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- INSTRUCTIONS -

The KBW-M adaptor converts a standard CCTV camera's signal to a 2-wire signal, compatible with the 
KB 3x5 Color Video system. This allows the utilization of a color camera on a video input on the KB 
system, viewable from any monitor in the system. (A camera and KBW-M can be added to any input 
that is not used by a KB-DAR video door station.)   

Video Modulator for the KB Series Color Video System

KBW-M TERMINAL DEFINITIONS:

BNC Connector: Coax input from CCTV camera 

A1

2-Wire output to

A2

KB-3MRD 

MD

Input from motion detector

MD

(with normally open contacts)

CCTV Camera

75 Ohm, 1V Peak-to-peak

(Independently powered)

1A1
1A2

2A1
2A2

3A1
3A2

B1
B2

+

-

KB-3MRD

KB-DAR

A1
A2

A1
A2

BNC

Cnctr

MD
MD

KBW-M

PS-2420UL

+

-

Pg. 1

KB-DAR

A1
A2

NOTES:

1. In this system example, the CCTV camera 
is on input #3. Cameras are viewed by 
pressing the MONITOR button (on any 
monitor.) Press once to turn on camera 1 
(KB-DAR), press again to switch to camera 2 
(KB-DAR #2). Pressing MONITOR a third 
time will switch to Camera 3 (CCTV), and a 
fourth time turns the monitor off.

2. OPTIONAL: An input for a motion detector 
is provided to activate the CCTV camera.  
The Monitor will turn on and a  chime will be 
heard. The monitor will stay on for  
approximately 30 seconds. 

KBW-M

Motion Detector*

Non-Polarized

WIRING DIAGRAM: KBW-M Modulator for Standard CCTV camera 

(Optional)

Non-Polarized

Non-Polarized

Camera 

input

Output to 

KB-3MRD

Input from Motion 

Detector

* Or any signaling  

  device that provides a 

normally open

momentary dry closure. 

Motion Detectors with N/O Contacts:

Detection Systems DS720I
Pulnix 6612
Intellisense 8140S
Ademco 1998PI
Sentrol AP750 

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