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Wiring Schematic Diagram

Wire type and length

Wiring run

Wire type

*4

Diameter

Length (Max.) 

Doorphone – 
Main monitor – 
Extension monitor

*5

φ

 0.65 mm

22 AWG

100 m

φ

 1.0 mm

18 AWG

130 m

φ

 0.5 mm

CAT 5

50 m

Main monitor – Electric lock

*6

φ

 0.5 mm - 

φ

 1.2 mm

(24 AWG - 17 AWG)

According to the specification

of connected device.

Main monitor – Connection device

for option input (A contact)

*6

φ

 0.5 mm - 

φ

 1.2 mm

(24 AWG - 17 AWG)

According to the specification

of connected device.

Main monitor – PBX

φ

 0.65 mm

CAT 3 or 22 AWG

100 m

*1 When you use an additional doorphone, the maximum number of the electric locks that can be connected to the 

doorphone depends on the type of doorphone. Consult your dealer for further information. 
For VL-V554 users: 
- Make sure to only connect electric door locks to the S1/S2 terminals of the doorphones.

*2 Connection devices for option input (A contact) can be used when a VL-V900 and VL-V700 series Video Intercom System 

for Apartment Complexes is used.

- Make sure to connect emergency terminals to the IN1/IN2 terminals.
- Make sure to connect doorbells to the IN3/IN4 terminals. A doorbell and doorphone 2 cannot be used together.

*3 Connectable PBX Model Numbers: KX-TDA30/100/100D/200/600 series, KX-TDE100/200/600 series, KX-NS300/500/700/1000 series  

Please consult your dealer when connecting with a PBX.

*4 Type: Single-pair cable with outer sheath (jacket)  

Conductor: Copper solid

• A certified power supply wiring has to be used with this equipment. The relevant national installation and/or 

equipment regulations shall be considered. A certified power supply wiring not lighter than ordinary polyvinyl 
chloride flexible wiring according to IEC 60227 shall be used.

*5 When an extension monitor is used, make sure that the total wiring length from the doorphone to the main 

monitor and then to the extension monitor, is within about 100 m.

*6 When using an electric lock or a connection device for option input (A contact), select a device that meets the 

following guidelines:

• Electric lock connection terminal (S1/S2, S3/S4): 

- N/O dry closure contact
- 30 V AC (1 A)/24 V DC (1 A) or lower

• Connection device for option input (A contact) terminal (IN1/IN2/IN3/IN4): 

- Input method: No-voltage contact
- Open-circuit voltage between terminals: DC 7 V or less
- Detection definite time: 0.1 seconds or more
- Short-circuit between terminals: 5 mA or less
- Resistance value: make: 500 Ω or less, break: 15 KΩ or more

D1

D2

D3

D4

Ml-1

Ml-2

MO-1

MO-2

MO-3

MO-4

MO-5

MO-6

IN1

IN2

IN3

IN4

P1

P2

1

2

3

4

19

20

21

22

5

6

7

8

9

10

11

12

13

14

15

16

17

18

S1

S2

S3

S4

Ml-1

Ml-2

5

6

Ml-1

Ml-2

5

6

Ml-1

Ml-2

5

6

MAIN MONITOR

EXTENSION

MONITOR 1

EXTENSION

MONITOR 2

EXTENSION

MONITOR 3

Power plug

(220-240 V AC)

Connection device for

option input
(A contact)

*2

DOORPHONE 1

*1

DOORPHONE 2

*1

(Optional lobby station or Video 

Intercom System for Apartment 

Complexes can be connected.)

Terminal box

(4-conductor wiring)

PBX

*3

NP: Non-polarised

Electric lock

Power

supply

Power

supply

Electric lock

NP

NP

NP

NP

NP
NP
NP
NP
NP
NP

Video Intercom System

Key Features

• Highly Expandable: 

Up to 3 7-inch wide monitors can be connected to the main monitor. In addition, PBX connectivity is also supported.

• 7-inch Screen: 

The main monitor and extension monitor have a 7-inch wide screen that offers easy viewing of wide vertical and horizontal views.

• Voice Change Function: 

This function makes woman’s voice (higher keys) sounds like a man’s (lower keys).

• Electric Lock Release Support for Gate:  

The gate or door lock can be easily and quickly released using monitors.

• Picture Recording Function: 

The main monitor and extension monitor can record doorphone images from up to 50 doorphone calls or monitoring sessions. (up to 8 still images per visitor/

session)

• Night Vision with LED lights (illumination lamp): 

 

Door station is equipped with LED lights (illumination lamp). It enables the colour display of visitors at a distance of about 50 cm at night.

 

Optional Accessories

Lobby Station

Up to 20 main 

monitors can 

be connected.

Door Station (Doorphone)

VL-V522L 

(Surface mount)

Door Station (Doorphone)

CMOS 0.3 M pixels

VL-V555

 (Surface mount)

CMOS 1.0 M pixels

VL-V554

 (Surface mount)

VL-V554U

 (Flash mount)

Extension Monitor

VL-MV71

VL-SV71

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