802.3af/at POE 8 port switch is used to expand a single CAT5 Ethernet data line into 7 PoE powered data ports with up to 35W output current per port. It has a 2 pair or 4 pair PoE/Data input port (48VDC) which is compliant with 802.3at. It also has secondary dual wire terminal and 4 pin DIN connector inputs for operation from 42 to 57VDC. PoE output ports are 802.3af/at compliant with PoE voltage of 48V. The switch automatically adjusts speed for the data input up to 100BASET and supports auto crossover in the input port. No power supply included - requires 46 to 57V DC power