DIGISOL The Small Form Factor Pluggable (SFP) transceiver module is specifically designed for the high performance integrated full duplex data link over a single optical fiber. The transceiver module is compliant with the SFP Multi Source Agreement (MSA) and Digital Diagnostic Monitoring With the hot pluggability, these modules offer an easy way to be installed into SFP MSA compliant ports at any time without the interruption of the host equipments operating online. DG-SA1134-BDT and DG-SA1134-BDR is Bi-Directional SFP transceiver with data transmission up to 40km on a single-mode (9/125μm) optical fiber.