The RAD-80211-XD-BUS from Phoenix Contact is a wireless Ethernet radio with modular I/O and firmware capabilities. Features include the ability to interface up to 64 digital, analog, or pulse I/O directly to the radio; individual I/O module fault response modes; multiple wireless communications streams for simultaneous Ethernet, I/O control, and serial ASCII communications; and the ability to address I/O modules via Modbus TCP or legacy serial Modbus RTU over the 802.11 network. The radio includes the 2.4.1 firmware revision which adds enhanced serial ASCII com server functionality, expanded RS-232/485 data rates, and link monitoring diagnostics.