Comtech EF Data CDM-425 Installation And Operation Manual page 343

Command
Length of
Parameter (Instruction
Argument
& Qualifier)
Rx FEC Type RFT= 1 byte,
A thru D
Rx Demod RMD= 1 byte,
Type 0, 1, or
4 thru 8
Rx FEC Code RCR= 1 byte,
Rate A thru Z,
a thru z, ", &, @, [, ],
{, }
Serial Remote Control
Description of Arguments
Command or Query.
Sets or returns Rx FEC Type in the form x, where:
0=Reserved
1=Reserved
2=Reserved
3=Reserved
4=Reserved
5=Reserved
6=Reserved
7=Reserved
8=Reserved
9=Reserved
A=VersaFEC CCM or ACM (Fixed in IP-ACM)
B=VersaFEC ULL
C=VersaFEC-2 Long Block
D=VersaFEC-2 Short Block
EXAMPLE: <0/RFT=C (selects VersaFEC-2 Long Block)
Command or Query (Query only in ACM).
Sets or returns Rx Demodulation in the form x, where:
0=BPSK
1=QPSK
2=Reserved
3=Reserved
4=16-QAM (VersaFEC only)
5=8-QAM (VersaFEC only) (Need FAST option)
6=8-ARY (VersaFEC-2 only)
7=16-ARY (VersaFEC-2 only)
8=32-ARY (VersaFEC-2 only)
Depending on FEC type, not all of these selections will be valid. All other codes are invalid.
EXAMPLE: <0/RMD=1 (selects QPSK)
Command or Query (Query only in ACM).
Sets or returns Rx FEC Code Rate in the form x, where:
0=Reserved
1=Reserved
2=Reserved
3=Reserved
4=Reserved
5=Reserved
6=Reserved
7=Reserved
8=Reserved
9=Reserved
A=VersaFEC CCM ModCod 0 – BPSK 0.488
B=VersaFEC CCM ModCod 1 – QPSK 0.533
C=VersaFEC CCM ModCod 2 – QPSK 0.631
D=VersaFEC CCM ModCod 3 – QPSK 0.706
8–19
CDM-425 Advanced Satellite Modem
Revision 0
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
RFT= RFT? RFT=x
RFT? (see Description of
RFT* Arguments)
RFT#
RMD= RMD? RMD=x
RMD? (see Description of
RMD* Arguments)
RMD#
RCR= RCR? RCR=x
RCR? (see Description of
RCR* Arguments)
RCR#
MN-CDM-425