7
EN
INTERCOMMUNICATING VIDEO DOOR ENTRY SYSTEM WITH
SWITCHING MODULE TYPE 935A
SYSTEM DESCRIPTION
The diagram shows the connection of one monitor and 7 interphones (all intercommunicating with each other and with the outdoor unit).
More or fewer monitors and interphones may be connected, but the total number must not exceed 8 units corresponding to the number of
push-buttons. When the total number of units is less than 8, only the terminal blocks of concerned intercommunicating units must be lin-
ked, excluding the call conductors of the other numbers.
Example: In the case of 3 intercom units (one monitor and 2 interphones as illustrated in the diagram above), connect terminal boards 1 to
11 on the interphones.
The monitors and interphones are fitted with loudspeakers capable of receiving separate electronic call signals both from the outdoor unit
and from other intercommunication devices. The calls from entrance panel (C1) and from the apartment door button (C2) are generated
by the power supply Type6680/C17, while the intercommunication call signal (C3) is supplied by the switching module Type935A.
OPERATING PRINCIPLE
The video door entry system consists of one camera entrance panel, one power supply and one or more monitors. When a push-button
of entrance panel is pressed, the ringtone rings in the corresponding apartment. Almost immediately the image of the caller appears on
the monitor. A number of built-in infrared LEDs diodes lights the coverage area when using a B/W camera, or LED diodes with white light
when using a colour camera. If desired, the user may simply raise the interphone, communicate with the caller and, if appropriate, activa-
te the door lock release. In this case the the door-opening time may be varied from 1 to 30 seconds using potentiomenter P3. The system
turns itself off automatically after a preset time, adjustable from 30 to 90 seconds using potentiometer P1 inside the power supply.
EXTERNAL COMMUNICATIONS:
When the external call signal is heard, pick up the interphone to directly communicate outside. 60 seconds after the start of the conversa-
tion an electronic device within the switching module type 935A switches communication to internal only, and so to continue the conver-
sation it is necessary to call again from the entrance panel.
IINTERNAL COMMUNICATIONS:
Lift interphone and press push-button corresponding to desired interphone. Outdoor unit is automatically excluded.
TERMINALS FOR MONITOR type 6300, 6301, 6303, 6500, 6501
1: Interphone receiver
2: Interphone microphone
3: Common audio line
4: Button for auxiliary services
5: Power supply negative
6: Power supply positive (minimum input voltage 15V DC)
7: Not connected.
8: Call from entrance panel
9: Lock push-button
10: 12V DC output for video distributor
11: Outdoor call
12: System auto-activation push-button
13: Green LED supply voltage
V1: For systems with coaxial cable, input for connection of the 75
Ohm video cable. For systems without coaxial cable, input for
connection of the V1 signal.
V2: For systems with coaxial cable, output for connection of the 75
Ohm video cable or connection of the load resistance of 75 Ohm
in the last monitor of the cable riser.
V3: For systems without coaxial cable, input for connection of the V2
signal.
M: Ground for terminals V1, V2, V3.
N.B.
The monitors type 6300, 6500 have a microswitch on the
back for setting the connection “coaxial cable/without coaxial
cable” and one for the setting “conersation privacy/without
conersation privacy” (type 6300,6303,6500).
INTERPHONE 6200
CN1: Monitor interface connector
7:
Lock release push-button
AU: Monitor auto-activation control
1:
Interphone receiver
2:
Interphone microinterphone
3:
Phonic common
6E:
entrance panel call
6:
Intercommunicating call
6P:
Appartment outdoor call
6S:
Ringtone activation output
TERMINALS FOR MONITOR type 6000, 6003
V1: Input for connection of 75 Ohm video cable in systems with
coax cable; input for connection of video signal V1 in systems
without coax cable.
V2: Output for connection of 75 Ohm video cable or 75 Ohm resi-
stor in last monitor in systems with coax cable.
V3: Input for connection of video signal V2 in systems without coax
cable.
N.B.
Terminal V3 must be shorted to terminal M in systems with
coax cable.
M:
Earth for terminals V1, V2 and V3.
+A: Not used
+:
Power supply (positive), minimum input voltage 15 V d.c.
-:
Power supply (negative), minimum input voltage 15 V d.c.
+D: +12 V d.c. output for video distributor
CH: Monitor activation call
CN2: Monitor interface connector
