Comtech EF Data CDM-570A Installation And Operation Manual page 277

Command Arguments for
Parameter (Instruction
Type Code and
Qualifier)
Tx FEC Type TFT= 1 byte,
value of 0 thru 9,
A to B
Tx Modulation TMD= 1 byte,
Type value of 0 thru 8
Serial-based Remote Product Management
Command or
Response to
Query
Command or Query.
Sets or returns Tx FEC coding type in the form x, where:
0 = None (uncoded – no FEC) (forces TCR=7 Rate 1/1) with differential encoding
ON
1 = Viterbi
2 = Viterbi + Reed-Solomon
3 = Reserved – do not use
4 = Reserved – do not use
5 = TCM + Reed-Solomon (Forces TCR=3 Rate 2/3)
6 = Turbo
7 = Reserved
8 = VersaFEC CCM or ACM (fixed in IP-ACM) (see note)
9 = VersaFEC ULL (see note)
A = VersaFEC-2 Long (see note)
B = VersaFEC-2 Short (see note)
Note: Entries 8 through B are valid only in CDM-570A Compatible Mode (CMO=1).
Example: <0/TFT=1 (Viterbi coding)
Command or Query.
Sets or returns Tx Modulation type in the form x, where:
0 = BPSK
1 = QPSK
2 = OQPSK
3 = 8PSK
4 = 16-QAM
5 = 8-QAM (TPC/LDPC only) (Need Codec & FAST option)
6 = 8-ARY (VersaFEC-2 only)
7 = 16-ARY (VersaFEC-2 only)
8 = 32-ARY (VersaFEC-2 only)
Note: Selection availability depends on the active FEC type.
Example: <0/TMD=2 (OQPSK)
CDM-570A/570AL Satellite Modem with Optional Packet Processor
Description of Arguments
8–11
Revision 5
Query
Response to
(Instruction Code
Command
and Qualifier)
TFT= TFT? TFT=x
TFT? (see Description
TFT* of Arguments)
TFT#
TFT+
TMD= TMD? TMD=x
TMD? (see Description
TMD* of Arguments)
TMD#
TMD+
MN-CDM570A
Response to
Query