Huawei Optical Switch Module

Huawei switch optical modules are certified SFP, SFP+, and BiDi transceivers designed for reliable high-speed network connectivity, supporting single-mode and multi-mode fibers with hot-swappable and diagnostic capabilities.

Overview

Huawei optical modules are essential components for S Series switches, enabling high-speed data transmission over fiber optic networks. They include SFP, SFP+, and BiDi modules, supporting various data rates from 1 Gb/s to 100 Gb/s depending on the switch model and module type . Modules are designed for single-mode or multi-mode fibers, and bidirectional (BiDi) modules allow full-duplex communication over a single fiber strand, effectively doubling fiber utilization .

Certification and Compatibility

Huawei requires the use of certified optical modules to ensure transmission reliability and service stability. Certified modules are labeled with "HUAWEI" and can be verified using commands such as display transceiver or display elabel on the switch . Non-certified modules may cause link instability or service interruptions and are not supported by Huawei . Certification for 40GE and 100GE modules began on January 1, 2016, and modules delivered after this date should meet Huawei's certification standards .

Key Features

• Hot-swappable: Modules can be installed or replaced without powering down the switch .
• Digital Diagnostic Monitoring (DDM/DOM): Provides real-time monitoring of temperature, voltage, bias current, transmit and receive optical power, helping administrators quickly locate faults .
• Distance and Wavelength: Single-mode modules can support long-distance transmission (up to 10 km for gigabit BiDi modules), while multi-mode modules are suitable for shorter distances .
• Form Factor: Standard SFP or SFP+ form factors ensure compatibility with Huawei switch ports .

Troubleshooting and Monitoring

To check the status of an optical module on a Huawei switch, use commands such as:

• display interface : Shows interface rate, module type, link status, and traffic statistics .
• display transceiver interface verbose: Provides detailed information on wavelength, received and transmitted optical power, and module health . Ensure that fiber type matches the module type (single-mode with single-mode, multi-mode with multi-mode) and that the module's data rate does not exceed the interface capacity . For BiDi modules, verify the correct wavelength pair (e.g., 1270nm Tx / 1330nm Rx) for proper full-duplex operation .

Practical Applications

Huawei optical modules are widely used for:

• Campus networks: Connecting switches across buildings using single-mode or multi-mode fibers.
• Data centers: High-speed uplinks and stacking connections between switches.
• Metro networks: Long-distance gigabit connectivity using BiDi modules to reduce fiber cabling costs . Using certified Huawei optical modules ensures network stability, optimal performance, and simplified maintenance, while leveraging features like DDM for proactive monitoring and troubleshooting.