Huawei optical module compatibility

Huawei switches require certified optical modules for reliable operation, though some third-party modules may work if they meet MSA standards, but non-certified modules carry operational risks. Certified vs Non-Certified ModulesHuawei mandates that only certified optical or copper modules be used on its switches to ensure transmission reliability and service stability. Non-certified modules may cause failures such as data bus suspension, incorrect temperature alarms, or physical damage to optical interfaces, and Huawei will not provide support for issues caused by them.

Certified modules are labeled with "HUAWEI," and their certification can be verified using commands like display transceiver or display version on the switch.

Supported Module Types

Huawei switches, such as the S5735-S48T4X, support both 1G SFP and 10G SFP+ modules on uplink ports, with auto-negotiation allowing downward compatibility. Modules must follow the MSA (Multi-Source Agreement) standard form factor, which allows some third-party modules to be physically compatible. However, form-factor compliance does not guarantee full operational compatibility, and Huawei recommends using certified modules for optimal performance.

Common Huawei optical module categories include: SFP (1G): FX, SX, LX, ZX, CWDM, bidirectional, and compact SFPs for various distances and fiber types. SFP+ (10G): SR, LR, ER, ZR, CWDM, DWDM, bidirectional, DAC, and AOC cables. QSFP28 and higher-speed modules for data center and metro applications.

Practical Compatibility Considerations

Fiber Type Matching: Single-mode and multi-mode fibers must match the optical module type; mixing them can prevent connectivity. Interface Speed: Do not use a higher-speed module on a lower-speed interface (e.g., 10G module on a 1G port) to avoid link failures. Distance and Wavelength: Ensure the module's wavelength and optical power are within the supported range for the link distance.

Third-

Party Modules: Some reputable third-party modules may work if they comply with MSA standards, but they may not pass Huawei's full certification tests, which include plug/unplug cycles, optical power, signal quality, EMC, and environmental parameters.

Verification and Support

To confirm module compatibility: Check the Vendor Name field using display transceiver—it should show HUAWEI for certified modules. Verify the manufacture date is after July 1, 2013, for modules certified post that date. Consult Huawei's supported module list for your specific switch model.

Using certified modules ensures reliable operation, warranty compliance, and support from Huawei, while non-certified modules may reduce network stability and risk hardware damage.