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Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual
Radio Mode BU-245U-E -G support 802.11b and 802.11g radio standards and to limit operation to one or the
other, select the desired standard. Normally selecting “auto” allows the modem to make the best choice.
BU-245U-E -A only supports 802.11a radio standard.
Transmit Power Level This allows adjustment of the radio power. Do not set the radio power above the allowed setting for your
country You can reduce the power for short range applications, or to allow the use of high gain
transmitter antennas while still complying with the emission requirements of your country.
See “Appendix D” for dBm to mW conversion
Channel (AP Only) BU-245U-E-G Radio Channels 1 to 13 (depending on country) may be configured at the Access Point.
Refer Section 3.1.
BU-245U-E -A Radio channels can be individually set (AP only – Client ignores the selection) or left in
Auto (default) and then select the appropriate U-NII groups 1,2,3,4 each one having its own group of
channels, Maximum Power and DFS selection.
The default radio channel for both A & G models is Auto, meaning on startup it will scan all available and
selected channel groups (Country dependent) and pick the quietest channel.
Channel Width BU-245U-E-G Stations only. When configured as a Station the module will periodically scan the
(STA and Auto Channel Only) channels looking for an Access Point. This option is used to speed up the Access Point scanning process
of the Client radio by only scanning certain channel bands (5M, 10M, and 20M) or automatically scan all
channels. Default is auto.
Turbo Mode (Only for fixed Selecting Turbo Mode doubles the transmit data rate offered on a Single channel.
Channels – No Auto) Maximum data rate up to 108Mbps.
Only usable with other Cooper Bussmann BU-245U-E-A&G modules configured with the same Turbo
Channel. If using the Turbo Mode feature all modem in the system will need to be configured with Turbo
mode and the correct channel to communicate.
Transmit Data Rate The radio baud rate in Mega (million) bits per second (Mbps) for point to point radio transmissions.
The default value is Auto. Select a fixed rate to force the radio to use the selected rate.
Note: Increasing the Transmit Data rate will decrease the Transmit power level. E.g.,
selecting 54 Mbps fixed data rate will reduce the transmit power from 400mW down to 125mW.
This is to comply with 802.11 regulations.
Beacon Interval (AP only) This interval is the period between beacon transmissions sent by an Access Point. The default value is
100 milliseconds, and it may be adjusted from 50 to 4095 milliseconds.
Disable SSID broadcast. (AP only) This should be used to prevent unwanted eavesdroppers from detecting the radio network System
Address (SSID) by passively listening to beacon transmissions from the Access Point. When disabled,
Access Points will not transmit the System Address openly in Beacon messages. This is particularly
useful in unencrypted radio networks.
Max Distance Configure the maximum distance the radio signal is expected to travel. This allows the modem to
compensate for the flight time of messages as they pass from the transmitter to the receiver, and as
the acknowledgement messages are returned. Setting this value larger will cause a small reduction in
throughput. Setting this value too small will cause communications problems over longer distances.
Default distance is 5km
Save Changes Save changes to non-volatile memory. Changes will not take effect until module is reset.
Save Changes and Reset Save changes to non-volatile memory and reset module
3A1576Rev1.6