Re: Re: Phone extension question

[Robin Edwards <robin@xxxxxxx>]

Hi Keith,
    Thank you for the reply.  I think, based on what
you've said I need different
plugs.  See if I'm correct.  
1: The socket I have, I think came from B&Q.  Opening it up it has
six
small
screws where the cores can be wrapped around, much like many hifi amps.
 But
it does not have the push type slots that cut thru the insulation from
either
side.
2: The cable appears to be solid single core design.
3: The small plugs have an instruction sheet that say they are suitable for
'D' profile
cable, and not suitable for solid core.

>from
poor 
contact?  So I need a different style of plug?

regards, robin 

keithdoxey wrote:
> a42pl4+1026t@xxxxxxx">
> HI Robin,
>
> The 4 contacts on the plug will be 2,3,4,5
> with 2 being closest to 
> the tag. Look at www.diyha.co.uk and follow the links to
> *Telephones*
>
> The BT wiring convention is
>
> 2 BLUE/White
> 3
> ORANGE/White
> 4 WHITE/Orange
> 5 WHITE/Blue
>
> where the MAIN COLOUR
> IS CAPS/Trace colour is lower case.
>
> You shouldnt try to crimp a
> solid cored cable to an IDC plug. The 
> contacts in the plug are designed
> to peirce the insulation and push 
> into the STRANDED conductor. With a
> solid conductor it will be puched 
> to one side of the pin or the other
> and give a poor connection, at 
> worst, the pin will actually cut through
> the wire.
>
> Likewise you shouldnt use stranded cable in an IDC socket
> although it 
> does usually give quite good results. With a normal Krone
> type IDC 
> connection in a socket there are two *blades* which slice
> through the 
> insu
> lation andbite into a solid conductor forming what is known as a 
> *cold
> weld* which is an air tight secure connection. With stranded 
> cable the
> blades still cut through the insulation but the stranded 
> conductors
> tend to shuffle about and flatten out. A connection still 
> gets made but
> only by the surface of the conductors touching the 
> blade of the socket.
> This is nowhere near as reliable.
>
> Hope that
> helps
>
> Keith
>
>
>
> --- In ukha_d@y..., Robin Edwards <robin@j...> wrote:
> >     Can somebody help with following please.  I want to run a
> > phone 
> > extension from
> > a socket on ground floor to my study two floors
> > up (in roof).  The 
> route 
> > is a pain but
> > over last few months as I've been lifting
> > boards etc I gradually 
> fed a 
> > cable thru, but
> > there are no terminators on it.  The cable
> > is what was left after 
> my 
> > home highway was
> > installed. so I think it has 8 cores.
> > (Brown,Orange, Blue and 
> Green, 
> > plus 4 white with
> > coloured tracers).
> >
> >     I have a
> > couple of sockets, but they have numbered terminals 1 
> thru 6.
> >     I bought a pack of plugs that crimp on the end with pliers
> > and 
> a 
> > small metal die, but
> > this takes 4 cores. With the spring on
> > the left and the copper(?) 
> > contacts visible above
> > which do I connect
> > to what, assuming I number the connectors in the 
> plug 
> > 1 thru 4 with
> > 4 closest to the spring on the side?
> >
> >  
> >   Thanks for any help in advance, regards, robin
>
>
> ------------------------ Yahoo! Groups Sponsor
> ---------------------~-->
> Get your FREE credit report with a FREE
> CreditCheck
> Monitoring Service trial
> http://us.click.yahoo.com/ACHqaB/bQ8CAA/ySSFAA/IBOolB/TM
> ---------------------------------------------------------------------~->
>
> For
> more information: http://www.automatedhome.co.uk
> Post message: ukha_d@xxxxxxx 
> Subscribe:  ukha_d-subscribe@xxxxxxx
> Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> List owner
> :  ukha_d-owner@xxxxxxx 
>
> Your
> use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Yahoo! Groups Sponsor

ADVERTISEMENT

For more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx 
Subscribe:  ukha_d-subscribe@xxxxxxx 
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx 
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.