Common Equipment Faults - Comtech EF Data SLM-7650 Installation And Operation Manual

SLM-7650 Satellite Modem
Operation
3.4.3.5

Common Equipment Faults

Fault
MODULE
BATTERY/CLOCK
-12V SUPPLY
+12V SUPPLY
+5V SUPPLY
+3.3V SUPPLY
+2.5V SUPPLY
+1.8V SUPPLY
TEMPERATURE
MODEM REF ACT
MODEM REF PLL
3.4.3.6 IDR Backward Alarms
BW Alarm RX #4
BW Alarm RX #3
BW Alarm RX #2
BW Alarm RX #1
BW Alarm TX #4
BW Alarm TX #3
BW Alarm TX #2
BW Alarm TX #1
Note: Only available with IDR selected and with IDR ESC.
Interface/M&C section summary fault. Typically indicates that the interface section will
not program or the M&C has failed
Battery or clock fault.
-12V power supply fault.
+12V power supply fault.
+5V power supply fault.
+3.3 V power supply fault.
+2.5V power supply fault.
+1.8V power supply fault.
Over/Under Temperature Fault. Indicates that the internal temperature of the modem
has exceeded +75°C or is below -10°C.
Activity detector alarm at the input of the selected source for the Modem Reference.
Indicates that a signal is not being detected at the Modem Reference connector (CP3).
The Modem Reference will fall back to the internal reference if this fault is active.
Reference Phase Lock loop is Not Locked.
Receive backward alarm #4 indicator.
Receive backward alarm #3 indicator.
Receive backward alarm #2 indicator.
Receive backward alarm #1 indicator.
Transmit backward alarm #4 indicator.
Transmit backward alarm #3 indicator.
Transmit backward alarm #2 indicator.
Transmit backward alarm #1 indicator.
3-24
Cause
Revision 4
MN/SLM7650.IOM