Brocade Communications Systems Mobility 7131 Series Service Manual download pdf (Page 45)

Brocade Mobility 7131 Access Point Product Reference Guide 33

53-1002517-01

Access Point Placement

For optimal performance, install the access point away from transformers, heavy-duty motors,

fluorescent lights, microwave ovens, refrigerators and other industrial equipment. Signal loss can

occur when metal, concrete, walls or floors block transmission. Install the access point in an open

area or add access points as needed to improve coverage.

Antenna coverage is analogous to lighting. Users might find an area lit from far away to be not

bright enough. An area lit sharply might minimize coverage and create dark areas. Uniform antenna

placement in an area (like even placement of a light bulb) provides even, efficient coverage.

Place the access point using the following guidelines:

• Install the access point at an ideal height of 10 feet from the ground.

• Orient the access point antennas vertically for best reception.

• Point the access point antennas downward if attaching to the ceiling.

To maximize the access point’s radio coverage area, Brocade Mobility recommends conducting a

site survey to define and document radio interference obstacles before installing the access point.

Site Surveys

A site survey analyzes the installation environment and provides users with recommendations for

equipment and placement. The optimum placement of 802.11a/n access points differs from

802.11b/g/n access points, because the locations and number of access points required are

different to support the radio coverage area.

Brocade Mobility recommends conducting a new site survey and developing a new coverage area

floor plan when switching from legacy access points ( Mobility 5181 Access Points model) to a new

Mobility 7131 Access Point or Mobility 7131N Access Point model, as the device placement

requirements could be significantly different.

Antenna Options

Brocade Mobility supports two antenna suites for Mobility 7131 Access Point and Mobility 7131N

Access Point models. One antenna suite supporting the 2.4 GHz band and another antenna suite

supporting the 5 GHz band. Select an antenna model best suited to the intended operational

environment of your access point. The Mobility 7131N model access point can be purchased in a

three radio configuration. If a three radio SKU is purchased, the access point ships with a single

antenna, factory connected, to the access point chassis (next to the existing R1-A connector). This

antenna is in addition to the other six antennas available to the access point’s other two radios.

The single antenna supporting the Mobility 7131N Access Point’s third radio supports sensor mode

only and can not function as a WLAN radio.

NOTE

On a single-radio access point, Radio 1 can be configured to be either a 2.4 GHz or 5 GHz radio. On

a dual-radio model, Radio 1 refers to the

2.4 GHz radio and Radio 2 refers to the 5 GHz radio. However, there could be some cases where a

dual-radio access point is performing a Rogue AP detector function. In this scenario, the access

point is receiving in either 2.4 GHz or 5 GHz over the Radio 1 or Radio 2 antennae depending on

which radio is selected for the scan.

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Brocade Communications Systems Mobility 7131 Series Service Manual Page 45