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SLM-7650 Satellite Modem
Remote Control Specifications
Bit 4 = Selected Transmit Clock Activity.
Bit 3 = SCT Synthesizer PLL Lock.
Bit 2 = SCT Reference Clock Activity.
Bit 1 = Transmit Clock PLL Fault.
Bit 0 = drop fault.
Character 'i': Interface transmit side faults character 3.
Bit 6 = 1 always.
Bit 5 = reserved.
Bit 4 = reserved.
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 = RX Interface Module.
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 clock PLL lock.
Bit 4 = Buffer clock activity.
Bit 3 = Receive Data Loss/AIS.
Bit 2 = Demux lock.
Bit 1 = RX 2047 Pattern lock.
Bit 0 = reserved.
Character 'l': Interface receive side faults character 3.
Bit 6 = 1 always.
Bit 5 = Buffer underflow.
Bit 4 = Buffer overflow.
Bit 3 = Buffer full.
Bit 2 = insert fault.
Bit 1 = receive backward alarm.
Bit 0 = Frame BER.
Character 'm': Common equipment fault status character 1.
Bit 6 = 1 always.
Bit 5 = Monitor & Control Module.
Bit 4 = reserved.
Bit 3 through Bit 0 = Binary representation (0 to 10) of
the number of common equipment stored faults.
Character 'n': Common equipment fault status character 2.
Bit 6 = 1 always.
Bit 5 = Battery/Clock.
Bit 4 = -12V power supply.
Bit 3 = +12V power supply.
Bit 2 = +5V power supply.
Bit 1 = +3.3V power supply.
Bit 0 = +2.5V power supply.
Character 'o': Common equipment fault status character 3.
Bit 6 = 1 always.
Bit 5 = +1.8V power supply.
Bit 4 = Temperature.
Bit 3 = Modem reference PLL.
Bit 2 = Modem reference activity.
Bit 1 = reserved.
Bit 0 = reserved.
Character 'p': Interface Backward Alarm status character 1.
A–45
Revision 4
MN/SLM7650.IOM
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