BT Telephone lines connection in the socket

Hi,

I wanted to change the BT telephone line socket myself but forgot to make a note of which wire goes where.

Does any one knows the connections please?

Rajinder

Reply to
Ch. Rajinder Nijjhar Jatt
Loading thread data ...

# EXT INT Function

1 N/C 2 Black Blue/White B-leg 3 Red Orange/White Bell 4 Green White/Orange 5 Yellow White/Blue A-leg 6 N/C

Note the numbers are the terminals, not the pins.

Reply to
Nige

formatting link

Reply to
Peter Parry

I'm pretty certain my relatively recent incoming line has orange as one of the colours on the 'used' pair - I only recently installed a new type BT master socket to allow fitment of an ASDL filter. And only the one pair were connected.

If this is controversial, I'll open it up and check for definite.

Reply to
Dave Plowman

On Sun, 30 May 2004 10:58:17 +0100, Nige strung together this:

Of course, that assumes that whoever fitted the socket in the first place used the correct colours, which is probable but not a certainty! You may find that you need to follow the wiring up to the next socket and copy the wiring colours in there.

Reply to
Lurch

site.

If there is no phone plugged in the test resistor goes nowhere (at DC). If they test the line with AC the capacitance of the line could have an impedance appreciably less than 470k thereby confusing the issue. In fact a bit of dampness in the master socket and the DC resistance could come down to a few 10's of kilohms, ditto.

Before I learned it was a test resistor (In PGS's days) I just assumed it was there to restore the DC on the bell wire to that on the "A" leg, rather than having it floating about.

Seemed a good idea if there may be high induced voltages about in the case of a lightening strike, (wouldn't want to come across a 1.8 mf capacitor charged to ? 60Kv? plugging the phone in. 8-(( ( OK, I know to get it charged up something else would have to breakdown).

So how does the line test work?

DG

Reply to
derek

There are all here:

formatting link

Reply to
Rick Hughes

HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.