Abus AZ4120 Instructions D'installation page 11

5. Installation
1. Open the housing of the radio expansion.
2. Release the 3 screws and remove the PCB from the
rear wall of the unit.
3. Use the rear of the radio expansion unit to draw the
boreholes at the required assembly location. Bore the
appropriate holes and insert the correct dowel pins into
then.
4. Insert the cable of the 4-wire BUS through the opening
on the rear of the module.
5. Screw the rear of the housing with the correct screws
onto the required assembly location and re-insert the
PCB.
6. Make sure that the alarm centre is disconnected from
the mains. Connect the 4-wire BUS correctly.
7. Once more close the 8-zone expansion module.
6. Wiring
The 4 wires from the communication bus of the central station
are connected at the data BUS as described in the installation
instructions of the alarm panel. Additional modules are con-
nected in parallel at this BUS. The zone ranges are differentiat-
ed by the addressing of the modules. Please note that during
the connection work, the alarm panel must be disconnected
from the mains. Use the opening on the base of the module to
lay the cable.
7. Programming
To put the expansion module into learn mode, the 12V DC sup-
ply must be connected (from the BUS or a separate supply). As
soon as all detectors have been programmed into the module
(„taught") they are stored permanently, even if there is a power
failure or the power is removed.
As soon as the power supply is connected, the first message
„88" appears in the display.
alarm panel
BUS
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