ProCurve 5406zl, Руководство по установке и началу работы, Страница: 17 / 52

2-3
Installing and Connecting the External Power Supply Shelf
Installation Procedures
In
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Installation Precautions:
Follow these precautions when installing your Power Supply Shelf:
W A R N I N G S
■ The rack or cabinet should be adequately secured to prevent it
from becoming unstable and/or falling over.
Devices installed in a rack or cabinet should be mounted as low as
possible, with the heaviest devices at the bottom and progressively
lighter devices installed above.
■
Ensure a cover plate is installed on any empty switch power supply
slot. A cover plate is required for safe operations, and to ensure
proper switch cooling.
C a u t i o n s
■ Make sure the power source circuits are properly grounded, then use the
power cord supplied with the unit to connect it to the power source.
■ If your installation requires a different power cord than the one supplied
with the unit, be sure to use a power cord displaying the mark of the safety
agency that defines the regulations for power cords in your country. The
mark is your assurance the power cord can be used safely with the unit.
■ When installing the unit, note that the AC outlet should be near the unit
and should be easily accessible in case the unit must be powered off.
■ Ensure the unit does not overload the power circuits, wiring, and over-
current protection. To determine the possibility of overloading the supply
circuits, add together the ampere ratings of all devices installed on the
same circuit as the unit and compare the total with the rating limit for the
circuit. The maximum ampere ratings are usually printed on devices near
the AC power connectors.
■ Do not install the unit in an environment where the operating ambient
temperature might exceed 55°C (131°F).
■ Make sure the air flow around the front, sides and back of the unit is not
restricted. If this unit is placed in a fully enclosed rack, make certain the
ambient temperature inside the rack near the unit does not exceed 55°C
(131°F).
■ For safe operation and to prevent equipment damage, DO NOT connect
EPS, or power cables to non-supported equipment or in non-supported
configurations.