ELECTRICAL INSTALLATION
Line Terminal Connections and Selections
The number of telephones that can be connected to a direct
exchange line or PBX extension is limited by the ringer
equivalence number (REN) of all the telephones connected, this
should not exceed a total value of 4.
The REN value of this telephone is 1. In case of doubt consult
your telephone supplier.
The Terminal block mounted at the back of the unit is labelled as
follows:-
A. (A)
ER.
Earth when using
Earth Recall
B. Line
(B)
Connect the telephone line to the wires marked A and B. If you
are to use Earth Recall then also connect the earth wire to the
terminal marked ER.
Once the line is connected please allow 30 seconds for the
phone to completely power up before trying to use it. If
the phone does not power up you can also press the small
button labelled ‘BOOT’, located on the rear of the phone
near to the bottom of the Circuit board.
Page 4
