Installation Guide

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:
• X440-G2-24t-10GE4-DC and X440-G2-48t-10GE4-DC
• X450a-24tDC, X450a-24xDC, and X450a-48tDC
• X460, X480, and X650 series switches with installed DC power supplies
For these switches and the EPS-150DC power supply, turn o power to the chassis by de-
energizing the circuit that feeds the power supply. This is usually accomplished by turning o
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 195: 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.
Extreme Networks recommends using the Building Industry Consulting Service International (BICSI)
Registered Communications Distribution Designer (RCDD), which is globally recognized as a standard in
site planning and cabling.
For information, visit www.bicsi.org.
Site Preparation
Securing the Rack
Summit Family Hardware Installation Guide 227