DoorBird D20 Serie Manual De Instalación página 11

When choosing the assembly location, consider the lighting conditions. Avoid
direct sunlight, direct backlight and reflective surfaces.
Do not expose the device to direct sunlight. The housing temperature
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can exceed the maximum allowed temperature limit. This can result
in damage of electric and mechanic components of the device and
injuries especially when touching exterior parts of the device. White
and bright silver-colored front plates absorb less sunlight than dark
ones.
An image sensor must not be exposed to direct sunlight for an
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extended period of time. Direct sunlight will "blind" the camera
and may permanently bleach the small color filters on the image
sensor chip.
Any defects caused by direct sunlight is not covered by warranty.
STEP 4: POWER SUPPLY
The video door station can be powered by two simple doorbell wires using
the power-supply unit (mains adaptor) supplied with it or via PoE (Power
over Ethernet) using a network cable. The video door station can alternatively
also be supplied with a DIN-rail power supply unit that you can obtain from
us directly.
The video door station does not use battery power. The use of a mains power
supply permits the transmission and display of on-demand live video at any
time and not only if a visitor has pressed the doorbell.
Power supply using the power-supply unit (mains adaptor)
Two insulated wires are required to power the video door station by plugging
it into the mains. These wires are normally already there and are freely
accessible once you have removed the previous doorbell. Only use the power
supply unit provided along with the video door station, or a DIN-rail power
supply unit that you can obtain from us separately, since this has been spe-
cially stabilized electrically and is equipped with an integrated audio interfe-
rence reduction device. Other power supply units may destroy the video door
station or cause poor transmission quality. The warranty automatically expi-
res if you use a different power supply unit. The power supply unit is plugged
into a wall socket inside your house, usually where the two wires from your
previous doorbell come out of the wall in the interior of the house.
Do not plug the power supply unit into the wall socket yet. Connect the po-
wer supply unit inside the house with the crimp connector provided and the
two wires that you would like to use to power the device.
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