3Com Corporation WL306 Manuel D’Utilisation

C

HAPTER

 5: C

ONDUCTING

 

A

 S

ITE

 S

URVEY

You should also consider the following items:

■

If there any radio frequency (RF) systems already in use at the site, their signals 
could interfere with the access point signals.

■

If the access point will be connecting to a wired LAN, the access point must be 
installed close enough to connect to the hub with an Ethernet cable.

■

Available AC power. See “Electrical Requirements”.

The 3Com 11 Mbps Wireless LAN access point draws power over Category 5 
Ethernet cabling using a power adapter. Because erratic electrical power can lead 
to serious transmission problems and loss of data, 3Com recommends using one 
of the following power alternatives.

■

Preferred: Isolated ground circuit with online, uninterruptable power supply 
(UPS) that also acts as filter and surge suppressor

■

Good: Isolated ground circuit with surge suppressor

■

Fair: Dedicated circuit with UPS

■

Acceptable: Dedicated circuit with surge suppressor

If you must use a nondedicated circuit, avoid using the following types of devices 
on that circuit, because they can affect the reliability of the circuit:

■

Devices with components intended or known to produce heat (such as space 
heaters, laser printers, heat guns, or soldering irons)

■

Single devices drawing more than 20% of the rated value of the circuit

■

Multiple devices drawing a total of more than 60% of the rated circuit value

Following is a summary of the basic procedure for setting up and running the site 
survey tests. For details, see the topics indicated in the steps.

■

Set up the access point in the first trial location and set up a client in the first 
work area.

■

On the client computer, launch the Site Survey tool, configure the site survey, 
and run the tests from the first work area.

■

Move the client computer to the next work area and run the Site Survey tool 
again. (Alternatively, run the Site Survey tool on the client desktop computer in 
the next work area.)

Repeat this step for each work area.

■

Set up the access point in the next trial location and run the Site Survey tool 
again from each of the work areas.

Repeat this step for each trial location.