QSFP Transceiver Module BlueOptics QSFP-40G-LR4-DE-BO 40 Mbit/s

The BlueOptics QSFP-40G-LR4-DE-BO is a QSFP fiber-optic transceiver module designed for 40 Mbit/s optical links over single-mode fiber. The module uses a QSFP interface in a metal housing, operates from a 3.3 V input, and weighs approximately 20 g. It provides a compact, MSA-compliant solution for high-speed Ethernet and optical networking equipment that require QSFP form-factor modules and includes optical transmit and receive channels with CWDM support.

Advantages

This QSFP transceiver is built to meet MSA mechanical and electrical standards, enabling interoperability with a wide range of networking hardware that supports QSFP modules. The metal casing and selected components contribute to a long mean time between failures (MTBF) of around 1,000,000 hours, supporting sustained availability in rack-mounted switches, routers and storage systems. The module supports digital diagnostics (DDM/DOM) for remote monitoring of supply voltage, laser bias, optical output/input power and temperature when the host hardware exposes that interface.

Suitable for

• 40G Ethernet links over single-mode fiber
• High-speed interconnects between switches, routers and storage systems
• Optical backbone connections up to several kilometers (single-mode)
• Environments requiring MSA-compliant QSFP modules and digital diagnostics

Key specifications

• Interface type: QSFP
• Maximum data transfer rate: 40 Mbit/s
• Fiber type: single-mode fiber (SMF) with LC duplex connector
• Optical multiplexing: CWDM for Tx/Rx channels
• Operating voltage: 3.3 V
• Housing: metal enclosure
• Weight: approx. 0.02 kg
• Digital diagnostics: DDM/DOM (MSA SFF-8472 compliant), if supported by host
• MSA compliance: QSFP MSA (mechanical/electrical/functional compatibility)

How to use

Install the transceiver into a compatible QSFP port on supported network equipment, taking care to follow the host vendor’s hot-plug procedures. Connect LC duplex single-mode fiber patch cords to the module’s receptacle, ensuring correct Tx/Rx alignment and clean connector endfaces to avoid signal loss. Verify that the host device recognizes the module and, where available, enable or read DDM/DOM parameters for link diagnostics. Observe ESD precautions during handling and avoid mechanical stress to the module and fiber cables.

Usage recommendations

Use single-mode LC duplex patch cords and, where possible, a patch panel to secure connections; maintain connector cleanliness and check DDM/DOM readings for early indication of link issues. Confirm host compatibility with QSFP modules and digital diagnostic features before deployment.