Power Supply Options - DoorBird D21 Serie Manuel D'installation

5
ASSEMBLING THE MOUNTING HOUSING
Assemble the mounting housing (backbox) to the wall. You can find detailed drawings and measurements of the
device in the corresponding datasheet.
If you must drill holes in a wall, insert screws into a wall or lever up a wall, ensure that
no cables or mains (gas, water, etc.) are to be found in the wall.
Mounting the surface-mounted housing
Place the rubber seal for the cable entry on the
mounting opening.
6

POWER SUPPLY OPTIONS

The device can be powered using the DoorBird power-supply unit (mains adaptor) (Option 1) or via PoE
(Power over Ethernet) using a network cable (Option 2). The device can be alternatively also be supplied with
power using a DIN-rail power supply unit that you can obtain direclty from us.
The device does not use battery power.
OPTION 1
Power supply using the power supply unit
(mains adaptor)
The power supply unit (mains adaptor) has a 300 cm
long cable with two insulated wires.
Do not plug the power supply unit into the
N OTIC E
wall socket yet. Only use the original
DoorBird power supply unit or a DIN-rail
power supply unit that you can obtain from us
separately, since this has been specially
stabilized electrically and is equipped with
an integrated audio inter ference reduction
device. Other power supply units may
destroy the device or cause poor
transmission quality. The warranty expires
automatically if you use a different power
supply unit.
8
Rubber seal for cable
entry
Cover for unused
openings
Pierce through the
middle of the rubber
seal using a
screwdriver.
OPTION 2
Power supply and network connection
using PoE (Power over Ethernet)
To power the device via a PoE-Switch (e.g. D-Link
DGS-1008P) or PoE-Injector (e.g. DoorBird Gigabit PoE
Injector A1091) in accordance with the PoE standard
IEEE 802.3af Mode A, the four wires bearing the
numbers 1, 2, 3 and 6 of a Cat.5 cable or better are
to be used. A Cat.5 cable or better must be used
as network signals can only be transmitted over
completely insulated, shielded and twisted cables.
If you use PoE as a source of power the four wires for
PoE then simultaneously form the data link.
The device won't start if your PoE-Switch/PoE-Injector
does not support the PoE Standard IEEE 802.3af
Mode A (see Diagnostic-LED and Diagnostic-Sounds).
1. Disconnect the PoE-Switch or PoE-Injector
from the power grid.
2. Run the network cable to the installation
location of the device.
Feed all cables and wires
that you want to connect
to the device through
the rubber seal.