Special
Order
Products
KCW-D/A
Video Demodulator for the KC & GF Series Video Systems
- INSTRUCTIONS -
The KCW-D/A adaptor converts the 2-wire video signal from the KC and GF systems to a standard
composite video output signal. This allows the image from the door station to be seen on a standard CCTV
monitor or TV (video input). The video image can also be recorded if connected into a VCR or time lapse
recorder.
WIRING DIAGRAM: KCW-D/A for Composite Video Output from a KC monitor
KC-1GRD/
KC-1HRD
KC-DAR
KCW-D/A
1A1
1A2
DA1
DA2
Composite
video output
A1
A2
KCW-D/A TERMINAL DEFINITIONS:
DA1
DA2
DV+
DV-
b
E
+
-
2-Wire input from
KC or GF monitor
b
E
Coax output: Center cond.
Coax output: Braided shield
Pos. 10V Output for Relay (KC Only)
Neg. 10V Output for Relay (KC Only)
Positive 24V DC
Center cond. to
DV+
Braid to DV-
DV+
DV-
PS-2420UL
Negative
+
-
+
-
+
-
Output Signal:
75 ohm, 1V peak-to-peak.
Coax: Solid copper core with copper braid.
KC Video Door Station with Standard Monitor (No audio communication or Tilt capabilities)
IMPORTANT:
CN3 speaker microphone connector
KC-DAR
inside KC-DAR must be unplugged to
KCW-D/A
prevent the possibility of feedback.
A1
A2
DA1
DA2
Standard CCTV
Monitor
b
E
RY-PA
NOTE:
Auxiliary Light
To standard monitor
or monitor input on a
video switcher.
Relay will activate and
DV+
DV-
Center conductor to
DV+
auxiliary light will illuminate
while the KC-DAR is active.
Braid to DV-
To Aux Light Power Supply
Switch
(not supplied by Aiphone)
PS-2420UL
Solder jumper wire between
two holes in land pattern.
(JP101 A-to-A JP102 B-to-B
Component side view)
+
-
+
-
TO POWER THE CAMERA:
(1) WHEN IN USE
- Install a switch or relay contact in series with the "+" terminal from the power supply (see diagram).
- Solder a jumper between points labeled AA & BB on the KCW-D/A main PC board (see illustration).
This allows the camera to be activated manually, or when relay contact is activated.
(2) CONTINUALLY
- Solder a jumper between points labeled AA & BB on the KCW-D/A main PC board (see illustration).
This will provide continuous power to the camera, which may cause the camera to be warm.
Note: Continually powered, the overall life of the camera will be reduced and condensation may occur.
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Video Output Control:
Using a small screwdriver, adjust the Video Output Control to obtain the correct level for the CCTV device
you are using. The Video Output Control is located under the rubber cover on the upper right hand corner of
the KCW-D/A faceplate.
Video Output Control
Lo
Hi
OPERATIONS
Using the KCW-D/A for VIDEO OUTPUT with the KC and GF systems:
1. When a call is initiated from the door station (KC) or entry panel (GF), the monitor called will ring and the picture
will activate. At that time, the video signal out of the KCW-D/A adaptor will be present, and the picture can be
seen on the CCTV monitor(s).
2. The video output can be connected to any receiving device that accepts a composite video signal (75 ohm, 1V
peak-to-peak). This could be a standard CCTV monitor, multiplexer, or an adaptor that modulates the video onto
a cable TV channel. To take the video signal directly into a TV, use a spare video input or go through the proper
modulator.
NOTES:
KC System Only: When the MONITOR button on any Monitor is pressed, the video will turn on for approximately 30
seconds, and video signal will be sent to the monitor via the KCW-D/A.
GF System Only: Video is present at the KCW-D/A regardless of which monitor has been called.
Using the Demodulator to integrate a KC-DAR video door station with a standard CCTV monitor:
(No audio communication or Tilt is possible with this application.)
1. To view the camera location at any time, the camera must be powered at all times, or a switch must be installed
to turn it on. To do this, the PC board must be modified by adding a jumper wire in the location indicated on the
wiring diagram on page 1. Soldering is required. This modification should be done by qualified technicians only.
2. There is no Tilt control of the KC-DAR camera in this application.
3. There is no audio communication with the KC-DAR in this application.
4. If the camera is powered continually, there will always be a video output from the KCW-D/A.This application will
shorten the life of the camera.
SPECIFICATIONS:
Power:
Current consumption:
Wire:
24V DC. Use Aiphone model PS-2420UL or PS-2410LC.
500mA
18AWG, 2-conductor non-shielded
Use Aiphone wire #841802 or 871802
ALL DISTANCES ARE WITH 18 AWG WIRE.
Max. 30' from monitor when used for video output.
Max. 330' from KC door station when used with a standard monitor.
Max. 16' to KCW-D/A
Wiring distance:
Demodulator:
Power supply:
Dimensions:
5-1/2"H x 3"W x 1-1/2"D
COAXIAL CABLE:
DC resistance:
75 ohms, solid copper center conductor, copper braid, 95% coverage.
Max. 15W per 1000 feet
Note:
Only information pertaining to the connection and operation of the KCW-D/A and connection of a standard video monitor is included
here. For complete installation, wiring, and operational information, please refer to the appropriate Installation Manual.
Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
(425) 455-0510
Toll Free Technical Support:
1-800-692-0200
FAX: 1-800-832-3765
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KCW-D/A Instr.
1103bkjs
E-mail [email protected]
FAX (425) 455-0071
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