National Instruments 778693-01 12-Slot PXI Chassis

The part number 778693-01 from National Instruments is the identifying part number for the PXI-1052 12-Slot PXI Chassis. Featuring a 4-slot PXI subsystem combined with an 8-slot SCXI subsystem, offering a complete solution for signal conditioning and switching applications. Complying with the PXI Hardware Specification, the 778693-01 12-slot PXI Chassis features advanced timing and synchronization features. The 8 SCXI slots provide analog and digital signal conditioning, isolation, and other functions. 

The 778693-01 chassis features an integrated digital and analog bus connecting the PXI and SCXI subsystems, facilitating seamless communication and control between them. This setup allows a Data Acquisition (DAQ) or Digital Multimeter (DMM) module installed in the fourth PXI slot to directly manage the SCXI subsystem without the need for additional cables. The SCXI subsystem offers a low-noise environment optimized for signal conditioning instrumentation, enhancing measurement accuracy. Additionally, it provides necessary power and control circuitry for SCXI modules, simplifying system setup and operation while ensuring reliable performance in data acquisition and measurement applications.

The 778693-01 supports an Input voltage of between 100 to 240 Volts AC and requires 90 to 264 Volts AC to operate. The operating frequency of this chassis is 47 to 63 Hz and can support an input signal with a frequency of 50/60 Hz. The input current rating of the chassis is 6 to 3 Amperes and features a 10 Amperes circuit breaker for over-current protection. The chassis has an efficiency rating of 70% minimum.

The chassis should be operated in an environment with an ambient temperature between 0 to 55 °C with an operative relative humidity of 10 to 90%, noncondensing. The chassis has dimensions of 177 mm × 438.2 mm × 452.9 mm (6.97 in.) × 17.25 in. × 17.83 in.) and weighs approximately 10 kg (22.0 lbs). The Chassis is made using Sheet aluminum, extruded aluminum, cold-rolled steel, PC/ABS, Santoprene, and nylon material. The chassis enclosure has a conductive clear Iridite on aluminum, clear chromate zinc on cold-rolled steel, electroplated nickel on cold-rolled steel, and an epoxy/polyester powder coat finish helping it prevent corrosion and keep the design robust.