TIDA-060008
将 RS-232 信令转换为 RS-485 信令的参考设计
TIDA-060008
概述
This reference design provides a circuit of converting RS-232 signaling to RS-485 signaling. This allows for long-distance communication, since the range supported by RS-232 is normally less than 50 feet while the range for RS-485's can exceed 1000 feet. The design implements bidirectional half-duplex communication without any software interference.
特性
- Convert RS-232 to RS-485 signaling for bidirectional half-duplex communication without any software interference with hot plug-in feature
- Low voltage design. The design works with both 3.3-V and 5-V supply
- Industrial-level ESD protection
- RS-232 port: IEC 61000-4-2, ±8 kV contact, ±15 kV air
- RS-485 port: IEC 61000-4-2, ±30 kV contact, ±30 kV air; EFT, IEC 61000-4-4, 50 A; Surge, IEC 61000-4-5, 19 A
- Isolation: 5000 Vrms isolation protection
- Extend system topology from point-to-point to multi-drop
- Cable length up to 1000 ft
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| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 设计指南 | 将 RS-232 信号传输方式转换为 RS-485 信号传输方式的参考设计 | 英语版 | 2018年 9月 18日 |