Accessing Internal Modules; Removing And Replacing The Chassis Cover - Cisco 2900 series Installation Manual

Accessing Internal Modules

Accessing Internal Modules
See the following sections for instructions about accessing the internal modules on the router.
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Removing and Replacing the Chassis Cover

Cisco 2900 series routers have a removable cover. Cisco 3900 routers do not have a removable cover. All
serviceable components and assemblies are easily removed on the Cisco 3900 series ISR by simply
sliding them out of the chassis.
Before opening the unit, disconnect the telephone-network cables to avoid contact with
Warning
telephone-network voltages. Statement 1041
Use a number-2 Phillips screwdriver to perform the following tasks.
Note
Removing the Cover
To remove the cover, perform the following steps.
Step 1 Read the
any module replacement.
Confirm the router is turned off and disconnected from the power supply or power supplies. If a
Step 2
redundant power is used, disconnect from the redundant power supply.
Place the chassis on a flat surface.
Step 3
Remove the three cover screws at the back of the router cover. See
Step 4
Lift the cover from the back edge to a 45-degree angle.
Step 5
Pull the cover toward you to disengage the slots along the front (bezel) edge of the chassis. See
Step 6
Figure
Replacing the Cover
To replace the cover, perform the following steps.
Read the
Step 1
replacement.
Confirm the router is turned off and disconnected from the power supply or power supplies. If a
Step 2
redundant power is used disconnect from the redundant power supply.
Place the chassis on a flat surface.
Step 3
Hold the cover at a 45-degree angle and insert the cover tabs into the slots along the front (bezel) edge
Step 4
of the chassis. See
Cisco 2900 Series and 3900 Series Hardware Installation Guide
5-4
Cisco 2900 series routers—
Cisco 3900 series routers—
"Safety Warnings" section on page 5-2
5-1.
Safety Warnings, page 5-2
Figure 5-1.
Chapter 5
Removing and Replacing the Chassis Cover, page 5-4
Removing and Replacing the Services Performance Engine, page 5-6
and disconnect the power supply before you perform
and disconnect the power supply before you perform any module
Installing and Upgrading Internal Modules and FRUs
Figure 5-1.
OL-18712-03