TRENDnet TEW-511BRP User Manual page 20

which rates will be used. The Router will also announce that it will automatically select the best rate for transmission.
The default setting is Default, when the Router can transmit at all standard wireless rates (1-2Mbps, 5.5Mbps,
11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for older wireless technology, and All, when the Router
can transmit at all wireless rates. The Basic Rate is not the actual rate of data transmission. If you want to specify the
Router's rate of data transmission, configure the Transmission Rate setting.
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 Router 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
Router and a wireless client. The default value is Auto (Default).
Transmission Power: This option provides the Router's RFoutput 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).
CTS Protection Mode: CTS (Clear-To-Send) Protection Mode should be set to Auto (Default). The Router will
automatically use CTS Protection Mode when your Wireless-G products are experiencing severe problems and are
not able to transmit to the Router in an environment with heavy 802.11b traffic. This function boosts the
Router's ability to catch all Wireless-G transmissions but will severely decrease performance. If you do not want
to use CTS Protection Mode at all, select Disabled.
Frame Burst Mode: This option can trigger your wireless network with higher performance. However, it should
depend on the manufacturer of your wireless products, the default is Enabled.
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 Router 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
Router 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 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 Router 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.
User's Guide 19