telephone point question

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noel2507

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hi everyone need a bit of help with a rewire i start next week. the customer has asked me to put in a telephone point other that the master point. the problem is i have never done this before. the first question is am i allowed to connect to the master or only Bt allowed. if it is ok to carry out the work what equipment would i need. i had a look through the screwfix catologe and not sure which wire or faceplate i need or is there any special tools required. any help would be much appriciated thanks very much.

 
not sure whats legal but i would say most do it

just wire your extention from it with phone wire

you want a non master for the extention and only require to connect 3 cables

 
And Krone strips are Insulation Displacement Connections (IDCs), you need a punch downtool for these, you just strip the outer sheath of your Phone wire, 2Pair phone cable (not flex), thats 4 core, is what you need, and place the unstripped conductors into the slot and push down on it with the tool and it automatically bites into the conductor and grips it to make the connection.

The colours are Blue with a white band push this into terminal 2, white with a blue band, to 5 and Orange with a white band to 3, the 4th wire is not used but you can put it into 4 it won't do any harm.

Just connect the other end into the same terminals, you only need secoundary phone points for the extensions as the BT point is the Master.

Just loop in as many points as needed from one on to the other like a loop in radial circuit. There is a limit as to how many phones you can have plugged in at the same time I think its about 6.

 
As the others have said. You may get a throwaway ID tool with the slave socket.

The idea is that all extensions are plugged into the Master not connected, if there is a fault BT ask you to unplug all extensions and try a phone in the master , this is because they charge up to

 
am i right in saying you only really need to wire to 2 and 5 nowadays as 3 was the old ringer? maybe be handy if you lose a core. Or have I made that up.

 
am i right in saying you only really need to wire to 2 and 5 nowadays as 3 was the old ringer? maybe be handy if you lose a core. Or have I made that up.
That is assuming you know exactly what type of phone the customer is going to plug in?

e.g.

Most modern electronic ringing phones as you say will ring with only 2 & 5..

but some older-traditional.. dial phones with a physical bell and armature still need the wire connected via the bell capacitor onto the 3rd wire.

Probably 98%+ of the time you could get away with it...

But its them odd 1 or 2% of traditional type phones... that will catch you out.

we still have one at our house which was still in use up till about 18 months back!

:| ;)

 
Tip

If phones won't ring on incoming call reverse polarity of 2 and 5 at Line box, (Master)

If Broadband needed of this line plug in Router / Modem at Master point and use Filters on all Phones and equipment plugged in to system

 
thanks very much for all your help it is really very much appriciated.

thanks noel

 
That is assuming you know exactly what type of phone the customer is going to plug in?e.g.

Most modern electronic ringing phones as you say will ring with only 2 & 5..

but some older-traditional.. dial phones with a physical bell and armature still need the wire connected via the bell capacitor onto the 3rd wire.

Probably 98%+ of the time you could get away with it...

But its them odd 1 or 2% of traditional type phones... that will catch you out.

we still have one at our house which was still in use up till about 18 months back!

:| ;)
And it's as well for everyone to make sure they keep one of the old ones - or at least one that you know will work if the main power is cut off!

So many people now have new portable/hi-tech phones that rely on external power, which would be potentially useless in a serious emergency...

:(

 
And it's as well for everyone to make sure they keep one of the old ones - or at least one that you know will work if the main power is cut off!So many people now have new portable/hi-tech phones that rely on external power, which would be potentially useless in a serious emergency...

:(
We have Electric Digital Phones and have a normal plug in telephone for emergencies in power cuts.

That was until I put in 3 telephone extensions, and it is now in use upstairs.

I terminated in 2,3,4 & 5. as said above, it does no harm, and as also mentioned above - Don't forget the ADSL filters if using broadband. ;)

 
but some older-traditional.. dial phones with a physical bell and armature still need the wire connected via the bell capacitor onto the 3rd wire.
Not just those, but many of the BT-originated electronic phones of the 1980's

which are still around (e.g. the Ambassador and Statesman) need the 3rd wire for ringing too.

 
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