Here are a few pics of eircom (formerly Telecom Eireann) sockets &
Eircom ADSL / Phone Master Socket (New):
Eircom ADSL / Phone Master Socket (New) (RJ11 both sides):
Interior of Eircom New-type Master socket (ADSL splitter module part of
Front panel, including ADSL splitter:
Original Telecom Eireann / Eircom master socket used for the past 20+
years. RJ 11 outlet (6 terminal):
Inside original Eircom/Telecom Eireann master socket:
Theoretically, they should be wired like so:
Incoming 2 wire L1 & L2 (no R)--- socket 1 ---- outputting L1, R, L2
--- socket 2 -- outputting L1, R, L2 and so on..
There is no "slave" version all sockets contain the capacitor and line
However, in many installations the sockets were simply run radially
from a junction box each operating independently.. especially where DIY
was involved. Unlike BT, Telecom Eireann / Eircom does not have any ownership of the cabling within your home. It terminates its network on a final junction box which contains equipment designed to protect the
network (fusing etc).
Manufactured by Siemens / Rutenbeck (Ireland)
These are still installed where DSL is not required.