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Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual

Installation tips

Connections between the antenna and coaxial cable should be carefully
taped to prevent ingress of moisture. Moisture ingress in the coaxial cable
is a common cause for problems with radio systems, as it greatly increases
the radio losses. We recommend that the connection be taped, firstly with
a layer of PVC Tape, then with a vulcanizing tape such as “3M 23 tape”,
and finally with another layer of PVC UV Stabilized insulating tape. The first
layer of tape allows the joint to be easily inspected when trouble shooting
as the vulcanizing seal can be easily removed.

Where antennas are mounted on elevated masts, the masts should be
effectively earthed to avoid lightning surges. For high lightning risk areas,
surge suppression devices between the module and the antenna are
recommended. If the antenna is not already shielded from lightning strike
by an adjacent earthed structure, a lightning rod may be installed above
the antenna to provide shielding.

Omni-directional Antennas

An omni-directional antenna transmits the same
amount of radio power in all directions - as such that
are easy to install and use. The dipole antenna with
integral 15 ft (5m) cable does not require any
additional coaxial cable; however a cable must be used
with the collinear antennas.

Omni-directional antennas should be mounted
vertically, preferably 1 wavelength away (see drawing
below for distances) from a wall or mast and at least
3ft (1m) from the radio module to obtain maximum
range.

3A1576Rev1.7

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Summary of Contents for BU-245U-E

Page 1: ...Cooper Bussmann BU 245U E Wireless Ethernet Device Server User Manual Version 1 7 3A1576Rev1 7 Read and Retain for Future Reference ...

Page 2: ...ect to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This device must be operated as supplied by Cooper Bussmann Any changes or modifications made to the device without the written consent of Cooper Bussmann may void the user s authority to operate the d...

Page 3: ...stem design Designers must include this Important Notice in operating procedures and system manuals These products should not be used in non industrial applications or life support systems without consulting Cooper Bussmann first 1 A radio license is not required in some countries provided the module is installed using the aerial and equipment configuration described in the BU 245U E Installation ...

Page 4: ...cense applies to most of the Free Software Foundation s code and to any other program whose authors commit by using it The Free Software is copyrighted by Free Software Foundation Inc and the program is licensed As is without warranty of any kind Users are free to contact Cooper Bussmann at the following Email Address fusetech cooperindustries com for instructions on how to obtain the source code ...

Page 5: ...ter Operation 29 3 7 RADIO CONFIGURATION 29 Channel Selection 31 Radio Throughput 31 Throughput and Repeaters 32 3 8 ADVANCED RADIO CONFIGURATION 32 3 9 DHCP CLIENT CONFIGURATION 33 3 10 DHCP SERVER CONFIGURATION 34 3 11 DNS SERVER CONFIGURATION 34 3 12 SPANNING TREE ALGORITHM 35 3 13 COMPATIBILITY 36 3 Address Layer 3 Bridge 4 Address Mode 36 What Addresses are in a wireless Ethernet data frame 3...

Page 6: ...THS 73 4 7 UTILITIES 74 Ping 74 Ipconfig 75 Arp 75 Route 76 CHAPTER 5 SPECIFICATIONS 77 APPENDIX A FIRMWARE UPGRADE 79 Web based Upgrade 79 APPENDIX B GLOSSARY 80 APPENDIX C CHANNELS 84 802 11b g 84 802 11b g Turbo 84 802 11a Maximum Radio Transmitter Power 85 802 11a Turbo Maximum Radio Transmitter Power 85 APPENDIX D 802 11A TX POWER 86 dB to mWatt Conversion 86 APPENDIX E EXTERNAL IPERF TEST 87...

Page 7: ...mits 13 x 2 4GHz channels The BU 245U E A uses a 5GHz Direct Sequence Spread Spectrum DSSS wireless transceiver and users must select appropriate channel transmit power etc allowable in that country Please check with your Cooper Bussmann representative for the permitted channel usage in your country See Appendix C for channels selections The BU 245U E unit also provides two serial connections as w...

Page 8: ...is configured as an Access Point and the other as a Client The second diagram shows an existing LAN being extended using BU 245U Es In this example the Access Point should be configured at the LAN end although the wireless link will still work if the Client is at the LAN end An Access Point can connect to multiple Clients In this case the Access Point should be the central unit An Access Point cou...

Page 9: ...r connects devices on different LAN s The IP addresses for the Ethernet and wireless sides are different In this example the wireless link is part of LAN A with the Client unit acting as a Router between LAN A and LAN B Alternately the Access Point could be configured as a Router the wireless link is then part of LAN B If more than two routers are required within the same radio network then routin...

