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Remote Control Operation
B–48
Character 'h': Interface transmit side faults character 2.
Bit 6 = 1 always.
Bit 5 = Transmit Data/AIS.
Bit 4 = Transmit Synthesizer PLL Lock.
Bit 3 = Selected Transmit Clock Activity.
Bit 2 = reserved.
Bit 1 = Configuration.
Bit 0 = Drop fault.
Character 'i': Interface transmit side faults character 3.
Bit 6 = 1 always.
Bit 5 = TX Audio Channel 1 Clip.
Bit 4 = TX Audio Channel 2 Clip.
Bit 3 = reserved.
Bit 2 = reserved.
Bit 1 = reserved.
Bit 0 = reserved.
Character 'j': Interface receive side faults character 1.
Bit 6 = 1 always.
Bit 5 = Insert fault.
Bit 4 = reserved.
Bit 3 through Bit 0 = Binary representation (0 to 10) of
the number of interface receive side stored faults.
Character 'k': Interface receive side faults character 2.
Bit 6 = 1 always.
Bit 5 = Buffer Underflow.
Bit 4 = Buffer Overflow.
Bit 3 = Receive Data Loss/AIS.
Bit 2 = Frame BER.
Bit 1 = Receive Backward Alarm.
Bit 0 = Selected Buffer Clock Activity.
Character 'l': Interface receive side faults character 3.
Bit 6 = 1 always.
Bit 5 = Buffer Clock PLL Lock.
Bit 4 = Demux Lock.
Bit 3 = 2047 Pattern Lock Detect.
Bit 2 = Buffer Full.
Bit 1 = reserved.
Bit 0 = Configuration.
Character 'm': Interface receive side faults character 4.
Bit 6 = 1 always.
Bit 5 = RX Audio Channel 1 Clip.
Bit 4 = RX Audio Channel 2 Clip.
Bit 3 = reserved.
Bit 2 = reserved.
Bit 1 = reserved.
Bit 0 = reserved.
Character 'n': Common equipment fault status character 1.
Bit 6 = 1 always.
Bit 5 = Monitor & Control Module.
Bit 4 = Interface Module.
Bit 3 through Bit 0 = Binary representation (0 to 10) of
the number of common equipment stored faults.
Character 'o': Common equipment fault status character 2.
Bit 6 = 1 always.
Bit 5 = Battery/Clock.
Bit 4 = +5V power supply.
Bit 3 = reserved.
Bit 2 = +12V power supply.
Bit 1 = -12V power supply.
Bit 0 = reserved.
SDM-300A Satellite Modem
Rev. 4
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