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Those signals are present on the exchange connection box that is
included in the exchange hardware:
1-
- 48 VDC
2-
No Connection
3-
No connection
4-
No connection
5-
Ground (GND) + data
6-
No connection
If the distance between the exchange and FT20 is more than the total lengths of the
two cables mentioned above (approximately 4 meters), then it would be necessary to
obtain flat telephone cable in order to make the connection between the two connection
boxes. Note that the cable should comply with the standards.
Connecting FT20 To The Exchange:
Cabling of the first telephone to be connected to the KTS line of the
exchange:
1)
Free end of the “system data cable” is attached to the KTS port socket of the system.
2)
One end of the “telephone data cable” is attached to the connection box that is at the
end of the system data cable. The other end is connected to the FT20 telephone.
3)
Connection of the A-B wires of the corresponding extension is made to the
connection box. In order to do that, two wires taken from the corresponding extension
connector of the exchange are attached to the red and green points on the connection
box.
NOTE: If the exchange and the first telephone are far away from each other for more
than 4 meters, then standard flat telephone elongation cable of sufficient length should
be applied in order to provide the connection between the two connection boxes.
4)
After the telephone has been connected, the extension settings should be done, as
will be explained in the next section.
