Digital Ground

Connect the digital ground pin to your digital device's ground. To minimize noise, do not connect analog ground and digital ground together. Connect unused digital inputs to digital ground.

Typical Connections

Figure 2.2 shows the typical connections of the 485SDA10 for the digital I/O lines.

Figure 2.2 - Typical Digital I/O Connections

485SDA103798 Manual

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B&B Electronics RS-485 manual Digital Ground, Typical Digital I/O Connections

RS-485 specifications

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