Comtech EF Data CDM-625 - D.5.2 Tx Parameters

CDM-625 Advanced Satellite Modem Revision 13
Appendix D MN-CDM625
D–10
D.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.
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to
Query
Tx Interface
Type
TIT=
1 byte, value
of 0 thru 9, or
A
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)
TIT=
TIT?
TIT*
TIT#
TIT?
TIT=x
(see Description of
Arguments)
Tx Framing
Mode
TFM=
1 byte, value
of 0 thru 9, A
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)
TFM=
TFM?
TFM*
TFM#
TFM?
TFM=x
(see Description of
Arguments)