Re: Switching wires in the pair improves ADSL connections?



steveybar wrote:

Oh dear... no need to shout. I am sorry to say that it is you who is
talking rubbish and garbage

You original emails say that you would recomend disconnecting the bell
wire - which I agreed with if you are using 'modern phones'

Yes. Just don't tell BT if the extension wiring is BT supplied, and you might
want to reinstate it if expecting a visit from a BT engineer.

If the extension wiring is your own - e.g. if using extension cables or wiring
to the customer side of an NTE5 you can of course happily do whatever you like
with it.


You then stated that any extension/slave sockets should be replaced with
master sockets

That was actually another poster's suggestion but I vaguely concurred with it as
a possible method.


- which I said I disagreed with because it would cause the
extra capacitance problems that I have previously stated.

It doesn't cause extra capacitance actually. I suspect you misunderstand how the
bell circuit functions. In actual fact it actually *reduces* the capacitive
component of the bell circuit presented to the incoming line. Might sound odd if
you're not familair with 'equivalent circuit analysis' but it does.


Why replace them and introduce the extra capacitance when you say previously
"The ring circuit on almost every modern phone (actually almost certainly
ALL modern phones) is derived from the A and B lines directly and doesn't
use BT's bell circuit"

I haven't myself. Remember it wasn't my suggestion. It adds cost to do this and
isn't usually required as decent microfilters already introduce a local bell
capacitor internally anyway at every socket, which also puts the lie to all this
nonsense about the alleged horrors of introducing 'extra capacitance'.


The capacitor in the additional master sockets is part of the bell circuit,
and you say it is not used so WHY replace the slaves with master sockets?

It wasn't my idea. I simply said it would work.

Graham

.