The MX-46-FX-SL-SC-PoE from American Fibertek is a Ethernet - FX Fiber Port + 2 RJ45 Ports - SM. The MX-46-FX-SL-SC-PoE transmits and receives (2) copper 10/100/1000 Base-T Ethernet signals at the RJ45 ports and (1) optical 100 Base-FX over 1 or 2 singlemode fibers. The system is comprised of two units forming a point-to-point communications link. The 46SL-PoE sources power to devices from the RJ45 ports over the copper connection. Both RJ45 ports may be used to deliver low power 802.3af (15W) to devices. A single RJ45 port is used to deliver high power 802.3at (30W) to a single device. An external power supply is required for the PoE module. The system is designed to be completely transparent with auto negotiation features which automatically configures the unit for the correct speed (10/100 Base-T). Auto MDI/MDIX operation eliminates the potential need for crossover cables. Diagnostic indicators provide a quick visual indication of system status.