Which devices support the “Power over Ethernet” (PoE) function?
Description: Power over Ethernet (PoE) is a power supply procedure for network components in compliance with IEEE 802.3af and 802.3at. With PoE, power and data are transferred together via the Ethernet cables used which connect the network components. This eliminates the need for addition power lines and thus saves investment and maintenance costs. PoE can be used with all network components that consume little power (max. 12.95 Watt). In compliance with standard IEEE 802.af, with 10Base-T and 100Base-TX two wire pairs of the Ethernet cable are used for power supply. In compliance with standard IEEE 802.at, with 100Base-T all four wire pairs of the Ethernet cable are used for power supply. There are two ways of supplying power with PoE: • Method 1: Redundant wires With Fast Ethernet, the wire pairs 1, 2 and 3, 6 are for data transfer. In this case, wire pairs 4, 5 and 7, 8 are used for power supply. If there are only 4 wires in the Ethernet cable, the power supply is modulated onto wir
