66550029-EN - V4.0 - 15/02/19
- 27 -
ESVK/6788 Series “2 wire Bus” videokit
ESVK/6788 Series - Installation handbook
Art. 125
Call expansion module
DESCRITPION
This module must be used in combination with speaker units Art. 4333 with firmware release 2.0 or higher. The module, in com-
bination with standard 4000 series button expansion modules (Art. 4842, Art. 4843, Art. 4844 and Art. 4845), allows to add up to
5 call buttons to the call buttons built-in the speaker unit to reach a maximum of 7 call buttons. To supply the LED of the button
expansion modules make the connection as shown in figure 1. From Art. 4333 firmware version 2.3 or later, the switch n.6 sets the
addressing order of the buttons so you can sort them as shown above.
Please follow the directions in the diagram to supply the push buttons modules.
Push to
Exit
4
6
5
3
2
1
ON
C
B
U
S
B
U
S
P
TE GN
D
G
N
D
N
O
N
C
V
AU
X
+C
V
ID
2
G
N
D
V
+V
2
E
B2
E
B1 GN
D
8
7
A
rt.
43
33
-2
5C
4
1
3C
4C
3
2
2C
-
1C
+
5
2C 3C 4C 5C
1C
Art.4
84
5
Art.125
1,5KOhm 1W
1
2
3
4
5
6
7
EB1
Switch 7 = OFF
11
12
1
2
3
4
5
EB1
Switch 7 = ON
Connect to
“EB1”
terminalof Art. 4333
Connect to
“GND”
terminalof Art. 4333
Connect to terminal
“1”
of the button expansion module
Connect to terminal
“2”
of the button expansion module
Connect to terminal
“3”
of the button expansion module
Connect to terminal
“4”
of the button expansion module
Connect to terminal
“5”
of the button expansion module
Connect to
“1C”
terminal of
Art. 4842, Art. 4843, Art. 4844 or Art. 4845
RED
BLACK
Fig. 1
New plate design, 1 button expansion module
Switch 7 = OFF
1
2
8
9
10
11
12
3
4
5
6
7
EB2
EB1
Switch 7 = ON
11
12
6
7
8
9
10
1
2
3
4
5
EB2
EB1
Push to
Exit
4
6
5
3
2
1
ON
C
B
U
S
B
U
S
P
TE GN
D
G
N
D
N
O
N
C
V
AU
X
+C
V
ID
2
G
N
D
V
+V
2
E
B2
E
B1 GN
D
8
7
A
rt.
43
33
-2
5C
4
1
3C
4C
3
2
2C
-
1C
+
5
2C 3C 4C 5C
1C
Art.4
84
5
5C
4
1
3C
4C
3
2
2C
-
1C
+
5
2C 3C 4C 5C
1C
Art.4
84
5
Art.125
Art.125
1,0KOhm 1W
Connect to
“EB1”
or
“EB2”
terminal
of Art. 4333
Connect to
“GND”
terminalof Art. 4333
Connect to terminal
“1”
of the button expansion module
Connect to terminal
“2”
of the button expansion module
Connect to terminal
“3”
of the button expansion module
Connect to terminal
“4”
of the button expansion module
Connect to terminal
“5”
of the button expansion module
Connect to
“1C”
terminal of
Art. 4842, Art. 4843, Art. 4844 or Art. 4845
RED
BLACK
Fig. 2
New plate design, 2 buttons expansion modules
Summary of Contents for ESVK Series
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