1. Parts and Functions

2. Unit Mounting

DBC4A

POWER IN-USE

BUS A

Output Output

B C D

OFF

Impedanceswitch

ON

DBC4A

DIN Rail Mounting

-1-

CDV-DBC4A USER MANUAL V1.0 20140702

IN-USE: Status indicator, illuminates when signal is present.POWER: Operating indicator,illuminates when power is on. Impedance Switch: Video match switch,the last DBC4A at the end of the bus should set ON to match the video impedance,the power indicator will turn to orange after setting. Bus: Input port, bus connection port.A,B,C,D: Output port, connect to indoor monitors or door stations. The maximum distance from a DBC4A output ports to either a monitor or door panel is 40m using the specified cable.

3. System Wiring with DBC4A

Mulit Door Station Wiring:

85~260VAC

DPS PS5

monitors

12

ON

L1 L2 PL S1+ S2+ S-

12

ON

L1 L2 PL S1+ S2+ S-

12

ON

L1 L2 PL S1+ S2+ S-

12

ON

L1 L2 PL S1+ S2+ S-

1 2

ON

1 2

ON

1 2

ON

1 2

ON

1# CameraID=00ID=10ID=01ID=11

2# Camera3# Camera4# Camera

DBC4A

A B C D

OFF

ON

Impedance switch

-2-

Note: The above diagram shows CDV-91 door panels as an example.

IMPORTANT: THE MAXIMUM DISTANCE BETWEEN A CDV-DBC4A AND A MONITOR IS 40M

Mulit Monitors Wiring:

OFF ON

OFF ON

monitor

monitor

monitor

monitormonitor

monitor

monitor

monitor

85~260AC

DPS PS5

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

Code=15, DIP-6=on

Code=13, DIP-6=on

Code=3, DIP-6=on

Code=1, DIP-6=on

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

1 2 3 4 5 6

ON

Code=14, DIP-6=on

Code=12, DIP-6=on

Code=2, DIP-6=on

Code=0, DIP-6=on

ID=00

1 2

ON

DBC4

A

A B

C D

DBC4

A

A B

C D

Impedance switch

Impedance switch

-3-

5. Specification

Power Supply : DC20~30V

Working Temperature: -100C~+400C;

Wiring: 2 wires (non-polarity);

Dimension: 89(H)×71(W)×45(D)mm

The design and specifications can be changed without notice to the user. Right to interpret and copyright of this manual are preserved.

DT-ENG-DBC4A-V1 20140702