Description of the problem

Huawei SDH transmission equipment OSN3500 equipment branch single boards are not on the actual service channel often reported T_ALOS and other invalid alarms, resulting in the alarm indicator light. Customers sometimes request to eliminate the alarm indicator display.

Alarm information

T_ALOS

Processing

Confirmed Huawei SDH transmission equipment:

1. Versions before V1R7 need to eliminate alarms to keep the indicator lights on the single board side from lighting up, and the method of shielding alarms cannot solve this problem;

2. V1R7 and later versions can make the alarm lamp on the veneer side not light up by the practice of shielding alarms;

Suggestions and Summary

If there are requirements in maintenance, you can refer to the handling of this case.

The related technical information in this chapter and the troubleshooting process of SDH equipment are collected and organized by Shenzhen Optical Transmission Network Technology Company Limited ( www.opticaltrans.com), please retain! Our company specializes in the sales of Huawei SDH optical transmission equipment, SDH transmission equipment.