Comtech EF Data CDM-710G, Installation And Operation Manual

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CDM-710G High-Speed Satellite Modem Revision 1
Remote Control MN-CDM710G
A–29
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments for
Command or
Response to
Query
Description of Arguments
Response to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Tx Output
Impendance IMP= 1 byte Command or Query.
Tx output impedance, where:
0=50 Ohm
1=75 Ohm
Example: IMP=0 (Set impedance to 50 Ohms)
* NOTE: Setting Tx Impedence is only possible on 70/140 Mhz units.
IMP=
IMP?
IMP*
IMP# IMP? IMP=x
Rx Buffer Size RBS=
5 bytes
Command or Query.
Rx Buffer Size (in milliseconds), where:
s=Defines which interface slot ( 1 or 2 )
xx.x= Rx Buffer Size,
HSSI = 5.0 to 32.0 ms, in 0.1 ms steps
E3T3STS1
E3 mode = 0.5 to 61.0 ms, in 0.5 ms steps
T3 mode = 0.5 to 44.0 ms, in 0.5 ms steps
STS1 mode = 0.5 to 40.0 ms, in 0.5 ms steps
Note: Command not valid for GBEI.
Example: RBS=130.0 (selects 30.0 ms on interface 1)
RBS=
RBS?
RBS*
RBS#
RBS?s
RBS=sxx.x
(see description of
arguments)
ReCenter Buffer RCB= 2 bytes Command only.
Forces the software to recenter the receive Plesiochronous/Doppler buffer.
s=Defines which interface slot ( 1 or 2 )
Example: RCB=11 (ReCenter buffer on interface 1 channel 1)
Note: Command not valid for GBEI.
RCB=
RCB?
RCB*
RCB# N/A N/A
Rx Clock
Source
RCK=
2 bytes
Command or Query.
Rx Clock Source (For Data Rate Accuracy), where:
s=Defines which interface slot ( 1 or 2 )
x=Rx Clock Source, where:
0=Rx Satellite
1=Tx-Terrestrial
2=External Reference Clock
3=Internal (HSSI Only)
Example: RCK=11 (selects Tx-Terrestrial)
RCK=
RCK?
RCK*
RCK#
RCK?s
RCK=sx
(see description of
arguments)
Rx Buffer
Frame RFM=
2 bytes Command or Query. (G.703 Parameters)
Rx Buffer Frame, where:
s=Defines which interface slot ( 1 or 2 )
x=Rx Ternary Code, where:
0=None ( Valid for E3, T3, and STS-1 )
1=G.751 (Valid for E3 )
2=G.752 (Valid for T3 )
3=G.753 (Valid for E3 )
4=STS-1 (Valid for STS-1 )
Note: Command valid only with CDI-10-1G.703 interface.
Example: RFM=11 (selects G.751 for slot #1, channel #1)
RFM=
RFM?
RFM*
RFM# RFM?s
RFM=sx
(see description of
arguments)