Aiphone MYW-MD/B Instruction Manual
Special
Order
Products
MYW-MD/B
Video Modulator/Demodulator for MK and MY Series Video Systems
- 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).
MODULATOR
MYW-MD/B to integrate a Standard CCTV camera with an Aiphone Monitor
The MYW-MD/B is compatible with Aiphone's MK and MY series video monitors.
MK-DBC
A1
A2
MY-2CD*
1A1
1A2
MYW-MD/B
MA1
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)
Center cond. to MV+
Braid to MV-
MA2
MV+
MV-
+
-
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.
Polarized
PS-1820UL
+
-
2A1
2A2
*MYW-MD/B Can also be used with:
MK-1MD/A
MY-1CD
MY-CU
MYW-P1L
MYW-P3L
B1
B2
+
-
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.
Pg. 1
MODULATOR
Master Sentry Intercom and Video System with Standard CCTV Cameras
MK-DBC
A1
A2
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)
Center cond. to MV+
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)
Center cond. to MV+
Braid to MV-
Braid to MV-
MYW-MD/B
MA1
MA2
MV+
MV-
+
-
MYW-MD/B
MA1
MA2
MV+
MV-
Polarized
LE-DA*
1
E
-
* Any LE or LS series
door station may be used.
Polarized
MYW-P3L
1A1
1A2
2A1
2A2
DA
DB
E
R
12+
12-
EL2
KA
KB
18+
18-
3A1
3A2
B1
B2
U1
U2
LEF-10C*
10
9
E
R
12+
12-
L
K10
K9
* Any 5 or 10 call LEF
series master can be
used.
Separate video cable from
intercom cable
MYH-CUB*
A1
A2
U1
U2
+
-
JUMPER CLIP & DEVIATION CONTROL:
under rubber cover in upper right corner of the faceplate of the
MYW-MD/B.
To control contrast, adjust
with a small screwdriver.
Ensure that jumper clip is
between the top two pins.
System Configurations:
1 Aiphone video door station and 2 CCTV cameras
or
2 Aiphone video door stations and 1 CCTV camera
Optional:
Part #261380 - Video Output connector for MYW-P3L.
(Provides a 1V peak-to-peak video signal output when
the Aiphone monitor is on.)
Located
PS-1820UL
18+
18-
NOTES:
1. In the above system example, the CCTV
cameras are addressed by pressing the
MONITOR button on the MYH-CUB. Press once
to turn on camera 1 (MK-DBC), press again to
switch to camera 2 (CCTV #1). Pressing
MONITOR a third time will switch to Camera 3
(CCTV #2), and a fourth time turns the monitor
off.
2. The LE-DA will become active by selecting
station #9 on the LEF-10C. Selecting this station
will also activate CCTV camera #2. The camera
will not activate when the LE-DA calls in.
ONLY WIRING CONCERNING THIS APPLICATION
IS SHOWN HERE. SEE PRODUCT INSTRUCTIONS
FOR COMPLETE WIRING INFORMATION.
+
-
* Use MYH-CU for surface
mount applications.
+
-
Pg. 2
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