Comtech EF Data CDM-625A Installation And Operation Manual page 339

CDM-625A Advanced Satellite Modem
Serial-based Remote Product Management
Command
Length of
Parameter (Instruction
Argument
& Qualifier)
Receive RBA= 4 bytes, each 0
Backward or 1
Alarms Enable
Receive ESC RET= 1 byte, 0 or 1
Type
Insert Timeslot ITS= 3 bytes
ReCenter RCB= None
Buffer
RX LO RLO= 6 bytes
Frequency
Rx Terminal N/A 10 bytes
Frequency
Receive REE= 1 byte
Equalizer
Enable and Rx
Alpha
Rx Info Rate N/A 9 bytes, numeric
Description of Arguments
Command or Query. (IDR parameter)
Sets or returns Receive Backward Alarms enable in the form xxxx, where:
0=Disable
1=External trigger Enable
EXAMPLE: <0/RBA=0101
Command or Query. (IDR parameter)
Sets or queries IDR ESC Type in the form x, where:
0=64k data channel
1=2 Audio channels
Command or Query. (D&I/D&I++ only)
(Note different format between command and query.)
Command sets Insert Timeslot in the form xxy, where:
xx=Channel 01 through 24
y=timeslot: 0-9, A=10, B=11, C=12, D=13,...V=31
Command only.
This command takes no arguments. Forces the modem to recenter the receive Plesiochronous/Doppler buffer.
EXAMPLE: <0/RCB=
Command or Query.
Sets or returns LNB Rx LO frequency information in the form xxxxxs, where:
xxxxx=LO frequency: 03000 through 65000 MHz, or 00000=Off
s=sign for the MIX (+ or –)(See Note 1)
NOTES:
1) Negative mix induces a spectral inversion.
2) For additional information see Chapter 6 for LO, MIX, and Spectrum Settings.
3) Rx Terminal Frequency=RX LO ± modem RFQ (see below)
Query only.
Returns Rx Terminal Frequency (the frequency, in MHz, being received from the satellite) in the form xxxxx.xxxx.
Resolution=100 Hz
NOTES:
1) For additional information see Chapter 6 for LO, MIX, and Spectrum Settings.
2) Returns 00000.0000 if LNB LO is zero
EXAMPLE: <0/RTF? >0/RTF=11650.2249 (MHz)
Command or Query.
Sets or returns Rx Equalizer and Rx Alpha in the form x, where:
0=Rx Equalizer Disabled and Rx Alpha=0.35 (DEFAULT)
1=Rx Equalizer Enabled and Rx Alpha=0.35
2=Rx Equalizer Disabled and Rx Alpha=0.12
3=Rx Equalizer Enabled and Rx Alpha=0.12
Query only.
Allows remote access to the Aggregate Rx Information Rate in the form ddddd.ddd
8–25
MN-CDM625A
Revision 4
Query
Response to
(Instruction & Response to Query
Command
Qualifier)
RBA= RBA? RBA=xxxx
RBA?
RBA* (see Description of
RBA# Arguments)
RET= RET? RET=x
RET?
RET* (see Description of
RET# Arguments)
ITS= ITS? ITS=yyyyyyyyyyyyyyy
ITS? yyyyyyyyy
ITS* indicating all 24 Insert
ITS# timeslots values
associated with the 24
Rx Satellite channels.
RCB= N/A N/A
RCB?
RCB*
RCB#
RLO= RLO? RLO=xxxxxs
RLO?
RLO* (see Description of
RLO# Arguments)
N/A RTF? RTF=xxxxx.xxxx
(see Description of
Arguments)
REE= REE? REE=x
REE?
REE* (see Description of
REE# Arguments)
RIR? RIR? RIR=ddddd.ddd
RIR=
RIR* (see Description of
RIR# Arguments)