Comtech EF Data CDM-550T - Manual (Page 130)

CDM-550T Satellite Modem Revision 3
Remote Control MN/CDM550T.IOM
15–14
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)
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
xxxxxxxxxxxxxxx
(same format as
command
arguments)
Outdoor Unit
Comms ODU= 1 byte, value of 0
or 1 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)
AUPC
Enable AUP= 1 byte, value of 0
or 1 Command or Query.
Enables or disables AUPC (Automatic Uplink Power Control). 0
= disabled 1 = enabled
Example: AUP=0
Note: Framing must be selected for the AUPC feature to work. If
AUPC is selected when Framing is disabled, AUP* will be
returned AUP= (message ok)
AUP? (received ok,
but invalid arguments
found)
AUP* (message ok, but
not permitted in current
mode) AUP? AUP=x
(same format as
command
arguments)
AUPC
Parameters APP= 6 bytes, Command or Query.
Defines AUPC operating parameters. Has the form abc.cd
Where:
a = Define action on max power condition:
0 = do nothing 1 = generate TX alarm
b = Define action on remote demod unlock:
0 = go to nominal power 1 = go to max power
c.c = Target Eb/No value, in dB, for remote demod
d = Maximum increase in Tx Power permitted, in dB
Example: APP= 015.67 APP= (message ok)
APP? (received ok,
but invalid arguments
found)
APP* (message ok, but
not permitted in current
mode) APP? APP=abc.cd
(same format as
command
arguments)