Isolated Addressable RS-422/485 to RS-232 Converter

Anewtech AD-ADAM-4521 Advantech ADAM I/O Module RS-232/422/485 Serial Converter


  • Automatic RS-485 data flow control
  • 1000 VDC isolation protection
  • Surge protection RS-485 data line
  • Transmission speed up to 115.2 Kbps
  • LED indicator to monitor status



Model ADAM-4521-AE
Isolation Voltage 1,000 VDC
Operating Temperature -10~70 °C (14~158 °F)
Connectors 1 x DB9 female connector, 1 x 10-pin plug-in screw terminal
Power Requirements
Input Voltage 10~30 VDC
Serial Communication
Baud Rate (bps) 300 bps~115.2 kbps
Converter/Repeater RS-422/485 to RS-232

AD-ADAM-4521 is an intelligent RS-422/485 to RS-232 converter specifically designed to connect RS-422/485 devices to an RS-232 network. RS-232 is the most common transmission standard. Although widely available on most computer systems, measurement equipment, PLCs, and industrial devices, its transmission speed, communication distance, and especially networking capability are limited due to unbalanced transmission.

AD-ADAM-4521 addressable converter solves this problem and lets you easily build up an RS-485 network with your RS-232 devices by assigning each one an address for easier communication.