1[Signal Transmission] One RJ-45 electrical port and a single fiber SC optical port to realize the photoelectric signal conversion between the stranded wire and the optical fiber, only one core optical fiber can complete a signal transmission. 2[20KM Transmission Distance] Twisted pair electrical signal and optical signal are converted to each other to ensure smooth transmission, transmission distance limit of the network is extended from 150m of copper wire to 20KM. 3[Single Mode Fiber Transceiver] Optoelectronic integrated module, providing good optical and electrical characteristics to ensure reliable data transmission and long working life. 4[With Indicator Lights] This fiber optic transceiver is equipped with 6pcs LED indicators, which can help you accurately determine the fault location and is easy to connect and use. 5[Applicable Occasion] Suitable for a variety of work environments, community networks, campus enterprise networks, fiber optic users, intelligent broadband, surveillance security and other fields.