Huawei does not require an optical module

Huawei networking devices generally require optical modules for fiber-optic connections, and only Huawei-certified modules are fully supported to ensure reliability and service stability.

Role of Optical Modules

Optical modules are photoelectric converters that transform electrical signals into optical signals and vice versa, operating at the physical layer of the OSI model. They are essential for fiber-optic communication, enabling high-speed data transmission between switches, routers, and other network devices. Without optical modules, Huawei switches cannot establish fiber connections, which are critical for data center and enterprise network deployments.

Huawei Certification Requirement

Huawei switches must use Huawei-certified optical modules. Non-certified modules may not meet Huawei's specifications, potentially causing transmission errors, service instability, or port shutdowns. Even if a non-certified module is physically compatible, the switch may generate alarms or disable the port to prevent network issues.

Huawei provides commands, such as transceiver phony-alarm-disable, to suppress alarms for older or early-delivered modules, but full functionality is only guaranteed with certified modules.

Alternatives and Limitations

While Huawei devices can operate on copper Ethernet ports without optical modules, any fiber-optic port requires a compatible optical module. Therefore, the statement that Huawei "does not need optical modules" is only partially correct: it applies to copper-based connections but not to fiber-optic connections, which are common in high-speed or long-distance networking scenarios.

Conclusion

Huawei optical modules are not optional for fiber-optic connectivity. Using certified modules ensures network reliability, compliance with specifications, and avoidance of alarms or port failures. For copper connections, optical modules are unnecessary, but for any fiber deployment, Huawei-certified optical modules are required.