Patton electronics 3092, Getting Started Manual

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5 • Troubleshooting and maintenance Model 3092 iDSL DACS Getting Started Guide
56 Fault analysis
Fault analysis
The following procedures outline steps you should follow when troubleshooting a Model 3092 malfunction.
1. If possible, talk to the person who filed the trouble complaint and determine the operational symptoms.
Record the symptoms on the appropriate trouble report form (include the front panel LED indications).
2. Refer to table 4 for LED definitions and compare the recorded results from the trouble report against those
in the table, then refer to the section recommended in the table for the maintenance procedure that will
repair the malfunction.
Table 4. LED definitions
LED Location Color Status Meaning
POWER Front panel Green On solid Power is being applied. No action recommended.
Flashing Either one of the external power sources or one of
the 3092's power supplies has failed. The Model
3092 will function normally indefinitely with one
power supply. To verify the suspected problem,
contact Patton Technical Support to determine
whether the DACS needs to be replaced or not.
Off No input power is being applied. Verify that
power is being supplied to the Model 3092.
CPU FAIL Front panel Red On solid CPU is unable to load the software from FLASH to
RAM for operation. As soon as possible, unplug
both power cables from the Model 3092, wait 30
seconds, then plug the cables back into the Mode
3092 to see if the problem disappears. If the CPU
FAIL LED remains lit after the Model 3092 com-
pletes the power-up cycle, contact Patton Technical
Support to determine whether the DACS needs to be
replaced or not.
Off The CPU is operating normally. No action recom-
mended.
ALARM Front panel Red On solid A minor alarm condition has been detected.
Flashing A major alarm condition has been detected.
Off The Model 3092 is operating normally. No action
recommended.
SYSTEM Front panel Green Flashing The Model 3092 is operating normally. No action
recommended.
Off The Model 3092 is not functioning properly. As
soon as possible, unplug both power cables from
the Model 3092, wait 30 seconds, then plug the
cables back into the Mode 3092 to see if the prob-
lem disappears. If the SYSTEM LED remains lit
after the Model 3092 completes the power-up
cycle, contact Patton Technical Support to deter-
mine whether the DACS needs to be replaced or
not.