Motorola TEAM Badge (EWB100), Deployment Manual

Page: 24 / 146

EWB100 Usage and Deployment Guide Rev 1.13
Page 24
5 802.11 Interface
5.1 Basic Radio Functionality
The following describes the 802.11 related features of the EWB 100.

It is an 802.11 b/g compatible device. As such it operates only in the
2.4GHz band.

It supports operation on channels 1-11 in the US and 1-14 on a worldwide
basis. By default it will assume channels 1-11 are operational. For
operation on other channels, contact Motorola support.

To minimize power consumption it will scan only channels 1, 6, and 11.
Other channels are ignored. This may be changed by a configuration
command.

Output power is typically 15dbm or greater.

Receive sensitivity is typically greater than -85dbm for 802.11b packets.

It supports OPEN, WEP, TKIP, and AES encryption.

It supports WPA-PSK and WPA2-PSK authentication

It supports WMM and will use it if supported by the AP. Voice traffic is
sent on AC=0, data traffic is on AC=3.

DTIM = 2 must be used for the device. Other settings will result in
unreliable operation.

The network should be configured to use as low a basic rate for beacons
and broadcast packets as possible. Ideally 2 Mbits should be used but
5.5Mbits is also supported. Due to a lack of antenna diversity, the
EWB100 does not operate well at 11Mbits basic rate. Pure 11g operation
is supported but again the lowest acceptable rate should be used.

To increase receive range the device will associate at lower than the
highest (54Mbits) 802.11g rates, usually 24 Mbits. It will transmit at any
rate supported by the AP.