HP Manager Software manual Planning the 3COM Mobility System

134CHAPTER 4: PLANNING THE 3COM MOBILITY SYSTEM

Using an object other than a line to represent an RF obstacle’s dimensions does not materially affect the calculation of RF attenuation. When 3WXM calculates attenuation along any vector passing through the obstacle, it counts the obstacle’s RF attenuation only once, regardless of the floor space it occupies.

The Create RF Obstacle dialog box appears.

2Go to “To use the Create RF Obstacle Dialog box” on page 132.

Defining Wireless You must define which areas of your enterprise require wireless network

Coverage Areas coverage. In 3WXM, you plan for both coverage and capacity requirements in a particular area on the floor. Capacity requirements are determined by the number of users in the area and the amount of wireless network bandwidth desired for every user.

The floor of a building can contain multiple coverage areas if several groups of users on the floor require different bandwidth. For example, an engineering department might have its own coverage area to accommodate a need for higher bandwidth, but the rest of the floor might be planned for general use with lower bandwidth requirements.

You must also identify the wireless technology required (802.11a or 802.11b/g) for coverage areas. For areas requiring multiple wireless technologies, two completely overlapping coverage areas are created — one for 802.11a and one for 802.11b/g.

You define coverage by creating the following items:

„Wiring closets (at least one is required if you plan to install directly connected MAPs). See “Creating a Wiring Closet” on page 135.

„Coverage areas (required). See “Defining a Coverage Area” on page 137.

„RF measurement points (optional). See “Showing RF Coverage” on page 168.

„Third-party access points (optional). See “Adding a Third-Party Access Point” on page 149.