Advantech ADAM-4521 Addressable RS-422/485 to RS-232 Converter

Advantech ADAM-4521 Addressable RS-422/485 to RS-232 Converter


  • Automatic RS-485 data flow control
  • 1000 VDC isolation protection
  • Surge protection RS-485 data line
  • Transmission speed up to 115.2 Kbps
  • Networking up to 1200 meters (4000 feet)
  • Power and data flow indicator 
  • Power input range 10 to 30 VDC
  • Watchdog timer
  • Software configurable to either addressable or non-addressable mode


Advantech’s 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. The ADAM-4521 addressable converter lets you easily build up an RS-485 network with your RS-232 devices by assigning each one an address for easier communication.


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  • Mounting: Panel
  • Power: 10-30VDC
  • Temperature: -10 to 70C
  • Temperature (Operating): -10~70 °C (14~158 °F)
  • Humidity: 5~95 %RH
  • Isolation: 1kV
  • Temperature (Storage): -25~85 °C (-13~185 °F)
  • Interface: RS-232 to RS-422/485
  • Isolation Protection: 1,000 VDC
  • Communication Speed: Serial: From 300 to 115.2 k
  • Data Flow Control: Yes
  • Connector: RS-232: female DB9 / RS-422/485: plug-in screw terminal
  • Power Requirement: 10~30 VDC