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Aiphone MYW-MD Instructions
Aiphone MYW-MD Instructions

Aiphone MYW-MD Instructions

Video modulator/demodulator for my series video systems

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Video Modulator/Demodulator for MY series Video Systems
The MYW-MD 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,
compatible with Aiphone's MY series video monitors (Modulator mode).
MODULATOR
MYW-MD to integrate a Standard CCTV camera with an Aiphone Monitor
MY-DC
A1
A2
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)
JUMPER CLIP: (Located under rubber cover in upper right corner of the faceplate of the MYW-MD)
Set in Modulator (top) position from factory.
Ensure that jumper clip is
between the top two pins.
MYW-MD
- INSTRUCTIONS -
MYW-MD
MA1
MA2
MV+
Center cond. to MV+
MV-
Braid to MV-
+
-
MYW-MD 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
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 Can also be used with:
MY-1CD
MY-CU
MYW-P1L
MYW-P3L (input only)
Pg. 1

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Summary of Contents for Aiphone MYW-MD

  • Page 1 Video Modulator/Demodulator for MY series Video Systems The MYW-MD 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, compatible with Aiphone's MY series video monitors (Modulator mode).
  • Page 2 Center cond. to MV+ Braid to MV- JUMPER CLIP: (Located under rubber cover in upper right corner of the faceplate of the MYW-MD) Set in Modulator (top) position from factory. Ensure that jumper clip is between the top two pins.
  • Page 3 This allows the camera to be activated manually, or when the relay contact is activated from a separate source. (2) CONTINUALLY - Solder a jumper between points labeled AA on the the MYW-MD main PC board. (see Illustration) This will provide continuous power to the camera, which may cause the camera to be warm.
  • Page 4 Modulator Deviation Control: Contrast control located underneath the cover in the upper right corner of the unit. This applies only when the MYW-MD is used with a CCTV camera. To adjust the picture for more contrast, turn the variable resistor clockwise with a small screwdriver.