Cisco VG30D, User Manual

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10-5
Cisco VG30D Voice Gateway User Guide
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Chapter 10 Fault Determination
Diagnostic Procedures
Power Supply
Symptoms
No LEDs illuminated.
Diagnostic Actions
Step 1
Check whether there is power to the unit and the unit is switched on.
Step 2
Check for fuse failure in the power feed or on the rear panel of the unit.
Step 3
If you still cannot locate the problem, you must return the Cisco VG30D Voice Gateway unit for repair.
.
Self Test Failure
Symptoms
The Power LED remains amber for more than 1 minute.
Diagnostic action
The hardware self-test failed.
If the BNC cables (75 E1) are connected, power OFF the unit and disconnect the cables. Repeat the test.
If the unit successfully completes self-test, the Tx and Rx cables are reversed.
Note
The unit will fail self test if the E1 ports are looped back to each other.
Power OFF and connect a dumb terminal (or computer with a terminal emulation program) to the Craft
Port and set the Craft Switch to
CRAFT Mode. Power ON to reset the unit. The Cisco VG30D Voice
Gateway will Self Test again, and the terminal will display any failures. If no Self Test failures exist, but
the
Power LED remains amber, check that the POST switch has not been left in the Factory setting. If
it has, power OFF the unit, switch the POST switch to POST , and power ON the unit. It should now pass
and exit Self Test.
If the unit continues to fail the self test, take the following action:
• Contact your second line support engineers for assistance, if needed.
•
Return the failed unit for repair, with a note of the errors that were reported to the terminal.
Symptoms
The Power LED remains amber for more than 1 minute, the S2 status LED is blinking and all other status
LEDs are off.
Diagnostic action
Check whether the Craft cable is attached to the unit but the other end of the cable is not attached to a
dumb terminal (or computer with a terminal emulation program). If this is the case, power OFF the unit,
disconnect the cable and then power ON the unit. It should now pass and exit Self Test.
Alternatively, the IP addresses and sub-net masks may not have been configured.