VK4K Installation Manual

User Manual: VK4K installation manual

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VIDEOKIT
VK4K/6256 SERIES
“6 Wire” bus one way, two way videokit

VK4K
VK4KC

6256
Installation handbook
66250457-EN
V 3.4
31/08/16

We recommend
This equipment is installed by a
Competent Electrician, Security or
Communications Engineer.

VK4K/6256 Series “6 wire Bus” videokit

Index
Introduction .................................................................................................................................................................................... 2
System components and available versions ................................................................................................................................ 3
General directions for installation ................................................................................................................................................ 5
Troubleshooting guide .................................................................................................................................................................. 6
Art. 4833 Speaker unit ................................................................................................................................................................... 7
Art. 4800 - 4800M Digital codelock module ............................................................................................................................... 10
4000 Series surface and flush mounting door station installation .......................................................................................... 13
Art. 6256 3.5" colour videophone .............................................................................................................................................. 15
6200 Series Videophone wall mounting instructions ............................................................................................................... 18
Installation diagrams ................................................................................................................................................................... 19

Introduction
The VK4K Series is a new range of videokits that use the 4000 Series external door station and the Art. 6256 Series videophone.
The camera / audio unit is the size of a single 4000 Series module and is available in either flush (VK4K) or surface (VK4K-S) mounting
versions.
As a result of using microprocessor technology in the door panel and videophone, a number of additional features have been added to enhance the operation of the videokits and give greater feedback to the visitor and user.
• Disability friendly, visual and acoustic signals from the door panel to inform the visitor of call status (call made, ringing, speak,
door open).
• Programmable door open and conversation time.
• Expandable to 4 entrance panels (requires an additional relay Art. 506N for each entrance panel).
• Connections for a push to exit button.
• Two methods of operating the electric lock:- 1) Dry contact relay, 2) capacitor discharge 12Vdc output.
• Facility for the connection of a codelock Art. 4800M, display module Art. 4820, stand-alone proximity reader Art. 4850 or standalone biometric reader Art. 4821 etc.
• Programmable number of call tone rings from 2 to a maximum of 8.
• Input for local door bell push button.
• Programmable timed privacy function from 15 minutes to a maximum of 8 hours.
• Door open status LED (additional wire required from the door to the videophone)
• Up to 4 videophones can be connected in parallel, all with intercommunication facility.
• Videophones can have a maximum of two additional audio telephone handsets connected in parallel.
• Camera recall on all systems, with selective recall on systems with multiple entrances.
• Door panel camera can be adjusted horizontally and vertically (10 degrees).

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System components and available versions
VK4K/6256 Colour videokit.
OUTDOOR
STATION

160,0

Camera unit
Art. 4833
pag. 7

45,0

22,5

49,8

143,0

135,0

15,7
43,8
120,0

INDOOR
STATION
Videophone
Art. 6256
pag. 15

Surface
Mounting

45,0

Flush
Mounting

ACCESSORIES
Power supply
Art. 850K
pag. 5

TWO WAY VERSIONS

ONE WAY VERSIONS

Fig. 1 - VK4K/6256 components (measures in mm)

VK4K-1/6256 - flush mounting
1 Outdoor station composed of:
1 Art. 4833-1/C: 1 button camera unit
1 Art. 4851:
Flush mounting box

1 Colour videophone
Art. 6256

1 Power supply
Art. 850K

VK4K-1S/6256 - surface mounting
1 Outdoor station composed of:
1 Art. 4833-1/C: 1 button camera unit
1 Art. 4881:
Surface mounting box

1 Colour videophone
Art. 6256

1 Power supply
Art. 850K

VK4K-2/6256 - flush mounting
1 Outdoor station composed of:
1 Art. 4833-2/C: 2 buttons camera unit
1 Art. 4851:
Flush mounting box

2 Colour videophones
Art. 6256

2 Power supplies
Art. 850K

VK4K-2S/6256 - surface mounting
1 Outdoor station composed of:
1 Art. 4833-2/C: 2 buttons camera unit
1 Art. 4881:
Surface mounting box

2 Colour videophones
Art. 6256

2 Power supplies
Art. 850K

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VK4K/6256 Series “6 wire Bus” videokit

System components and available versions

VK4KC/6256 Colour videokit plus a codelock module.
OUTDOOR
STATION
135,0

45,0

24,0

51,0

INDOOR
STATION
Videophone
Art. 6256
pag. 17

263,0

280,0

Camera unit
Art. 4833
pag. 7

ACCESSORIES
Power supply
Art. 850K
pag. 5

Codelock
module
Art. 4800M
pag. 10

Flush
Mounting

Surface
Mounting

TWO WAY VERSIONS

ONE WAY VERSIONS

Fig. 2 - VK4KC/6256 components (measures in mm)

VK4KC-1/6256 - flush mounting
1 Outdoor station composed of:
1 Art. 4833-1/C: 1 button camera unit
1 Art. 4800M: Codelock module
1 Art. 4852:
Flush mounting box
VK4KC-1S/6256 - surface mounting
1 Outdoor station composed of:
1 Art. 4833-1/C: 1 button camera unit
1 Art. 4800M: Codelock module
1 Art. 4882:
Surface mounting box
VK4KC-2/6256 - flush mounting
1 Outdoor station composed of:
1 Art. 4833-2/C: 2 buttons camera unit
1 Art. 4800M: Codelock module
1 Art. 4852:
Flush mounting box
VK4KC-2S/6256 - surface mounting
1 Outdoor station composed of:
1 Art. 4833-2/C: 2 buttons camera unit
1 Art. 4800M: Codelock module
1 Art. 4882:
Surface mounting box

1 Colour videophone
Art. 6256

1 Power supply
Art. 850K

1 Colour videophone
Art. 6256

1 Power supply
Art. 850K

2 Colour videophones
Art. 6256

2 Power supplies
Art. 850K

2 Colour videophones
Art. 6256

2 Power supplies
Art. 850K

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VK4K/6256 Series “6 wire Bus” videokit

General directions for installation
CONNECTION TO MAINS
The system must be installed according to national rules in force, in particular we recommend to:
• Connect the system to the mains through an all-pole circuit breaker which shall have contact separation of at least 3mm in each
pole and shall disconnect all poles simultaneously;
• The all-pole circuit breaker shall be placed for easy access and the switch shall remain readily operable.
POWER SUPPLY INSTALLATION
• Remove the terminal side covers by unscrewing the retaining screws;
• Fix the power supply to a DIN bar or directly to the wall using two expansion type screws;
• Switch off the mains using the circuit breaker mentioned above and then make the connections as shown on the installation diagrams;
• Check the connections and secure the wires into the terminals;
• Replace the terminal covers and fix them using the relevant screws;
• When all connections are made, restore the mains.
CABLE SIZE
Video connections and Audio connections must be wired in twisted pair: pair the video lines (terminals/signals “V1” and “V2”),
pair the audio lines (terminals /signals “1” and “2”).
Power
supply

BROWN

Videophone

* Couple the two wires to
double the section.

