No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
DDN_AIS

DDN_AIS

Description

The DDN_AIS is an alarm indication signal at the DDN port. If a board has detected that the signals at the DDN port are all "1"s, the DDN_AIS alarm is reported.

Attribute

Alarm Severity Alarm Type

Minor

Communication alarm

Parameters

None

Impact on the System

When the DDN_AIS alarm occurs, the accessed signals at the DDN port are useless.

Possible Causes

The possible causes of the DDN_AIS alarm are as follows:

  • The AIS alarm is inserted in the services in the upstream DDN equipment connected to the electrical interface on the DDN board.
  • The receive unit of the board at the local station is faulty.

Procedure

  1. View the DDN_AIS alarm on the U2000 to confirm the relevant board.
  2. Check whether the accessed E1 signals of the board are reported normally. After making sure that the accessed E1 service signals are correct, check whether the DDN_AIS alarm is cleared.
  3. If the alarm persists, replace the board.

Related Information

None.

Translation
Download
Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 82454

Downloads: 152

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next