It is usually a 16-channel 0-20mA differential input interface module. Some documents also indicate that it is a signal conditioning module capable of performing processing such as amplification, attenuation, filtering, and isolation on analog signals.

It supports an input voltage of 24VDC and an output voltage of 0~10VDC, with a maximum power consumption of 8.5W. It is equipped with 16MB SDRAM and 32MB Flash memory. The dimensions are approximately 100mm × 50mm × 30mm, and the weight is about 0.2kg. It has an IP67 protection rating, operating temperature range of -40℃ to 85℃, and humidity range of 5% to 95% non-condensing. It adopts the Modbus TCP/IP communication protocol.

It features a modular design, facilitating installation and maintenance, and can seamlessly integrate with the Foxboro I/A Series system with strong compatibility. Multiple functions can be realized through software configuration, such as adjustable gain range and settable filtering frequency. Parameters like electrical isolation voltage can also be determined according to requirements.

It is mainly used in I/A Series control systems to process analog signals from on-site instruments, making them meet the requirements of the control system. It can convert analog signals to digital signals or digital signals to analog signals, and also provide electrical isolation to protect the control system from on-site interference and expand the signal processing capability of the control system.

It is widely used in process industries and infrastructure fields such as petrochemical, electric power, metallurgy, food and beverage, and water treatment. It can be used in scenarios such as monitoring and regulating parameters like temperature, pressure, and flow, as well as data acquisition and transmission.