Aiphone MYW-MD/B User Manual

Video Modulator/Demodulator for MK and MY Series Video Systems
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.
Modulator
MYW-MD/B to integrate a Standard CCTV camera with an Aiphone Monitor
MK-DBC
A1
A2
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)

JUMPER CLIP AND DEVIATION CONTROL:

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

Set in Modulator (top) position from factory. Ensure
that jumper clip is between the top two pins.
MYW-MD/B

- INSTRUCTIONS -

MYW-MD/B
MA1
MA2
MV+
Center cond. to MV+
MV-
Braid to MV-
+
-

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.
MY-2CD*
1A1
1A2
2A1
Polarized
2A2
B1
B2
PS-18C
+
+
-
-
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
*MYW-MD/B Can also be used with:
MK-1MD/A
MY-1CD
MY-CU
MYW-P1L
MYW-P3L
Pg. 1