Figure 4-1
General troubleshooting flowchart
Procedure
Step 1
Locate a fault preliminarily.
Find the fault location and determine the cause of the fault.
lists the possible causes
during preliminary fault locating.
EchoLife HG8240/HG8245/HG8247 GPON Terminal
Service Manual
4 Maintenance and Troubleshooting
Issue 04 (2011-01-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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