4 Connecting the controller
© 2021 Interflex Datensysteme GmbH IF-4070 Controller 12
Bus data cables with readers
You can connect up to 8 readers to each bus interface. A maximum of 16 readers can be
connected to the controller.
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Always connect a reader with address 1 to bus 1.
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Evenly distribute the readers among the three bus interfaces. The factory setting for the
interfaces is as follows:
– Bus 1: 6 readers max.
– Bus 2: 4 readers max.
– Bus 3: 6 readers max.
Make sure that each reader has a unique hardware address within the bus.
Data cables with readers can be connected in two ways.
Connections on the printed circuit board [}8]:
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On the front panel using RJ45 connectors
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Internally to screw terminal 600
Bus data cables with RJ45 connectors
For trouble-free operation, please observe the following:
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Ground the line shields of the data cables via the female RJ45 connector.
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Only use shielded cables and shielded connection components, such as male Hirose connectors.
Bus data cable to screw terminal 600
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Use shield terminals for grounding the cable shields.
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Secure the cable with a strain relief.
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