx Demod type RMD= 1 byte,
value of 0 thru 5
Arguments for
Command or
Response to
Query
Command or Query.
Sets or returns Rx FEC Type in the form x, where:
0 = None (uncoded – no FEC) with differential encoding ON
1 = Viterbi
2 = Viterbi + Reed-Solomon
3 = Reserved – do not use
4 = Reserved – do not use
5 = TCM + Reed-Solomon
6 = Turbo
7 = Reserved
8 = VersaFEC CCM or ACM (fixed in IP-ACM) (see note)
9 = VersaFEC ULL (see note)
Note: Entries 8 and 9 are valid only in CDM-570A Compatible Mode (CMO=1).
Example: <0/RFT=1 (Viterbi only)
Command or Query.
Sets or returns Rx Demodulation in the form x, where:
0 = BPSK
1 = QPSK
2 = OQPSK
3 = 8PSK
4 = 16QAM
5 = 8-QAM
Note: Selection availability depends on the active FEC type.
Example: <0/RMD=2 (OQPSK)
Description of Arguments
8–18
MN-CDM570A
Revision 3
Query
Response to
(Instruction Code
Command
and Qualifier)
RFT= RFT? RFT=x
RFT? (same format
RFT* as command
RFT# argument)
RFT+
RMD= RMD? RMD=x
RMD? (see Description
RMD* of Arguments)
RMD#
RMD+
Response to
Query