QSFP-40G-ER4 is a transceiver module designed for 40km optical communication applications. The design is compliant to 40GBASE-ER4 of the IEEE 802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module


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Part Number QSFP-40G-ER4
Vendor Name HaloWill
Form Factor QSFP+
Wavelength 1310nm
Connector LC Duplex
Transimitter Type DFB CWDM
Data Rate up to 45.2Gbps (4×11.3Gbps)
Reach 40km
Cable Type SMF
DDM/DOM Supported
TX Power -2.7~4.5dBm
Power Consumption <3.5W
Transmit and Dispersion Penalty 2.6dB
Packaging COB
Receiver Type APD
Operating Temperature 0 to 70°C
Receiver Sensitivity <-19dBm
Extinction Ratio >4.5dB
Modulation Format NRZ
Host FEC Supported
BER 1E-12
Warranty 3 years
Protocols OTN OTU3, 40G Ethernet, Infiniband, SATA/SAS3, MSA Compliant
Application 40GBASE-ER4 40G Ethernet, OTU3, OTU3e1, OTU3e2, Data Center

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