Comtech EF Data CDM-600 Operating Instructions Manual page 186

CDM-600 Satellite Modem
Remote Control
Command
Arguments for
Parameter
(Instruction Command or
Code and Response to
Type
Query
Qualifier)
Countdown CTD= 3 bytes,
of Warm-up numeric
Delay
remaining
Unit Test TST= 1 byte, value
Mode of 0 thru 6
Unit Alarm MSK= 6 bytes
Mask
Description of Arguments
Command or query. (Hi-stab Ref parameter)
Requires High-Stability Frequency Reference module to
be installed.
xxx = countdown of the number of seconds remaining of
the Warm-up time.
As a command, the only permitted format is CTD=000,
which abandons the delay.
If Hi-Stability module is not installed, response to query
is CTD*.
Command or Query.
CDM-600 Test Mode, where:
0=Normal Mode (no test)
1=Tx CW
2=Tx Alternating 1,0 Pattern
3=IF Loopback
4=RF Loopback
5=Digital Loopback
6=I/O Loopback
Example: TST=3 (IF Loopback)
Command or Query.
Alarm mask conditions, in form abcdef, where:
a=Tx AIS (0 = unmasked, 1 = masked)
b=Rx AIS (0 = unmasked, 1 = masked)
c=bufferslip Alarm (0 = unmasked, 1 = masked)
d=spare
e=Rx AGC Alarm (0 = unmasked, 1 = masked)
f=Eb/No Alarm (0 = unmasked, 1 = masked)
Example: MSK=010110
16–24
MN/CDM600.IOM
Query
Response
(Instruction
to Response to Query
Code and
Command
Qualifier)
CTD= CTD? CTD=xxx
CTD? (see description of
arguments)
CTD*
CTD#
TST= TST? TST=x
TST? (see description of
arguments)
TST*
TST#
MSK= MSK? MSK=abcdef
MSK? (see description of
arguments)
MSK*
MSK#
Revision 7