Dell Brocade 6520 Brocade 6520 Hardware Referencce Manual - Page 20

2 Installation and safety considerations Environmental considerations For successful installation and operation of the switch, ensure that the following environmental requirements are met: • At a minimum, adequate cooling requires that you install the switch with the intake side, as indicated by the airflow direction of the fan assemblies, facing the cool-air aisle. The chassisshow output indicates "Reverse" for non-port side intake and "Forward" for port side intake. • All equipment in the rack should force air in the same direction to avoid intake of exhaust air. • Airflow requirements outlined in Table 5 must be met. Note that the requirements differ based on the direction of the airflow. • The ambient air temperature does not exceed 40°C (104°F) while the switch is operating. Table 5 lists the acceptable environmental ranges for both operating and nonoperating (such as during transportation or storage) conditions. TABLE 5 Environmental requirements Condition Acceptable during operation Acceptable during non-operation Ambient temperature Humidity Altitude Shock Vibration Air flow Heat dissipation 0º to 40ºC (32º to 104ºF) 10% to 85% RH non-condensing, at 40ºC (104ºF) 0 to 3 km (9,842 feet) above sea level 20 G, 6 ms, half-sine wave 0.5 G sine, 0.4 gms random, 5-500 Hz Port side exhaust Maximum - 176.7 cmh (104 cfm) Nominal - 52.7 cmh (31 cfm) Port side intake Maximum - 185.2 cmh (109 cfm) Nominal - 56.1 cmh (33 cfm) 1378.5 BTU/hr (no optics configuration) 1706.1 BTU/hr (fully populated port configuration) -25º to 70ºC (-13º to 158ºF) 10% to 90% RH non-condensing, at 70ºC (158ºF) 0 to 12 km (39,370 feet) above sea level 33 G, 11 ms, half-sine wave, 3/eg Axis 2.0 G sine, 1.1 gms random, 5-500 Hz N/A N/A 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 rack. • A rack space that is two rack units (2U) high; 8.90 cm (3.50 inches) high and 48.3 cm (19 inches) wide. • There are three rack kit options that accommodate the Brocade 6520, a four-post fixed rack kit, a two-post Telco rack kit, and a four-post sliding rail rack kit. See their respective installation manuals for details. 8 Brocade 6520 Hardware Reference Manual 53-1002705-01