Comtech EF Data CDM-710 Installation And Operation Manual page 248

CDM-710/L Broadcast Satellite Modem
Serial Interface Operation
Controller-to-Target
Instruction Code & Qualifier
Parameter
Type
Command Query
Rx Frequency RFQ= RFQ?
Rx Frame Size N/A RFS?
Rx FEC Type N/A RFT?
Rx Gold Code RGS= RGS?
Sequence
Index
Rx Interface RIE= RIE?s
Enable
Number of
Arguments for
Command or
(Note that all arguments are ASCII numeric codes from 48 and 57)
Response to
Query
9 bytes Command or Query.
Sets or returns the Rx Frequency in the form xxxx.xxxx where:
xxxx.xxxx=frequency in MHz, in 100 Hz steps:
CDM-710 (70/140 MHz) Demodulator: 52-88 MHz and 104-176 MHz
CDM-710L (L-Band) Demodulator: 950-1950 MHz
COMMAND EXAMPLE: <0001/RFQ=0950.0000{CR}
1 byte Query only.
Returns the Rx Frame Size Long/Short selection in the form x where:
0=Short
1=Long
NOTES:
1) Valid only in DVB-S2 mode.
2) If the unit is not locked, the query returns 'x'.
EXAMPLE: <0001/RFS?{CR}
>0000/RFS=0 (Short Frame Size)
1 byte Query only.
Returns the active Rx FEC coding type in the form x where:
0=Viterbi + Reed-Solomon
1=LDPC
NOTE: FEC is dependent on the RX Mode Type.
EXAMPLE: <0001/RFT=1{CR}
>0001/RFT=1{CR}{LF} (type is set to LDPC coding)
6 bytes Command or Query.
Sets or returns the Rx Gold Code Sequence Index in the form xxxxxx where:
xxxxxx=Gold Code Sequence index, value from 000000 to 262141
NOTE: Valid in DVB-S2 Mode only.
COMMAND EXAMPLE: <0001/RGS=189063{CR}
2 bytes Command or Query.
Sets or returns the Interface Slot operating status in the form sx where:
s=Interface Slot 1 or 2
x=Rx Interface Status, where 0=Disabled, 1=Enabled
COMMAND EXAMPLE: <0001/RIE =11 (enables Intfc #1 receive interface)
9–40
Description of Arguments
MN/CDM710.IOM
Revision 12
Target-to-Controller
(See Description of Arguments)
Response to Response to
Command Query
RFQ= RFQ=xxxx.xxxx
RFQ?
RFQ*
RFQ#
N/A RFS=x
RFT? RFT=x
RFT*
RFT#
RGS= RGS=xxxxxx
RGS?
RGS*
RGS#
RIE= RIE=sx
RIE?
RIE*
RIE#