66250457-EN - V 3.4 - 31/08/16
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VK4K/6256 Series “6 wire Bus” videokit
VK4K/6256 Series - Installation handbook
Art. 4833
Speaker unit
SETTINGS (DIP-SWITCH & JUMPERS)
4 WAY DIP-SWITCH
First two switches are used to set the speaker unit address: the speaker unit address is required for camera recall operation on 2
or more entrance systems.
SW
Switches 1,2
Unit Address
OFF OFF 1
ON OFF 2
OFF ON 3
ON ON 4
SW
Switches 3
Conversation Time
OFF
60 seconds
ON
120 seconds
SW
Switch 4
Door opening time (J2 = “L” position)
OFF
2 seconds
ON
6 seconds
JUMPERS J1, J2, J3, J4
H
L
J2 J3 J4
J1
J1 Position
Call reassurance tone volume
H High
L Low
H
L
J1
J2
J3 J4
J2 Position
Door open relay operating mode
H
Capacitor discharge
L
Dry contacts
H
L
J1 J2
J3
J4
J3 Position
Call buttons operating mode (only for Art. 4833)
H
Each button calls a different videophone
L
Both buttons call the same videophone (Address 1)
H
L
J1 J2 J3
J4
J4 Position
Built-in relays – back EMF protection (MOV)
H
NC contact
L
NO contact
When the door open relay operating mode is set to “capacitor discharge”*, one terminal of the electric lock must be connected to
ground while the second must be connected to “NO” terminal. The “NO” terminal will supply a temporary voltage when the speaker
unit receives the door open command.
* When “capacitor discharge” operating mode is set, one terminal of the electric lock must be connected to the ground while the
second one must be connected to “NO” terminal. The “NO” terminal will supply a temporary voltage when the speaker unit receives
the door open command (we suggest to use a 12Vac/dc 1A max electric lock). Setting “dry contacts” operating mode, when the
speaker unit receives the door open command, the “NO” terminal will be internally linked to the “C” terminal for the programmed
time (switch 4 of the 4 way dip-switch bank).
