Bidirectional RS-485 Fan-Out Hub Reference Design
TIDA-01365
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Key Document
- RS-485 Bidirectional Fan-Out Hub With Automatic Direction Control Ref Design
(PDF 1535 KB)
06 Feb 2017
Description
The Bidirectional RS-485 Fan-Out Hub Reference Design (TIDA-01365) documents and tests an RS-485 fan-out hub design where 1:N and N:1 RS-485 signals are aggregated in and out of any bus topology. This design also features automatic direction control, for reduced pin count on microcontrollers, and a DC-to-DC converter using the 24V DC rail typically seen in industrial applications.
Features
- Allows for bidirectional communication over complex network topologies
- One master node / Four slave nodes
- Direction of data automatically controlled (no MCU needed)
- Supports cable lengths > 1000 m
See the Important Notice and Disclaimer covering reference designs and other TI resources.