Aiphone KCW-D User Manual

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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-DAR

A1
A2

PS-2420UL

+

-

KC-1HRD

1A1
1A2

+

-

Center cond. to

DV+

Braid to DV-

KCW-D/A

DA1
DA2

b
E

DV+

DV-

+

-

Composite

video output

KCW-D/A TERMINAL DEFINITIONS:

DA1 2-Wire input from
DA2 KC or GF monitor
DV+ Coax output: Center cond.
DV- Coax output: Braided shield
b Pos. 10V Output for Relay (KC Only)
E Neg. 10V Output for Relay (KC Only)
+ Positive 24V DC

- Negative

Output Signal:
75 ohm, 1V peak-to-peak.
Coax: Solid copper core with copper braid.

KC Video Door Station with Standard Monitor

IMPORTANT:

KC-DAR

A1
A2

Auxiliary Light

To Aux Light Power Supply

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.

CN3 speaker microphone connector
inside KC-DAR must be unplugged to
prevent the possibility of feedback.

RY-PA

NOTE:

Relay will activate and
auxiliary light will illuminate
while the KC-DAR is active.

PS-2420UL

+

-

Switch

(not supplied by Aiphone)

KCW-D/A

(No audio communication or Tilt capabilities)

DA1
DA2

b
E

DV+

DV-

+

-

To standard monitor

or monitor input on a

video switcher.

Center conductor to

DV+

Braid to DV-

Solder jumper wire between

two holes in land pattern.

(JP101 A-to-A JP102 B-to-B

Component side view)

Standard CCTV

Monitor

Pg. 1

WIRING DIAGRAM: KCW-D/A for Composite Video Output when any GF monitor is active

Method 1: Connecting KCW-D/A to a specific monitor

GF-1MD/

GF-VBC/GF-4Z

B1
B2

GF-BC

R1
R2

GF-1MDK

B1
B2

R1
R2

Center cond. to

DV+

Braid to DV-

KCW-D/A

DA1
DA2

b
E

DV+

DV-

Composite

video output

KCW-D/A TERMINAL DEFINITIONS:

DA1 2-Wire input from
DA2 KC or GF monitor
DV+ Coax output: Center cond.
DV- Coax output: Braided shield
b Not functional in GF System
E Not functional in GF System
+ Positive 24V DC

- Negative

24V DC

+

-

+

-

Output Signal:
75 ohm, 1V peak-to-peak.
Coax: Solid copper core with copper braid.

Notes:

1.Since the video signal is common throughout the system, video will be present from the KCW-D/A when
any GF-1MD monitor is on.

2. Any 24V DC, 1A power supply can be used to power the KCW-D/A.

Method 2: Connecting KCW-D/A directly to GF-VBC

GF-VBC

GF-VA

A1
A2

PS-2410LC

+

-

A1 B1
A2 B2

In 2

A1 B1
A2 B2

A1 B1
A2 B2

In 4

A1 B1
A2 B2

In 5

A1 B1
A2 B2

Out 1In 1

Out 2

Out 3In 3

Out 4

Out 5

Out 6

B1
B2

+

-

Center cond. to

DV+

Braid to DV-

KCW-D/A

DV+

DV-

b
E

DA1
DA2

+

-

Composite

video output

KCW-D/A TERMINAL DEFINITIONS:

DA1 2-Wire input from
DA2 KC or GF monitor
DV+ Coax output: Center cond.
DV- Coax output: Braided shield
b Not functional in GF System
E Not functional in GF System
+ Positive 24V DC

- Negative

Output Signal:
75 ohm, 1V peak-to-peak.
Coax: Solid copper core with copper braid.

Notes:

1. Video will be present from the KCW-D/A when any entrance panel is on, broadcasting video through all
of the outputs of the GF-VBC. The KCW-D/A can be connected to any unused output.

2. KCW-D/A can be connected to any of the six outputs on the GF-VBC, including those being
connected to GF-4Z, GF-1MD or GF-1MDK.

3. The KCW-D/A can also be connected to a GF-4Z. Wire to an output as above, but make
sure additional wires are run to the KCW-D/A for power.

Pg. 2