Figure 10: KNX/IP Interface Router
3. For a single KNX line, wire from the red and black terminals on the gateway to the devices. For
multiple KNX lines, wire from the red and black terminals on each gateway to the devices on
the same KNX line.
Note: Specific cabling can vary depending on the topology and site. See Wiring rules for
networks and field buses.
4. Wire each KNX gateway to its own dedicated power supply on the KNX line.
Wiring input and output terminals
NCE25 Series models support up to 33 hard-wired I/O points including:
• 7 BO points
• 4 CO points
• 4 AO points
• 8 BI points
• 10 UI points
See Figure 11, Figure 12, and Table 12 for more information.
I/O points are compatible with multiple types of input and output and most of the points are
configured in the CCT software.
NCE25 Installation Instructions18
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