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Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Chapter 4 Removal and Replacement Procedures
Removing and Installing the Backplane Modules
Verifying the Installation
Note
To check the operation of the fans, you need to power up the chassis.
To verify that the new fan tray assembly is installed correctly and is operating properly, follow these
steps:
Step 1
Listen for the fans; you should immediately hear them operating. If you do not hear them, ensure that
the fan tray assembly is inserted completely in the chassis and that the faceplate is flush with the switch
back panel.
Step 2
The fan tray assembly LED should light and be green.
Step 3
If after several attempts the fans do not operate, or if you experience trouble with the installation (for
instance, if the captive installation screws do not align with the chassis holes), contact the Cisco TAC
for assistance.
Removing and Installing the Backplane Modules
There are five redundancy modules (also called mux buffers) and one clock module on the
Catalyst 4507R-E and the Catalyst 4507R+E switch chassis backplane. The Catalyst 4510R-E and the
Catalyst 4510R+E have eight redundancy modules on their backplane. They are accessible from the front
of the chassis by removing all of the supervisor engines, switching modules, and blank slot covers. There
are two types of redundancy modules, and they are interchangeable.
The clock module replacement procedure is identical to the redundancy module replacement procedure.
Both the redundancy modules and the clock modules are not hot-swappable; the switch must be shut
down to replace them.
To replace the backplane modules, follow these steps:
Step 1
Make sure that you are grounded with an ESD strap.
Step 2
Turn off the power to the chassis.
Step 3
Make a record of all network interface cable connections to the switch. Also, make a record of the
switching modules and their slot assignments. This step will aid you when you return the system to
operation after the removal and replacement procedure is completed.
Step 4
Disconnect all of the network interface cables to the switch and carefully set them aside.
Step 5
Remove all supervisor engines and switching modules from the chassis and carefully place each one in
a separate antistatic bag or on an individual antistatic mat.
Caution
Do not stack modules on top of each other. This action can cause serious damage to the modules.
