The RAD-80211-XD-BUS, a wireless Ethernet radio with modular I/O and firmware capabilities, promises truly secure communication with control of up to eight I/O modules. The component can interface up to 64 digital, analog, and pulse I/Os. The I/O modules can be addressed via Modbus TCP or legacy serial Modbus RTU over the 802.11 network, providing a standard solution for facilities undergoing incremental upgrades. Multiple communication streams allow simultaneous Ethernet, I/O control, and serial ASCII device communications from a single radio without external gateways or additional serial wireless converters. Other features include individual I/O module fault response modes, Class I, Div. 2 approval, and 802.11i/WPA2 security with AES and 802.1x. PHOENIX CONTACT INC., Middletown, PA. (800) 322-3225.