The 232DRIO from Advantech is a compact RS-232 Digital Relay I/O module, ideal for simple control and monitoring tasks via serial communication. Here's what it brings to the table:

Core Features

• Interface: RS-232 serial port
• Inputs/Outputs:
  • 1 optically isolated digital input
  • 2 relay outputs (SPDT – Single Pole Double Throw)
• Isolation: 2500 V between input and output channels
• Indicators: LEDs for input and relay status
• Wiring: Screw terminals for easy field connections

Use Case

• Designed for general-purpose control applications
• Can sense ON/OFF conditions and control devices like alarms, lights, or motors
• Includes demo programs in QuickBASIC and C/C++ for rapid integration