110CHAPTER 4: PLANNING THE 3COM MOBILITY SYSTEM

The ceiling height is based on the surface of the ceiling where the access points will be mounted, not on the center of the plenum space between floors.

4In the Ceiling Type box, select the type of ceiling used most commonly in the building.

3WXM adjusts the default attenuations based on your selection.

5To change the default attenuation for radios, type the number of dB in the 802.11a (dB) box or 802.11b/g (dB) box.

6Do one of the following:

„Click Apply Changes to apply the changes.

„Click Ignore Changes to clear the changes without applying them.

7Do one of the following:

„Click Next to configure floor information for the building. (See “Importing or Drawing Floor Details”.)

„Click Finish to save the changes and close the wizard.

Importing or

You can add information for a floor by importing a drawing of the floor

Drawing Floor

or by using 3WXM’s graphics tools to draw the floor.

Details

After you import or draw the floor, you need to specify the RF

 

 

characteristics of the floor, by specifying the attenuation of obstacles

 

such as walls, doors, windows, and so on. The attenuation of an object

 

indicates how much the object affects an 802.11 radio signal. 3WXM

 

uses the attenuation information when calculating how many MAPs you

 

need and where to place them in order to provide the desired wireless

 

coverage.

 

The following sections describe how to import or draw a floor. For

 

information about specifying the RF characteristics of the floor, see

 

“Specifying the RF Characteristics of a Floor” on page 130.

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Image 110
HP Manager Software manual Importing or, Drawing Floor, Details