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- INSTRUCTIONS -

The MYW-MD/B adaptor converts the video from a 2-wire signal to a standard coaxial video signal
(Demodulator mode). It can also be used to convert a standard CCTV camera's signal to a 2-wire signal
(Modulator mode). 

The MYW-MD/B is compatible with Aiphone's MK and MY series video monitors.

MYW-MD/B

Video Modulator/Demodulator for MK and MY Series Video Systems

MYW-MD/B TERMINAL DEFINITIONS:

MODULATOR:
MA1

2-Wire output to

MA2

MY monitor/adaptor

MV+

Coax input: center cond.

MV-

Coax input: Braided shield

+

Positive 18V DC

-

Negative

Input signal requirements:
75 ohm, 1V peak-to-peak.
Coax: Solid copper core with copper braid.

DEMODULATOR:
DA1

2-Wire input from

DA2

MK or MY monitor/adaptor

DV+

Coax output: center cond.

DV-

Coax output: Braided shield

+

Positive 18V DC

-

Negative

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

Special
Order
Products

MODULATOR

MYW-MD/B to integrate a Standard CCTV camera with an Aiphone Monitor

*MYW-MD/B Can also be used with:
 MK-1MD/A
 MY-1CD
 MY-CU
 MYW-P1L
 MYW-P3L

Center  cond. to MV+

Braid to MV-

CCTV Camera

75 Ohm, 1V Peak-to-peak

(Independently powered)

1A1
1A2

2A1
2A2

B1
B2

+

-

MY-2CD*

MK-DBC

A1
A2

MA1
MA2

MV+

MV-

+

-

MYW-MD/B

PS-18C

+

-

Polarized

JUMPER CLIP:
Set in Modulator (top) position from factory. Ensure
that jumper clip is between the top two pins.

Pg. 1

DEVIATION CONTROL:
To increase contrast, turn clockwise
with a small screwdriver. Only applicable when
MYW-MD/B is used in Modulator mode. (See pg 4)

JUMPER CLIP AND DEVIATION CONTROL:

Located under rubber cover in upper right corner of  the faceplate of the MYW-MD/B.

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