What This Product Does\n TL-FC111PB-20 is a 10/100 Mbps media converter with 802.3af Po E output, providing 1&151; 10/100 Mbps Po E RJ45 port & 1&151; 100 Mbps SC fiber port, which can convert between electrical & optical signals. With up to 20 km fiber transmission distance & 802.3af Po E output, the media converter is designed to address the needs of flexible long-range surveillance deployment with optical fibers. It provides an economical path towards extending the distance of an existing network.\n How This Product Works\n TL-FC111PB-20 adopts WDM (wavelength division multiplexing) technology, helping send & receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC111PB-20 transmits data at 1310 nm wavelength & receives data at 1550 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC111PB-20 should send data at a wavelength of 1550 nm & receive data at a wavelength of 1310 nm. TP-Link another media converter TL-FC111A-20 is one of the products that can cooperate with TL-FC111PB-20.\n\n Other Features\n Besides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.\n\n\n\n\n\n Product Model: 10/100 Mbps WDM Media Converter with 1-Port Po E\n Datasheet: https://d 5bm 31en 4blvo.cloudfront.net/pdf/mmo_90126725_1618561591_4338_20058.pdf&pipe; Datasheet: https://d 5bm 31en 4blvo.cloudfront.net/pdf/mmo_90126725_1618561598_9767_35950.pdf\n\n