Installation Precautions - HP 2920 Installation And Getting Started Manual

Installing the Switch
Installation Procedures
W A R N I N G
C a u t i o n
2-4

Installation Precautions:

Follow these precautions when installing the HP 2920 switches.
■ 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.
■ Neither the Right or Left sides of the switch can be placed down-
ward. (That is, the right or left side of the unit while facing the
front.)
■ If the switch is to be shipped in a rack, it can be mounted and shipped in
many four post racks using HP X410 E-Series 1U Universal Rack Mounting
Kit (J9583A).
Ensure the power source circuits are properly grounded, then use the
■
power cord supplied with the switch to connect it to the power source.
■ If your installation requires a different power cord than the one supplied
with the switch and power supply, be sure the cord is adequately sized for
the switch's current requirements. In addition, 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 that the power
cord can be used safely with the switch and power supply.
■ When installing the switch, the AC outlet should be near the switch and
should be easily accessible in case the switch must be powered off.
Ensure the switch 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 switch and compare the total with the rating limit for
the circuit. The maximum ampere ratings are usually printed on the
devices near the AC power connectors.
For safe operation, proper switch cooling, and reduction of electromag-
■
netic emissions, ensure that a slot cover is installed on any unused module
or power supply slot.
■ Do not install the switch in an environment where the operating ambient
temperature might exceed 55°C (131°F). If you are installing any trans-
ceivers the operating ambient temperature should not exceed 45°C
(113°F).
Ensure the air flow around the sides and back of the switch is not
■
restricted.