Wiring a phone socket

Mocrie14

There are two phone cables behind plain socketless cover on wall.

Each cable contains four wires - two coloured blue and white and two coloured orange and white. Phone socket I bought has four wires at the back of it - red, green, orange and black. What do I connect with what????





Thanks

Hal1

You only need to be concerned with the blue & orange pairs when wiring them to the phone socket.

Mocrie14

Hal1 wrote:

You only need to be concerned with the blue & orange pairs when wiring them to the phone socket.

Brilliant! Thanks very much - I'll let you know how I get on

Hal1

Np

Mocrie14

Bazbu wrote:

There are two phone cables behind plain socketless cover on wall.

Each cable contains four wires - two coloured blue and white and two coloured orange and white. Phone socket I bought has four wires at the back of it - red, green, orange and black. What do I connect with what????


Do I need to connect up both cables?

Hal1

Crimp the blue pairs (blue & blue white) thats all you for the phone. A certain phone company often split these between houses to save on cabling which means no broadband for some people.

Mocrie14

Hal1 wrote:

Crimp the blue pairs (blue & blue white) thats all you for the phone. A certain phone company often split these between houses to save on cabling which means no broadband for some people.

By 'crimp' do you mean that I'm to take the blue and blue white from both cables (ie four wires),tie them together and then connect them to the red/green wires in back of socket?

Hal1

This is a crimping tool that you use to crimp on rj11 (phone) jacks.
What where you going to use?

Mocrie14

Ok I might be confusing you - there are two cables each containing four wires blue/white, white/blue, white/orange and orange/white hanging out of the wall.

I have matched all together eg I've put both the blue/white wires from the two cables together and screwed them into the one red wire in back of socket. I've done the same with the other wires but hasnt worked - I've still got no dialling tone.

Any idea what I'm doing wrong? How can I be sure that the wires are 'live'?


Thanks!

Tails142

from my experience, phones only need two wires, and their position isnt important, just put the the blue and blue/white wires into the two central pins

Hal1

Only connect the blue pairs together as in the diagram if you cant get a dial tone your doing something wrong.

Mocrie14

Hal1 wrote:

Only connect the blue pairs together as in the diagram if you cant get a dial tone your doing something wrong.

OK - apologies for my stupidity but I be using both cables? ie should I be tying the blue/white wire in cable A to the blue/white wire in cable B and then connecting this to red wire at back of socket?

Hal1

Nope , but close. Hope this clears it up otherwise Im going to have to charge a call out fee.

Blue (White stripe) - Red
White (Blue stripe) - Green

armstrbr

Hal1, need some help of a similar nature. Just moved into a second hand home while attempting to get a second phone socket working upstairs I opened the Network Terminating unit (NTU) in the hallway. There were two cables visible to the Customer connection unit one connected to the Alarm terminal strip (eircom, which i disconnected Red, Black, Yellow, Blue) and the second cable (for the upstairs room again red, yellow, black and blue) looked like it had the wires cut. I opened the eircom side of the box and saw where the wires had been cut. Now the upshot of all this is I must have done something to effect the box itself as I no longer have a dial tone. Would you have a similar wiring diagram to the one you posted above showing the correct connect for (a) eircom cable connection into the socket and (b) how I should connect the telephone extension. Note the socket in the hallway is a NTU same as the one the the link below.

http://www.reci.ie/technicalinfo/eircominterface.pdf

Thanks
armstrbr

Hal1

armstrbr wrote:

Hal1, need some help of a similar nature. Just moved into a second hand home while attempting to get a second phone socket working upstairs I opened the Network Terminating unit (NTU) in the hallway. There were two cables visible to the Customer connection unit one connected to the Alarm terminal strip (eircom, which i disconnected Red, Black, Yellow, Blue) and the second cable (for the upstairs room again red, yellow, black and blue) looked like it had the wires cut. I opened the eircom side of the box and saw where the wires had been cut. Now the upshot of all this is I must have done something to effect the box itself as I no longer have a dial tone. Would you have a similar wiring diagram to the one you posted above showing the correct connect for (a) eircom cable connection into the socket and (b) how I should connect the telephone extension. Note the socket in the hallway is a NTU same as the one the the link below.

http://www.reci.ie/technicalinfo/eircominterface.pdf

Thanks
armstrbr

You could try piggybacking the phoneline for downstairs so you can recieve the call upstairs. Is that what you want to do, let me know how that works out.

Mocrie14

Hal1 wrote:

Nope , but close. Hope this clears it up otherwise Im going to have to charge a call out fee.

Blue (White stripe) - Red
White (Blue stripe) - Green

Ok thanks - I'll tie the 2nd cable up so and only use the other one and will also ignore the orange/white wires (why the hell are there cables and wires that arent needed!?). Will let you know how I get on...thanks for your patience.

Mocrie14

OK men - it still aint working. Have wired it up as suggested but still no dialling tone. See pic attached...all advise appreciated!

rogue-entity

Just to add to this:
The Eircom cable feeding into the house will have two wires, these are the A and B wires. These will usually go into a Junction box, from here, the engineer will take two of the 4 wires, usually the blue/white ones, and wire these to the L1 and L2 connectors on the Eircom socket. Telephone systems are not fussy about what order these two wires are connected, though some equipment is, which is why modems used to ship with those funny splitters that you would connect between the modem and the phone line.

OP, if their are two cables, then it is likly that one is coming from the eircom master socket and another is going to another blanking plate somewhere.
So as Hal1 said, take the blue-white stripe wire from both cables and connect them together to the red terminal, and take the white-blue stripe wire from both cables, and connect them to the green wire. If you still have no luck, open the eircom master socket, and see if their is an unconnected cable, one left their by the builders for the eircom guys to use when installing the extra points. If their is a cable, not connected, then connect the two blue wires to L1 and L2, the order isnt important, if their are already a set of blue-white wires conencted, then just match the wires and connect them. Hope this helps you.

Mocrie14

Still not feckin working!

I did as suggest above with the two cables coming out of the wall - tied the two blue/white together and similarly with the white/blue and connected them to red/green respectively but still no dialling tone. I then went to the 'master socket' which is located in the hall and had a look (see pic attached - apologies for the quality). There is an unconnected blue/white and an unconnected white/blue located top left. I connected these to L1 and L2 (top left of pic) but still no dialling tone. Tried connecting them to L1 and L2 in bottom right but was having problems fixing he wires in place. Is this where they should be connected?

Thanks

Jnealon

It sounds like the wires you are trying to connect are dead and that they are disconnected back at the master socket or outside. Another option is that all the phone points are wired in series and the point before the one you are trying to connect in not connected. If you have a meter check the voltage across the pairs, this will tell you if it is live or not.
Connecting the wires at the master socket is easy enough but will vary depending on which one you have

km101

Hello, I came across this discussion today. We moved into a new house recently. Ive been tidying up before painting and I’ve accidentally cut the wire coming into the eircom socket in the hall - there’s an old alarm that the cables were fed through and I thought they were inactivate! Partner is raging the internet is down on a Saturday night. There are 4 wires coming in (green, black, orange, white) and I need to connect to l1, l2 terminals but don’t know which ones to connect. Any help appreciated!