Typical Button Backlight Power Supply
Helios
features a high-quality white-LED name plate backlight. This backlight shows
low power requirements, long life and even illumination of all name plates. If a standard
12 V electric lock (see above) is connected to
Helios
, the backlight can be powered
using the lock power supply. Connect the power supply as shown in the figure. Just
make sure that the power supply (adapter transformer) is able to supply the required
current
constantly
and that it is cooled properly (do not wrap it in any thermally
insulating material, or use ill-ventilating covers, etc.!). The required current depends on
the count of buttons and other elements in the set and can be determined for 12
V according to the following formula:
Basic unit without keypad
80 mA
Basic unit with keypad
200 mA
1 one-side extender unit
80 mA
1 two-side extender unit
100 mA
Camera
130 mA
Reader
150 mA
Display
200 mA
The above mentioned currents are maximum values at 12V.
Cable Arrangement inside the Cover
We recommend you to use a UTP cable (8-wire, approx. 5.5 mm output diameter) for
Helios
connection. Push the cable into the groove on the left side of the cover. If you
combine this cable with another one (e.g. the electric lock 2-wire cable), insert the 2-
wire first and then the UTP cable to prevent the 2-wire cable from falling out. You can
also fit the cables with common clamp tape.
WARNING! An improper cable arrangement may cause a malfunction of the
product. Before closing the cover, check all wires and the cover for perfect
closing.
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