Fiber optic transceiver module BlueOptics ET7402-LR4-BO 100000 Mbit/s QSFP28

The BlueOptics ET7402-LR4-BO is a QSFP28 fiber optic transceiver module designed for 100G (100000 Mbit/s) high-speed links over single‑mode fiber. It uses a QSFP28 interface with LC duplex connectivity and conforms to common MSA form‑factor standards. The module is intended for use in network equipment that supports 100GBASE‑LR4 optics and provides features for monitoring and reliable long‑distance optical transmission. The product colour is silver and the unit weight is approximately 40 g. The module is RoHS compliant and specified with an MTBF of 1,000,000 hours.

Advantages

The BlueOptics ET7402-LR4-BO offers multi‑wavelength CWDM transmit and receive channels to implement 100GBASE‑LR4 links up to typical single‑mode fiber distances defined by the LR4 standard. Its QSFP28 form factor supports compact, hot‑pluggable installation in compatible switches, routers and storage systems. The module includes digital diagnostics monitoring (DDM/DOM) functionality for real‑time readout of supply voltage, laser bias current, transmit power, receive power and temperature when the host hardware supports these features. Component selection and MSA compliance aim to provide extended operating life and consistent interoperability with major vendor platforms that accept LR4 QSFP28 optics.

Suitable for

• 100G Ethernet links in data center aggregation and spine/leaf architectures
• Long‑reach single‑mode fiber connections up to LR4 standard distances
• High‑speed interconnects between switches, routers and storage systems
• Environments requiring remote optical link diagnostics and monitoring

Key specifications

• Interface type: QSFP28 (hot‑pluggable)
• Data rate: up to 100000 Mbit/s (100G)
• Optical standard: 100GBASE‑LR4 (CWDM wavelengths, single‑mode fiber)
• Connector: LC duplex
• Digital diagnostics: DDM/DOM (MSA compliant)
• Product colour: Silver
• Weight: approx. 0.04 kg
• Environmental/standards: RoHS compliant
• Reliability: MTBF approx. 1,000,000 hours

How to use

Install the BlueOptics ET7402-LR4-BO into a compatible QSFP28 port while the host device is powered according to the equipment manufacturer’s hot‑swap procedures. Connect an appropriate LC duplex single‑mode patch cord between transceivers or to a patch panel, ensuring correct fiber polarity. Verify that the host platform supports 100GBASE‑LR4 optics and, if required, enable or verify DDM/DOM support to access diagnostic parameters. Follow the switch or router documentation to confirm link configuration, lane mapping and any firmware settings required for third‑party optics.

Recommendations

For best signal integrity and range, use single‑mode fiber and high‑quality LC duplex patch cords; avoid sharp bends and maintain proper connector cleanliness. Confirm compatibility and DDM/DOM support with the target hardware before deployment and consider testing a single module in your environment prior to full rollout.