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Securing the Rack
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 outflow.
Warning
The DC-powered switches include the following models:
For these switches and the EPS-150DC power supply, turn off power to the chassis by de-
energizing the circuit that feeds the power supply. This is usually accomplished by turning off
a circuit breaker. Disconnecting the DC power cable from the DC power source must be done
by a qualified, licensed electrician.
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.
Securing the Rack
The rack should be attached to the wiring closet floor with 9.5 mm (3/8 in) lag screws or equivalent
hardware. The floor under the rack should be level within 5 mm (3/16 in). Use a floor-leveling cement
compound if necessary or bolt the racks to the floor as shown.
Figure 8: Properly Secured Rack
Brace open equipment racks if the channel thickness is less than 6.4 mm (1/4 in).
Evaluating and Meeting Cable Requirements
Use professional consultants for site planning and cabling.
26
ExtremeSwitching SLX 9150 Hardware Installation Guide
Preparing for the Installation
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