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This chapter provides information for the antenna installer and network manager to determine
where to place Enterasys Wireless APs and lightning protectors. This chapter also shows how to
attach external antennas to the APs.
For information about...
Determining the Location of the AP
Determining the Location of the AP
An Enterasys Wireless AP connects to a lightning protector with a 51-centimeter (20-inch) cable.
The lightning protector connects to the outdoor antenna with a standard 6.1-meter (20-foot), 7.6-
meter (25-foot), 15.24-meters (50-foot), or a 22-meter (75-foot) low-loss cable. A longer cable
decreases the distance achievable between antennas. The ideal location to install your Enterasys
Wireless AP and lightning protector must satisfy the following requirements:
•
The location must be indoors to protect the AP from extreme weather conditions, excessive
heat and humidity, and to keep the unit free from vibration and dust.
T
•
The lightning protector and antenna mast must be connected to the same earth ground (using
separate grounds) as the AC wall outlet ground using an equipotential bonding conductor.
•
The location must provide a connection to the network backbone via an Ethernet LAN cable
going to a hub, bridge, or directly into a patch panel. An AP in a WDS does not require an
Ethernet connection since backhaul is established over the wireless medium.
•
The location must be close to where the low-loss antenna cable will enter the building. The
low-loss cable connecting the antenna to the lightning protector should not exceed 22 meters
in length for 2.4 GHz, or 15.24 meters in length for 5 GHz, due to the distance reduction with
longer cables.
•
Enterasys Networks recommends using LMR200 or LMR400 cable for 2.4 GHz and LMR600
for 5GHz.
AP Placement and Configuration
Note: This requirement does not apply to the AP3660, AP3765, and AP3767e, which are outdoor
access points.
Enterasys Wireless External Antenna Site Preparation and Installation Guide 2-1
2
Refer to page...
2-1
2-2
2-4
2-6
2-7
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