Comtech EF Data CDM-600 Operating Instructions Manual page 176

CDM-600 Satellite Modem
Remote Control
Command
Arguments
Parameter
(Instruction for Command
Code and or Response
Type
to Query
Qualifier)
Tx IF TIP= 1 byte, value
Impedance of 5 or 7
Rx Frequency RFQ= 8 bytes
Rx Interface RIT= 1 byte, value
Type of 0 thru 6
Description of Arguments
Command or Query.
Tx IF Impedance, where:
5=50Ω
7=75Ω
Both Tx and Rx sides will change with this selection.
Example: TIP=5 (50Ω)
Command or Query.
With hardware revision xx.0: standard frequency range:
52 MHz to 88 MHz, or 104 MHz to 176 MHz.
With hardware revision xx.1: extended frequency range:
50 MHz to 90 MHz, or 100 MHz to 180 MHz.
Use HRV? to obtain the hardware revision level.
Resolution=100Hz.
Example: RFQ=072.9872
Note: The CDM600 supports both 70 and 140 MHz bands.
Command or Query.
Rx Interface Type, where:
0=RS422
1=V.35
2=RS232 (synchronous)
3=Balanced G.703
4=Unbalanced G.703
5=Audio (Data rate is fixed at 64 kbps) (IBS/EDMAC
only)
6=LVDS
Example: RIT=1 (selects V.35)
16–14
MN/CDM600.IOM
Query
Response
(Instruction
to Response to Query
Code and
Command
Qualifier)
TIP= TIP? TIP=x
TIP? (see description of
arguments)
TIP*
TIP#
RFQ= RFQ? RFQ=xxx.xxxx
RFQ? (see description of
arguments)
RFQ*
RFQ#
RIT= RIT? RIT=x
RIT? (see description of
arguments)
RIT*
RIT#
Revision 7