Acromag”s EtherStax line of rugged, high-density Ethernet I/O blocks are designed for distributed I/O and SCADA applications with new channel-isolated discrete I/O. Channel-to-channel isolation adds further protection from transients and noise. ES2116, ES2117, and ES2118 models process 32 discrete inputs and 16 outputs with a Modbus TCP/UDP/IP interface to a host controller. Acromag’s i2o technology enables peer-to-peer communication between I/O units. Dual-network ports support 10/100Base-TX copper and 100Base-FX fiber-optic connections with a redundant communication path for critical applications. Dual DC power terminals enable use of redundant power sources. An embedded Web page provides configuration menus accessible with any Web browser to eliminate programming. The compact, stackable aluminum enclosure resists shock and vibration making it ideal for mounting directly on machinery. Multiple units can stack in an eight-inch by seven-inch footprint. An open board version is available for custom mounting. EtherStax are suitable for use in Class I, Division 2, Group A, B, C, and D locations.