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Chapter 3: External Antennas
The SMC2555W-AG2 provides a variety of external antenna options for extending
the radio range and shaping the coverge area. These antennas offer a number of
different mounting locations, including indoor or outdoor, wall, ceiling, or radio mast.
This chapter shows you how to install an external antenna for your
SMC2555W-AG2.
Note: The use of external antennas with the access point requires professional
personnel that are trained in the installation of radio transmitting equipment. The
user is responsible for compliance with local regulations concerning items such as
antenna gain, cables, lightning arrestors, and transmit power. Therefore, you must
consult a professional contractor knowledgeable in local radio regulations prior to
equipment installation.
Installation Procedures
Follow these steps to install an external antenna and connect it to the
SMC2555W-AG2.
Caution: Never mount the access point outdoors to be near an external antenna. The
access point must always be installed indoors.
1.
Plan the Installation
• Pigtail Cables - Use the coax pigtail cable attached to the antenna to connect
to the access point. Because most pigtail cables are a relatively short length
(83 cm or 33 inches), be sure to find a suitable mounting position for the
antenna that is not too far from the access point. If an extension cable is
required, please contact a professional installer who is trained in RF
installation and knowledgeable in the local regulations.
• Installation Location - Plan the antenna's position and orientation.
Warning:
Consider these points:
• Use the antenna's mounting bracket or other hardware, if included.
• For optimum performance, mount antennas as high as possible above any
obstructions, and away from any signal absorbing or reflecting structures
(such as those containing metal)
• Be sure there are no other radio antennas mounted within 2 m (6 ft).
The radiated output power of this device is below the FCC radio
exposure limits. Nevertheless, the device should be used in such a
manner that the potential for human contact during normal operation
is minimized. To avoid the possibility of exceeding the FCC radio
frequency exposure limits, human proximity to the antennas should
not be less than 20 cm (8 inches) during normal operation.
3-1
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