Cisco 3745 Fan Assembly and Bezel

Unanswered Question
Dec 19th, 2008

Hi All,

Can anyone tell me with certainty if a 3745 fan assembly and bezel can be replaced without powering down the router?



I have this problem too.
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Giuseppe Larosa Sun, 12/21/2008 - 04:05

Hello Michael,

the procedure doesn't tell it explicitly

but at the beginning of the chapter it says:

Disconnect all power before doing the following:

-Working on or near power supplies

-Installing or removing a router chassis or network processor module

-Performing most hardware upgrades

So it looks like possible to do it if you can access the front panel see the drawings.

I think we had some field engineer that did on the fly on some site.

The power supplies are on the other side.

Hope to help


Danilo Dy Sun, 12/21/2008 - 22:00

Yes, you can replace it without shutting down the router. There's a DC power-socket connecting the chassis fan to the MB. Once you open the front (2 screws) of the chassis (which is the fan assembly) it will disconnect the fan power from the MB.


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