TKQS28-100G-LR4 100Gbps QSFP28 LR4 10Km SMF Optical Transceiver Overview

TKQS28-100G-LR4 is a 100Gbps transceiver module designed for optical communication applications compliant to 100GBASE-LR4 of the IEEE P802.3ba standard. By converting 4x 25Gbps electrical signal input channels into 4 wavelength LAN wavelength division multiplexing (WDM) optical signals and multiplexing them into a single 100Gbps. At the receiving end, the module performs the opposite process, first demultiplexing the 100Gbps optical input signal into 4 LAN WDM optical channels, and then converting them to 4 output channels of electrical data.

The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14 nm as members of the LAN WDM wavelength grid defined in IEEE 802.3ba.

The high-efficiency cooled WDM Electro-absorption Distributed Feedback (EA-DFB) transmitters, in conjunction with high-sensitivity p-type intrinsic-n-type (PIN) receivers, deliver exceptional performance for 100 Gigabit Ethernet applications,
supporting up to 10 kilometer that meets Clause 88 of IEEE 802.3ba standard for 100GBASE-LR4 requirements.

It was created to form factor, optical/electrical connection and digital diagnostic interface complies with the QSFP+ Multi-Source Agreement (MSA). it withstands the harshest external operating conditions including temperature, humidity and EMI interference.

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  • Hot pluggable QSFP28 MSA form factor
  • Compliant to IEEE 802.3ba 100GBASE-LR4
  • Up to 10km reach for G.652 SMF
  • Single +3.3V power supply
  • Operating case temperature: 0~70oC
  • Transmitter: cooled 4x25Gb/s LAN WDM EML
  • TOSA (1295.56, 1300.05, 1304.58, 1309.14nm)
  • Receiver: 4x25Gb/s PIN ROSA
  • 4x28G Electrical Serial Interface (CEI-28G-VSR)
  • Maximum power consumption 4.0W
  • Duplex LC receptacle
  • RoHS-6 compliant


This 100Gbps transceiver module compliant to IEEE 802.3ba, is designed for use-

1.100GBASE-LR4 Ethernet Links

2.Infiniband QDR and DDR interconnects

3.Client-side 100G Telecom connections

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