IE340 Series Installation Guide
60
Select an enclosure that is large enough for the switch, DC power
supply, and all other included equipment.
The enclosure size must be determined by considering multiple
factors, including the outside ambient temperature, total heat
generated by the installed equipment, sealed or unsealed
enclosure type, enclosure material, paint color, mounting method
(wall, pole, ground, etc.), and sun load. The smaller enclosure size
you choose, the higher the risk of overheating the product faces.
If the product overheats in an enclosure that was built without
taking into account these factors, the warranty of the product might
be voided. Consult Allied Telesis when assistance is needed.
The enclosure BTU/hour rating must be higher than the total BTU/
hour values of equipment installed in the enclosure, over the
expected operating temperature range. For the operating
temperature ratings, refer to Table 16 on page 128. For heat
dissipation, refer to Table 21 on page 130.
Mounting orientations affect maximum operating temperature
capability. Allied Telesis recommends the vertical mounting
orientation.
If you install the switch in an metal enclosure, be sure to review the
manufacturer’s installation guide for rules and restrictions on site
requirements, and to follow all guidelines and safety warnings.
The switch and DC power source must be installed close to each
other so that the DC power cables are kept as short as possible to
minimize voltage loss.
Before installing the DC power supply, be sure to review the
manufacturer’s installation guide for rules and restrictions on site
requirements, and to follow all guidelines and safety warnings.
The site should include dedicated power circuits or power
conditioners to supply reliable electrical power to the network
devices.
The switch and power supply must be properly connected to a
protective earth ground.
The switch and power supply must be individually grounded to the
grounding conductor. Do not daisy-chain the ground wires.
If you install the switch in a metal enclosure, the enclosure must be
properly grounded to a protective earth ground following local
electrical codes and the instructions in the manufacturer’s
installation guide.
Powered devices connected to the LAN ports on the switch must
be grounded to the same grounding conductor at the service
entrance as the switch.
LAN ports should have additional lightning protections as specified
in 802.3at standard, Section 33.4.1.1.2, Environment B
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