Finisar's FTL4C3QE1C QSFP+ transceiver modules are designed for use in 40 Gigabit Ethernet links over duplex multimode or single mode fiber. 3ba 40GBASE-LR43 refered to as LM4. If the SFP-10G-ER-1310 is connected to a 10Gbase-ER standard optical module (1550nm, 10GE, 40km), the maximum transmission distance is only 20km due to different specifications such as wavelength and receiving sensitivity. Single-fiber bidirectional (BIDI) optical modules must be used in pairs. They are compliant with the QSFP+ MSA1,2 and represent a multimode adaptation of IEEE 802. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA. The optical. Integrated circuits and reference designs help you create a smaller and faster optical module design used in high-bandwidth data communication applications. Whether you are creating a 100-Gbps or 400-Gbps, small form-factor pluggable (SFP) module, SFP+ transceiver, XFP module, CFP, X2/XENPAK module. Our Compatible Finisar FTL410QE2C QSFP+ transceiver is based on our 40G-QSFP-150 product, which has the same parameters and is manufactured in accordance with the same industry standards as its OEM counterpart. Our compatible module version is designed for operation over a Double Fiber Multi-Mode. The FiberStamp 40GE/OTU3 QSFP+ PSM4 1310nm 10km Optical Transceiver Module is a high performance, low power consumption, long reach interconnect solution supporting 40G Ethernet, fiber channel and PCIe. QSFP PSM LR4 is an assembly of 4 full-duplex.