ML-S31D-out-3 is 1.25G SFP module with wave length 1310nm, 2 LC connectors for maximal distance 3km with singlemode fiber. SFP module supports DDM - digital diagnostics monitoring. The Industrial version of the SFP module differs from the normal one with better components and a better operating temperature range from -40°C to +85°C.
The LC connectors in the SFP module have UPC type grinding.
Modules are compatible with all MikroTik products and with others marked as "Cisco compatible".