Troubleshooting; Alarms; Spare Fuse Kit; Related Documents - Cisco VCO/4K Mechanical Assemblies

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7.0 TROUBLESHOOTING

The following two events occur simultaneously when voltage monitoring on the control board

of the power supply module detects either an over-voltage or an under-voltage condition:

•

An alarm is sent to the Alarm Arbiter card (AAC) and is displayed on the AAC—the

red MAJOR LED turns on; the yellow AUX1 LED turns on.

•

The power LED on the power supply module turns red.

When these two events occur, you must replace the power supply module. Refer to Section 6.1

and Section 6.2.

One spare fuse kit containing two 25-amp fuses comes with the VCO/4K. A fuse is on the back

of each power supply module.

For additional information on the VCO/4K power subsystem, refer to the following

publications:

•

Cisco VCO/4K Site Preparation Guide

•

Cisco VCO/4K Hardware Installation Manual

•

Cisco VCO/4K System Maintenance Manual

•

Ring Generator Instruction Sheet (included with the ring generator kit)

Troubleshooting

VCO/4K Power Subsystem 1-15

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