Testing Huawei optical modules involves verifying port status, module parameters, and optical power using device commands and diagnostic tools.

Step 1: Verify Port and Module Status

Connect the optical module to the Huawei switch or OLT port. Use the command display interface <interface-type> <interface-number> to check the port link status, speed, and transceiver type. A link status of UP indicates normal operation. You can also run display interface brief to view all ports and their statuses .

Step 2: Check Module Parameters

Use the display transceiver command to view detailed information about the optical module, including:

• Transceiver type and connector type
• Wavelength and transfer distance
• Digital Diagnostic Monitoring (DDM) status
• Vendor and serial number
• Temperature, voltage, and bias current
• RX and TX optical power and thresholds Compare these values with the module datasheet to ensure compatibility and proper operation.

Step 3: Measure Optical Power

Use an optical power meter to measure the receive (RX) power of the port. Ensure the optical fiber is properly connected and not damaged. If the RX power is outside the acceptable range, check the fiber connection or replace the module .

Step 4: Loopback Test

Form a loop on the port using a single optical fiber to test whether the port goes UP. If the port does not come up, the optical module may be faulty and should be replaced .

Step 5: Check Peer Device Configuration

Verify the configuration of the interconnection port on the peer device, including auto-negotiation settings. Incorrect configuration can prevent the link from coming up. Reconfigure the peer device if necessary .

Step 6: Troubleshoot and Replace

If the module fails the above tests, replace it with a spare. If the issue persists, it may be caused by environmental factors or device configuration, in which case optimize the setup or contact Huawei technical support .

Additional Tips

• Always ensure the module is compatible with the switch or OLT model.
• Monitor traffic statistics and error counters to detect intermittent issues.
• Use DDM readings to proactively identify potential failures before they affect network performance . By following these steps, you can effectively test Huawei optical modules for functionality, compatibility, and performance.