Opening a Cisco 3900 CME router

Cisco 3900 is a ISR router used to host the Cisco Call Manager Express phone system.

I recently had to do a lot of trouble shooting on one.  I had the opportunity to take it apart (actually two of them as I was swapping parts).  I took several pics and here they are

this unit contains a SPE-150 with several VIC cards and a T-1 card.  Also, it has an SRE-900 card.

.  This is a pic with the SPE-150 cards out.

These are a couple of SPE-150 cards that connect to the back plane.

Here's a little closer.  The pic is hi-res, so you can click to enlarge it.

Also, I had to remove one of the power supplies to put in the other one.  Here's what that bay looks like.

On the left is the cover with the 5 fans.