Telephone / Broadband wiring something weird.
Dave Liquorice wrote:
On Wed, 18 May 2011 21:12:56 +0100, The Natural Philosopher wrote:
The 3rd wire is are reconstituted by a 'master' socket with a resistor
and a capacitor.
IIRC the 4th wire is 'anti-tinkle and tells local phone extensions not
to ring because someone is dialling out on a LD phone.
No the wire at the junction of the C & R is the "anti-tinkle" as well
as the "bell" wire. It is shorted to the "A" wire (pins 3 & 5) when
the dial is moved off the backstop.
The other one would be earth for earth recall. Very rarely used these
days.
ISC.
yep. that sounds better!
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