Comtech EF Data CDM-710 Installation And Operation Manual page 236

CDM-710/L Broadcast Satellite Modem
Serial Interface Operation
Controller-to-Target
Instruction Code & Qualifier
Parameter
Type
Command Query
Rx FEC Code RCR= RCR?
Rate
Rx Symbol RSR= RSR?
Rate
Adaptive AEQ= AEQ?
Equalizer
Operation
ASI Rx Frame ARF= ARF?
Number of
Arguments for
Command or
(Note that all arguments are ASCII numeric codes from 48 and 57)
Response to
Query
1 byte Command or Query
Sets or returns the Rx Code Rate in the form x where:
0=Rate 3/4
1=Rate 7/8
2=Rate 3/5
3=Rate 4/5
4=Rate 5/6
5=Rate 8/9
6=Rate 9/10
7=Rate 2/3
8=Rate 1/2
NOTES:
1) See Chapter 2. SPECIFICATIONS for available code rates for each mode.
2) If the demodulator is set to DVB-S2 Mode, RCR functions as query-only
because the demodulation type is automatically detected.
3) If the unit is not locked, the query returns 'x'.
COMMAND EXAMPLE: <0001/RCR=0{CR} (sets Rate 3/4)
9 bytes Command or Query.
Sets or returns the Rx Symbol Rate in the form ss.ssssss where:
ss.ssssss=Symbol Rate in Msps
NOTE: See Chapter 2. SPECIFICATIONS for a list of available symbol rates for
each mode.
COMMAND EXAMPLE: <0001/RSR=20.000000 (sets as 20 Msps)
1 byte Command or Query.
Sets or returns the Adaptive Equalizer operation in the form x where:
0=Disable
1=Enable
COMMAND EXAMPLE: <0001/AEQ=1{CR} (enables EQ)
2 bytes Command or Query.
Sets or returns the ASI Rx Frame Size in the form sf, where:
s=1 (Interface Slot 1 only)
f=Frame size, where 0=188 bytes, 1=204 bytes
NOTE: Valid only for CDI-40 ASI Interface Module operation.
COMMAND EXAMPLE: <0001/ARF=11{CR} (sets Slot 1 to 204 byte frame size)
9–28
Description of Arguments
MN/CDM710.IOM
Revision 12
Target-to-Controller
(See Description of Arguments)
Response to Response to
Command Query
RCR= RCR=x
RCR?
RCR*
RCR#
RSR= RSR=ss.ssssss
RSR?
RSR*
RSR#
AEQ= AEQ=x
AEQ?
AEQ*
AEQ#
ARF= ARF=sf
ARF?
ARF*
ARF#