Comtech EF Data CDM-625 Installation And Operation Manual page 268

CDM-625 Advanced Satellite Modem
Remote Control
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
Tx Framing TFM= 1 byte, value of
Mode 0 thru 8
Tx FEC Type TFT= 1 byte, value of
0 thru 9
Description of Arguments
Command or Query.
Tx Framing mode, where:
0=Unframed
1=IBS
2=IDR
3=D&I - DROP (requires D&I FAST option)
4=EDMAC
5=D&I++ (requires D&I FAST option)
6=ESC++
7=EDMAC-2
8=Quad Drop & Insert (requires QDI FAST option)
(G.703 Balanced, E1-CCS only)
Example: TFM=0 (selects Unframed mode)
Command or Query.
Tx FEC coding type, where:
0=None (uncoded) with differential encoding ON
1=Viterbi
2=Viterbi + Reed-Solomon
3= reserved – do not use.
4= reserved – do not use.
5=TCM (Trellis Code Modulation) (Forces Rate 2/3)
6=TCM + Reed-Solomon (Forces Rate 2/3)
7=TPC (aka Turbo) (Requires TPC/LDPC Codec)
8=None (uncoded) with differential encoding OFF
9=LDPC (Requires TPC/LDPC Codec)
A=Reserved
Example: TFT=1 (which is Viterbi coding)
D–8
Revision 1
MN-0000036 (Ref MN/CDM625.IOM)
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
TFM= TFM? TFM=x
TFM? (see description of
arguments)
TFM*
TFM#
TFT= TFT? TFT=x
TFT? (see description of
arguments)
TFT*
TFT#