You are planning the installation of several wireless access points in a large warehouse. The access points are typically located on the ceiling far away from power sources. Which technology could be used to power the device?
Power over Ethernet (PoE) allows a device to use an ethernet cable as a power source and it's data/network connection. Using PoE the wireless access points will not need separate power and data connections.
Power over Ethernet or PoE describes any of several standard or ad hoc systems which pass electric power along with data on twisted pair Ethernet cabling This allows a single cable to provide both data connection and electric power to devices such as wireless access points, IP cameras, and VoIP phones There are several common techniques for transmitting power over Ethernet cabling Three of them have been standardized by IEEE 8023 since 2003 These standards are known as Alternative A, Alternative B, and 4PPoE For 10BASE-T and 100BASE-TX, only two of the four signal pairs in typical Cat 5 cable are used