TP-LINK MC112CS is reliable media converter enabling the transmission of Fast Ethernet data stream in one single-mode optical fiber over distances up to 20 km. The media converter has one SC connector used to transmit and receive optical signals. It is possible due to the use of wavelength-division multiplexing technology (WDM) – different wavelengths of laser light carry different signals, over one strand of fiber. It significantly lowers installation costs. The device transmits optical signal in the II transmission window (1310 nm) and receives optical signal in the III window (1550 nm). Sensitivity of the receiver and output power of the transmitter are adapted to transmit optical information up to 20 km. TP-LINK devices have MDI/MDIX auto detection feature and automatically find and set the fastest connection speed and mode. “Store and forward” mechanism allows to verify the received data using checksum function. TP-LINK media converters are fully compatible with IEEE 802.3 and IEEE 802.3u standards. Their installation is very simple thanks to “Plug and Play” feature. The LED indicators show current operating status.