National Instruments NI PXIe-1075 - Manual (Page 22)

Chapter 2 Installation and Configuration
NI PXIe-1075 User Manual 2-2 ni.com
• Part Replacement—Only service this equipment with parts that are
exact replacements, both electrically and mechanically. Contact
National Instruments for replacement part information. Installation of
parts with those that are not direct replacements may cause harm to
personnel operating the chassis. Furthermore, damage or fire may
occur if replacement parts are unsuitable.
• Modification—Do not modify any part of the chassis from its original
condition. Unsuitable modifications may result in safety hazards.
Chassis Cooling Considerations
The NI PXIe-1075 chassis is designed to operate on a bench or in an
instrument rack. Regardless of the configuration you must provide the
cooling clearances as outlined in the following sections.
Providing Adequate Clearance
The primary cooling exhaust vent for the NI PXIe-1075 is on the top of the
chassis. The primary intake vent is on the rear of the chassis where the air
is filtered as it enters the power supply shuttle. The secondary intake and
exhaust vents are located along the sides of the chassis. Adequate clearance
between the chassis and surrounding equipment or blockages must be
maintained to ensure proper cooling of the chassis power supply as well
as the modules plugged into the chassis. These clearances are outlined in
Figure 2-1. The vent locations for the NI PXIe-1075 chassis are shown
in Figure 2-2. Failure to provide these clearances may result in
thermal-related failures in the chassis or modules.