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.
Further information on PoE can be found here: http://www.doorbird.com/de/poe
7
CONNECTING THE DEVICE
It is possible to connect the cables and wires to the device conveniently and safely via labelled connection ports.
You can connect all necessary cables and wires to the device now. Please remove any cables and wires from the
connection ports of the device that you do not need. Remove about 5 mm of insulation material at the end of
the wires that you would like to connect to the green screw connection terminal of the device.
Please take care when connecting the cables
NOT IC E
and wires. Connecting the cables and wires
the wrong way may damage the device.
Wires without insolation material must not
protrude out of the green screw connection
terminal, it may lead to electrical short and
damage the device.
DOORBIRD D21x
REL1
REL2
EXT
The yellow, green, and red cables that lead
NOTI CE
out from the side of the Main Electrical Unit
must only be used to connect components
certified by Bird Home Automation.
Handle the front panel with care. The surface
of the front panel could be scratched or
otherwise damaged if handled without care.
15VDC
Only related for devices
with call button(s)
Each Call Button is
equipped with one jack.
4 Pin
9