Description of the problem

The Huawei OSN3500 device SSN2SLO1 interface board receives too much light, and on a certain day, the bureau field engineer wants to install light attenuation on this single board, but its unable to do so.

Processing

Consult the R&D to know:

1, SLO1, SLT1 are internal shrinkage, you can add light decay

2, SLH1, SEP1 are processed through the interface board, can add light attenuation.

3, SLO16 is a 45-degree slant out, the development of the time to do an assessment of the appropriate shrinkage, you can add the light attenuation

4, the follow-up will be SSN3SLH41 and other single board, the front out of the 16 optical ports, will use G.657 fiber (short jacket), the use of light attenuation is no problem.

In the case of the opening did not add the light attenuation, the later maintenance and then add the light attenuation there is a great deal of difficulty, it is best to give away the machine flange type light attenuation on the ODF frame. Guide field engineers to add flange-type light attenuation on the ODF frame after the problem is solved.

Root cause

1. Improper operation;

2, Wrong type of light decay;

3, Veneer design limitations.

4, Other reasons.

Recommendations and summary

It is recommended that for Huawei OSN3500 devices SLO1, SLT1, SLH1, SEP1, SLO16, and SSN3SLH41 that are not configured with light attenuation in the opening, it is best to add flanged light attenuation to the ODF shelf for later maintenance.

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