Comtech EF Data CDM-500 - Manual (Page 76)

CDM-500 Closed Network Satellite Modem Remote Control
Rev. 1.3 B–11
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)
Unit Alarm
Mask MSK= 5 bytes, each
with a value of
0 or 1 Command or Query.
Alarm mask conditions, in the form abcde, where:
a = mask Tx AIS alarm, b = mask Rx AGC alarm
c = mask buffer alarms, d = mask Rx AIS alarm
e = mask Eb/No alarm
Setting any of these bytes to 0 unmasks alarm, setting
to 1 masks them. Example: MSK=01011 MSK= (message ok)
MSK? (received ok,
but invalid arguments
found)
MSK* (message ok,
but not permitted in
current mode) MSK? MSK=abcde
(same format as
command
arguments)
EDMAC
Slave Address ESA= 4 bytes,
numerical
Command or Query.
EDMAC Slave Address - sets the range of addresses
of distant-end units (modems or transceivers) which
this unit will forward messages for. Only values
which are integer multiples of ten are permitted.
(0010, 0020, 0030, 0040 etc.)
Example: ESA=0890
Important Note: Setting the value of the EDMAC
Slave Address to 0000 disables this function. Setting
a valid address here will automatically define the
unit as being an EDMAC Master.
This command is only valid for an EDMAC master.
When used as a Query, it may be sent to an EDMAC
slave, which will respond with the appropriate
address. ESA= (message ok)
ESA? (received ok,
but invalid arguments
found) ESA*
(message ok, but not
permitted in current
mode – for example
if ESA= is sent to a
distant-end slave
unit) ESA? ESA=xxxx
(same format as
command
arguments)
Circuit ID
string CID= 24 bytes,
ASCII
Command or Query.
Sets or queries the user-defined Circuit ID string,
which is a fixed length of 24 characters.
Valid characters include:
Space ( ) * + - , . / 0-9 and A-Z CID= (message ok)
CID? (received ok,
but invalid arguments
found) CID? CID=xxxxxxxx
xxxxxxxxxxxx
xxx (same
format as
command
arguments)
Outdoor Unit
Comms ODU= 1 byte, of 0 or
1 value Command or Query.
Enables or disables communication, via an FSK serial
link, with a Comtech Transceiver (Outdoor unit).
0 = disabled
1 = enabled
Example: ODU=0 ODU= (message ok)
ODU? (received ok,
but invalid arguments
found) ODU*
(message ok, but not
permitted in current
mode ODU? ODU=x (same
format as
command
arguments)