Huawei Optical Module Configuration

Configuring a Huawei optical module involves proper installation, enabling the correct interface mode, and verifying operational parameters using system commands.

Step 1: Safety and Installation

Before installation, wear an ESD wrist strap or gloves to prevent electrostatic damage and ensure the optical module is certified for Huawei devices, as non-certified modules may cause service instability or hardware damage .

• Remove the dust plug from the optical port and keep it for future use.
• Ensure the module is correctly oriented and gently insert it until it clicks. If it does not fit, rotate 180 degrees and try again.
• Do not connect optical fibers until the module is securely seated.
• Measure input optical power to ensure it is within the normal range to avoid overloading the module .

Step 2: Interface Mode Configuration

Huawei devices often have combo interfaces that can operate in electrical or optical mode. To enable the optical interface:

• Enter system view: system-view
• Switch to optical mode: combo enable fiber
• To revert to electrical mode: undo combo enable fiber
• For 10GE optical interfaces on combo ports: port combination-mode 10GE interface interface-name and revert with undo port combination-mode 10GE interface interface-name .
• Ensure the same configuration is applied on the peer device to maintain connectivity.

Step 3: Verify Module and Port Status

After installation and mode configuration, check the module and port status:

• Display interface status: display interface brief
• Check transceiver information: display transceiver interface xgigabitethernet 0/0/2 verbose
• Run diagnostics: display transceiver diagnosis interface interface-type interface-number to view digital diagnostic monitoring (DMM) data such as optical power, wavelength, temperature, voltage, and current .
• Ensure the module type matches the fiber type (single-mode vs. multi-mode) and the interface speed (e.g., do not use a 10G module on a 1G port), .

Step 4: PON Interface Configuration (if applicable)

For routers acting as ONUs in a PON network:

• Configure the PON interface to auto-negotiate with the upstream OLT.
• If switching between EPON and GPON modes, reset the PON board to trigger a new negotiation.
• Be cautious when changing modes, as active service data may be interrupted .

Step 5: Troubleshooting

• If the port shows Administratively DOWN, enable it using undo shutdown.
• Perform a loopback test by connecting the fiber jumper to the same module to check for abnormal conditions.
• Verify that optical power levels are within normal ranges and that the module is certified . By following these steps, you can ensure that a Huawei optical module is correctly installed, configured, and operational, minimizing service interruptions and hardware issues.