+V *

WHITE/BROWN
BLUE

2 wires
Ø 1mm2

–*

WHITE/BLUE

20mt max

Distance Suggested cables type
Up to
CAT5/CAT6 FTP/UTP
40mt
AWG24

ORANGE

1

WHITE/ORANGE

2

GREEN

V1

WHITE/GREEN

V2

Outdoor
station

Up to 40mt
"+V" and "–"
Ø 0.35mm2

Power
supply

Videophone
2 wires
Ø 1mm2

"1" and "2"
Ø 0.35mm2 Twisted pair
"V1" and "V2"
Ø 0.35mm2 Twisted pair

–
1

Outdoor
station

2
V1
V2

Up to 50mt

20mt max

Distance Suggested cables type
Up to
Belden 9746 or equivalnet
50mt
4 pair (8 cores) 0.35mm2
AWG22 - 48Ω/Km
From
Belden 9690 or equivalnet
50 to
3 pair (6 cores) 0.8mm2
100mt
AWG18 - 19.2Ω/Km
From
Belden 9157 or equivalnet
100 to
4 pair (8 cores) 0.8mm2
200mt
AWG18 - 19.2Ω/Km

+V

"+V" and "–"
Ø 0.75mm2
"1" and "2"
Ø 0.5mm2 Twisted pair
"V1" and "V2"
Ø 0.5mm2 Twisted pair

+V
–
1

Outdoor
station

2
V1
V2

from 50 to 100mt
"+V" and "–"
Ø 1.5mm2
"1" and "2"
Ø 0.75mm2 Twisted pair
"V1" and "V2"
Ø 0.75mm2 Twisted pair

+V
–
Outdoor
1 station
2
V1
V2

from 100 to 200mt

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VK4K/6256 Series “6 wire Bus” videokit

Troubleshooting guide
In case of system failure, try the following preliminary checks:
• Check that the cables are connected as shown in the installation diagram and that the cables are firmly fixed into the relevant terminals;
• Check that the mains voltage is available on terminals 230Vac (or 127Vac) and 0 of the power transformer Art. 850K;
• Check the 24Vac voltage output of the power transformer Art. 850K. If this voltage is not available it could be the 1,6A fuse, in this case
remove the mains voltage, remove possible short-circuits or overload sources then replace the fuse with an equal or equivalent one.
• Check that the voltage between the terminals “+” and “-” of the speaker unit is between 16 and 20Vdc.
If the problem persists try the tests in the following table or contact technical support.
SYMPTOM
CAUSE
The door station is not able to call the ex- • Wrong connection between door statension (the bell LED is switched on for 2 tion and the videophone
seconds):
• Cable size too small.
• Programmed videophone address incorrect.
• You have changed the videophone address without power down the system.

External call works but when answered
the communication fails:
During the conversation it is not possible
to open the door:
During the conversation it is not possible
to open the door but the key LED on the
door station switches on for the programmed time:
Speech only from outside to inside:
Low volume of speech:

• Cable size too small.
• Cable size too small.
• Incorrect position of J2 jumper.
• Electric lock wires unconnected or in short.
• Wrong electric lock type.

• Wire “2” broken or in short.
• Volume trimmers of door station require
adjustment.
Noise over the speech line during the con- • The 6 common wires are cabled toversation:
gether with 230 or 380Vac power lines.
• The 6 common wires are cabled together with 24Vac videophone power
supply wires.
Camera recall service does not work:
• Camera recall button pressed for a number of times different from the ID of the
door station to be switched on.
Intercommunicating call does not work: • ”Key” button pressed for a number of
times different from the videophone address value.
The video shown on the monitor is of a bad • V1,V2 signals unconnected, reversed or
quality and the image is distorted or double shorted.
• The switches of the two way dip-switch
are not both in ON position.
• V1,V2 of the last Art. 316N (if present)
not closed with 75 Ohm resistor.
Local call does not work:
• Wrong connection or call button broken.

SOLUTION
• Check the 6 common wire connections
especially wire “1” (speech line/data).
• Increase cable size or double up using
two wires for each connection.
• Check videophone address on dip-switches.
• Power down the system then power up
again to detect the new videophone address.
• Increase cable size or double up using
two wires for each signal.
• Increase cable size or double up using
two wires for each signal.
• Check J2 position on the door station.
• Check connection.
• Check that the electric lock type (ac or dc)
is suitable for the J2 position chosen.
• Check connection of wire “2”.
• Adjust the trimmers until the required
volume is reached.
• Separate the 6 common wires from the
high voltages cables.
• Separate the 6 common wires from the
two 24Vac wires or cable them together
only for a short distance.
• Check the ID (1..4) of the door station to be
recalled and press the camera recall button as many time as the ID value.
• Check the address of the videophone
you are calling and try again.
• Check that the wires are not broken or
shorted.
• Set both switches to the ON position.
• Use 2x 75 Ohm resistors to connect V1
& V2 to 0V.
• Check connection or replace the button.

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Art. 4833 Speaker unit

R02A
ON

H
L

1 2 3 4

sw

+V - 12Vout 1 2 V2 V1 BS SL PTE C NC NO

Fig. 1

J1 J2 J3 J4

DATA

Fig. 2

DESCRIPTION
Speaker unit module Art. 4833 comprising of high quality auto iris lens CCD Day/Night colour camera with infrared illumination LEDs.
LEDS
When illuminated, indicates that it is not possible to make a call because a call or a conversation is in progress (from
the outdoor station from which you are calling or from another outdoor station on systems with multiple entrances).
The LED will be off when the system is in stand-by.
If illuminated, indicates that the call from the outdoor station is in progress. The LED will switch OFF when the call is
answered or after the programmed number of rings.
If illuminated, indicates that it is possible to speak because the call has been answered. The LED will switch OFF at
the end of a conversation (or at the end of the conversation time).
If illuminated, indicates that the door lock has been operated. It will switch OFF at the end of the programmed “door
opening” time.
CONTROLS (SPEAKER & MICROPHONE VOLUME)
Trimmer to adjust the speaker volume. Rotate clockwise to increase or anticlockwise to decrease.

