3Com Corporation WL306 Manuel D’Utilisation

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for cable TV-UHF applications and may degrade the signals in the band used by 
the access point.

The ceiling-mount omnidirectional 
antenna (model number 3CWE492) 
is designed to cover large, open 
areas. It should be located at or near 
the center of the ceiling of a large, 
open area (such as an open office 
space divided into cubicles) to 
provide uniform coverage in all 
directions.

It is mounted by means of a single-hole stud mount, and so can be fixed easily to 
drop ceiling tiles or to a solid ceiling surface where cable routing access is 
available.

This antenna does not have an electrical connection between the mask mount and 
the coaxial cable shield. However, adding a lightning arrestor will correct this 
situation by grounding the outer shield as recommended. Some arrestor designs 
provide over-voltage protection for the signal sent down the cable. If you use such 
a design, be sure that it can pass signals used in the 2.5 GHz signal range. Many 
inexpensive units are available with F connectors, but these are typically designed 
for cable TV-UHF applications and may degrade the signals in the band used by 
the access point.

The ceiling-mount hallway antenna 
(model number 3CWE497) has a 
bidirectional design that makes it 
ideal for use in long corridors. Its 
small size means it can provide 
extended WLAN coverage with 
minimum visibility.

This model includes a bracket for 
quick installation on standard 
one-inch ceiling rails. In addition, 
mounting holes allow for installation 
to any flat surface with screws.