User`s guide

MBR W40 – Admin’s Manual
28
Figure 29: Transmission Properties Section
2. Specify Transmission Properties as the following:
Parameter
More Info
Transmission
Rate
The transmission rate is set according to the speed of your WiFi connection.
Select the transmission rate from the drop-down menu, or select 'Auto' to
have W40 automatically use the fastest possible data transmission rates (the
only option when using 802.11ng). Note that if your wireless connection is
weak or unstable, it is best to select a low transmission rate.
Transmit Power
The percentage of maximum transmission power.
CTS Protection
Mode
CTS Protection Mode boosts your gateway's ability to intercept 802.11g and
802.11b transmissions. Conversely, CTS Protection Mode decreases
performance. Leave this feature disabled unless you encounter severe
communication difficulties between the gateway and 802.11g products. If
enabling, select "Always". Select "Auto" to have W40 decide automatically
whether or not to use this feature.
CTS Protection
Type
Select the type of CTS protection—CTS-only or RTS-CTS.
Frame Burst
This feature (also known as packet bursting) increases the speed of a 802.11g-
based wireless network by unwrapping short packets and rebundling them into
a larger one.
Frame Burst – Max Number - At any given time, only one wireless client can
communicate with the access point. Therefore, clients, competing for air time,
transmit data in frame bursts. Use this field to determine the maximum
number of frames that W40 will allow clients to transmit in a single frame
burst.
Frame Burst – Burst Time - The maximum length of a frame burst. Limit the
time of a frame burst to avoid large frames from taking communication
precedence.
Beacon Interval
- A beacon is a packet broadcast by W40 to synchronize the wireless network.
The Beacon Interval value indicates how often the beacon is sent
DTIM Interval
The Delivery Traffic Indication Message (DTIM) is a countdown value that
informs wireless clients of the next opportunity to receive multicast and
broadcast messages. This value ranges between 1 and 16384.
Fragmentation
Threshold
Packets that are larger than this threshold are fragmented into multiple
packets. Try to increase the fragmentation threshold if you encounter high
packet error rates. Do not set the threshold too low, as this can result in
reduced networking performance.
RTS Threshold
W40 sends Request to Send (RTS) packets to the wireless client in order to
negotiate the dispatching of data. The wireless client responds with a Clear to