Comtech EF Data CDM-425, Installation And Operation Manual

Page: 345 / 744

CDM-425 Advanced Satellite Modem
Revision 0
Serial Remote Control 8–21 MN-CDM-425
Parameter
Command
(Instruction
& Qualifier)
Length of
Argument
Description of Arguments
Response to
Command
Query
(Instruction
& Qualifier)
Response to Query
…Rx FEC
Code Rate
(cont)
z=VersaFEC-2 ModCod 30 – 32-ARY 0.708
“=VersaFEC-2 ModCod 31 – 32-ARY 0.733
&=VersaFEC-2 ModCod 32 – 32-ARY 0.757
@=VersaFEC-2 ModCod 33 – 32-ARY 0.782
[=VersaFEC-2 ModCod 34 – 32-ARY 0.801
]=VersaFEC-2 ModCod 35 – 32-ARY 0.831
{=VersaFEC-2 ModCod 36 – 32-ARY 0.855 (Long Block only)
}=VersaFEC-2 ModCod 37 – 32-ARY 0.879 (Long Block only)
Depending on FEC type, not all of these selections will be valid.
EXAMPLE: <0/RCR=A (selects VersaFEC CCM ModCod0 – BPSK 0.488)
Rx Data Rate RDR= 9 bytes Command or Query (Query only in ACM).
Sets or returns Rx Data Rate, the formxxxxx.xxx, where:
xxxxx.xxx=Value, in kbps, from 18 kbps to 25 Mbps
Resolution=1 bps
EXAMPLE: <0/RDR=02047.999.
NOTES:
1) Additional auxiliary G.703 sub-rates are available, selected using:
00512.AUX 01024.AUX 02048.AUX
2) If set for QDI (Quad D&I), RDR is query only.
3) The connectors used for the Aux rates are IDI/DDO.
4) These Aux rates are not available with D&I.
RDR=
RDR?
RDR*
RDR#
RDR? RDR=xxxxx.xxx
(see Description of
Arguments)
Rx Symbol
Rate
RSR= 9 bytes,
numeric
Query only (Command or Query in IP-ACM or VersaFEC-2 ACM).
Allows remote access to the Rx Symbol Rate in the form ddddd.ddd
NOTE: Symbol Rate ranges in IP-ACM=37 ksym/sec to 4100 ksym/sec
Symbol Rate ranges in VersaFEC-2 ACM Short Block=37 ksym/sec to 1000 ksym/sec
Symbol Rate ranges in VersaFEC-2 ACM Long Block=37 ksym/sec to 125000 ksym/sec
RSR=
RSR?
RSR*
RSR#
RSR? RSR=ddddd.ddd
(see Description of
Arguments)
Rx Frequency RFQ= 9 bytes Command or Query.
Sets or returns Frequency ranges in the form xxxx.xxxx where:
L-Band Unit range is from 950 MHz to 2250 MHz, and
70/140 MHz Unit (FAST option) range is from 50 MHz to 180 MHz
Resolution=100Hz.
EXAMPLE: <0/RFQ=0950.9872
RFQ=
RFQ?
RFQ*
RFQ#
RFQ? RFQ=xxxx.xxxx
(see Description of
Arguments)
Rx Data Invert RDI= 1 byte,
0 or 1
Command or Query.
Invert Receive Data in the form x, where:
0=Normal
1=Inverted
EXAMPLE: <0/RDI=1 (selects Inverted RX Data)
RDI=
RDI?
RDI*
RDI#
RDI? RDI=x
(see Description of
Arguments)
Rx Sub-Mux
on/off
RMX= 1 byte,
0 or 1
Command or Query.
Sets or returns Rx Sub-Mux in the form x, where:
0=Off
1=On
RMX?
RMX=
RMX*
RMX#
RMX? RMX=x
(see Description of
Arguments)