Brocade 300 Hardware Reference Manual - Manual (Page 17)

CAUTION
Ensure that the airflow direction of the power supply unit matches that of the installed fan
tray. The power supplies and fan trays are clearly labeled with either a green arrow with an
"E", or an orange arrow with an "I."
• A minimum of 30.6 cubic meters/hour (18 cubic ft/min) and a maximum of 39.1 cubic meters/hour (23
cubic ft/min) of air flow is available to the air intake vents on the non-port side of the switch.
CAUTION
Make sure the airflow around the front, sides, and back of the device is not restricted.
• Ensure that temperature requirements are met.
CAUTION
Do not install the device in an environment where the operating ambient temperature might
exceed 40°C (104°F).
EIA rack considerations
For successful installation and operation of the switch in a EIA rack, ensure the following requirements
are met:
• The rack must be a standard EIA rack.
• Plan a rack space that is 1 rack unit - 4.45 cm (1.75 inches) high, 48.3 cm (19 inches) wide.
• Ground all equipment in the rack through a reliable branch circuit connection and maintain ground at
all times. Do not rely on a secondary connection to a branch circuit, such as a power strip.
• Ensure that airflow and temperature requirements are met on an ongoing basis, particularly if the
switch is installed in a closed or multi-rack assembly.
• Verify that the additional weight of the switch does not exceed the rack’s weight limits or unbalance
the rack in any way.
• DANGER
Make sure the rack housing the device is adequately secured to prevent it from becoming
unstable or falling over.
Recommendations for cable management
The minimum bend radius for a 50 micron cable is 5.08 cm (2 inches) under full tensile load and 3.05
cm (1.2 inches) with no tensile load.
Cables can be organized and managed in a variety of ways: for example, using cable channels on the
sides of the rack or patch panels to minimize cable management. Following is a list of
recommendations:
NOTE
You should not use tie wraps with optical cables because they are easy to over tighten.
CAUTION
Before plugging a cable into to any port, be sure to discharge the voltage stored on the cable by
touching the electrical contacts to ground surface.
EIA rack considerations
Brocade 300 Hardware Reference Manual 17
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