Thanks MrSaffron - as I thought


#phew

What else can you call it after the NTE?

Extension wiring ?!?

As far as I am concerned, in my line of work, 'star wiring' refers to pairs teed before an 'NTE". This being the kind of wiring will produce a 'bridge tap' test result on the engineers test.

Edited by Zarjaz (Wed 04-Nov-15 12:56:24)

So it sounds as if you may have a duff installation. Do you know if the incoming line from outside goes straight to your NTE5, with no branches off beforehand? (Even if they aren't used).

Edited by RobertoS (Wed 04-Nov-15 13:04:29)

What makes you say that?

All my neighbours get roughly the same via FTTC so I'm assuming things are down to line length/quality.

Yes my overhead line comes from the outside directly to my NTE5.

Old post, I know, but...

In reply to a post by b4dger:

I don't think @RobertoS's earlier comment re impacted/clean installations is to be taken as a fact...

Ignoring the subsequent discussion on the definition of star wiring, I suspect RobertoS has been swayed by something I posted not so long ago. The BT handbook on FTTC doesn't quite come out and distinguish clean/impacted as meaning engineer vs self-install, but it isn't far out - it certainly links range B to self-install.

As for an engineer installation ... what else is the engineer for, other than to detect and fix copper faults, and to verify that internal wiring issues don't impact the service? Which is the criteria for a clean installation.

Here's a couple of posts I made on the subject:

http://forums.thinkbroadband.com/fibre/t/4441646-ftt...

http://forums.thinkbroadband.com/fibre/t/4441648-ftt...

Of course, none of this can quite control the behaviour of your ISP. If you start out self-install (with range B estimates), and subsequently have an engineer confirm that you have no copper faults or internal wiring issues, your ISP probably doesn't promote you to range A. They'll still use range B in deciding whether to report issues to Openreach for investigation.

More a case of:-

For FTTC Ranges A and B, the term "Clean" relates to a line which is free from any wiring issues (e.g. Bridge Taps) and/or Copper line conditions, and the term "Impacted" relates to a line which may have wiring issues (e.g. Bridge Taps) and/or Copper line conditions.

from below the table on the BT Wholesale estimator. Bearing in mind the widespread knowledge of the effect of bridge taps (before the NTE) on both ADSLx and FTTC, and that we have seen many left in places on Kelly's and Quinn's FTTC installations. Bear in mind b4dger's opinion is influenced by:-

In reply to a post by b4dger:

As for the engineer tests - mine wasn't bothered and left me with the "it should improve over time" line.

A very suspect installation, and possibly similar for his neighbours.

Edited by RobertoS (Thu 12-Nov-15 14:37:59)

In reply to a post by Zarjaz:

What else can you call it after the NTE?

Extension wiring ?!?

As far as I am concerned, in my line of work, 'star wiring' refers to pairs teed before an 'NTE". This being the kind of wiring will produce a 'bridge tap' test result on the engineers test.

Spot on Zarjaz, you're right we only ever call it star wiring if it's prior to the NTE. Or I guess if it was star wired from a BT80 or BT16 and there was no NTE5.

Would never be referred to as star wiring if it occurred after the NTE5

In reply to a post by Icaras:

Would never be referred to as star wiring if it occurred after the NTE5

It did surprise me that someone wanted to, however technically true it would be.

However I think it is valid to say the extensions are star-wired if all are attached directly to the NTE5A.

For FTTC Ranges A and B, the term "Clean" relates to a line which is free from any wiring issues (e.g. Bridge Taps) and/or Copper line conditions, and the term "Impacted" relates to a line which may have wiring issues (e.g. Bridge Taps) and/or Copper line conditions.

My bold above.

All my close neighbours had engineer installs and are all in the 'impacted' range.
So, as mentioned earlier, I believe our local BT lines are causing issues for us.

That's why I wasn't happy with @RobertoS statement making it sound like customers would get 'clean' results if they had an engineer install - there's more to it than that...

I suggest you go back to your basic training and see what it is referred to as there.