Trimmer to adjust the microphone volume. Rotate clockwise to increase or anticlockwise to decrease.

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VK4K/6256 Series “6 wire Bus” videokit

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.
Switches 1,2
Unit Address
OFF
OFF
1
ON
OFF
2
SW
OFF
ON
3
ON
ON
4
Switches 3
Conversation Time
OFF
60 seconds
ON
120 seconds
SW

SW

Switch 4
OFF
ON

Door opening time (J2 = “L” position)
2 seconds
6 seconds

JUMPERS J1, J2, J3, J4
J1 Position
Call reassurance tone volume
H
High
L
J1 J2 J3 J4
L
Low
J2 Position
Door open relay operating mode
H
H
Capacitor discharge
L
J1 J2 J3 J4
L
Dry contacts
J3 Position
Call buttons operating mode (only for Art. 4833)
H
H
Each button calls a different videophone
L
J1 J2 J3 J4
L
Both buttons call the same videophone (Address 1)
J4
Position
Built-in
relays – back EMF protection (MOV)
H
H
NC contact
L
J1 J2 J3 J4
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.
H

* 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).

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Art. 4833 Speaker unit
BUILT-IN RELAYS – BACK EMF PROTECTION
The Art. 4833 includes selectable back EMF protection on the relays. The jumpers marked J4 (One jumper for each relay) are used to
select the protection type. When using a fail secure lock with connections C & NO the jumper should be in the NO position. When using
a fail open lock with connections C & NC the jumper should be in the NC position and when using the codelock to trigger a gate controller or another third party controller the jumper should be removed completely (This disables the protection on the relay).
LOCK RELEASE BACK EMF PROTECTION
A varistor must be fitted across the terminals on AC lock release (Fig.1A) and a diode must be fitted across the terminals on a DC
lock release (Fig.1B) to suppress back EMF voltages. Connect the components to the lock releases as shown in figures.

VARISTOR (MOV)

DIODE
1N4002

12V AC
LOCK RELEASE

12V DC
LOCK RELEASE

Fig. 1A

SIGNALS
+V
–
12Vout
1
2
V1
V2
BS
SL
PTE
C
NC
NO

Fig. 1B

Power input 16÷20Vdc
Power input ground
12Vdc. 0,3A max. output to supply accessiories
Speech line input toward the loudspeaker and data signal (about 12V in stand-by, about 5V with a conversation in
progress)
Speech line output from the microphone (about 12V in stand-by, about 3V with a conversation in progress)
Balanced video signal sync.–
Balanced video signal sync.+
Input/Output busy signal (about 12V in stand-by, about 0V with a call in progress)
Active low output to enable the enslavement relay for video signal exchange (active with a call in progress)
Active low input to control directly the door open relay
Door open relay common contact
Door open relay normally closed contact
Max 24Vdc, 3A when used as dry contacts relay
Door open relay normally open contact

TECHNICAL SPECIFICATION
Power Supply:
Supplied by the BUS line, 20Vdc
Power consumption:
Stand-by: 70mA
Operating: 250mA
Working Temperature: -10 +50° C

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Art. 4800M Digital codelock module
CODELOCK UNIT MODULES ART. 4800M
The module features 12 stainless steel buttons (Keys 0 - 9,
ENTER and CLEAR), 2 LED’s for progress information during
use and programming and a mirror finish stainless steel front
plate (Standard version). With three integral relays each with
common, normally open and normally closed connections and
two inputs to enable the external triggering of relays one and
two (For example, push to exit button). Key presses are signalled
both acoustically and visually while each button press has a tactile feel. Entering the correct code followed by ENTER will activate the relevant relay. Programming is carried out through
the same keypad following a simple programming menu. The
module can be combined with other 4000 Series modules in an
audio or video intercom system.
‘
Fig. 1 - Art. 4800M
MAIN FEATURES
• 3 C, NC, NO relay outputs (24Vac/dc – 5A max);
• 3 Programmable secret codes (one for each relay);
• Each relay can be set to be activated for a specific time (01 to 99 seconds) or to work as latch;
• Two active low inputs to command directly the relay 1 and 2;
• Programming menu guarded by a 4-8 digit programmable engineer’s code;
• Visual and Acoustic signal during operating and programming;
• Keypad illumination LEDs;
GENERAL DIRECTIONS FOR INSTALLATION
In order to achieve the best results from the schematics described it is necessary to install only original VIDEX equipment, strictly
keeping to the items indicated on each schematic and follow these General Directions for Installation:
• The system must be installed according to national rules in force, in any case the running of cables of any intercom unit must be
carried out separately from the mains;
• All multipair cables should be compliant to CW1308 specification (0.5mm twisted pair telephone cable).
• Cables for speech line and service should have a max resistance of 10 Ohm
• Lock release wires should be doubled up (Lock release wires and power supply wires should have a max resistance of 3 Ohm);
• The cable sizes above can be used for distances up to 50m. On distances above 50m the cable sizes should be increased to keep
the overall resistance of the cable below the RESISTANCES indicated above;
• Double check the connections before power up;
• Power up the system then check all functions.
LOCK RELEASE BACK EMF PROTECTION
A varistor must be fitted across the terminals on AC lock release (Fig.1A) and a diode must be fitted across the terminals on a DC
lock release (Fig.1B) to suppress back EMF voltages. Connect the components to the lock releases as shown in figures.

