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Moxa optical modules are incompatible with Huawei switches

Fiber and communications infrastructure knowledge brief Published 03 Apr 2022

Use this reference to prepare product questions for CJC FIBRE. Check interfaces, capacity, protection and installation requirements against the current product documentation.

Moxa optical modules are generally incompatible with Huawei switches unless they are Huawei-certified, due to structural, electrical, and monitoring differences.

Compatibility Issues

Using Moxa optical modules on Huawei switches can lead to several problems because Huawei switches are designed to work with Huawei-certified optical modules: Installation Failures: Non-Huawei modules may have non-standard sizes or structures that prevent proper installation or block adjacent ports. Data Bus Suspension: Some third-party modules have defects in data bus design, which can suspend the switch's data bus and cause data loss. Hardware Damage: Improper edge connector sizes can short-circuit the switch's optical interface, potentially damaging the device.

Incorrect Temperature Alarms: Non-certified modules may report inaccurate temperature readings, triggering false alarms or causing ports to go down. Parameter Reading Errors: Improper register settings in non-Huawei modules can prevent the switch from reading diagnostic information correctly.

Official Recommendations

Huawei recommends the following to ensure reliable operation: Use Huawei-Certified Modules: Replace non-Huawei modules with Huawei-customized optical modules to avoid alarms and port failures. Disable Phony Alarms (if applicable): For early Huawei-delivered modules that are not fully customized, the transceiver phony-alarm-disable command can suppress non-critical alarms. Check Temperature Specifications: Ensure that any module used conforms to the switch's supported temperature range to prevent port shutdowns.

Practical Considerations

While Moxa provides a wide range of industrial Ethernet switches and optical modules designed for harsh environments, these modules are not guaranteed to be compatible with Huawei switches. Compatibility matrices from third-party vendors may list supported brands, but Huawei switches enforce strict certification requirements, and using non-certified modules can compromise network stability. Key Takeaway: To maintain network reliability and avoid hardware damage or false alarms, it is strongly recommended to use Huawei-certified optical modules with Huawei switches rather than Moxa or other third-party modules.

Moxa optical modules are incompatible with Huawei switches - CJC FIBRE CONSULTANTS [PDF]

Moxa optical modules are incompatible with Huawei switches

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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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