Power Supply Requirements - Alphatech IP Bell Quick Setup Manual


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
.