Comtech EF Data CDM-550T Manual page 134

Remote Control
Parameter Command
Type (InstructionC
ode and
qualifier)
Rx BER N/A
Redundancy N/A
State
Local/Remote LRS=
Status
Serial Number SNO=
Extended Serial ESN=
Number
Equipment N/A
ID
15–20
Arguments for Description of arguments
Command or (note that all arguments are ASCII numeric codes, that is,
Response to ASCII codes between 48 and 57)
Query
5 bytes Query only.
Unit returns the value of the estimated corrected BER in the
form a.b x 10exp-c. Fist and second bytes are value, 3rd and
4th bytes are the exponent. Returns 99999 if demod is
unlocked.
Example: BER=4.8E3 (BER is 4.8 x 10-3)
1 byte, value of Query only.
0 or 1 Returns the redundancy state of the unit, where:
0 = Off Line (forced into standby by 1:N or 1:1 Switch) 1= On
Line (normal). All other codes invalid. Example: RED=1 (On
Line)
1 byte, value of Command or query (Command only if S/W > 1.13)
0 or 1 As a query, returns the local/remote status of the unit, where:
0 = local
1= remote
When used as a comand, uses the same codes for an argument.
Example: LRS=1 (unit is in remote mode)
4 bytes Command portion is FACTORY USE ONLY. Used to set or
numerical Query the units 4 digit serial number.
0000 to 9999 Unit returns its S/N, in the form xxxx.
Example: SNO=1765 (1
9 bytes Command portion is FACTORY USE ONLY. Used to set or
numerical Query the unit's 9 digit serial number.
Unit returns its S/N, in the form xxxxxxxxx.
Example: ESN=123451765 (S/W Version > 1.16)
6 bytes, Query only.
numerical Unit returns the equipment identification, and the options
fitted, in the form aaaabc, where:
aaaa defines the Modem model number. Example:
2550 is CDM-550T, no Reed-Solomon or Turbo
3550 is CDM-550T with Reed-Solomon Codec
4550 is CDM-550T with Turbo Codec fitted (Rate 3/4 QPSK
only - S/W Version less than 1.15)
5550 is CDM-550T with Turbo Codec fitted (Rate 3/4 QPSK,
plus Rate 21/44 and Rate 5/16 BPSK)
b defines the IF band, with 1 = 70MHz, 2 = 140MHz
c defines RX only, with 1 = RX/TX, 2 = RX only.
Example: EID=455011 (CDM-550T, Rate 3/4 Turbo Codec,
70 MHz band, RX/TX)
ST
4 DIGITS OF ESN – 9 DIGIT S/N)
CDM-550T Satellite Modem
Response to Command Query
(target to controller) (Instruction
Code and
qualifier)
N/A BER?
N/A RED?
LRS= LRS?
(message ok)
SNO= (message ok) SNO?
ESN= (message ok) ESN?
N/A EID?
Response to query
(target to controller)
BER=a.bEc
(see description for
details of arguments)
RED=x (see
description for details
of arguments)
LRS=x (see
description for details
of arguments)
SNO=xxxx (see
description for details
of arguments)
ESN=xxxxxxxxx (see
description for details
of arguments)
EID=aaaabc (see
description for details
of arguments)
Rev. 1.3