VARISTOR (MOV)

DIODE
1N4002

12V AC
LOCK RELEASE

12V DC
LOCK RELEASE

Fig. 1A

Fig. 1B

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Art. 4800M Digital codelock module
BUZZER BACK EMF
When using intercoms with buzzer call (Art.924/926, SMART1/2, 3101/2, 3001/2 and 3021/2) add one 0.1uF (100nF) capacitor between terminals 3 and 6 on the telephone.
BUILT-IN RELAYS – BACK EMF PROTECTION
The Art. 4800M includes selectable back EMF protection on the relays. The jumpers marked MOV (One jumper for each relay) are
used to select the protection type. When using a fail secure lock with connections C & NO the jumper should be in the NO position.
When using a fail open lock with connections C & NC the jumper should be in the NC position and when using the codelock to
trigger a gate controller or another third party controller the jumper should be removed completely (This disables the protection
on the relay).
PROGRAMMING (SEE ALSO THE RELEVANT FLOW CHART)
• Enter the “ENGINEER’S CODE”: first time type six times “1” (111111 factory preset) and press “ENTER” (The red LED will illuminate);
• Confirm “ENGINEER’S CODE” (typing again the same) or type the new code (4 to 8 digits) then press “ENTER” (Melody). Pressing
twice the “ENTER” button without changing the “ENGINEER’S CODE”, will exit from the programming;
• Enter the code (4 to 8 digits) to enable “RELAY 1” or re-enter the existing code then press “ENTER” (Melody);
• Enter the “RELAY 1” operation time (2 digits 01 to 99 I.E. 05=5 seconds, 00= remain open time) or re-enter the existing time then
press “ENTER” (Melody);
• Enter the code (4 to 8 digits) to enable “RELAY 2” or re-enter the existing code then press “ENTER” (Melody);
• Enter the “RELAY 2” operation time (2 digits 01 to 99 I.E. 05=5 seconds, 00= remain open time) or re-enter the existing time then
press “ENTER” (Melody);
• Enter the code (4 to 8 digits) to enable “RELAY 3” or re-enter the existing code then press “ENTER” (Melody);
• Enter the “RELAY 3” operation time (2 digits 01 to 99 I.E. 05=5 seconds, 00= remain open time) or re-enter the existing time then
press “ENTER” (Melody);
• The system is ready to use (the red LED will be off ).
PROGRAMMING NOTES
• After pressing enter following a command, press “ENTER” a further twice to exit the programming menu.
RETURN SYSTEM TO PRESET ENGINEER’S FACTORY CODE
• Turn off power to code lock;
• Keep “ENTER” button pressed while turning the power back on;
• Release “ENTER” button;
• The engineer’s code is now set to “111111” (six times one).
OPERATION
• Type in the programmed code and press “ENTER”;
• If the code is correct, the green LED will illuminate for approx. 2 seconds and the relay relevant to the code will operate for the programmed time;
• If a wrong code is entered, a continuous melody will sound
for 4 or more seconds, according to the number of mistakes;
• To switch off any relay while operating, type in the relevant
code then press the “CLEAR” button;

TERMINALS:
SW2
Relay 2 command signal (active low)
SW1
Relay 1 command signal (active low)
NC3
Relay 3 normally closed contact
NO3
Relay 3 normally open contact
C3
Relay 3 common contact
NC2
Relay 2 normally closed contact
NO2
Relay 2 normally open contact
C2
Relay 2 common contact
NC1
Relay 1 normally closed contact
NO1
Relay 1 normally open contact
C1
Relay 1 common contact
–
12/24Vac/dc power input
+

OPERATION NOTES
• To operate relays together, set the same code for each relay;
• If a wrong code is entered, the system will lock out for 5 seconds which will increase each time a wrong code is entered.
The system will operate only when the correct code is entered.

Max
24Vac/dc
3A

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Art. 4800M Digital codelock module
TECHNICAL SPECIFICATION
Power Supply:
12/24 Vac/dc – 2VA
Power Consumption:
Stand-by:
20mA
Operating: 70mA
Working Temperature: -10 +50° C
PROGRAMMING FLOW-CHART
ENTER “ENGINEER’S CODE“
AND PRESS “ENTER“

First time 6 times 1 "111111"
factory preset

Red LED will be ON
CONFIRM OR CHANGE “ENGINEER’S CODE“
AND PRESS “ENTER“

Type again six times “1”
or the new enginner’s code 4 to 8 digits

Melody
ENTER “ACCESS 1 CODE“
AND PRESS “ENTER“

Code to enable
relay 1
4 to 8 digits

ENTER “ACCESS 1 TIME“
AND PRESS “ENTER“

2 digits (01 to 99)
I.E. 05 = 5 seconds
00 = remain open time

ENTER “ACCESS 2 CODE“
AND PRESS “ENTER“

Code to enable
relay 2
4 to 8 digits

ENTER “ACCESS 2 TIME“
AND PRESS “ENTER“

2 digits (01 to 99)
I.E. 05 = 5 seconds
00 = remain open time

ENTER “ACCESS 3 CODE“
AND PRESS “ENTER“

Code to enable
relay 3
4 to 8 digits

ENTER “ACCESS 3 TIME“
AND PRESS “ENTER“

2 digits (01 to 99)
I.E. 05 = 5 seconds
00 = remain open time

Melody

Melody

Melody

Melody

Melody

Melody
Red LED will be OFF

SYSTEM READY TO USE

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4000 Series Surface and flush mounting door station installation
EXAMPLE: INSTALLING A FOUR MODULE OUTDOOR STATION
B

D
F

fig. 1

C

A

C

E

D

fig. 2

H

Y

fig. 3
L

C

G

G

W
L

fig. 4

fig. 5

H

fig. 6
C

C

fig. 7

M

H

M
N

M

fig. 8

P

H

fig. 9

O

fig. 10
N

H

Q
P

N

fig. 11

fig. 12

fig. 13

fig. 14

fig. 15

fig. 16

fig. 17

fig. 18

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VK4K/6256 Series “6 wire Bus” videokit

