Comtech EF Data SDM-650B - Manual (Page 247)

SDM-650B Satellite Modem Remote Control Operation
Rev. 6 B–71
Where: Character “f”: Common equipment fault status character 2.
Bit 6 = 1 always.
Bit 5 = Battery fault.
Bit 4 = +5V fault.
Bit 3 = +12V fault.
Bit 2 = -12V fault.
Bit 1 = not used.
Bit 0 = not used.
Where: Character “g”: Interface transmit side faults character 1.
Bit 6 = 1 always.
Bit 5 = not used.
Bit 4 = not used.
Bit 3 through Bit 0 = Binary representation (0 to 10) of the number of interface transmit
side stored faults.
Where: Character “h”: Interface transmit side faults character 2.
Bit 6 = 1 always.
Bit 5 = Transmit clock activity fault.
Bit 4 = Transmit synthesizer PLL fault.
Bit 3 = not used.
Bit 2 = not used.
Bit 1 = not used.
Bit 0 = not used.
Where: Character “i”: Interface receive side faults character 1.
Bit 6 = 1 always.
Bit 5 = MUX lock fault.
Bit 4 = Buffer clock activity fault.
Bit 3 through Bit 0 = Binary representation (0 to 10) of the number of interface receive
side stored faults.
Where: Character “j”: Interface receive side faults character 2.
Bit 6 = 1 always.
Bit 5 = Receive synthesizer PLL fault.
Bit 4 = not used.
Bit 3 = not used.
Bit 2 = not used.
(See Note) Bit 1 = Buffer overflow fault.
(See Note) Bit 0 = Buffer underflow fault.
Note: Available with buffer support hardware only.