National Instruments PXI-1045 用户手册

This document explains the installation and maintenance of the 
NI PXI-1045 power supply shuttle. The NI PXI-1045 power supply shuttle 
is a replacement part for the PXI-1045 chassis.

To minimize downtime caused by a power supply failure, the PXI-1045 
chassis has a modular power supply shuttle. This power supply shuttle 
includes the chassis power supply, cooling fans, and fan-control circuitry. 
Key features of the power supply shuttle include:

•

Universal AC input with automatic voltage and frequency ranging

•

Over-current protection through push-reset circuit breaker

•

Remote voltage monitoring and inhibit through a rear-panel connector

•

Temperature-sensing module that can adjust fan speed based on 
air-intake temperature to minimize audible noise

•

Circuitry to control a front-panel LED that indicates power supply 
failure

Carefully inspect the shipping container and the power supply shuttle for 
damage. Check for visible damage to the metal work. Check to make sure 
all handles, hardware, and switches are undamaged. Visually inspect the 
inside of the shuttle for any possible damage, debris, or detached 
components. If damage appears to have been caused during shipment, file 
a claim with the carrier. Retain the packing material for possible inspection 
and/or reshipment.