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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Replacing an old GPO jack plug
I have an old GPO jack plug fitted onto a standard wall box. I want
to replace it with an up-to-date socket so that I can use it. I haven't been able to find its details online so if anyone can help, I'd be grateful. It was installed when the house was built, about 1970. It has five terminals: 1 - brown wires (2) 2 - orange wires (2) 3 - blue wires (2) 4 - green (1) 4A - brown which is looped back to 1. There are two cream-insulated wires coming into the box, since this extension oulet is one of several in the house and the wiring goes on to the next room. The fitting is flush to the wall with a standard metal box behind it, set into the wall exactly as a light switch would be. The cream plastic face of the jack has "GPO" on it. What is its model number and what which wires would I use when I replace it with a standard extension socket? Ta, |
#2
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Timbrook99 wrote:
I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. You do realise that *you* shouldn't be touching that don't you? Perhaps if your modem/fax/phone started "having intermittent problems" and BT had to send an engineer out, and you offered him/her nice tea & biscuits the "fault" would require a new faceplate to be fitted ;-) |
#3
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Do you mean like this?
http://www.telephonesuk.co.uk/images/95a.jpg If so it will be part of a plan 4 or similar and you can't just replace 1 socket "Timbrook99" wrote in message om... I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. I haven't been able to find its details online so if anyone can help, I'd be grateful. It was installed when the house was built, about 1970. It has five terminals: 1 - brown wires (2) 2 - orange wires (2) 3 - blue wires (2) 4 - green (1) 4A - brown which is looped back to 1. There are two cream-insulated wires coming into the box, since this extension oulet is one of several in the house and the wiring goes on to the next room. The fitting is flush to the wall with a standard metal box behind it, set into the wall exactly as a light switch would be. The cream plastic face of the jack has "GPO" on it. What is its model number and what which wires would I use when I replace it with a standard extension socket? Ta, |
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#5
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On Sun, 20 Mar 2005 16:51:33 +0000, Andy Burns
wrote: Timbrook99 wrote: I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. You do realise that *you* shouldn't be touching that don't you? Perhaps if your modem/fax/phone started "having intermittent problems" and BT had to send an engineer out, and you offered him/her nice tea & biscuits the "fault" would require a new faceplate to be fitted ;-) Thats what happened to me yeras ago .I had an engineer out to fix a line fault,he noticed I sytill had the old style socket and "suggested " I might like it modernised so he changed it and gave me a new style phone .i passed a few shekels his way and offf he went . Stuart |
#6
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In article ,
Andrew Gabriel wrote: You can't simply swap them. The jack plugs run the phone bells in series, and you'll need to change the circuitry for parallel phone operation, The strange thing is they don't. On that plan the bells were in parallel - otherwise you'd have needed some form of switch when one was unplugged. I've got the original wiring diagram of both the installation and phone strapping if you'd like a copy. -- *Change is inevitable ... except from vending machines * Dave Plowman London SW To e-mail, change noise into sound. |
#7
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"Timbrook99" wrote in message om... I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. I haven't been able to find its details online so if anyone can help, I'd be grateful. Order broadband and they'll replace it for free. |
#8
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BT will replace it free of charge if asked. They will not be at all happy if
you try to do so yourself! -- Peter Crosland |
#9
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"Dave Plowman (News)" wrote in message ... In article , Andrew Gabriel wrote: You can't simply swap them. The jack plugs run the phone bells in series, and you'll need to change the circuitry for parallel phone operation, The strange thing is they don't. On that plan the bells were in parallel - otherwise you'd have needed some form of switch when one was unplugged. The bells are in series. There is a set of contacts in the jack that form a switch when the plug is unplugged. |
#10
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"Timbrook99" wrote in message om... I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. I haven't been able to find its details online so if anyone can help, I'd be grateful. It was installed when the house was built, about 1970. It has five terminals: 1 - brown wires (2) 2 - orange wires (2) 3 - blue wires (2) 4 - green (1) 4A - brown which is looped back to 1. There are two cream-insulated wires coming into the box, since this extension oulet is one of several in the house and the wiring goes on to the next room. The fitting is flush to the wall with a standard metal box behind it, set into the wall exactly as a light switch would be. The cream plastic face of the jack has "GPO" on it. What is its model number and what which wires would I use when I replace it with a standard extension socket? Ta, Sounds like a "jack 420" socket to me |
#11
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On Sun, 20 Mar 2005 19:16:21 +0000 (UTC), "Andrew Mawson"
wrote: "Timbrook99" wrote in message . com... I have an old GPO jack plug fitted onto a standard wall box. I want to replace it with an up-to-date socket so that I can use it. I haven't been able to find its details online so if anyone can help, I'd be grateful. It was installed when the house was built, about 1970. It has five terminals: 1 - brown wires (2) 2 - orange wires (2) 3 - blue wires (2) 4 - green (1) 4A - brown which is looped back to 1. There are two cream-insulated wires coming into the box, since this extension oulet is one of several in the house and the wiring goes on to the next room. The fitting is flush to the wall with a standard metal box behind it, set into the wall exactly as a light switch would be. The cream plastic face of the jack has "GPO" on it. What is its model number and what which wires would I use when I replace it with a standard extension socket? Ta, Sounds like a "jack 420" socket to me It's actually a "Jacks 95A" and the corresponding plug is a "Plugs 420"... As has already been said, this is a "Plan 4" installation, where bell/s in the phone/s and a fixed bell are all in series, with a break contact between terminals 4 and 4A in the jack/s. If the line had been on "shared service" there would have been a "Jacks 96A", with six terminals. -- Frank Erskine Sunderland |
#12
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Perhaps I didn't explain properly.
The jack socket in question is an extension socket not the primary one that was sorted by BT years ago. Thus I don't think BT will be very interested in it. So, given the layout described and assuming it's a 95A, which of the wires do I connect to a modern socket? TB |
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#15
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In article ,
Timbrook99 wrote: Perhaps I didn't explain properly. The jack socket in question is an extension socket not the primary one that was sorted by BT years ago. Thus I don't think BT will be very interested in it. So, given the layout described and assuming it's a 95A, which of the wires do I connect to a modern socket? The BT diagram I have shows this recommendation when converting :- Blue to 2 Brown to 3 Green to 4 Orange to 5 Green isn't normally used. -- *Geeks shall inherit the earth * Dave Plowman London SW To e-mail, change noise into sound. |
#16
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"Dave Plowman (News)" wrote in message -- *Geeks shall inherit the earth * I thought they already owned it ;-) |
#17
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"Timbrook99" wrote
So, given the layout described and assuming it's a 95A, which of the wires do I connect to a modern socket? Have a look here http://www.wppltd.demon.co.uk/WPP/Wi...telephone.html lots of useful info |
#18
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The jack plug is what you push into the socket, the socket is just called a "jack". pedantic, Cambridge |
#19
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In article . com,
wrote: The jack plug is what you push into the socket, the socket is just called a "jack". pedantic, Snag is in the good ol' manual exchanges etc, a lead with jack plugs on either end was known as simply a jack lead... -- *Monday is an awful way to spend 1/7th of your life * Dave Plowman London SW To e-mail, change noise into sound. |
#20
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*Geeks shall inherit the earth * I thought they already owned it ;-) At an IETF a few years ago, the rather flash Stockholm hotel - the one they do the Nobel Prizes in, ISTR - didn't have too many elevators, and were frequently clogged with a stream of IETF types trying to get in and out. I was *most* impressed by the speed with which one of the wags advised the assembled multitude to 'beware of geeks barring lifts'... |
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