LC-BX-D/GLC-BX-U 100% original new cisco sfp module for switches Overview: NEW SEALED* CISCO GLC-BX-D 1000BASE-BX10 SFP module for single-strand SMF, 1550TX/1310RX wavelength, 40km Condition: Brand New Warranty: Three years Lead Time: Within 2-3 days after payment confirmed Shipping: DHL,FedEx,TNT,UPS,EMS, ship to worldwide Payment Terms: T/T,Western Union Main Features Dual data-rate of 1.25Gbps/1.063Gbps operation 1550nm FP laser and PIN photodetector for 120km transmission Digital Diagnostic Monitoring. Internal Calibration or External Calibration Compatible with SONET OC-24-LR-1 Compatible with RoHS +3.3V single power supply Operating case temperature: Standard : 0 to +70C Specifications GLC-FE-100EX 40km/SMF GLC-FE-100LX 10km/SMF GLC-FE-100BX-D 10km/SMF GLC-FE-100BX-U 10km/SMF GLC-FE-100ZX 80km/SMF GLC-T GigE Copper Transceiver GLC-SX-MM-RGD 220-550m/MMF GLC-SX-MM 220-550m/MMF GLC-SX-MMD GLC-LX-SM-RGD 550m/MMF, 10km/SMF GLC-ZX-SM-RGD 70-100km/SMF GLC-EX-SMD GLC-BX-D 10km/SMF GLC-BX-U 10km/SMF GLC-BX40-DA 40km/Single Strand SMF GLC-BX40-U 40km/Single Strand SMF GLC-BX80-D 80km/Single Strand SMF GLC-BX80-U 80km/Single Strand SMF