Table of Contents
Advertisement
SmartAX MA5612 Multi-service Access Module
Maintenance Guide
Possible Cause
The optical splitter is
faulty or the connectors
on the optical splitter are
not clean.
A backbone fiber break
occurs.
A branch fiber break
occurs.
Step 4 Check for the possible causes on the ONU and troubleshoot the faults accordingly. If the ONU
still fails to go online after that, proceed to
Possible Cause
The ONU is not powered
on.
Issue 01 (2012-07-25)
Judgment Criterion
Measure the input and output
optical power of the optical
splitter by using the optical
power meter. It is found that the
actual attenuation exceeds the
theoretical attenuation.
NOTE
The faults in the optical splitter
cannot be located by the OTDR
because the OTDR cannot
penetrate the optical splitter.
1. Check the backbone fiber
by using the OTDR. It is
found that a backbone fiber
break occurs.
2. Check the optical fiber on
site. It is found that the
optical fiber is broken or not
connected.
1. Check the branch fiber by
using the OTDR. It is found
that a branch fiber break
occurs.
2. Check the optical fiber on
site. It is found that the
optical fiber is broken or not
connected.
Judgment Criterion
If either of the following two
situations occurs, the ONU is
not powered on.
l The 0x2e11a00b The
dying-gasp of GPON
ONTi (DGi) alarm is
generated on the OLT, but
the corresponding clear
alarm is not generated.
l Check the power supply of
the ONU. It is found that the
power supply of the ONU
fails or is turned off.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting Method
Replace the faulty optical
splitter or clean the connectors
on the optical splitter.
Reconnect the branch optical
fiber.
Reconnect the branch optical
fiber.
Step
5.
Troubleshooting Method
Restore the power supply of the
ONU.
6 System Fault Handling
208
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
