Removing And Replacing The Fan Assembly - Cisco 7609-S Installation Manual

Removing and Replacing the Fan Assembly

Step 9
Caution
Caution
Step 10
Step 11
Step 12
Removing and Replacing the Fan Assembly
Cisco 7609 Internet Router Installation Guide
5-12
After ensuring that all wire connections are secure, reinstall the terminal block
cover.
To prevent a short circuit or shock hazard after wiring the DC-input power
supply, reinstall the terminal block cover.
In a system with dual power supplies, connect each power supply to a separate
input line. In case of a line failure, the second source will most likely still be
available.
Remove the tape from the circuit breaker switch handle and restore power by
moving the circuit breaker switch handle to the On (|) position.
Turn the power switch to the On (|) position on the power supply. Turning the
power switch on also engages a pawl that locks the power supply in the chassis.
Verify power supply operation by checking that the power supply front panel
LEDs are in the following states:
• INPUT OK LED is green
FAN OK LED is green
•
OUTPUT FAIL LED is not lit
•
If the LEDs indicate a power problem, see the
section on page 4-3.
This section describes how to remove and replace fan assemblies for the
Cisco 7609 Internet Router. A flat-blade or number 2 Phillips-head screwdriver is
required to perform this procedure.
Chapter 5 Removal and Replacement Procedures
"Identifying Startup Problems"
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