All D-Link PoE switches (DES-1316K, DES-1526) use mode B. NonD-Link switched may use mode A or B, thus connecting a DWL-P50may not power up the end device.

PoE

There are 8 wires going through a CAT5 cable. Only 4 of them areused for data traffic, Power Over Ethernet is a way of usingthe remaining 4 wires to power up a remote device.

Mode A   (pin 1,2,3,6)

pins 3 & 6 of the RJ-45 modular connector are to be used for48 volt positive power ( ); pins 1 & 2 are used for negativepower (-).

Mode B   (pin 4,5,7,8)

pins 4 & 5 of the RJ-45 modular connector are to be used for48 volt positive power ( ); pins 7 & 8 are used for negativepower (-).