Step 4
Check whether the mains supply is normal (whether the mains supply meets the requirements
for Huawei's product).
----End
6.3.2 PON LED Off
This topic describes how to locate the fault when the PON LED does not illuminate.
Procedure
Step 1
Check whether the OPTICAL interface on the ONT rear panel is connected to the optical fiber
properly.
Step 2
Check whether the GPON ONT fails to register with the OLT. If such a problem occurs, contact
the service provider for help.
----End
6.3.3 LOS LED Blinking
This topic describes how to locate the fault when the LOS LED blinks.
Procedure
Step 1
Check whether the optical fiber is connected properly.
Step 2
Check whether the optical fiber connector is clean.
----End
6.3.4 LAN LED Off
This topic describes how to locate the fault when the LAN LED does not illuminate.
Procedure
Step 1
Check whether the network cables match the device.
Step 2
Check whether the network cables are properly connected.
Step 3
Check whether the LED of the network interface card (NIC) is normal.
If the LINK LED is always on, it indicates that the network cables are properly connected. If
the ACT LED blinks, it indicates that data is being transmitted.
Step 4
Check whether the NIC works in the normal state.
In
Device Manager
of the Windows operating system, check whether there is a device marked
with
?
or
!
under
Network Adapter
. If there is a device marked with
?
or
!
under
Network
Adapter
, uninstall the NIC and then re-install it, or install the NIC in another slot. If the problem
persists, replace the NIC.
----End
6.3.5 TEL LED Off
This topic describes how to locate the fault when the TEL LED does not illuminate.
6 Troubleshooting
EchoLife HG8240/HG8245/HG8247 GPON Terminal
Service Manual
6-10
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 02 (2011-01-26)