100G QSFP28 FR Single Lambda Optical Transceiver

SKU WST-QS28-FR-C Category Tags , , ,



  • QSFP28 MSA compliant
  • Supports 53.125Gbaud
  • IEEE 802.3cd 100GBASE-FR Specification compliant
  • Up to 2km transmission on single mode fiber (SMF) with FEC
  • Operating case temperature: 0 to 70°C
  • 4x25G electrical interface (OIF CEI-28G-VSR)
  • Maximum power consumption 4.5W
  • LC duplex connector
  • RoHS compliant


  • Data Center Interconnect
  • 100G Ethernet
  • Enterprise networking
  • Maximum power consumption 4.5W



This product is a transceiver module designed for 2km optical communication applications. The module incorporates one channel optical signal, on 1310nm center wavelength, operating at 50Gbaud data rate. The transmitter path incorporates an EML Driver and a cooled EML together. On the receiver path, the input optical signal is coupled to a Pin photodiode detector. A DSP based gearbox is used to convert 4x25Gbps NRZ signals to 1x50Gbaud PAM4 signal. Also a 4-channel retimer and FEC block are integrated in this DSP. The electrical interface is compliant with IEEE 802.3cd and QSFP28 MSA in the transmitting and receiving directions, and optical interface is compliant to IEEE 802.3cd and 100G Lambda MSA with Duplex LC connector. The module has a maximum power consumption of 4.5W.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.

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