To carry out that test, does the engineer disconnect the extended D-Side in the FTTC, so removing whatever loading and noise there may be in normal configuration?

Not if they're banded which is what I assume you think DLM has done to this line.

I really dont get the point of them testing at the cab, the process seems something followed by staff who are under trained to understand the technology.

They should be able to tell if a line is banded by checking line records, so why test at a cab? One reason might be to give an excuse to a customer well its full speed at the cab so everything is hunky dory, but I suppose it could also be done to rule out a faulty port or tie pair.

What would be more productive is to test at various points between you and the cab.

In reply to a post by Chrysalis:

What would be more productive is to test at various points between you and the cab.

Couldn't agree more.

In reply to a post by scorpiouk:

The IP profile of the line was 79.8

All FTTC IP Profile set as 77.44 (without G.INP) or 77.35 (with G.INP) on all Openreach Fibre To The Cabinet if the line is full sync at 79999K

Edited by adslmax (Thu 26-Jan-17 19:00:27)

Good pickup max .

A banded line will only achieve the banded level at the cabinet. It's the easiest way to prove banding to a not so knowledgeable engineer.

Engineer should have access to Brandenburg NGA data...

Should being the oeprative word.

Some engineers don't know their ar5e from their elbow, or simply can't be bothered to go that little bit further.

Edited by deleted (Thu 26-Jan-17 22:17:17)