Access the Internal Modules
To access the internal modules on the router, you must first disconnect from the power source and then remove the chassis cover. On how to remove and later replace the chassis cover on the routers, see the Replacing the Cover section for instructions.
![]() Warning |
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 |
Replace the Chassis Cover
The Cisco 1100 Series ISRs have a removable cover. Do not run the router without the cover. This can cause the router to overheat very quickly. To remove the chassis cover, use a number-2 Phillips screwdriver and perform the following tasks:
Remove the Cover
To remove the cover, perform the following steps:
Procedure
| Step 1 |
Read the Safety Warnings and disconnect the power supply before you perform any module replacement. |
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| Step 2 |
Confirm the router is turned off and disconnected from the power supply or power supplies. If a redundant power is used, disconnect from the redundant power supply. |
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| Step 3 |
Place the chassis on a flat surface. |
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| Step 4 |
Remove all the screws on the both sides of the router; seven on each side. |
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| Step 5 |
Pull the cover to disengage the slots along the front (bezel) edge of the chassis, as shown in the figure below. ![]()
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Replace the Cover
To replace the cover, perform the following steps.
Procedure
| Step 1 |
Before you begin, read the General Safety Warnings section and then disconnect the power supply. |
| Step 2 |
Confirm the router is turned off and disconnected from the power supply (or power supplies) if there is redundant power supply. |
| Step 3 |
Place the chassis on a flat surface. |
| Step 4 |
Locate the cover hooks on the mating slots and slide the cover towards the bezel side. |
| Step 5 |
Install seven screws on each side. |






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