l If Config State is failed, it indicates that the ONT configuration recovery fails. A possible
cause of this failure is that the ONT is bound to an incorrect ONT profile. To resolve this
problem, run relevant commands to issue a correct ONT profile, or reset the ONT.
l If Match State is match, it indicates that the configured capacity set of the ONT is the same
as the actual ONT capabilities. If Match State is mismatch, it indicates that the configured
capacity set of the ONT is different from the actual ONT capabilities, which will cause
registration failure. In this case, add a new ONT service profile.
Step 4 Check the statistics of the ONT.
l In the GIU mode, run the display port statistics command to query the traffic statistics of
the upstream port of the ONT. Specifically, check whether receive and transmit traffic exists.
l In the GPON mode, run the display statistics ont command to query the performance
statistics of the ONT PON port.
l In the GPON mode, run the display statistics ont-eth command to query the performance
statistics of the ONT ETH ports.
Step 5 Check the data configuration of the ONT.
l Run the display dba-profile command to check the DBA profile bound to the ONT.
l Run the display service-port command to check whether the traffic stream configuration is
correct.
l Run the display vlan command to check whether the upstream port of the ONT is added to
a VLAN.
Step 6 Check the status of the upper-layer device. Specifically, check whether the OLT is in the normal
state.
----End
4.3 Tools Used for Troubleshooting
This topic describes the tools required for troubleshooting: digital multimeter and optical power
meter.
4.3.1 Digital Multimeter
This topic describes the functions and usage instructions of the digital multimeter.
The digital multimeter is a simple and practical test meter frequently used in the electrotechnical
and electronic industries. It is inexpensive, convenient to carry and easy to use, and has a
complete set of functions.
Basically, the digital multimeter is used to measure the resistance, DC voltage, AC voltage,
current and capacitance, and test diodes and triodes.
To use the digital multimeter, do as follows:
1. Turn on the power supply. (If a digital multimeter without a dedicated power switch is used,
skip this step.)
2. Select the items to be tested.
3. Choose a proper measurement range.
4. Perform the measurement correctly.
EchoLife HG8010/HG8110/HG8240/HG8245/HG8247/
HG8447 GPON Terminal
Service Manual 4 Maintenance and Troubleshooting
Issue 02 (2011-12-08) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
278
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