NOTE
l
If the value on the optical power meter changes within a range of 0.2 dBm, take the average value.
l
If the value on the optical power meter changes in a range wider than 0.2 dBm, then it is possible that
the fiber is not properly connected, the fiber is excessively bent, or the fiber connector has dust.
l
Do not bend the fiber. A bent fiber may affect the test result.
Step 3
Compare the test result with the optical module parameters of the corresponding board in the
hardware description.
----End
Result
l
If the test result is between the maximum and minimum output optical power of the optical
module of the board, it indicates that the optical module works properly.
l
If the test result is no between the maximum and minimum output optical power of the
optical module of the board, it indicates that the optical module does not work properly.
1.3.15.2 Measuring the Receive Optical Power of an OLT PON Port
Determine whether there are continuous mode ONUs or rogue ONUs by measuring the optical
power of the OLT PON port.
Prerequisites
l
The ONU is powered on.
l
The ONU PON port is enabled.
l
The optical fiber between the OLT and the ONU is properly connected.
Tools, Meters and Materials
Burst optical power meter
Impact on System
When the receive optical power of a PON port on the OLT is measured, corresponding PON
port will fail to transmit any service.
Precautions
DANGER
Do not look into the optical port or the optical fiber connector without eye protection.
Before or after measuring the optical power, you need to clean the connector of the optical fiber.
This is because if a contaminated optical fiber is connected to a normal optical fiber connector,
the connector will be contaminated, which leads to abnormal attenuation and reflection and thus
affecting optical path quality.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
1 Commissioning
Issue 01 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
78
