Comtech EF Data DD240XR Rev Е - Manual (Page 60)

User Interfaces DD240XR High-Speed Digital Demodulator
4-40 MN-DD240XR – Rev. E
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Latched Major
Alarms 1
Latched Major
Alarms 2
Latched Minor
Alarms 1
Latched Minor
Alarms 2
Latched
Common Faults
+5 Voltage
+12 Voltage Bit 1 = +12 V alarm
Bit 2 = +5 V alarm
Bit 3 = +24 V alarm
Bit 4 = reserved for temperature alarm
Bit 5 = LNB DC Supply
Bit 6 = Demod HW Fault
Bit 7 = reserved
0 = no alarm, 1 = alarm
Bit 0 = loss of signal lock
Bit 1 = loss of synthesizer PLL lock
Bit 2 = input level alarm
Bit 3 = reserved for POST alarm
Bit 4 = FPGA Configuration alarm
Bit 5 = reserved for deframer FIFO fault
Bit 6 = reserved for deframer PLL lock fault
Bit 7 = carrier subsystem comm fault
0 = no alarm, 1 = alarm
Bit 0 = demod subsystem comm fault
Bit 1 = loss of clock activity
Bit 2-7 = reserved
0 = no alarm, 1 = alarm
Bit 0 = reserved for loss of buffer clock
Bit 1 = loss of Rx data activity
Bit 2 = loss of demodulation lock
Bit 3 = loss of inner FEC lock
Bit 4 = loss of outer FEC lock
Bit 5 = loss of dvb frame lock
Bit 6 = Eb/No alarm
Bit 7 = reserved
0 = no alarm, 1 = alarm
Bit 0 = terrestrial buffer underflow
Bit 1 = terrestrial buffer overflow
Bit 2 = terrestrial buffer near empty
Bit 3 = terrestrial buffer near full
Bit 4 = exc clock activity
Bit 5 = loss of exc pll lock
Bit 6 = Ethernet Dest ID
Bit 7 = Ethernet Link Status
0 = no alarm, 1 = alarm
Bit 0 = -12 V alarm
Bit 1 = +12 V alarm
Bit 2 = +5 V alarm
Bit 3 = +24 V alarm
Bit 4 = reserved for temperature alarm
Bit 5 = LNB DC supply
Bit 6 = Demod HW Fault
Bit 7 = reserved
0 = no alarm, 1 = alarm
with implied decimal point. 49 = +4.9V
with implied decimal point. 118 = +11.8V