Hi Alicia,
PoE option comes in two parts on 880 routers, the PoE daughter board and a separate power supply. According to the guide:
"The Cisco 880 series ISRs can include an optional PoE module that provides power to 802.3af-compliant devices connected to ethernet ports 0 and 1. If this feature was not configured with the factory order, SKU 800-IL-PM-2, you must order and install it to enable the PoE function. The PoE power supply, SKU 800-ILPM-4, is also required. "
http://www.cisco.com/en/US/docs/routers/access/800/860-880-890/hardware/installation/guide/1Overview880-860.html#wp1176035
Kind Regards,
Ivan
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Kind Regards,
Ivan