67009600-EN - Edition 2015 - Rev. 1.0
20
VX2300 Digital System - “2 Wire” Audio/Video Door Entry System
VX2300 Digital System - Installation handbook
Art. 5188
Hands free intercom
VIDEOPHONE ADDRESS – SW1.1..7
SW1
The table below shows how to set the address of the videophone. Considering that ON = 1 and OFF = 0, multiply
each digit for the relevant decimal weight then sum values obtained to get the address: E.g. as highlighted in the
table OFF, ON,OFF, OFF, ON, OFF, ON in binary is equal to 0100101 then multiplying each digit for the relevant
decimal weight you obtain the address that is 37.
SWITCHES STATUS
BINARY CODE - DECIMAL WEIGHT
ADDRESS
7
6
5
4
3
2
1
64
32
16
8
4
2
1
OFF
OFF
OFF
OFF
OFF
OFF
ON
0
0
0
0
0
0
1
1
OFF
OFF
OFF
OFF
OFF
ON
OFF
0
0
0
0
0
1
0
2
OFF
OFF
OFF
OFF
OFF
ON
ON
0
0
0
0
0
1
1
3
OFF
OFF
OFF
OFF
ON
OFF
OFF
0
0
0
0
1
0
0
4
OFF
ON
OFF
OFF
ON
OFF
ON
0
1
0
0
1
0
1
37
ON
ON
ON
ON
ON
ON
ON
1
1
1
1
1
1
1
127
Note:
The maximum number of units allowed is 100 but the address of each unit can be a value between 1 and 127.
Set switch 8 to OFF position.
INTERCOMMUNICATION MODE – SW3.1
SW3
This switch establishes the intercommunication mode: in OFF position (default) intercommunication is between units
in the same apartment (same addresses but different extension); in ON position the intercommunication is between
units in different apartments (different addresses).
On installations where there are more than one intercom/videophone in the same apartment and intercommunication be-
tween different apartments is required, only one intercom/videophone may be set with this function (SW3.1=ON, SW3.2=OFF,
SW3.3=OFF). The other intercom/videophones in the apartment must be set for local intercommunication with extension
addresses “2-4” (slaves). From the intercom/videophone set for intercommunication with other apartments it will be not pos-
sible to intercommunicate within the apartment but slave extensions 2-4 will be able to intercommunicate with each other.
EXTENSION NO – SW.2..3
SW3
If the intercommunication between apartments is enabled (switch 1 of SW3 = ON)
leave these two switches in default position (both to OFF). Otherwise, if the inter-
communication is between the same apartment (switch 1 of SW3 = OFF), set the
extension addresses starting always from 1.
Note:
Set switch “4“ to OFF position
BUS LINE TERMINATION JP1
The factory preset for this jumper is “A” position: termination enabled. In case of more units (intercoms, videophones or video mon-
itors) in a parallel connection (bus wires are connected to the terminals of the first unit then from this to the second and so on up
to 4 units max) JP1 must be set to A position only for the last unit in the chain while on all other units must be set to B position (bus
termination disabled). In case of units of different type, videophones, video monitor, hands free or standard intercoms etc. remains
fixed the rule that the bus termination must be enabled only on the last unit in order of connection.
INTERCOM CONNECTION BOARD
A
B
JP1
1
2
3
4
5
6
7
8
9
10
Fig. 2
SIGNALS ON CONNECTION TERMINALS
Terminal
Signal
Description
1
GND
Ground
2
LED
Auxiliary LED +12Vdc input
3
4
5
LB
Local bell active low input
6
AL
Alarm input (not implemented yet)
7
8
BUS2
Bus input
9
10
BUS1
Bus input
2
3
EXTENSION NO.
OFF OFF 1 (default, master)
ON
OFF 2 (slave)
OFF
ON 3 (slave)
ON
ON 4 (slave)
