etsysOidPhyMGBICxBX40xD 1.3.6.1.4.1.5624.2.2.501

Enterasys MGBIC-BX10-D, a 1000BASE-BX40 Downstream Single Fiber SM, Bidirectional, 1490nm Tx / 1310nm Rx, 40 km, Simplex LC SFP. This part must be paired with MGBIC-BX40-U.