EchoLife HG8240/HG8245/HG8247 GPON Terminal
Service Manual
Figure 4-1 General troubleshooting flowchart
Procedure
Step 1 Locate a fault preliminarily.
Find the fault location and determine the cause of the fault.
during preliminary fault locating.
Issue 04 (2011-01-12)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4 Maintenance and Troubleshooting
Table 4-2
lists the possible causes
4-3