Troubleshooting The Power Supply - Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual

Chapter 4 Troubleshooting
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If any LEDs on the supervisor engine front panel are red or orange, see the
section on page
If you have a redundant supervisor engine, refer to the Cisco 7600 Series Internet Router Software
Configuration Guide or the Cisco 7600 Series Internet Router IOS Software Configuration Guide for
descriptions of how the redundant supervisor engine comes online and how the software images are
handled.
For a complete description of the supervisor engine LEDs, refer to the Cisco 7600 Series Internet Router
Module Installation Guide.
Verify that the STATUS LEDs on the supervisor engine and on each module are green when the
Step 3
supervisor engine completes initialization. This LED indicates that the supervisor engine or modules are
receiving power, have been recognized by the supervisor engine, and contain a valid Flash code version.
This LED does not indicate the state of the individual interfaces on the modules. If a STATUS LED is
red or orange, see the
If the boot information and system banner are not displayed, refer to the Cisco 7600 Series Internet
Step 4
Router Module Installation Guide to verify that the terminal is set correctly and that it is connected
properly to the supervisor engine console port.

Troubleshooting the Power Supply

Perform these steps when troubleshooting the power supply to isolate a power subsystem problem:
Verify that the INPUT OK LED on the power supply is green.
Step 1
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OL-4503-26
The STATUS LED flashes orange once and stays orange during diagnostic boot tests. It turns green
when the module is operational (online). If the system software is unable to start up, this LED stays
orange.
The SYSTEM LED turns green, indicating that all chassis environmental monitors are reporting that
the system is OK. If one or more environmental monitor reports a problem, the SYSTEM LED is
orange or red.
The ACTIVE LED turns green, indicating that the supervisor engine is operational and active. If the
supervisor engine is in standby mode, the ACTIVE LED is orange.
Each LINK LED flashes orange once, stays orange during diagnostic boot tests, and turns green
when the module is operational (online). If no signal is detected, the LINK LED turns off. The LINK
LED blinks orange if the port is bad.
4-7.
"Troubleshooting Modules" section on page
If the INPUT OK LED is green, the AC or DC source is good and the power supply is functional.
If the INPUT OK LED is off, first ensure that the power supply is flush with the back of the chassis.
Turn the AC power supply or AC PEM power switch or DC circuit breaker to the Off position,
tighten the captive installation screw(s), and then turn the power on.
If the INPUT OK LED remains off, there might be a problem with the AC source, the DC source, or
the power cable.
Turn off the power to the router, connect the power cord to another power source if one is available,
and turn the power On.
If the INPUT OK LED is green, the problem is the first power source.
Troubleshooting the Power Supply
"Troubleshooting Modules"
4-7.
Cisco 7600 Series Router Installation Guide
4-3