4000 Series Surface and flush mounting door station installation
INSTALLING A SURFACE MOUNT DOOR STATION
1. Place the surface box against the wall (165-170cm between the top of the box and the floor level as shown in Fig. 1) and mark the
fixing holes for the wall plugs and the hole for the cables E (fig. 2). Observe the orientation of the box with the hinge on the left;
In order to prevent water ingress we highly recommend using a silicon sealant between the wall and the back box C
(Fig.3) and around all holes D (Fig.3);
2. As shown on Fig. 2, drill the fixing holes A, insert the wall plugs B and feed the cables E through the surface box opening D, fix
surface box C to the wall using the screws F;
3. Apply the Y silicon sealant on top of each module as shown in Fig. 4;
4. Before installation of the module support frame, hook the modules G to the support frame H as shown in Fig. 5 then, as shown
in Fig. 6, fit the two anti-tampering locks W for each module (do the same for the second module support frame);
5. When you have more than one support frame, hook the support frame to the surface box starting from the left. For convenience we
will described how to attach the left frame but the same must be carried out for the right frame. As shown in Fig. 7, hook the module
support frame H (complete with modules) to the surface box C moving the frame as suggested from pointers. Ensure that the pivots
L (Fig. 7) go inside the relevant housing M as shown in Fig. 8;
6. As shown on Fig. 9, pull back the module support frame H while moving it slightly to the left as suggested by the pointers;
7. As shown in Fig. 10, open the module support frame H as suggested by the pointer, hook the hinge locks N to the hinges M,
make the required connections using the screwdriver provided P (flat blade end) and make the required adjustment by adjusting the settings (through openings O) and adjust trimmers;
8. Repeat the same operations described above for the second module support frame (or for the third if available);
9. When the system has been tested and is working correctly, move back the module support frames carefully, fix them to the surface
box using the screwdriver provided P (torx end) and the pin machine torx screws Q (Fig. 11). Note: do not over tighten the screws
more than is necessary.
INSTALLING A FLUSH MOUNTING DOOR STATION
When flush mounting and the number of modules is greater than 3, the required back boxes need to be linked together (before
embedding them in the wall) as shown on Fig. 14, 15 and 16:
• Arrange the back boxes and remove knockouts to allow cables to be fed from one back box to the other;
• Hook the spacers to first back box then hook the second back box to obtain the result shown on Fig. 16;
1. Protect the module support frame fixing holes from dust then embed the back box into the wall (165-170cm between the top
of the box and the floor level as shown on the Fig. 1) feeding the cables E (Fig. 2) through a previously opened hole in the box.
Observe the direction of the box ensuring the hinge is on the left and take care that the box profile is in line with the finished
wall profile;
In order to prevent water ingress we highly recommend using a silicon sealant between the wall and the back box H
(Fig.12);
2. Continue from step 4 of surface mounting instructions , but at step 7 hook the hinge locks N as shown on Fig. 13.
Note: if additional holes are made in the surface box, oxidation problems may appear unless the unprotected metal is
coated with a protective paint.
NOTES
• The screwdriver’s blade has two sides, one flat and one torx, to select one of them unplug the blade from the screwdriver body
and plug it into the required side.
• The example shows the use of only one back box bottom hole for wires, this is done to keep file drawings clear. Naturally the
installer can use the left hole or the right or both if required.
HOW TO REMOVE THE CARD NAME HOLDER
• To avoid damage to the module front plate, tape the side that will be in contact with the screwdriver blade;
• lnsert the screwdriver (flat side) into the card-holder hole as shown in Fig. 17;
• Move the screwdriver to the left as shown in Fig. 18 to extract the card name holder;
• Edit the card name then replace it inside the holder and refit: insert the holder inside its housing from the left or right side then
push the other side until it clips into place.

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VK4K/6256 Series “6 wire Bus” videokit

Art. 6256 3.5" colour videophone
144 mm

+V
1
2
V1
V2
24Vac
0Vac

182 mm

LB
SB
LD
2A
3A
4A
5A

27 mm

SW1
SW2

PT3 PT2

PT1
SW1

Fig. 1

Fig. 2

DESCRIPTION
Surface mount videophone incorporating a 3.5” Hi-Res full colour active matrix LCD monitor specific for “6 wire” videokit (VK4K,
VRVK and VK8K range). It includes 4 buttons: “camera recall”, “open door” , “service” and “privacy”.
2 LED’s* indicate the privacy activated and open door. Programmable privacy duration and number of rings. Intercommunicating
call and door call. Adjustments: call tone volume switch (3 levels), picture hue, contrast and brightness.
* The operation of some LED’s and the functions described may require additional cabling

PUSH BUTTONS
Service push button.
Shorts the “SB” terminal to GROUND (open collector 24Vdc 100mA max) while the button remain pressed.
Camera recall button.
Pick up the handset then press the button (Press once for door/gate 1, twice for 2 and so on up to a maximum of 4
entrances): the relevant LED switches ON and the monitor switches on showing the video from the door panel. The
speech is also live and the door can be opened by pressing
.
Door-open / intercommunicating call button.
With the handset lifted and speech lines open to the entrance panel, press this button to open the door. If the terminal “LD” is properly connected the relevant LED remains switched ON until the door is closed.
Intercommunication only works when the system is in stand-by condition.
Switch 4 of the SW1 dip-switch selects the type of intercommunication:
OFF Intercommunication between two apartments - pick up the handset and press the key button to call the videophone(s) in the other apartment. A busy tone will signal that the other videophone is in conversation with the
door station and so cannot be called.
ON Intercommunication between videophones in the same apartment
- pick up the handset and press the key button one, two, three or four times to call videophone with extension address 1, 2, 3 or 4 (Set on dip-switch 2&3 of SW1).
Any intercommunicating conversation is always interrupted by an external call (i.e. External calls take priority).
Privacy ON-OFF button.
When the system is in stand-by, the pressing of this button activates (LED switched on) or disables (LED switched
off ) the “privacy” service. The service is automatically disabled when the programmed privacy time expires. When
the service is enabled the videophone does not receive calls.

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VK4K/6256 Series “6 wire Bus” videokit

Art. 6256 3.5" colour videophone
LEDS

CONTROLS
Door open LED.
Can be used to indicate the status of a door or gate. It
requires a switched 12Vdc connection to terminal“LD”.

SW1 Call tone volume controll (3 levels).

Privacy ON/OFF LED.
When the videophone is in stand-by, this LED
signals the privacy service status
(ON = service enabled, OFF = service disabled).

PT1 Brightness control.
PT2
PT3

PT2 Hue control.
PT3 Contrast control.

