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Huawei Optical Module Multimode 40G

The Huawei QSFP-40G-LX4-MM is a 40Gbps multimode optical transceiver designed for high-speed data center and enterprise networks, supporting up to 150 meters over OM3/OM4 fiber with LC duplex connectors.

Overview

The Huawei QSFP-40G-LX4-MM is a high-performance 40GBASE-LX4 QSFP+ optical transceiver engineered for short-to-medium range multimode fiber communication in enterprise and cloud networking environments. It enables organizations to upgrade to 40G Ethernet while reusing existing LC cabling, reducing deployment costs and complexity.

Key Specifications

Data Rate: 40Gbps (4x10Gbps channels using CWDM)Fiber Type: Multimode (OM3/OM4)Maximum Transmission Distance: Up to 150 meters over OM3/OM4 fiber Wavelengths: Four CWDM wavelengths—1271nm, 1291nm, 1311nm, 1331nmConnector Type: LC duplexForm Factor: QSFP+ hot-pluggable, compliant with IEEE 802. 3ba standardsPower Consumption: Low, optimized for high-density switch deploymentsMonitoring: Supports Digital Diagnostic Monitoring (DDM) for real-time monitoring of temperature, voltage, optical transmit/receive power, and laser bias current AdvantagesCost-Effective Upgrade: Reuses existing LC multimode fiber infrastructure, avoiding the need for MPO cabling used in SR4 modules Simplified Cabling: Uses wavelength division multiplexing (CWDM) to transmit four independent 10Gbps channels over a single duplex fiber pair Compatibility: Works with Huawei switches, routers, storage systems, and other hardware supporting QSFP-40G-LX4-MM modules Reliability: Built with high-quality lasers and ICs, ensuring long service life and stable optical performance ApplicationsEnterprise core networksCloud data centersStorage systemsHigh-performance computing environmentsAny scenario requiring stable 40G Ethernet connectivity over multimode fiber SummaryThe Huawei QSFP-40G-LX4-MM is an ideal solution for organizations seeking high-speed, energy-efficient, and cost-effective 40G Ethernet connectivity over existing multimode fiber infrastructure.

Its compact QSFP+ form factor, low power consumption, and DDM support make it suitable for modern data centers and enterprise networks where reliability and scalability are critical.

Huawei Optical Module Multimode 40G

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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