Faq-How To Judge What Is The Problem About Adsl Line Quality - Huawei MA5600 Manual

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1.17 FAQ-how to judge what is the problem about ADSL line quality

FAQ-how to judge what is the problem about ADSL line quality
SE0000396417
Troubleshooting Cases
Broadband Access
ADSL Access Service
ADSL line quality
01Huawei Engineers Permission
Q:
there are many problem is caused by ADSL line quality ,but how can we judge it and fix it ?
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A:
1. check whether the line is too long or not.
according the attenuation in down stream, if the attenuation in downstream is over 40dB, it means the length of the line is overrun about 4km, and it is hard to active
2. check the line quality .
if the attenuation in upstream is large that it in downstream, it means there is a probelm about line quality , and it need the customer to check the line .
3. check the disturbing by external factor.
check the SNR parameter. if it changes in a large range, and it becomes to negative in sometimes. we can confirm there is disturbing by external factor.
4. check the line collocation at the user's home.
check the bit allocation from MA5600, if there is sunken in the bit allocation, it means there is a problem in the filter or the phone in the subscriber side.
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1.18 FAQ-How to recover admin password in MA5600
Information Type :
Update Time: 2009-03-20 09:42:13
Product Family:
Fault Type:
Permission Level: 03Equipment Users Permission
Phenomenon Descr
20
Title: FAQ-How to recover admin password in MA5600
ID: SE0000380843
Troubleshooting Cases
Views: 34
Author: Ma Ming
Broadband Access
Others
Keywords: MA5600 root admin password
Q:
iption:
How to recover admin password of root user in MA5600?
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Product: SmartAX MA5600
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