The TP-SW5G-24HP Power Over Ethernet (POE) 10/100/1000Mb switch offered by Tycon Power Systems is a fully automatic high speed 5 port Ethernet switch with up to 35 Watts of POE power per port 140W Max Total. It complies with the IEEE802.3af/at specifications for valid POE device detection. The unit supplies power to the remote device on the unused Ethernet pins 4,5(V+) and 7,8(V-). The Ethernet spec supports distances up to 100m (328 feet) between the POE switch and the remote device. The switch accepts DC power from 12-36VDC which makes it an excellent choice for those systems powered by battery power. There are 2 power inputs for attachment of primary and backup power sources. It also accepts 802.3af or 802.3at power thru port 5. Applications Wireless Access Points and Client Devices IP Phone and Security Camera Systems