Cooper Bussmann BU-945U-E 802.11 DSSS user manual 3A1582Rev1.6

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Cooper Bussmann Wireless Ethernet & Device Server BU-945U-E 802.11 DSSS User Manual

If operating in New Zealand the frequency range is 921-928MHz and the available channels are:

•2 x non overlapping 1.25MHz channels

•1 x 2.5MHz channel

•1 x 5MHz channel

If operating in Hong Kong the frequency range is 922-925MHz and the available channels are:

•2 x non overlapping 1.25MHz channels

•1 x 2.5MHz channel

Regions will only show the available channels for that location. See below for a diagram of the frequency ranges and channels.

Each Country/Region has a different frequency regulation with multiple band widths and numerous channels available. The main reason for having different channels and bandwidths is to allow multiple radios to operate in close proximity with minimal interference.

As you can see from the Channels Diagram and the Data Throughput Table (below) the greater the band width the greater the overall data throughput.

If selecting the high band width, i.e., 20MHz you will be limited to one channel which may be more susceptible to outside interference because it spans the available 900MHz frequency range, in some regions this high band width option may not even be available.

If selecting the lower bands, i.e., 1.25MHz you have more channels available and each channel is non-overlapping (Adjacent channels do not cross over), however the Data throughput will be considerably lower.

If you require a high data throughput then the higher band width will need to be selected and care with antenna placement, etc. will also need to be taken into account.

Selecting a 20 MHz channel will give the maximum TCP/IP throughput of around 22 Mbps however if the band width is reduced (10MHz, 5MHz, etc.) the maximum data throughput will also be reduced

For an indication of the data throughput levels used with different channel bandwidths see the following “BU-945U-E Radio Data Throughput” table.

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3A1582Rev1.6

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Contents Read Retain Cooper Bussmann Application Engineering FCC NoticePhone 800 a.m 500 p.m. Central, M-F 636 Fax 636 Important Notice GNU Free Documentation LicenseCooper Bussmann Contents BU-945U-E 802.11 630mW max power Access Point vs ClientNetwork Topology 3A1582Rev1.6 Bridge vs. Router Getting Started Quickly Antenna Installation GeneralLine-of-sight installations Bench test and Demo System SetupPlant and Factory Installations AntennasInstallation tips Omni-directional AntennasDirectional Antennas Power SupplySerial Connections RS232 Serial PortDB9 Connector Pinouts RS485 Serial Port3A1582Rev1.6 Discrete Digital Input/Output Start-up Selecting a Channel LED Indication802.11 900 MHz Channels 3A1582Rev1.6 Radio Throughput Data Throughput Based on Repeater HopsConfiguring the Unit for the First Time Default ConfigurationAccessing Configuration for the First Time Method 1 Set PC to same network as BU-945U-E Power up the BU-945U-E moduleEnter the username user and default password user For local addresses3A1582Rev1.6 Quick Start Configuration Quick StartNetwork Configuration Configured Essid of the client Dhcp Server Configuration, Default is uncheckedWireless ports will have the same IP address Save Changes and ResetSecurity Menu Encryption keys must not be all zeros, i.e3A1582Rev1.6 Transparent Bridge Operation Radio ConfigurationNormal Operation Router OperationDrop back to non-bursting mode Bands Default is AutoSignal quality, etc Access pointDefault distance is 20km Dhcp Client ConfigurationRadio Mode BU-945U-E Only Supports the 802.11 Standard Channel SelectionDhcp Server Configuration DNS Server ConfigurationSpanning Tree Algorithm / Redundancy Multiple AP Repeater Mesh Network 3A1582Rev1.6 Example Extending range using WDS Site B WDS ConfigurationExample Roaming with WDS Access Points Example Adding Redundancy3A1582Rev1.6 Example WDS Routed Network Mouse, to highlight the entire row Routing Rules WDS ConnectionsSTP Wireless Message Filtering Specifies a destination hostInformation at a later time 3A1582Rev1.6 MAC Address Filter Configuration IP Address Filter ConfigurationUtilize the radio link. All other devices are blocked ARP Filter Configuration Serial Port Configuration RS-232 PPP ServerSerial Gateway Server/Client/Multicast Serial Gateway Modbus Modbus RTU to TCPModbus TCP to RTU Gateway Serial MenuMulticast Pipe Manager Multicast Group IP Address Digital Input/OutputPort on the Client, i.e., Scada, DCS, etc To be the same on all communicating Multicast devicesModbus I/O Transfer 3A1582Rev1.6 Modbus TCP Configuration on I/O Transfer Menu Module Information Configuration Modbus TCP Client Mappings on I/O Transfer MenuModule Information Webpage Fields Remote Configuration System ToolsConfiguration Examples Setting a BU-945U-E to Factory Default SettingsExtending a Wired Network Client 1 Configuration Client 2 ConfigurationLAN B Configuration Access Point Configuration Client ConfigurationExtending Range of a Network with a Repeater Hop LED Indicator Condition Meaning Diagnostics ChartBoot Status LED Indication during Start-up RED ContinuouslyConnectivity Parameters Diagnostic Information AvailableConnectivity Site SurveyStatistics Network Traffic AnalysisConnection Information Internal Diagnostic Modbus Registers9999 Both Reset module enter Ffff to reset module 5014 STA OnlyStatistic Registers Testing Radio Paths UtilitiesPing 3A1582Rev1.6 Ipconfig ArpRoute Radio Transceiver Power SupplyGeneral Serial PortsSystem Parameters Input / Output statusWeb-Based Upgrade Appendix a Firmware UpgradesCSMA/CD ACKCSMA/CA DhcpIeee IPX-SPXISN NIC SNRNAT SSLWAN VoIPVPN WEPDBm to mW Conversion Installation MaterialsIperf Applications 3A1582Rev1.6 JPerf Application 3A1582Rev1.6 Preamble Terms and Conditions3A1582Rev1.6 No Warranty 3A1582Rev1.6 Customer Assistance