Comtech EF Data CDM-550T - Manual (Page 131)

CDM-550T Satellite Modem Revision 3
Remote Control MN/CDM550T.IOM
15–15
Parameter
Type
Command
(Instruction
Code and
qualifier)
Arguments for
Command or
Response to
Query
Description of arguments
(note that all arguments are ASCII numeric codes, that is,
ASCII codes between 48 and 57)
Response to Command
(target to controller)
Query
(Instruction
Code and
qualifier)
Response to
query
(target to
controller)
Config Store CST= 1 byte,
numerical, 0 to 9 Command or Query.
Forces the unit to store the current modem configuration in
Configuration Memory location defined by the one byte
argument (0 to 9).
Example CST=4 (Store current config in location 4)
WARNING: Use with caution! If the location already
contains data it will be automatically overwritten. If in
doubt, query the location first. CST= (message ok)
CST? (received ok,
but invalid arguments
found) CST?n,
where
n is 0 to 9
CST?0, or
CST?1, or
CST?2, or
CST?3, or
CST?4, or
CST?5, or
CST?6, or
CST?7, or
CST?8, or
CST?9 Return the same
format as the
MGC with
the form:
CST= for a valid
config, and CST*
where no valid
config is found
for that n
Config Load CLD= 1 byte,
numerical, 0 to 9 Command only.
Forces the unit to retrieve the Configuration Memory location
defined by the one byte argument (0 to 9). and to re-program the
unit with that stored configuration.
CLD= (message ok)
CLD? (message received
ok, but an invalid
argument was found,
CST* (message ok, but
the requested location
does not contain a valid
configuration) N/A N/A
ReCenter Buffer RCB= None Command only.
Forces the unit to re-center the receive plesiochronous/doppler
buffer.
This command takes no arguments. RCB= (message ok) N/A N/A
FSW= None Command only.
Forces the unit to toggle the Unit Fail relay to the ‘fail’ state for
approx 500ms. If the unit is a 1:1 pair, and it is currently the ‘On
Line’ unit, this will force a switchover, so the unit will then be in
‘Standby’ mode. The command is always executed by the unit,
regardless of whether it is stand-alone, in a 1:1 pair, or part of a
1:N system.
This command takes no arguments.
10dB
attenuator
set ATS= 1 byte, value of 0
or 1 FACTORY USE ONLY
Modulator output 10dB attenuator setting, where
0 = no attenuation
1 = 10 dB attenuation
Example: ATS=0
(Used for power-level calibration)
Power level DAC
set DAC= 4 bytes,
numerical
FACTORY USE ONLY
Modulator power output DAC setting. An argument between
0000 and 4095 is required
Example: DAC=1287
(Used for power-level calibration)