3.3.3 General Placement and Spacing Recommendations
3.3.3 General Placement and Spacing Recommendations
The following are recommendations for placing equipment at a site:
• Place each rack on a firm, level, and stable surface and bolt the racks together.
• Use correct mounting hardware and shims to prevent rack movement.
• Use strain relief when installing and positioning cables and cords to help ensure that no interruption
of service occurs.
• Provide an appropriate amount of space around all components to allow for proper air flow, cooling, and
safe access to equipment.
• Locate the site racks and other equipment with enough spacing to allow access for service.
Proper spacing of equipment is essential for ease of maintenance, and safety of personnel. Spacing
requirements have been established to meet the National Fire Protection Associations (NFPA)
Code, and the American Society of Heating, Refrigerating, and Air Conditioning Engineers
(ASHRAE) standards. Also adhere to any local regulations that apply to the installation.
• Locate the system in an area that is free of dust, smoke, and electrostatic discharge (ESD).
• See the Motorola
Standards and Guidelines for Communication Sites
manual for details on these space
requirements.
3.3.4 General Cabinet Bracing Recommendations
Use all supplied bracing hardware when installing a rack or cabinet and secure all equipment within a rack or cabinet.
If additional equipment needs to be installed, refer to the system design document provided by the field engineer or
consult the Motorola Field Representative.
Subsystem cabinets are self-supporting structures. In areas subject to seismic activity, additional bracing of the
cabinet may be required to prevent it from tipping. However, the bracing hardware must be locally procured. There
are no specific procedures within this manual for bracing cabinets in active seismic areas.
3.3.5 General Floor Mounting Procedure for Cabinets or
Racks
When and where to use:
Perform the following steps to properly install a cabinet or open rack within a site building. Cabinets and racks must
be secured to the floor for optimum stability. This procedure is written so that the cabinet or rack is moved only once.
6871022P86-A - November 2012
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