Cisco GLC-BX-20D Compatible 1000Base BX BIDI SFP TX1550nm/RX1310nm 20km LC SMF DDM Transceiver Module
Cisco GLC-BX-20D Compatible 1000BASE-BX-D BiDi SFP mini-GBIC up to 20km throughput over SMF using 1550nm-TX/1310nm-RX wave lengths via LC simplex connector.
