Tx Parameters - Comtech EF Data CDM-625A Installation And Operation Manual

CDM-625A Advanced Satellite Modem
Serial-based Remote Product Management
8.5.2

Tx Parameters

Priority System: TIT (Highest priority) , TFM, TFT, TMD, TCR, TDR, and TSR (Lowest Priority), indicated by shading. Any change to a higher
priority parameter can override any of the parameters of lower priority.
Exception – Select DROP, D&I++, QDI or Framed QDI mode using TFM (Transmit Framing type), which is highest priority.
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
Tx Interface TIT= 1 byte, value of
Type 0 thru 9, or A
Tx Framing TFM= 1 byte, value of
Mode 0 thru 9, A
Description of Arguments
Command or Query.
Tx Interface Type, where:
0=RS422
1=V.35
2= reserved – do not use.
3=Balanced G.703
4=Unbalanced G.703
5=Audio (Data rate fixed at 64 kbps) (IBS/EDMAC only)
6=LVDS
7=HSSI
8=IP
9=ASI
A=IP-ACM (Unframed, EDMACs only)
Example: TIT=1 (selects V.35)
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)
9=Framed QDI (requires QDI FAST option)
(G.703 Balanced, E1-CCS only)
A=EDMAC-3
Example: TFM=0 (selects Unframed mode)
8–10
Revision 0
MN-CDM625A
Query
Response to
(Instruction & Response to Query
Command
Qualifier)
TIT= TIT? TIT=x
TIT?
TIT* (see Description of
TIT# Arguments)
TFM= TFM? TFM=x
TFM?
TFM* (see Description of
TFM# Arguments)