A colleague and I agreed that there was very little information available on what is required for PoE on a Cisco 887, so I figured I’d document it for anyone else out there.
First things first, you’ll need to get yourself the bits you need. This comprises of two parts, a PoE power adapter and a daughter board. Both components should fall under the 800-IL-PM-2 part number.
Pop open the chassis (one screw on either side, and another at the back) and note the following location: