S-31DLC20D MikroTik Compatible 1000BASE-LX 20KM SFP Transceiver

EdgeOptic's S-31DLC20D compatible is a MikroTik-coded 1000BASE-LX version of the EdgeOptic 1.25G-SFP-20DI multi-vendor SFP transceiver, using a duplex LC/UPC single-mode fiber connection at 1310 nm with a 13 dB link budget rated for 20 km reach and DDM support.

The transmitter is an FP laser with output power from −9 dBm to +3 dBm; the receiver is a PIN photodiode rated at −22 dBm sensitivity and −3 dBm overload, across a 1260 to 1360 nm band with 140 to 160 ps/nm dispersion tolerance. The data rate spans 1.063 to 1.25 Gbps on the underlying hardware, covering Gigabit Ethernet (1.25 Gbps) and 1G Fibre Channel (1.0625 Gbps); the MikroTik switching scope for this part is Gigabit Ethernet in the 1000BASE-LX class per IEEE 802.3z Clause 38.

MikroTik's own product documentation for the S-31DLC20D lists specific RouterBOARD and CCR platforms as tested and compatible, and states the part also works with non-MikroTik SFP devices. EdgeOptic's compatible ships in the same SFP form factor for that platform scope.

MikroTik's own listing rates the S-31DLC20D at a tested ambient temperature of −40°C to +70°C. EdgeOptic's compatible carries an industrial rating of −45°C to +85°C, exceeding that tested range for deployments in wider ambient conditions.

The module meets SFP MSA INF-8074i mechanical and electrical requirements, CE, and Class 1 laser safety under FDA/IEC 60825-1, with RoHS-compliant construction.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, the module ships next business day from EU stock with a lifetime warranty. For project quantity pricing or alternative vendor coding, contact our sales team.