The GX5960 digital subsystem represents the highest level of performance available for PXI-based digital instrumentation and features high performance pin electronics and a timing generator / sequencer in a compact, 6U PXI form factor. The GX5960 series consists of the GX5961 clock generator board with 16 driver / sensor channels and the GX5964 driver / sensor board which supports 32 bi-directional I/O channels. Up to 528 digital I/O channels can be supported by the GX5960 digital subsystem. Each digital channel features a wide drive / sense voltage range of -14 V to +26 V (maximum swing of 24 volts) which can be individually programmed for a drive hi, drive lo, sense hi, sense lo, and a load value (with commutation voltage level) – offering the user complete flexibility when creating test programs and fixtures for multiple UUTs. In addition, each channel offers a parametric measurement unit (PMU) for DC measurements.