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INSTALLATION 67
INSTALLATION
C
ONNECTIONS
The phone can operate in two different modes, i.e. two- or four-wire mode. In
the two-wire operation mode the phone operates as a standard phone; in the
four-wire operation mode the LED's are in service.
¾
Install two AA 1.5V batteries.
¾
Insert the telephone cable into the corresponding socket, introduce the
cable into the channel and connect the other end to the telephone
socket.
A: Open socket
B: Inverted cable
Connect the telephone socket to the PABX according to the following table:
Plug 6/4
Pin 1 Data line –
Pin 2
Pin 3
Extension
number
Pin 4 Data line +
Pins 2 and 3 (voice) must be connected to the telephone switch numbered
terminal that corresponds to the extension number to be connected. No polarity
must be complied with.
Pins 1 and 4 (data line) must be connected to the switch signalling terminals.
For more information please refer to the telephone switch instruction manual.
The polarity shown in the table must be complied with. If, by mistake, wires are