MikroTik S-31DLC20D 1.25G Single-Mode SFP Module | 20km LC Transceiver
The MikroTik S-31DLC20D is a high-performance 1.25Gbps SFP optical transceiver designed for reliable long-distance fibre networking. Operating at a 1310nm wavelength, it supports single-mode fibre (SMF) connections over distances of up to 20 kilometres using a Dual LC UPC connector. The module features Digital Diagnostic Monitoring (DDM/DDMI), allowing real-time monitoring of parameters such as temperature, voltage, transmit power, and receive power for improved network management. Compatible with MikroTik routers and switches as well as many third-party networking devices, the S-31DLC20D is ideal for enterprise networks, ISPs, campus environments, and fibre backbone deployments. It operates reliably in temperatures ranging from -40°C to +70°C, making it suitable for demanding indoor and outdoor installations.