This device can monitor digital on/off status, actuate relay outputs, and transmit or receive 4–20 mA signals over distances up to 20 miles. The I/O signals can be mirrored at other stations in the wireless network or mapped to Modbus RTU for integration into a Modbus host system.
Source URL: Phoenix Contact introduces RAD-900-DAIO6 900 MHz spread-spectrum transceiver
Source Website: Factory Automation – Automation.com