Aruba AP-175 Outdoor Access Point | Installation Guide 9
Ethernet Cabling
When a suitable antenna location has been determined, you must plan a cable route from the wireless
bridge or mesh link outdoors to a suitable power and/or network source.
Consider these points:
zThe Ethernet cable length should never be longer than 90 m (295 ft).
zDetermine a building entry point for the cable (if applicable).
zDetermine if conduits, bracing, or other structures are required for safety or protection of the cable.
zFor lightning protection at the power injector end of the cable, consider using a lightning arrestor
immediately before the cable enters the building
Grounding
It is important that the wireless bridge or mesh link, cables, and any supporting structures are properly
grounded. Each AP-175 access point includes a grounding screw for attaching a ground wire. Be sure that
grounding is available and that it meets local and national electrical codes. Ground the access point first
using the external ground stud on the unit before making any other connection.
Installing the AP-175
The AP-175 can be installed on a wall or attached to a pole. The following section describes how to attach
the necessary hardware to the AP and how to mount the AP in the selected location.
Selecting the Installation Site
zThe site should be located within at least a 60% range of the 1st fresnel zone without obstacles to provide
line of sight (LOS) transmission, increase coverage capacity, and minimize the number of necessary
sites.
zIf no LOS is secured, areas in non-line-of-sight (NLOS) areas could be covered as well, but the distance
of coverage and area of coverage are decreased; more sites are needed to provide coverage for same
area than in the LOS scenario.
zInterference must be considered in site selection. The new site should avoid known interference, unless
the interference is controllable.
zKeep the AP-175 away from places that are susceptible to high temperature, dust, harmful gas,
inflammable, explosive, electromagnetic interference (high power radar, radio station and transformer),
unstable voltage, heavy vibration, or loud noise. In engineering design, the site should be selected
according to the network planning and technical requirements of communications equipment, as well as
the considerations such as climate, hydrology, geology, earthquake, electric power, and transportation.
Installing the AP-175 on a Pole
1. Attach the AP-175 on the mounting bracket using the two M6 x30 bolts (with flat and spring washers) on
each side of the mounting bracket.
AP-175-IG-Rev01.fm Page 9 Friday, September 17, 2010 4:27 PM
