32-Channel, Input (TTL/CMOS), Digital I/O Module for SCXI—The SCXI-1162 is an optically isolated digital input module for SCXI. It interfaces to field digital logic signals, such as TTL and CMOS, in which high-common-mode voltages can be present. The optical isolation of the SCXI-1162 eliminates ground-loop problems and isolates the host computer from damaging voltages. The module is programmed by the DAQ device serially over the SCXIbus. You can, therefore, easily integrate SCXI-1162 modules into existing SCXI systems without additional DAQ devices or cabling. The SCXI-1162 can also operate in parallel mode when cabled directly to a digital I/O device.