2N Access Unit QR, Руководство пользователя, Страница: 96 / 128

See the side view in the drawing above for the right/wrong connection of the bases. Pay particular attention
to the base connection detail. You may have a situation especially when the instructions are neglected and
the screws are tightened first.
Electric Installation
Power Supply
2N Access Unit QR can be fed either directly from the LAN if equipped with PoE 802.3af supporting network
elements or from an external 12 V ±10 % / 3 A DC power supply.
CAUTION
The device must be part of the electrical system of the building.
PoE Supply
2N Access Unit QR is compatible with the PoE 802.3af technology (Class 0–12.95 W) and can be supplied
directly from the LAN via compatible network elements. If your LAN does not support this technology, insert
a PoE injector, Part No.
91378100 , between 2N Access Unit QR and the nearest network element. This
power supply provides 2N Access Unit QR with 12 W for its own feeding and for connected modules.
External Power Supply
Use a SELV supply 12 V ±10 % dimensioned to the current consumption required for feeding the device to
make your device work reliably.
Installation
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