Allow a minimum of 48 inches (122 cm) in front of the rack and 30 inches (76 cm)
behind the rack. When using a relay (two-post) rack, provide a minimum of 24 inches
(61 cm) of space behind the mounted equipment. Extra room on each side is optional.
Warning
Extreme Networks switches do not have a switch for turning power to the
unit on and off. For systems using an AC power supply, power to the switch is
disconnected by removing the wall plug from the electrical outlet.
Be sure that cables and other equipment do not block the switch's air intake or outow.
Depending on other conditions in the equipment room, it may be possible to install
the switches closer to each other; consult your Extreme Networks Customer Support
representative for guidance.
Secure the Rack
The rack should be attached to the wiring closet oor with 9.5 mm (3/8 in) lag screws or
equivalent hardware. The oor under the rack should be level within 5 mm (3/16 in). Use
a oor-leveling cement compound if necessary or bolt the racks to the oor as shown.
Figure 29: Properly Secured Rack
Brace open equipment racks if the channel thickness is less than 6.4 mm (1/4 in).
Evaluate and Meet Cable Requirements
Use professional consultants for site planning and cabling.
The Building Industry Consulting Service International (BICSI) Registered
Communications Distribution Designer (RCDD), which is globally recognized as a
standard in site planning and cabling, can be used.
For information, visit www.bicsi.org.
Site Preparation Secure the Rack
ExtremeSwitching 5420 Series Hardware Installation Guide 45
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