Topic Tag

RS-485

Technical notes, layout decisions, and design reviews filed under RS-485.

Latest Note

October 20, 2026PCB RoutingIndustrial Interfaces

RS-485 PCB Design: Termination, Fail-Safe Biasing and Isolation

RS-485 PCB design guidance: 120 ohm termination, fail-safe biasing, the common-mode budget, galvanic isolation and the checks to run before release.

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Tell us the layer count, the interfaces, and where the board has to survive. We will come back with an architecture view, a timeline, and a clear budget.

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