SETTINGS (DIP-SWITCH)
The videophone setup is carried out by the 2 dip-switch banks.
Switches 1
Apartment Address
OFF
1
ON
2
Switches 2,3
Extension Address
OFF
OFF
1
ON
OFF
2
OFF
ON
3
ON
ON
4
Switch 4
Intercommunication
OFF
Between videophones of the two apartment
ON
Between videophones in the same apartment
Switches 5,6
Number of rings
OFF
OFF
2
ON
OFF
4
OFF
ON
6
ON
ON
8
Switches 7,8
Privacy duration time
OFF
OFF
15 minutes
ON
OFF
1 hours
OFF
ON
4 hours
ON
ON
8 hours
2 WAY DIP-SWITCH (SW2)
The two way dip-switch adjusts the impedance of the video signal. The default setting is “ON” for both
switches (75 Ohm): when there are more videophones in parallel connection (without video distributor)
both switches must be “ON” only on the last videophone (looking at the connection order) while for all
other videophones both switches must be set to “OFF”.

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VK4K/6256 Series “6 wire Bus” videokit

Art. 6256 3.5" colour videophone
SIGNALS ON CONNECTION BOARD
+V
20Vdc Input/Output (As input 16÷20Vdc 0,5A – as output 20Vdc 0,5A max)
–
Ground reference for +V terminal.
1
Speech line output from handset’s microphone and data signal (Approx. 12V in stand-by, 5V during a conversation)
2
Speech line input toward the handset’s loudspeaker (Approx. 12V in stand- by, approx. 3V during a conversation)
V1
Balanced video signal 1 sync.V2
Balanced video signal 2 sync.+
24Vac 1A max power input
LB
SB
LD
2A
3A
4A
5A

Local call input (5V in standby, 0V to trigger)
Service button (open collector) active low output. The button goes active when the button is pressed (Open Collector 24Vdc 100mA max)
12Vdc input for door-open LED
Speech line input toward the loudspeaker of the parallel telephone (Approx. 12V in stand-by, 3V during a conversation)
Output switched ground for parallel telephone
Output call tone for parallel telephone
Input for door-open command from parallel telephone

TECHNICAL SPECIFICATION
Power Supply:
Supplied by the BUS line, 20Vdc
Power consumption:
Stand-by: 50mA Max
Operating: 200mA Max
Working Temperature: -10 +50 °C

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VK4K/6256 Series “6 wire Bus” videokit

6200 Series Videophone wall mounting instructions
D

2

A

C
B
F

135cm

E
F

A
B

C

1
Fig. 1

Fig. 2

Fig. 3

2

A
G

Fig. 4

1

B
Fig. 5

Fig. 6

1. In order to install the videophone, it is necessary to remove the cover, which contains all the electronics, from the base: firstly
disconnect the handset from the videophone (by removing its plug from the videophone), then press lightly the bottom part of
the videophone and simultaneously pulling outwards the upper part as shown in Fig. 1.
2. Put the base of the unit on the wall at approx 135cm from the finished floor to mark the points for the fixing holes “A” (Fig. 2)
remembering that the wires “D” (Fig. 3) must be fed through the hole “E” (Fig. 3). If you use the flush mounting box 503, embed
it into the wall vertically at approx. 140cm from the finished floor and the base.
3. Following Fig. 3, make the holes “A”, insert the wall plugs “B” and fix the base with the screws “C” feeding the wires “D” into
the hole “E”. If you have used the box 503, fix the base to the wall through the holes “F” using the screws “C”.
4. As shown in Fig. 4A, connect the wires to the removable terminals following the provided installation diagram. Connect the terminal blocks to the electronics contained in the cover as shown in Fig. 4B. Reinsert the handset and test system before closing.
Note: Contrast and hue trimmers can be adjusted only if the videophone is open. Note while testing the system, it is
advisable to hold the cover with your hand closing manually the hook switch of the handset (see Fig. 4B reference “G”).
5. Once testing is complete and all the necessary adjustments are made, disconnect the handset from the cover and close the unit
as shown in Fig. 5: first hook it on the bottom then push in the top until you hear the clip.
6. Reconnect the handset and hang it as shown in Fig. 6.

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VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
NOTES AND SUGGESTIONS
• All diagrams refer to all kits versions: flush or surface, colour or black & white.
• Dashed connections refer to optional connections (“Local bell”, “Push to exit” & “Door monitor”).
• Some diagrams show how to connect a 12Vdc electric lock: these directions are suitable for all diagrams in this manual.
• Each time a setting is changed on a videophone (address, extension, number of rings etc.), the videophone must be disconnected
from the relevant connection board then after a few seconds reconnected again to allow the recognizing of the new setting.
• All diagrams shown are valid for B&W or colour systems with surface or flush mount door station.

DECLETION OF RESPONSIBILITY
This manual has been written and revised carefully. The instructions and the descriptions which are included in it are referred to
VIDEX parts and are correct at the time of print. However, subsequent VIDEX parts and manuals, can be subject to changes without
notice. VIDEX Electronics S.p.A. cannot be held responsible for damages caused directly or indirectly by errors, omissions or discrepancies between the VIDEX parts and the Manual.

WE RECOMMEND
This equipment is installed by a Competent Electrician, Security on Communications Engineer

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VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
VIDEOKIT VK4K-1/6256, VK4K-1S/6256

LB
SB
LD
2A
3A
4A
5A

1
2
V1
V2

+V
_

Local Bell

1 2

ON

SW2

ON

SW1

1 2 3 4 5 6 7 8

Art.6256
Address N. 1 Ext.1

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.
Push to
Exit

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Art.4833-1

1

ON

1

1 2 3 4

ON
1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

Door
Monitor

Title:

Data creazione:

Titolo:

Data modifica:

23/10/2015

Foglio

1/1

18/11/2015
Videx Electronics S.p.A.

