Motorola WS2000 - Wireless Switch - Network Management Device System Reference Manual page 103

Antenna Use the drop-down menu to configure the Antenna Diversity settings for Access Ports that use
Diversity external antennas.
Full Diversity: Utilizes both antennas to provide antenna diversity
Primary
Secondary
RTS Threshold Set the Request to
RTS is a transmitting station's signal that requests a Clear To Send (CTS) response from a
receiving station. This RTS/CTS procedure clears the air when many mobile units (MUs) are
contending for transmission time. Modifying this value allows the administrator to control the
number of data collisions and thereby enhance communication with nodes that are hard to find
because of other active nodes in the transmission path.
In this field, the administrator can specify a Request To Send (RTS) threshold (in bytes) for use
by the WLAN's adopted Access Ports.
This setting initiates an RTS/CTS exchange for data frames that are larger than the threshold,
and sends (without RTS/CTS) any data frames that are smaller than the threshold.
Consider the tradeoffs when setting an appropriate RTS threshold for the WLAN's Access Ports.
A lower RTS threshold causes more frequent RTS/CTS exchanges. This consumes more
bandwidth because of the additional latency (RTS/CTS exchanges) before transmissions can
commence. A disadvantage is the reduction in data-frame throughput. An advantage is quicker
system recovery from electromagnetic interference and data collisions. Environments with more
wireless traffic and contention for transmission make the best use of a lower RTS threshold.
A higher RTS threshold minimizes RTS/CTS exchanges, consuming less bandwidth for data
transmissions. A disadvantage is less help to nodes that encounter interference and collisions.
An advantage is faster data-frame throughput. Environments with less wireless traffic and
contention for transmission make the best use of a higher RTS threshold.
Set Rates Click the
screen where the default
Supported Rates
can be set.
A list of available Basic and Supported rates
for the radio are listed in two columns with
checkboxes next to each rate. Selecting a rate
as a Basic Rate automatically selects that rate
as a Supported Rate and disables the option in
the Supported Rates column.
Only: Enables only the primary antenna
Only: Enables only the secondary antenna
NOTE: Antenna Diversity should only be enabled if the Access Port has
two matching external antennas.
Send Threshold (RTS Threshold)
Set Rates button to open a sub-
Basic Rates
for 802.11b/g Access Ports
Wireless Configuration
by specifying a number.
and
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