SFP - 1000BASE-BX SBU34020DR2B - SBU34020DRxB is a high performance transceiver module for Gigabit Ethernet and Fast Ethernet data links over one single mode fibre. The maximum reach is 20km. The emitter is a 1310nm Fabry-Perot (FP) laser, the receiver a 1490nm PIN photodiode. Consequently, a module with a 1490nm emitter and a 1310nm receiver is required at the opposite side of the link. The recommended counterpart is SBD43020DRxx. This transceiver module is compliant with the Small Form-factor Pluggable (SFP) Multisource Agreement (MSA) and hot pluggable. Always contact Skylane Optics commercial agents for compatibility with different equipment platforms. This part number is a Skylane Generation B transceiver.