These PoE transceiver units allow ethernet and power to be sent along coaxial cabling. The 48-56V power supply (M 8976A) can be added for powering a 802.3at PoE device (such as an IP camera) at the receiving end. A master transceiver and camera transceiver are required to make a link. Alternatively, a transceiver unit may be used with the S 9267 four way splitter cable to connect up to four camera transceivers to a single transceiver located near the switch. Max distance up to 300m over RG6 coax.