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[OT] Irish telephone connections


  • To: "UK-HA group" <ukha_d@xxxxxxx>
  • Subject: [OT] Irish telephone connections
  • From: "Stephen Jones" <ukha@xxxxxxx>
  • Date: Wed, 31 Dec 2003 02:29:05 -0000
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Perhaps a question for our Southern Ireland members -

Can someone please confirm the telephone wiring connections used by
Eircom? BT use 2 wires (typically Blue and White/Blue) to supply -50V to
a master socket which supplies all the secondary sockets with -50V
between pins 2 & 5 and pin 3 being used for the ringer. But IIRC
Southern Irish telephones use RJ11 plugs and only the 2 centre pins.

What is the equivalent to BT's master socket?
Is the line voltage the same as BT, i.e. -50V dc?
If a RJ45 socket is used for RJ11 plug, is pin 4 (blue) the positive?
With no ringer signal, do the phones contain the circuitry?

TIA

Steve


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