User's Guide

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Connecting the Reader
14.3.2 Digital Inputs and Outputs
In addition to the information provided in Connecting Digital Inputs and Outputs of the
RRU 4xxx, ARU 3xxx and ARU 8500 Readers Directly, p.51 and Connecting Digital Inputs and Outputs of the ARU
2400 Reader Directly, p.54 , this chapter describes the connection possibilities using the advanced connection box.
The activation and evaluation of the inputs and outputs is carried out using the
ReaderStart V3 software, with the DLL
supplied or by access to the reader protocol.
Fig. 32: Allocation of the GPIO interface cable
The digital inputs and outputs are provided via a 12-pin sockets in A-coding with M12 connection threads. The inputs
are electrically isolated from the power supply of the reader and can be operated irrespective of the polarity of the input
signal. For this reason, there is a common pin for the inputs (INP_CMN). The connection variants for the inputs are
shown below.
If the electrical isolation is not required, the power to the input can also be supplied by the reader via pin 6 and 7 (see
GPIO, p.30 ).
The outputs are also DC-isolated from the power supply of the reader and have a common pin (OUT_CMN). If the elec-
trical isolation is not required, the power supply can also be taken directly from the reader.
NOTICE
Risk of malfunction!
► Note that the load per channel is limited to a maximum of 0.5 A, and the total load across all the
channels must not exceed 1.5 A. If the auxiliary voltage of the GPIO port of the reader is used, the
load can be 1.1 A as a maximum. The inputs and outputs are designed for 30VDC max.
► For further information, see the reader data sheet.
► Bear in mind that LPS or NEC Class 2 classied power supplied units can be used for the operation
of the outputs.
ATTENTION
Risque de dysfonctionnement !
► Notez que la charge par canal est limitée à un maximum de 0,5 A et que la charge totale sur tous
les canaux ne doit pas dépasser 1,5 A. Si la tension auxiliaire du port GPIO du lecteur est utilisée, la
charge peut être de 1,1 A au maximum. Les entrées et sorties sont conçues pour 30 V DC max.
► Pour plus d'informations, voir la che technique du lecteur.
► Tenez compte du fait que les alimentations classées LPS (Limited Power Source, source d'alimenta-
tion limitée)) ou NEC classe 2 peuvent être utilisées pour le fonctionnement des sorties.