Comtech EF Data CDM-550T Manual page 135

CDM-550T Satellite Modem
Parameter Command
Type (InstructionC
ode and
qualifier)
Software N/A
Revision
Faults N/A
and
Status
Rev. 1.3
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
4 bytes, Query only.
numerical Unit returns the value of internal software revision installed in
the unit, in the form x.xx
Example: SWR=1.03 (Ver 1.03)
5 bytes, Query only. Unit returns the current fault and status codes for
first 3 bytes the Unit (hardware), Tx Traffic and Rx Traffic, in the form
alpha-numerical abcde, where:
4th and 5th a = Unit fault status, b = Tx Traffic status,
bytes, value of 0 c = Rx Traffic Status, d = Change in Fault Status since last poll
or 1 (0 = none, 1 = change), e = Change in Unit Configuration
since last poll (0 = none, 1 = change)
Unit faults:
0 = No faults
1 = Power supply fault, 5 volts
2 = Power supply fault , 12 volts
3 = Power supply fault, -5 volts
4 = Power supply fault, 18 volts
5 = Power supply fault, -12 volts
6 = RAM load fail
7 = Tx synthesiser lock
8 = Rx synthesiser
9 = Power cal Checksum error
A = FPGA main chain load fail
B = Turbo FPGA load fail
Tx Traffic status:
0 = Tx traffic OK
1 = No clock from terrestrial interface
2 = Tx FIFO slip
3 = AIS detected on incoming data
4 = AUPC upper limit reached
Rx Traffic status:
0 = Rx Traffic OK
1 = Demodulator unlocked
2 = AGC Alarm - signal level too high
3 = Frame sync lost (Reed-Solomon or EDMAC)
4 = Buffer Underflow
5 = Buffer Overflow
6 = AIS detected on incoming data
7 = Eb/No threshold exceeded
Response to Command Query
(target to controller) (Instruction
Code and
qualifier)
N/A SWR?
N/A FLT?
Remote Control
Response to query
(target to controller)
SWR=x.xx (see
description for details
of arguments)
FLT=abcde (see
description for details
of arguments
15–21