Brocade Communications Systems 6710-54 Environmental considerations, Rack considerations

.	TABLE 1	System power specifications
	Specification		Value
	Maximum output (per power supply)		250 watts, 12 VDC
	AC input power draw		Idle: 106 W
			Maximum: 131 W
	AC input voltage		85-264 VAC, nominal 100-240 VAC
	AC input line frequency		47-63 Hz, nominal 50-60 Hz
	AC inrush current		Maximum of 50A @ 240 VAC for 10ms or less
	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 6710-54 switch can be ordered with fans that move air either 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 101.9 cubic meters/hour (60 cubic feet/minute) and a nominal flow of 74.8 cubic meters/hour (44 cubic feet/minute) of airflow is available to the air intake vents.

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

Rack considerations

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

•The rack must be a standard EIA cabinet.

•The rack space required is one rack unit (1U); 4.45 cm (1.75 in.) high and 48.3 cm (19 in.) wide.

•The equipment in the rack 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 multirack assembly.

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

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

Recommendations for cable management

The minimum radius to which a 50 micron cable can be bent under full tensile load is 5.1 cm (2 in.). For a cable under no tensile load, that minimum is 3.0 cm (1.2 in.).

Cables can be organized and managed in a variety of ways; for example, use cable channels on the sides of the cabinet or patch panels to reduce the potential for tangling the cables. The following list provides some recommendations for cable management:

4 of 12	Brocade VDX 6710-54 QuickStart Guide
	Publication Number: 53-1002338-02