attainable suggests a 3dB SNRM target.
Only ever seen DLM lower SNRM in 1dB increments.
You're absolutely positive there was no other resyncs between the line going live and the Friday morning?
I can't believe that.
G.INP is applied 2 days later, this causes a resync.
Over the next few days if the line is stable it will lower the target SNRM in 1dB increments, which causes resyncs.
There must have been at least
1 resync to enable G.INP.
The SNRM dropping doesn't happen with every line, but G.INP doesn't appear from nowhere and needs
It's also possible lines have been getting gradually added over this time, with would have nibbled away at the SNRM and attainable but wouldn't show as a decrease in sync until a resync was initiated.
edit: auto correct mistake.
Edited by j0hn83 (Mon 21-Jan-19 12:23:22)