1GE 1000BASE-BX SMF 1550nm-TX/1310nm-RX 20km DOM LC WDM BiDi SFP Transceiver Module Cisco GLC-BX-20D Compatible
1GE 1000BASE-BX SMF 1550nm-TX/1310nm-RX 20km DOM LC WDM BiDi SFP Transceiver Module Cisco GLC-BX-20D Compatible,SFP Transceiver
1GE 1000BASE-BX SMF 1550nm-TX/1310nm-RX 20km DOM LC WDM BiDi SFP Transceiver Module Cisco GLC-BX-20D Compatible,SFP Transceiver