DoorBird A1121 Serie Manual De Instalación página 13

Please take care when connecting the cables and wires. Connecting the cables and wires the wrong way
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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.
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ASSEMBLE THE DEVICE TO THE MOUNTNG HOUSING (BACKBOX)
If you use the surface- or flush-mounted version, assemble the front panel with the attached Main Eletrical
Unit carefully using the orange (Torx+Pin) screw driver provided with the wall mounting-bracket / mounting
housing. Turn the safety screw clockwise until it is hand-tight.
Tighten the safety screw by hand only (less than 5 newton meter [Nm]), otherwise the Main Eletrical
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Unit housing may be damaged.
Flush-mounted model
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ACTIVATE THE DEVICE
If the device is to be supplied with power by a mains adapter, plug the power adapter of the device into a wall
socket. If the device is to be powered via PoE, switch on the PoE-Switch/ PoE-Injector which is connected to the
device. If the device is to be powered via DIN-rail power supply, switch on the DIN-rail power supply.
To check if the device is powered, place your finger on the fingerprint sensor and the integrated LED will light up
briefly. In addition, shortly after switching on, you will hear a short acknowledgement tone when the device is
ready. This may last for up to 5 minutes.
If the LED do not light up, please check the power supply. When using a wall-plug power supply and not PoE,
please check whether you have connected the positive pole and negative pole to the device correctly.
The device is ready for operation (booting up process, any software updates, etc.) once it has emitted a short
diagnosis sound (two beeps) from the integrated piezo speaker. This may last for up to 5 minutes.
Surface-mounted model
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