V2EX rs-232

RS-232

定义 Definition

RS-232 是一种早期且广泛使用的串行通信接口标准(常用于电脑与调制解调器、工业设备、仪器仪表之间),规定了信号电压、电气特性与常见连接方式(如 DB-9、DB-25)。它常被称为“串口通信”的典型代表之一(现代也常被 USB 转串口替代)。

发音 Pronunciation

/r s tu θrti tu/

例句 Examples

The old router is configured through an RS-232 console port.
这台旧路由器通过 RS-232 控制台串口进行配置。

Although the microcontroller uses TTL-level UART, we added a level shifter so it can talk to legacy RS-232 equipment over a long cable.
尽管微控制器使用的是 TTL 电平的 UART,我们仍加了电平转换器,以便它能通过较长的电缆与老式 RS-232 设备通信。

词源 Etymology

RS 来自 Recommended Standard(“推荐标准”),232 是该标准的编号。它由美国电子工业协会(EIA,后相关机构演进为 EIA/TIA)制定与推广,因此在技术资料中也常见写作 EIA-232TIA/EIA-232

相关词 Related Words

文学与著作中的用例 Literary Works

  • Serial Port Complete(Jan Axelson)多处以 RS-232 作为串口通信的经典案例与兼容性讨论对象。
  • Designing Embedded Hardware(John Catsoulis)在嵌入式硬件接口章节中提到 RS-232 与电平转换、接口选型。
  • The Art of Electronics(Horowitz & Hill)在电子接口与信号章节中涉及串行通信与 RS-232 的工程背景与应用场景。
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