162
(MT12 - Gb2004)
Telephone and electrical connections
- Connect the two wires of the trunk line (tele-
phone pair) to terminals TIP and RING.
- Connect the two wires of the telephone to
terminals L- and L+ (telephone pair). The maxi-
mum distance between the interface and the
last telephone is 350m with 0.6mm² pair. Do
not lay the telephone cables together with
electrical cables.
- Connect the five wires of the intercom system
to terminals 1, 2, 3, 5 and 6.
- Connect the two wires of the electrical mains
to terminals 0 and 230 (or 0-127 according to
the ratings of the mains). It is necessary to
provide a disconnecting and safety bipo-
lar switch before the device.
- Insert the 2 plastic protection of the terminal
covers supplied with the product.
FT11D. Intercom-telephone interface.
It allows the connection of the trunk line and the
intercom system to home telephone.
Technical data
Power supply
127/230Vac
Maximum power consumption 7VA
Flashing time (button “R”)
80 ÷ 330msec
Ringing Voltage
48Vac - 15mA
Operating temperature
0° ÷ +40°C
Maximum humidity
85% RH
Housing
DIN 8 modules A
Note
The model is not provided with fuses, but it is
protected against overloading or short-circuit-
ing by temperature sensors (thermoprotector).
In order to reset them, it is necessary to cut off
the mains voltage for about one minute. Recon-
nect power after correcting the fault.
Terminals
Tip/ Ring trunk line connection
L-/ L+
telephone connection
0/ 127
input voltage 127Vac
0/ 230
input voltage 230Vac
1 audio transmission
2 audio receiver
3 ground
4 terminal connected to ground. It can be iso-
lated by cutting W5 jumper. The normally
open contact of relay, is connected between
terminals 4 and 5.
5 lock release - max 1A (common relay con-
tact)
6 intercom call input (12Vac - 150 mA)
7 normally closed contact of relay
INSTALLATION
The intercom-telephone interface FT11D in
DIN housing 8 modules A can be installed in
suitable electrical box provided with bar sup-
port in compliance with DIN 46277 standards.
It can also be fixed to the wall with two screws
and expansion plugs not supplied with the prod-
uct. The two plastic protections of the ter-
minal boards must be mounted in case of
wall installation. They can be eliminated in
case of installation on DIN bar in electrical box.
PROGRAMMING THE TELEPHONE
ST740W
Both a standard telephone and model ST740
can be used as internal extension.
When using art.ST740 it is necessary to pro-
gram it in order to use the buttons dedicated to
intercom functions. For information on pro-
gramming see page 152. Following are the
codes that can be assigned to the intercom
buttons.
Button
Code
RR
RRRR
can be programmed with a maxi-
mum number of 6 digits (emer-
gency number, telephone provider
special services).
OPERATION AND USE
Do not open or tamper with the device
since it contains high voltages inside. In-
stallation and maintenance must be donne
exclusively by specialized personnel.
Please consider that also if the telephone inter-
face is ON for outgoing / incoming calls the
telephone is connected to the trunk line directly.
To operate the telephone inteface set the switch
on “I”.
A flashing indicator (LED) shows the system is
working properly.
Incoming outside calls
- When receiving a call from the trunk line it is
enough to pick up the handset and to answer.
Outgoing external calls
- Pick up the handset.
- Wait for the dial tone of public exchanger.
- Dial the number.
Intercom connection without an outdoor
incoming call
- Pick up the handset.
- Wait for the dial tone of public exchanger.
(ST740)
- press
(Standard) - the “R” key twice (R+R) in a 3-
seconds lapse of time.
INTERCOM-TELEPHONE INTERFACE
I
NTERCOMS *
VIDEO INTERCOMS *
TELECOMMUNICA
TION
F
A
R
T
E
L
3 "
2
/
1
89
2 "
16
/
15
74
5 "
2
/
1
140
Trunk line
