HP P4459A Installation & Operation Manual page 21

Rack Installation Basics
Caution: Do the following to prevent the rack enclosure from tipping
over. Failure to take these precautions could result in serious injury and
equipment damage.
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Always keep the following safety and environmental issues in mind:
• Maximum Recommended Ambient Temperature: The maximum
recommended ambient temperature of the room is 35°C (95°F).
• Elevated Operating Ambient Temperature: The ambient operating
temperature within a closed or multi-unit rack assembly may exceed the
room's ambient temperature. Make sure that the temperature within the rack
itself does not exceed 35°C (95°F).
• Air Flow: As you mount equipment in the rack, make sure that you allow
enough air flow for safe operation of the equipment.
• Mechanical Loading: Uneven mechanical loading within the rack can
cause hazardous conditions. Plan the placement of equipment in the rack to
avoid this problem.
• Circuit Overloading: Make sure that the total configuration of equipment
in the rack does not overload the supply circuit. To verify this, check the
nameplate ratings on all equipment. Consider the effect of circuit
overloading on over-current protection and supply wiring.
• Reliable Earthing (Grounding): Maintain reliable earthing (grounding) of
rack-mounted equipment. Give particular attention to supply connections
that are not direct connections to the branch circuit (the use of power strips,
for example).
• Installation Order: Begin installing components at the bottom of the rack.
Rack Installation Overview
The instructions in this guide are specifically for Hewlett-Packard rack enclosure
product numbers J1464A, J1466A, J1487B, J1488A, J1500A, J1501A, and
J1502A. For information about other rack installations, see the rack-mount kit
Extend the anti-tip foot, or verify that the anti-tip feature is installed.
Verify that the leveler feet are lowered.
Do NOT extend more than one piece of equipment at a time out from
the front of the rack.
Installing the Fibre Loop Switch
13