N 11™ i n, Wiring diagrams, Installation (continued) – Aiphone MYH-2CD User Manual
Page 4
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Mounting locations & height
Do not install master & sub stations with
monitor in a place strongly sunlit.
3
INSTALLATION (continued)
Mount the station so that the video monitor
comes at the user’s eye level.
System selector "SW1' setting
MY-2CD, MYH-2CD BOTTOM VIEW
RESET SW1
CONTRAST BRIGHT
TONE
1 A B ^
M*L
n 11™ I n
Call extension
Power supply
(3-level) (3-level) (3-tevel)
"RESET" switch setting
On MY-2CD master station, do not change A setting. Only on 2nd (middle)
sub station of 3-station system, either MYH-2CD or MY-1HD, set to B position
(for impedance-matching).
Note: When MY-2CD is used for Aiphone VY-EM Condo. System, change
setting to B position on MY-2CD.
After completing all the wiring and turning on the power supply, operate as
follows;
The system will automatically initialize when powered on.
To re-initialize when powered on, press RESET switch on one room station (any).
The call-in LED lights, then goes off in 15 to 30 seconds (approx.) and the system
becomes operable. The RESET switch operation becomes necessary when power
supply is turned off and on (after power failure, etc.).
One IER-2 call extension speaker can be added to sound a chime tone in a
remote location. Connect wires from S-r, - terminals on MY-2CD.
Use specified power supply to ensure proper system operation.
If communication has noise interference, connect GND of power supply to ground.
4
WIRING DIAGRAMS ----------
1. Two PanTilt video door stations
MK-DBC
IER-2
AC trans.
-4-