Installation manual Reader
20
Modifications, misprints and errors excepted.
English
4.
Connections and displays
Figure: General view of the RRU4
2 1
3 4
PIN
Allocation
1
+24 V DC
2
3
GND
4
Allocation of the power cable (Order-No.. 52010125 und 52010126)
Depending of the device variant, the reader has various connection options. The illustration below shows an RRU
and ARU standard reader with all its connection options. Details of the connections and the pin assignments of plugs
and sockets are provided in the following pages.
Sockets, from
left to right
Description
1
Communication connection: M12 (depending on the device variant)
2
Power supply connection: M12 male, 4-pin, A-coded
3
GPIO connection 1: M12 female, 8-pin, A-coded
4
GPIO connection 2: M12 female, 8-pin, A-coded
5
Antenna connection 1: R-TNC 50 Ohm
6
Antenna connection 2: R-TNC 50 Ohm
7
Antenna connection 3: R-TNC 50 Ohm
8
Antenna connection 4: R-TNC 50 Ohm
Status indicators: 3 coloured LEDs (red, green, orange)
4.1.
Power supply
The power supply is arranged as a four-pin round-pin plug with and M12 connection thread in A-coding.
Only power supply units with power limitation are approved for operation with the device. This means that the
secondary side of the power supply unit is limited to a power of maximum 100 W.
Note
