Comtech EF Data SNM-1002 User Manual
Page 163
SNM-1002 LinkSync
Modem
Revision 2
Remote Control Operation
MN/SNM1002.OM
A–37
Bulk
Consoli-
dated
Status
Faults
Command:
Response:
r'cr''lf']
This command causes all modem fault status to be
returned. To reduce the length of the response, fault
status is embedded into the bit structure of the
characters that are returned. Faults are indicated by a
binary 1 in the designated bit position.
Character 'a': Modulator fault status character 1.
Bit 6 = 1 always.
Bit 5 = Modulator module fault.
Bit 4 = RF output status, actual not programmed
status (1 = on, 0 = off).
Bit 3 through Bit 0 = Binary representation (0 to 10) of
the number of modulator stored faults.
Character 'b': Modulator fault status character 2.
Bit 6 = 1 always.
Bit 5 = IF Synthesizer.
Bit 4 = reserved.
Bit 5 = Data Clock Synthesizer.
Bit 2 = I Channel.
Bit 1 = Q Channel.
Bit 0 = AGC Level.
Character 'c': Modulator fault status character 3.
Bit 6 = 1 always.
Bit 5 = Modem Reference PLL Lock.
Bit 4 = reserved.
Bit 3 = Configuration.
Bit 2 = Modem Reference Activity.
Bit 1 = reserved.
Bit 0 = reserved.
Character 'd': Demodulator fault status character 1.
Bit 6 = 1 always.
Bit 5 = Demod module fault.
Bit 4 = Carrier detect status (0 for decoder lock).
Bit 3 through Bit 0 = Binary representation (0 to 10) of
the number of demodulator stored faults.
Character 'e': Demodulator fault status character 2.
Bit 6 = 1 always.
Bit 5 = IF Synthesizer Lock.
Bit 4 = reserved.
Bit 3 = I Channel.
Bit 2 = Q Channel.
Bit 1 = reserved.
Bit 0 = BER threshold.
Character 'f': Demodulator fault status character 3.
Bit 6 = 1 always.
Bit 5 = reserved.
Bit 4 = Configuration.
Bit 3 = reserved.
Bit 2 = reserved.
Bit 1 = reserved.
Bit 0 = reserved.