SMARTSLICE SmartSlice GRT1 remote I/O terminals include ac input modules with 110 Vac or 240 Vac inputs on four inputs per module. GRT1-IA4-1 and GRT1-IA4-2 have individual two-wire inputs with isolation to 600 V, and isolation between input and the I/O bus to 2,500 Vac. Building-block style I/O terminals can connect 64 remote I/O units. Network interfaces are available for CompoNet, DeviceNet, Profibus-DP and Mechatrolink-II.