ADAM-4050/4051/4052 – RS-485 Digital I/O Modules by Advantech

The Advantech ADAM-4050, ADAM-4051, and ADAM-4052 are versatile RS-485 digital I/O modules engineered for industrial automation, process control, and remote monitoring applications. These compact modules provide reliable digital input and output capabilities across distributed control systems using RS-485 communication. The ADAM-4050 is a 16-channel digital I/O module featuring 8 digital inputs and 8 open collector digital outputs rated for 30V and 30mA maximum load, supporting both ASCII command and Modbus/RTU protocols with typical power consumption of just 0.2W. The ADAM-4051 offers 16 isolated digital input channels with robust 2,500 VDC isolation voltage, 70 VDC overvoltage protection, and LED indicators for status monitoring, accepting wet contact inputs up to 50V and supporting both NPN and PNP type digital outputs. The ADAM-4052 provides 8 isolated digital input channels with superior 5,000 VRMS isolation, featuring 6 fully independent isolated channels and 2 isolated channels with common ground, ideal for applications requiring high noise immunity and electrical isolation. All three modules share common specifications including unregulated 10-30 VDC power input, operating temperature range of -10 to 70°C, 5 to 95% relative humidity tolerance, and a 1.6-second system watchdog timer for reliable operation. The plug-in terminal block connectors accommodate 14 to 22 AWG wire gauges for straightforward field installation. These modules are certified FCC and CE compliant, with the ADAM-4052 additionally holding UL certification. They are ideal for factory automation, building management systems, energy monitoring, and industrial process control where distributed I/O is required over RS-485 networks. Available from Recab, your Nordic partner for Advantech remote I/O solutions.