Providing Adequate Space for the Rack

Provide enough space in front of and behind the switch so that you can service it easily.

In some switches, airflow moves from side to side. For these switches, it is best to leave at least 3 inches (8 cm) of clear space in front of the air intake and outflow vents on both sides of the switch.

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:

• 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 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.