HP 1820-24G-PoE Plus, Руководство по установке и началу работы

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Installing the Switch
Included Parts
Installation Precautions
Follow these precautions when installing the switch.
W A R N I N G
■ 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 progres-
sively lighter devices installed above.
■ When wall mounting, to meet national and international safety
requirements, wall mount with the network ports facing up. The
side vents cannot be placed up or downward.
C a u t i o n s
■ When installing the switch, the AC outlet should be located near the
switch and should be easily accessible in case the switch must be
powered off.
■ Ensure that the AC power source circuits are properly grounded.
■ Use only the AC/DC power adapter and power cord (if applicable),
supplied with the switch. Use of other adapters or power cords, including
those that came with other HP Networking products, may result in
damage to the equipment.
For those switches that use a power cord, if your installation requires a
different power cord than the one supplied with the switch, 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.
■ 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.
■
Do not install the switch in an environment where the operating
ambient temperature might exceed 40
°
C (104
°
F). This includes a fully-
enclosed rack. Ensure the air flow around the sides and back of the
switch is not restricted. Leave at least 7.6 cm (3 inches) for cooling.
■ Ensure all port covers are installed when the port is not in use.