Fortinet OAP832E, Руководство по установке, Страница: 32 / 66

Installing the Access Point 8
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Temperature - The OAP832e is tested for normal operation in temperatures from -40F to
149F. Operating in temperatures outside of this range may cause the unit to fail.
•
Wind Velocity - The OAP832e can survive in winds up to 165 mph. You must consider the
known maximum wind velocity and direction at the site and be sure that any supporting
structure, such as a pole, mast, or tower, is built to withstand this force.
• Lightning - You should make sure that the unit, any supporting structure, and cables are all
properly grounded. Additional protection using lightning rods, lightning arrestors, or surge
suppressors may also be employed in order to protect against lightning strikes on the
antennas. Contact Meru Sales for more information regarding this equipment.
•
Rain - The OAP832e is weatherproofed against rain. Also, prolonged heavy rain has no
significant effect on the radio signal. However, it is recommended to apply weatherproof
sealing tape around the Ethernet port and antenna connectors for extra protection. If mois-
ture enters a connector, it may cause a degradation in performance or even a complete fail-
ure of the link.
•
Snow and Ice - Falling snow, like rain, has no significant effect on the radio signal. How-
ever, a build up of snow or ice on antennas may cause the link to fail.In this case, the snow
or ice has to be cleared from the antennas to restore operation of the link.
Ethernet Cabling
When a suitable antenna location has been determined, plan a cable route from the OAP832e
outdoors to the PoE-enabled controller indoors. Consider these points:
•
The Ethernet cable length should never be longer than 100 m.
•
Determine a building entry point for the cable.
•
Determine if conduits, bracing, or other structures are required for safety or protection of
the cable.
•
For lightning protection at the controller end of the cable, consider using a lightning arrestor
immediately before the cable enters the building.
•
The shield of the Ethernet cable needs to be grounded at the lightning arrestor. If, by
design, the lightning arrestor cannot provide this ground, the shield of the Ethernet cable
will need to be grounded by the installer.
Grounding
It is important that the OAP832e, cables, and any supporting structures are properly
grounded. The OAP832e unit includes a grounding screw to attach a ground wire. See
Figure 2 on page 9 for grounding screw locations. Be sure that grounding is available and that
it meets local and national electrical codes.