16
NOTE2: 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.
Cabling of the telephone while there is another device connected to the
KTS line of the exchange:
1)
Parallel connection should be made from the connection box of the device that has
previously been connected to the KTS line to the wires that carry data (white), +12 VDC
(blue) and ground (black) signals and this connection should be made in the same
order to the connection box of the FT15 that is newly to be connected to the exchange.
NOTE: Short circuit or wrong order of the wires during the installation may result in
improper operation or malfunction of the exchange or the other devices that have been
connected to the KTS line.
2)
Then, extension connection to FT15 should be made. In order to do that, two wires
taken from the corresponding extension connector of the exchange should be attached
to the red and green points on the connection box of FT15.
3)
After the telephone has been connected, the extension settings should be done, as
will be explained in the next section.
IMPORTANT NOTE: If FT15 is to be connected over a distance longer than 5 meters,
then A-B (ring-tip) and serial data (KTS) wires should be carried over separate cables,
one should especially pay attention to employ shielded cables for long-distance
installations of serial data wires.
Defining Extension Number For FT15
At the first moment
FT15
is connected to the exchange, the two-digit extension number
is displayed in the “Terminal no=aa” format. That number has been set as “11” as
factory default and it signifies the last two digits of the extension number.
If the data on the LCD display are changing upon lifting and replacing the handset, then
that indicates extension settings are correct. However, if those data are not changing,
then the extension number of FT15 must be set. In order to do that:
1) The “Park” key is pressed until the message “Terminal no=aa” appears on the
display (aa= a two-digit number – last two digits of the physical number of the
extension.)
2) One proceeds by pressing the “Park” key in short whiles until the extension number
that is desired to be set appears on the LCD display.