I have a customer who reports that he cannot get an AP5181 to work with 803.3AF power from a Cisco 35xx switcvh. THe AP5131 works just fine. At the present time the customer is using the Motorola power injector to power the AP5181 Does anyone have any suggestions on how to address this (the manuals say both devices are 802.3af complaint) ..my guess is that the device is broken