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Wiring.3 - Aiphone MJ-1AD Installation & Operation Manual

Door sentry video entry security intercom

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WIRING -
■ Cable requirements
* Use a parallel conductor cable. Coaxial cable should
not be used.
* When existing chime wires are used, it is possible that the
wires may contain high voltage current. Locate and remove
the bell transformer before actually connecting
MJ-DS.
Parallel cable
YES
Coaxial cable
<$)•
NO
* Extra pair(s) in the installed cable can affect image quality,
and must be terminated with a 120 ohm resistor at each
end on both MJ-DS and MJ-1 AD.
120 ohm
120 ohm
120 ohm
■ Installation location
MJ-DS
MJ-DS employs CCD
camera and the
performance can be
affected by bright
direct light, such as
strong sunlight, gate
light, or street or porch
light which comes
directly into the
camera lens.
MJ-1 AD
Mount the video-monitor so
that the center of monitor
screen comes to the eye
level of the user.
MJ-1 AD
When camera height is too low
MJ-DS is equipped with a camera-angle
adjuster on back of the unit. Pull down this
lever to adjust the camera angle up by 14°.
■ When installing a second MJ-1 AD
Extend 2 wires (and 2 for door strike) from
MJ-1 AD to 2nd monitor, which install within
150m, 500' max. allowed from MJ-DS.
Lever
MJ-DS
f
Puli down to
turn up the
camera.
YES
NO
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3
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