Notes:

Autore:

Marco Rongoni

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-002.dwg

20
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ON

1 2 3 4 5 6 7 8
1 2

SW1
SW2

1
2
V1
V2

+V
_

Art.6256
Address N. 2 Ext.1

LB
SB
LD
2A
3A
4A
5A

VK4K/6256 Series - Installation handbook
Local Bell

SW2

+V
_

SW1

1
2
V1
V2

1 2

Art.6256
Address N. 1 Ext.1

LB
SB
LD
2A
3A
4A
5A

ON

1 2 3 4 5 6 7 8

1

Push
to
Exit

1

2

1 2 3 4

ON

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

1

1 2 3 4

ON

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.4833-1D

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

ON

Art.4833-1D

Local Bell

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

VIDEOKIT VK4K-2/6256, VK4K-2S/6256

ON

17/11/2015

18/11/2015

1 1

vk4k62h-003.dwg

Marco Rongoni

21

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VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
VIDEOKIT VK4KC-1/6256, VK4KC-1S/6256

LB
SB
LD
2A
3A
4A
5A

1
2
V1
V2

+V
_

Local Bell

1 2

ON

SW2

ON

SW1

1 2 3 4 5 6 7 8

Art.6256
Address N. 1 Ext.1

Push to
Exit
Door
Monitor

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.4833-1

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

ON

1

1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

1

ON
1 2 3 4

Art.4800

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

Title:

Data creazione:

Titolo:

Data modifica:

17/11/2015

Foglio

1/1

17/11/2015
Videx Electronics S.p.A.

Notes:

Autore:

Marco Rongoni

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-004.dwg

22
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ON

1 2 3 4 5 6 7 8
1 2

SW1
SW2

1
2
V1
V2

+V
_

Art.6256
Address N. 2 Ext.1

LB
SB
LD
2A
3A
4A
5A

VK4K/6256 Series - Installation handbook
Local Bell

SW2

+V
_

1 2

SW1

Art.6256
Address N. 1 Ext.1

LB
SB
LD
2A
3A
4A
5A

1 2 3 4 5 6 7 8

1
2
V1
V2

ON

Push
to
Exit

1

1

1 2 3 4

ON

1 2 3 4

ON

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

2

1

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.4833-1D
Art.4800

ON

Art.4833-1D

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Local Bell

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

VIDEOKIT VK4KC-2/6256, VK4KC-2S/6256

ON

17/11/2015

17/11/2015

1 1

vk4k62h-005.dwg

Marco Rongoni

23

66250457-EN - V 3.4 - 31/08/16

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
VIDEOKIT VK4K-1/6256, VK4K-1S/6256 WITH ADDITIONAL INTERCOM AND EXTENSION SOUNDER

LB
SB
LD
2A
3A
4A
5A

1
2
V1
V2

+V
_

Local Bell

1 2

ON

SW2

ON

SW1

1 2 3 4 5 6 7 8

4 6

GREEN

RED
VOL.REG.

BLACK

YELLOW

Art.6256
Address N. 1 Ext. 1

2 1 3 5 8 9

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Push to
Exit

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Art.4833-1

ON

1

1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

1

ON
1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

Door
Monitor

Title:

Data creazione:

Titolo:

Data modifica:

17/11/2015

Foglio

1/1

17/11/2015
Videx Electronics S.p.A.

Autore:

Notes:

Marco Rongoni

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-008.dwg

24
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VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
VIDEOKIT VK4K-1/6256, VK4K-1S/6256 WITH ADDITIONAL DOOR PANEL FOR 2 ENTRANCES SYSTEM

LB
SB
LD
2A
3A
4A
5A

1
2
V1
V2

+V
_

Local Bell

ON

SW1

1 2 3 4 5 6 7 8

SW2

1 2

ON

Art.6256
Address N. 1 Ext. 1
Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.
In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Art.4833-1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

ON

1

12 34

Door
Monitor

3
2
ON

2

1

NO2

Art.4833-1

4

NC2
CO2
NO1
NC1
C01

ON

1

1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

5

Art.506N

Door
Monitor

+

-

18Vdc

Push to
Exit

ART.
323/18

Push to
Exit

230V

Title:

Data creazione:

Titolo:

Data modifica:

17/11/2015

Foglio

1/1

17/11/2015
Videx Electronics S.p.A.

Autore:

Notes:

Marco Rongoni

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-009.dwg

25
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VK4K/6256 Series - Installation handbook

Art.4833-1D

Videx Electronics S.p.A.

Notes:

1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

1 Ext. 1

1 Ext. 2

Art.6256

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.6256
1 Ext. 3

Push
to
Exit

Art.4833-1
Art.4900

Art.6256

1

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

VIDEOKIT VK4KC-1/4900/6256 - VK4KC-1S/4900/6256 WITH 3 ADDITIONAL VIDEOPHONES

17/11/2015

Title:

Data creazione:

Titolo:

Data modifica:

Foglio

17/11/2015

Autore:

1/1

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-010.dwg

Marco Rongoni

26

66250457-EN - V 3.4 - 31/08/16

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams
VIDEOKIT VK4K-1/6256 - VK4K-1S/6256 WITH EXTERNAL CAMERA CONTROLLED BY SERVICE PUSH BUTTON

LB
SB
LD
2A
3A
4A
5A

1
2
V1
V2

+V
_

Local Bell

ON

SW1

1 2 3 4 5 6 7 8

SW2

1 2

ON

Art.6256
Address N. 1 Ext. 1
Power
Supply

Ext Camera
989

12Vdc

+

Relay
Art.506T
5

NO2

4

NC2

3

CO2

2

NO1

Coax to
Balanced
video
converter

NC1
1

C01

Affinche qualsiasi modifica alle impostazioni dei dip switch
del videocitofono o del posto esterno venga riconosciuta
dal sistema, è necessario togliere l'alimentazione di rete
all'impianto e restituirla.
In order to make the system recognize any modification of
the videophone's and outdoor station's dip-switch setting
temporarily disconnect the system from the mains and
reconnect

Push to
Exit

Art.4833-1

1

1

ON
1 2 3 4

ON
1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

Title:

Data creazione:

Titolo:

Data modifica:

17/11/2015

Foglio

1/1

17/11/2015
Videx Electronics S.p.A.

Autore:

Notes:

Marco Rongoni

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-011.dwg

27
VK4K/6256 Series - Installation handbook

66250457-EN - V 3.4 - 31/08/16

VK4K/6256 Series - Installation handbook

1 Ext. 2

1 Ext. 1

Local Bell

Art.4833-1D

1

Push
to
Exit

1

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

1

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.4833-1

Videx Electronics S.p.A.

