National Instruments USB device 628x - Manual (Page 15)

© National Instruments Corporation 15 NI USB-622x/625x/628x OEM User Guide
Connecting the USB-622x/625x/628x OEM Device to
Your Chassis
The USB-622x/625x/628x OEM device includes several plated mounting
holes that are designed for customer grounded connections, as shown in
Figure 12.
Caution Do not use the holes labeled A in Figure 12 as mounting holes.
Figure 12. Customer Mounting Holes
(USB-6225/6229/6255/6259/6289 OEM Shown)
Caution (USB-628x Devices) Exercise caution when placing USB-628x OEM devices inside
an enclosure. Auxiliary cooling may be necessary to keep the device under the maximum
ambient temperature rating of 45 °C, as specified in the NI 628x Specifications.
Mounting Hole Connected
to Chassis Ground
A
A
A
Do Not Use These
as Mounting Holes A