Brocade Communications Systems 6720 Environmental considerations, Cabinet considerations

.	TABLE 1	Power Supply Specifications
	Specification		Value
	Maximum output		250 watts, 4 amps, 12 VDC - VDX 6720-24
			500 watts, 7 amps, 12 VDC - VDX 6720-60
	Maximum AC power consumption		146.2 W - VDX 6720-24
			360 W - VDX 6720-60
	System DC power consumption (excluding power supply		Idle: 182.4 W
	and fan FRUs)		Maximum: 306 W
	Input system power (including power supply and fan		Idle: 206 W
	FRUs)		Maximum: 306 W
	Input voltage		85-264 VAC
	Input line frequency		47-63 Hz
	BTU rating		1044.11 BTU/hr
	Inrush current		Maximum of 50A
	Input line protection		AC lines are fused

Environmental considerations

For successful installation and operation of the switch, ensure that the following environmental requirements are met:

•Because the Brocade VDX 6720 can be ordered with fans that either move air front to back or back to front, be sure to orient your switch with the airflow pattern of any other devices in the rack.

•All equipment in the rack should force air in the same direction to avoid intake of exhaust air.

•A maximum of 102 cubic meters/hour (60 cubic feet/minute) and a minimum of 74.8 cubic meters/hour (44 cubic feet/minute) of air flow is available to the air intake vents.

•The ambient air temperature does not exceed 40° C (104° F) while the switch is operating.

Cabinet considerations

For successful installation and operation of the switch in a cabinet, ensure the following cabinet requirements are met:

•The cabinet must be a standard EIA cabinet.

•A cabinet space that is one rack unit (1U for VDX6720-24) or two rack units (2U for VDX6720-60) high depending on the platform ordered; 4.45 cm (1.75 inches) or 8.90 cm (3.50 inches) high and 48.3 cm (19 inches) wide.

•The equipment in the cabinet is grounded through a reliable branch circuit connection and maintains ground at all times. Do not rely on a secondary connection to a branch circuit, such as a power strip.

•Airflow and temperature requirements are met on an ongoing basis, particularly if the switch is installed in a closed or multi-cabinet assembly.

•The additional weight of the switch does not exceed the cabinet’s weight limits or unbalance the cabinet in any way.

•The cabinet is secured to ensure stability in case of unexpected movement, such as an earthquake.

4 of 12	Brocade VDX 6720 QuickStart Guide
	Publication Number: 53-1002085-02