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Powerful interference source make the ISDN appears bit error

Publication Date:  2012-09-21 Views:  110 Downloads:  0

Issue Description

We didn’t find bit error when we tested the ISDN cable layout outdoor, but we found bit error indoor.

Alarm Information

None

Handling Process

We examined the path of the ISDN line passed by an air-condition, we thought it was the interference source, then we moved the line far away, as the result the bit error disappeared.

Root Cause

We didn’t find bit error when we tested the ISDN cable layout outdoor, because the bit error inexistence. In door, the ways and means of the layout are different, but the cable is the same, so there must be some outer interference source.

Suggestions

None

END