RS-232

RS-232 cables are serial communication cables used with the RS-232 standard, mainly for connecting computers, industrial equipment, and older peripherals.

Key points:

  • Single-ended signaling (one wire + ground) → more sensitive to noise than RS-485.
  • Short distance use: typically up to 15 m at standard speeds.
  • Commonly uses DB9 or DB25 connectors.
  • Transmits point-to-point (one device to one device), unlike RS-485 which supports multiple devices.
  • Often used for configuration, control, or legacy equipment.

In short: RS-232 cables are serial cables for short, direct device-to-device communication.

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