Allen-Bradley 6181 Notice D'installation page 5

Mounting Clearances
Allow adequate space for mounting, air flow, and maintenance. The figure
below shows recommended minimum clearances to other components
within the rack or enclosure.
ATTENTION: The 6181 Computer should not be
operated within a confined space of the dimensions
shown below unless adequate ventilation or other cooling
methods are used to lower the air temperature within the
enclosure.
All manuals and user guides at all-guides.com
6181 Industrial Computer
Publication 6181-IN002C-MU-P
5