Alphatech IP Bell Manuel d'installation rapide - Page 4
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In order for backlight, heating of the circuit board (to avoid condensation) and to power a
lock, a 12VDC 1A power supply is required. Refer to manual.
There are two options to control external devices e.g. Lock, Light, Bell. Either NO (Normally
Open) or NC (Normally Closed). Refer to the figure below.
A
T
LPHATECH
ECHNOLOGIES
Jeremenkova 88, Praha 4, Czech Republic
www.alphatechtechnologies.cz
s.r.o
.