Security-Center AZ5120 Instructions D'installation page 9

Overview of module components
Connecting the expansion module
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 connected in parallel at this BUS. The zone ranges are
differentiated 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.
alarm panel
BUS
1 Error LED (Fail)
2 OK LED (Pass)
3 Detector
4 Display
5 Select button
6 Delete button
7 Antenna
8 Tamper switch
9 Radio PCB
10 Learn sensor
11 Supervision jumper
12 Jamming jumper(radio interference)
13 Addressing jumper
14 BUS Connection
15 Cable Entry
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