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User’s Guide
17
Wireless-B/G Settings
Authentication Type:
Open System: This is default setting, those wireless clients that NOT use a WEP key for authentication.
Shared Key: This option means the wireless clients use a WEP key for authentication. Shared Key is only available
if the WEP option is implemented.
Transmission Rate: The data transmission rate should be set depending on the speed of your wireless network. You
can select a proper transmission speeds to fit your wireless clients requirement, or you can select Auto (Default) to
have the AP automatically adjust one the fastest and suitable data rate to fit network status at the time. Usually this
function can be named Auto-Fallback feature. Auto-Fallback will treat one best connection rate between the AP and a
wireless client. The default value is Auto (Default).
Transmission Power: This option provides the AP’s RF output power adjustment. To minimize the possibility of
eavesdropping by unauthorized wireless users, suggest to decrease the transmission power with a needed by your
wireless environment. By drop down menu, you can select the appropriate level, Full (Default), Half, Quarter,
Eighth, or Min. The default is Full (Default).
Antenna Select: This option provides antenna setting for which one you would like to set as TX/RX antenna. Using
Diversity setting is proposed.
ACK Timeout: The Acknowledgement Timeout means from remote to local data transmission, one parameter to
control both acknowledging action to guaranty those packets have already be received. Usually, for short distance,
keep default setting is proposed. If there is long distance application, have minor increased with this parameter will be
proposed.
Beacon Interval: The Beacon Interval value indicates the frequency interval of the beacon. Enter a value between 20
and 1000. A beacon is a packet broadcast by the AP to synchronize the wireless network. The default value is 100.
DTIM Interval: This value indicates the interval of the Delivery Traffic Indication Message (DTIM). A DTIM field is a
countdown field informing clients of the next window for listening to broadcast and multicast messages. When the AP
has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval
value. Its clients hear the beacons and awaken to receive the broadcast and multicast messages.
The default value is 1.
Fragmentation Threshold: This value specifies the maximum size for a packet before data is fragmented into
multiple packets. If you experience a high packet error rate, you may slightly increase the Fragmentation
Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor
reduction of the default value is recommended. In most cases, it should remain at its default value of 2346.
RTS /CTS Threshold: Using this setting can regulate your wireless network if you experience any inconsistent data
flow situation, only by minor adjustment of the default value, the default value 2346 is recommended. The RTS/CTS
mechanism will not be enabled if your wireless network packet less than RTS threshold value. The AP sends Request
to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame. After receiving an
RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission.
The RTS Threshold value should keep at its default value of 2346.
Short Preamble: This setting is for 11b clients, usually set short value will enhance your WLAN performance for 11b
client, however the 11b clients must have same feature as well.
Allow 2.4GHz 54Mbps Station Only: In order to keep high performance for this WLAN, set this option Enable will
only allow stations with 54Mbps data rate to associate this AP.
RTS/CTS Protection Mode: CTS (Clear-To-Send) Protection Mode should be set to Auto (Default). The AP will
automatically use CTS Protection Mode when the Wireless-G products are experiencing severe problems and are not
able to transmit to the AP in an environment with heavy 802.11b traffic. This function boosts the AP’s ability to catch
all Wireless-G transmissions but will severely decrease the performance. If you do not want to use CTS Protection
Mode at all, select Disabled.
RTS/CTS Protection Rate: This setting is set the rate of RTS/CTS while protection mode is enabled.
RTS/CTS Protection Type: This protection mode provides 2 types, one is RTS/CTS and other is CTS only.
Generally, using CTS only is able to fulfill most of environment.