Cisco Power over Ethernet Injector/Splitter. Works with any Cisco PoE radio. Features. RJ-45 Input/Output Connector. Input/Output Common Ground. Power/Data Mixer. Ethernet Switches expand to Wireless Access Point. RoHS Converter Certified by SGS ( RBU-101only). Specifications. DC Input Voltage: 48V 5 Percent. Applied from External Switching Adapter ( 90-264 Vac). DC Output Voltage: 48V 5 Percent. SK2 Pin # 4, 5 ( +48V), Pin # 7,8 ( GND). Max Output Current: 0.4A Max. SK2 Pin # 4, 5 ( +48V), Pin # 7,8 ( GND). Over Current Protection: Multi-Fuse Open. FS1 is Multi-Fuse, IH = 0.75A, IT = 1.5A. Operating Temperature: 0 degrees to 50 degrees C ( 32 degrees to 122 degrees F).