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What optical modules are used in Huijue core switches

Fiber and communications infrastructure knowledge brief Published 02 Aug 2024

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

Use Huawei-certified optical modules that match the switch port type, speed, and fiber type to ensure reliable operation.

Certification and Compatibility

Huawei switches require optical or copper modules that are certified by Huawei. Non-certified modules may cause transmission issues, service instability, and are not supported by Huawei technical support. Certified modules typically have the HUAWEI label, and their details can be verified using commands like display transceiver or display version on the switch.

Modules delivered after July 1, 2013, are generally certified if they meet these criteria. Module Types and SpeedSFP (Small Form-factor Pluggable): Common for 1G connections. SFP+: Supports 10G connections.

QSFP/QSFP28: Used for 40G or 100G uplinks. It is important to match the module speed to the port speed. For example, do not use a 10G SFP+ module on a 1G interface, as this will prevent the port from functioning.

Fiber Type ConsiderationsSingle-mode fiber (SMF): Typically used for long-distance connections (up to 10 km or more).

Use L

R (Long Reach) modules. Multi-mode fiber (MMF): Used for short-distance connections (≤ 300–400 m).

Use S

R (Short Reach) modules. Do not mix single-mode and multi-mode fibers or modules, as this can cause connectivity issues.

Practical Tips

Check optical power and wavelength: Use display transceiver interface xgigabitethernet 0/0/x verbose to verify the module's received and transmitted power levels. Perform loopback tests: Connect the fiber jumper to the same module to check for abnormal conditions. Hot-swapping: Most Huawei modules support hot-swapping, allowing replacement without shutting down the switch.

Future-proofing: For SMBs or data centers, consider 10G SFP+ LR or 100G QSFP28 LR4 modules depending on your upgrade path.

Recommended Approach

Always use Huawei-certified modules or fully tested third-party modules verified for Huawei switches. This ensures network stability, proper recognition by the switch, and warranty support. For specific switch models like S5700 or S5720 series, refer to the model-specific optical module guides to select compatible modules.

What optical modules are used in Huijue core switches - BAGYOU FIBRE NETWORKS [PDF]

What optical modules are used in Huijue core 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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