Telephone slave extension help needed

[ronbrown]

Hi all. I'm currently trying to add a socket in an upstairs room from the master socket. At the master socket there is a 4 core cable where Orange goes to A and White goes to B and green and orange are cut back. At the slave there are 6 junctions with a 4 core cable with orange, white, blue and green. I've tried every possible connection of the colours in junction 2-5 but nothing works. On a couple of them the phone will ring continuously but none have the dial tone. Any help would be much appreciated

 

[MDJ]

for a slave you need terminals 2,5 and 3 only, 3 is the ringer, usual colours are blue/white to 2, white/blue to 5 and orange/white to 3.

 

[MDJ]

to add I have never heard of a and b, usually terminals 2 and 5 are connections to the master.

 

[Allbrite]

If it's an original BT master it should come in two parts, A & B are for the line in and you take slaves from the lower punchdown terminals 2,3&5. colours as above.

 

[Rappid]

3 is no longer needed only 2 and 5, if you get a constant ringing when the phone is plugged in the socket then you have reversed 2 and 5, just swap them back over and it should be ok.

 

[ashrow]

I am sure polarity is not a must now on phone lines (not 100% sure but i got told by a engineer a few weeks back)

 

[ronbrown]

this is the situation at the master.
And this is the situation at the slave. I did what was suggested and the phone just continously rang again but with no dial tone.

 

[ashrow]

image 1 has blue white and red !, never seen that before
On image number 2 leave the a and b as is and then connect your extension cables to 2,3 and 5,

 

[telectrix]

just connect 2-2 and 5-5.

 

[Rappid]

Do you have 50V dc on A&B of the master?

 

[Rappid]

just connect 2-2 and 5-5.

I agree with telectrix, no need for 3.

 

[electric will]

That's alarm cable too,

 

[ronbrown]

ive tried taking out 3 and it still didnt work. I forgot to mention that the cable at the slave is from an extension lead coming from the master. I have cut this hoping to put it in the new socket rather than having the extension laying around, would this change what needs to be done?

 

[Allbrite]

Wow you seem to have a lot of extensions there. I am afraid the way you have done it is not going to work. If you are going to run a slave socket from a master the connections have to be done at the back of the sockets in the previously mentioned terminals 2 & 5. Also the extension cable you have used I image is stranded rather than solid core which is not ideal for punch down terminals. Hope this helps.

 

[tazz]

The push terminals are for standard bt cable, possible they are not breaking into the flex cable, try stripping cable and place in terminals to prove..worth a try.