BIDI SFP 80KM1.25Gbps SFP Bi-Directional Transceiver, 80km Reach 1490nm TX / 1550 nm RX(PN: SP-B451GL-ZXDx)1.25Gbps SFP Bi-Directional Transceiver, 80km Reach 1550nm TX / 1490 nm RX(PN: SP-B541GL-ZXDx)Features and Applications for above two PNs1.25Gbps SFP Bi-Directional Transceiver, 80km Reach 1490nm TX / 1550 nm RX(PN: SP-B451GL-ZXDx)Features● Dual data-rate of 1.25Gbps/1.063Gbps operation● 1490nm DFB laser and PIN photodetector for 80km transmission● Compliant with SFP MSA and SFF-8472 with simplex LC receptacle● Digital Diagnostic Monitoring: Internal Calibration or External Calibration● Compatible with RoHS● +3.3V single power supply● Operating case temperature: Standard: 0 to +70°CApplications● Gigabit Ethernet● Fiber Channel● Switch to Switch interface● Switched backplane applications● Router/Server interface● Other optical transmission systems 1.25Gbps SFP Bi-Directional Transceiver, 80km Reach 1550nm TX / 1490 nm RX (PN: SP-B541GL-ZXDx)Features● Dual data-rate of 1.25Gbps/1.063Gbps operation● 1550nm DFB laser and PIN photodetector for 80km transmission● Compliant with SFP MSA and SFF-8472 with simplex LC receptacle● Digital Diagnostic Monitoring: Internal Calibration or External Calibration● Compatible with RoHS● +3.3V single power supply● Operating case temperature: Standard: 0 to +70°CApplications● Gigabit Ethernet● Fiber Channel● Switch to Switch interface● Switched backplane applications● Router/Server interface● Other optical transmission systems