Art.6256

Art.6256

Local Bell

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

VIDEOKIT VK4KC-1/6256 - VK4KC-1S/6256 WITH ADDITIONAL VIDEOPHONE

17/11/2015

Title:

Data creazione:

Titolo:

Data modifica:

Notes:

Foglio

18/11/2015

Autore:

1/1

Via del Lavoro 1, 63020 Monte Giberto (AP)
Phone: +39 0734 631669 - Fax +39 0734 631669 Note:

Cod.File:

www.videx.it - info@videx.it

vk4k62h-012.dwg

Marco Rongoni

28

66250457-EN - V 3.4 - 31/08/16

ON

1 2 3 4 5 6 7 8
1 2

SW1
SW2

1
2
V1
V2

+V
_

Art.6256
Address N. 2 Ext.1

LB
SB
LD
2A
3A
4A
5A

VK4K/6256 Series - Installation handbook
Local Bell

SW2

+V
_

1 2

SW1

Art.6256
Address N. 1 Ext.1

LB
SB
LD
2A
3A
4A
5A

1 2 3 4 5 6 7 8

1
2
V1
V2

ON

1

Push
to
Exit

1

2

1 2 3 4

ON

Using Electric Lock 12Vdc 0.3A Max
Con serratura elettrica 12Vdc 0.3A Max

1

1 2 3 4

ON

In order to make the system recognize any modification of the
videophone's and outdoor station's dip-switch setting temporarily
disconnect the system from the mains and reconnect

Affinche qualsiasi modifica alle impostazioni dei dip switch del
videocitofono o del posto esterno venga riconosciuta dal sistema,
è necessario togliere l'alimentazione di rete all'impianto e
restituirla.

Art.4833-1D

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

ON

Art.4833-1D

Local Bell

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

VIDEOKIT VK4K-2/6256 - VK4K-2S/6256 WITH ART. 316

ON

21/10/2015

17/11/2015

1 1

vk4k62h-001.dwg

Marco Rongoni

29

66250457-EN - V 3.4 - 31/08/16

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

5
4
3
2

Art.506N

1

2
1
GND
+20V

V2
V1

TWO ENTRANCES SYSTEM INSTALLATION

NO2
NC2
CO2
NO1
NC1
C01

-

+
18Vdc

ART.
323/18

Art.4833-1

ON

2

ON

1

1 2 34

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

1 2 3 4

+V
12Vout
1
2
V2
V1
BS
SL
PTE
C
NC
NO

Art.4833-1

230V

Push to exit

Push to exit

Title:

Data creazione:

Titolo:

Data modifica:

29/10/2015

Foglio

1/1

29/10/2015
Videx Electronics S.p.A.

Notes:

Autore:

Note:

Cod.File:

Marco Rongoni

Via del Lavoro 1, 63846 Monte Giberto (FM)
Phone: +39 0734 631669 - Fax +39 0734 631669

vk4k-1-001-2e.dwg

www.videx.it - info@videx.it

30
VK4K/6256 Series - Installation handbook

66250457-EN - V 3.4 - 31/08/16

VK4K/6256 Series “6 wire Bus” videokit

Installation diagrams

1 2 3 4

ON

C01

NC1

NC2

NO1

CO2

NO2

FOUR ENTRANCES SYSTEM INSTALLATION

4

1

2

3

4

5

Art.506N
Art.4833-1
1 2 3 4

ON

C01

NC1

NO1

NC2

NO2

CO2

3

1

2

3

4

5

230V

ART.
323/18

+

SW2

18Vdc

1 2

SW1

Art.6256
Address N. 1 Ext. 1

ON

1 2 3 4 5 6 7 8

Art.506N

ON

LB
SB
LD
2A
3A
4A
5A
1
2
V1
V2
+V
_

1 2 3 4

ON

C01

NC1

NC2

NO1

2

1

2

3

4

5

230V

ART.
323/18

+

-

Art.506N

18Vdc

CO2

NO2

Art.4833-1
1 2 3 4

1

230V

ART.
323/18

+

18Vdc

-

ON

Art.4833-1
Art.4833-1

25/11/2015

1 1

25/11/2015
Marco Rongoni
vk4k62h-013.dwg

31
VK4K/6256 Series - Installation handbook

66250457-EN - V 3.4 - 31/08/16

MANUFACTURER
VIDEX ELECTRONICS S.P.A.
Via del Lavoro, 1 - 63846 Monte Giberto (FM) Italy
Tel (+39) 0734 631669 - Fax (+39) 0734 632475
www.videx.it - info@videx.it

CUSTOMER SUPPORT
All Countries:
VIDEX ELECTRONICS S.P.A.
www.videx.it - technical@videx.it
Tel: +39 0734-631669 - Fax: +39 0734-632475
UK Customers:
VIDEX SECURITY LTD
www.videx-security.com
Tech Line: 0191 224 3174 - Fax: 0191 224 1559

Main UK office:
VIDEX SECURITY LTD
1 Osprey Trinity Park
Trinity Way
LONDON E4 8TD
Phone: (+44) 0870 300 1240
Fax: (+44) 020 8523 5825
www.videx-security.com
marketing@videx-security.com

Northern UK office:
VIDEX SECURITY LTD
Unit 4-7
Chillingham Industrial Estate
Chapman Street
NEWCASTLE UPON TYNE - NE6 2XX
Tech Line: (+44) 0191 224 3174
Phone: (+44) 0870 300 1240
Fax: (+44) 0191 224 1559

Greece office:
VIDEX HELLAS Electronics
48 Filolaou Str.
11633 ATHENS
Phone: (+30) 210 7521028
(+30) 210 7521998
Fax: (+30) 210 7560712
www.videx.gr
videx@videx.gr

Danish office:
VIDEX DANMARK
Hammershusgade 15
DK-2100 COPENHAGEN
Phone: (+45) 39 29 80 00
Fax: (+45) 39 27 77 75
www.videx.dk
videx@videx.dk

Benelux office:
NESTOR COMPANY NV
E3 laan, 93
B-9800 Deinze
Phone: (+32) 9 380 40 20
Fax: (+32) 9 380 40 25
www.videx.be
info@videx.be

Dutch office:
NESTOR COMPANY BV
Business Center Twente (BCT)
Grotestraat, 64
NL-7622 GM Borne
www.videxintercom.nl
info@videxintercom.nl

The product is CE marked demonstrating its conformity and is for distribution
within all member states of the EU with no restrictions. This product follows
the provisions of the European Directives 2014/30/EU (EMC); 2014/35/EU
(LVD); 2011/65/EU (RoHS): CE marking 93/68/EEC.



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