Kitz Forum
Broadband Related => Telephony Wiring + Equipment => Topic started by: SE on June 01, 2021, 07:36:16 AM
-
Looking at the new? 2019 O.R socket with clip on front
and my older one with modem top, phone bottom
In the back plate on the wall looking through the cutout
I can see four wires, white, red, black and blue
I thought it was two, white A, red B (or orange)
The house has never had a phone until we got one in 2006 for ADSL
Is four the norm or has a O.R guy twisted two together
Also can I fit the new 2019 socket to the old wall part and use white/red
or is that O.R
-
In the back plate on the wall looking through the cutout
I can see four wires, white, red, black and blue
That does not appear to be standard Openreach wiring. Are you absolutely certain of those colours?
-
Are all 4 wires terminated? Pair 1 is Orange/White Pair 2 is Black/Green. Only one pair should be terminated, it doesn't matter which as long as it is the live pair.
-
That does not appear to be standard Openreach wiring. Are you absolutely certain of those colours?
Sounds like stranded cable (alarm wire) ..... but with a couple of wires maybe trimmed off at the neck ?? Yellow and green if memory serves ??
-
Sounds like stranded cable (alarm wire) ..... but with a couple of wires maybe trimmed off at the neck ?? Yellow and green if memory serves ??
Or poor colour recognition in a dark area, Red = Orange, Blue = Green
-
Pics needed ;)
-
Sounds like stranded cable (alarm wire) .....
That thought had occurred to me, which makes me wonder who installed the wiring. :-\
-
Or poor colour recognition in a dark area, Red = Orange, Blue = Green
Hmm, yes. That's another possibility.
-
Im on it guy, will replace it next week
I'm colourblind :)
But got the info from my wife as i have probs atm with a hernia :(
Yes i did flag her on this and think as said dark corner low light
Id say two are pulled back and maybe cable tied, but i will look myself
I know there was a bell wire that was removed, then our new bt phone didnt ring so they came out and put it back
So whats on AB, is moved to AB :)
-
That's unfortunate, I've never found a phone that needed the bell wire and I've seen quite an improvement when I disconnected it from a friends extention.
-
Hi Alex
It was this
https://www.argos.co.uk/product/5528460?clickPR=plp:12:26
Not an old dial phone as you'd think
It was the only phone i found that needed a bell wire, but it was liked by others in the house ::)
So the bell wire would not be AB, AB say white orange
Id like it pulled back and just the vdsl
-
That's even weirder than a BT branded phone would need the bell wire.
To note though, the bell wire isn't guaranteed to cause an issue, it depends on the quality of the extension cabling, how long it is and likely lots of environmental factors.
-
That's even weirder than a BT branded phone would need the bell wire.
...
I would say it is entirely expected that a BT branded phone would need the bell wire as that is the UK standard config. It is the main reason we have a bell capacitor in the master socket and why plug in dongle filters need them. We went that route with dial phones to stop bell tinkle on extensions when dialling. Other countries either put a bias spring on the bell to stop the tinkle or just put up with it, but being British we came up with what was at the time a good technical solution. It's true that lots of phones don't need that connection now but I don't think it's unusual to find those that still do.
:)
-
Would simply plugging a filter into the socket at the extension negate the need to run the bell wire? Or does the main filter prevent that working?
-
Would simply plugging a filter into the socket at the extension negate the need to run the bell wire? Or does the main filter prevent that working?
Yes that would work as the plug in filters have there own bell capacitor. However if you have a central filter (SSFP) there is no need to disconnect the bell wire in the first place as the SSFP effectively isolates all of the extension wiring, including the bell wire, from the VDSL side. It actually works both ways, so none of the VDSL frequencies end up on the extension wiring and no frequencies that VDSL uses, eg those possibly picked up by the bell wire etc, can break back through to the VDSL connection at the master socket.
:)
-
Yes that would work as the plug in filters have there own bell capacitor. However if you have a central filter (SSFP) there is no need to disconnect the bell wire in the first place as the SSFP effectively isolates all of the extension wiring, including the bell wire, from the VDSL side. It actually works both ways, so none of the VDSL frequencies end up on the extension wiring and no frequencies that VDSL uses, eg those possibly picked up by the bell wire etc, can break back through to the VDSL connection at the master socket.
:)
Right, so used to having filtered sockets now I had completely forgotten the issue only happens with self-install where you DON'T have a main filter where the only interference that can go the other direction is from voice tones so wouldn't impact DSL.