To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 104°F (40°C).
Statement 1047
Warning
The distance between the center lines of the mounting holes on the two mounting posts must be 18.31 in. ±
0.06 in. (46.50 cm ± 0.15 cm). The rack-mounting hardware included with the chassis is suitable for most
19-in. (48.3-cm) equipment racks.
Consider installing the controller in a rack with the following features:
• EIA or ETSI hole patterns in the mounting rails. Required mounting hardware is shipped with the
controller. If the rack that you plan to install the system in has metric-threaded rails, you must provide
your own metric-mounting hardware.
• Perforated top and open bottom for ventilation to prevent overheating.
• Leveling feet for stability.
The controller must not be installed in an enclosed rack because the chassis requires an unobstructed flow of
cooling air to maintain acceptable operating temperatures for its internal components. Installing the controller
in any type of enclosed rack—even with the front and back doors removed—could disrupt the air flow, trap
heat next to the chassis, and cause an over temperature condition inside the controller. If you use an enclosed
rack, make certain that there are air vents on all sides of the rack and there is proper ventilation.
Note
Guidelines for 23-in. (Telco) Racks
If needed, you can also install the Cisco Catalyst CW9800H1 and CW9800H2 Wireless Controllerss in 23-in.
(Telco) racks. For information on the adapters needed for 23 in. racks, contact the Newton Instrument Company:
http://www.enewton.com
111 East A Street, Butner NC, USA, 27509
919 575-6426
Equipment Rack Guidelines
The placement of racks can affect personnel safety, system maintenance, and the system’s ability to operate
within the environmental characteristics described in Table: Cisco Catalyst CW9800H1 Wireless Controller
and Cisco Catalyst CW9800H2 Wireless Controller Environmental Tolerance. Choose a proper location
for the controller by following the guidelines below.
Locating for Safety
If the Cisco Catalyst CW9800H1 Wireless Controller or the Cisco Catalyst CW9800H2 Wireless Controller
is the heaviest or the only piece of equipment in the rack, consider installing it at or near the bottom to ensure
that the rack’s center of gravity is as low as possible.
Cisco Catalyst CW9800H1 and CW9800H2 Wireless Controllers Hardware Installation Guide
41
Preparing Your Site for Installation
Guidelines for 23-in. (Telco) Racks
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