Page 10: ... and a power supply Power the BU 245U E and make an Ethernet connection to your PC for further information on how to do this refer to section 3 2 Configuring the Unit for the first time Set the BU 245U E address settings as per section 3 2 Configuring the Unit for the first time Save the configuration the BU 245U E is now ready to use Before installing the BU 245U E bench test the system It is a l...

Page 11: ...A Canada and Australia 4W EIRP and 2km in Europe 100mW EIRP If using a BU 245U E A 5GHz with a single antenna 5 km 3 miles can be achieved in USA Canada and Australia 1W EIRP and 3km in Europe 500mW EIRP however more care is needed in selecting antennas coax as well as radio paths need to be complete line of site No obstruction what so ever To achieve the maximum transmission distance the antennas...

Page 12: ...tt transmitter we can boost the EIRP to 4 Watts 1 watt Line of Sight Installations In longer line of sight installations the range may be increased by using a high gain antenna on the TX RX connector However the gain should not cause the effective radiated power ERP to exceed the permitted value A second higher gain antenna can be connected to the RX connector without affecting ERP this will incre...

Page 13: ...here antennas are mounted on elevated masts the masts should be effectively earthed to avoid lightning surges For high lightning risk areas surge suppression devices between the module and the antenna are recommended If the antenna is not already shielded from lightning strike by an adjacent earthed structure a lightning rod may be installed above the antenna to provide shielding Omni directional ...

Page 14: ...d must be pointed exactly in the direction of transmission to benefit from the gain of the antenna Parabolic antennas should be mounted as per the manufacturer s instructions with the parabolic grid at the back and the radiating element pointing in the direction of the transmission Ensure that the antenna mounting bracket is well connected to ground earth 2 2 Power Supply The BU 245U E module can ...

Page 15: ...6 DSR Out Data Set Ready always high when unit is powered on 7 RTS In Request to Send 8 CTS Out Clear to send 9 RI Ring indicator RS485 Serial Port The RS485 port provides for communication between the BU 245U E unit and its host device using a multi drop cable Up to 32 devices may be connected in each multi drop network As the RS485 communication medium is shared only one of the units on the RS48...

Page 16: ...proximity switches PNP transistor devices are not suitable Contact wetting current of approximately 5mA is provided to maintain reliable operation of driving relays The digital input is connected between the DIO terminal and common COM The I O circuit includes a LED indicator which is lit GREEN when the digital input is active that is when the input circuit is closed Provided the resistance of the...

Page 17: ... Once a Client identifies a suitable Access Point for link establishment it attempts to establish a link using a two step process Authentication and Association During Authentication the Client and Access Point check if their configurations permit them to establish a link Once the Client has been authenticated it will then request an Association to establish a link Status of the wireless link is i...

Page 18: ...rt RS 485 RED flash Data received to RS 485 Serial Port DIO GREEN Digital Input is grounded DIO RED Digital Output is active DIO Off Digital Output OFF and Input is open circuit The Ethernet RJ45 port incorporates two indication LEDs The LINK LED comes on when there is a connection on the Ethernet port and will blink off briefly when activity is detected on the Ethernet Port The 100MB LED indicate...

Page 19: ...blished The following diagram shows the RF energy distribution for the 802 11b g transmission On the 20MHz channel Green most of the energy is transmitted within the channel however some of the energy is transmitted on the channels either side therefore causing interference on the these channels The 10MHz channels Orange are similar with half of the energy overlapping into the next channel however...

Page 20: ...ing another channel or band When DFS is enabled the Access Point master device goes through the following steps 1 The master device that initiates communications selects a channel and monitors that channel for potential radar interference for a minimum listening time of 60sec channel availability check time No transmissions can occur during this period 2 If interference is detected then the system...

Page 21: ... SETUP position When in SETUP mode wireless operation is disabled The previous configuration remains stored in non volatile memory and will only change if a configuration parameter is modified and the change saved Do not forget to set the switch back to the RUN position and cycle power at the conclusion of configuration for resumption of normal operation Accessing Configuration for the First Time ...

Page 22: ...nder Control Panel The following description is for Windows XP earlier Windows operating systems have similar settings Open Properties of Local Area Connection Select Internet Protocol TCP IP and click on Properties On the General tab enter IP address 192 168 0 1 Subnet mask 255 255 255 0 and press OK Open Internet Explorer and ensure that settings will allow you to connect to the IP address selec...

Page 23: ...trator if you don t know the correct settings for your network E g The default IP address of the BU 245U E modem is 192 168 0 1 and the network you wish to connect to is on 10 10 0 X PC is on 10 10 0 5 Once you have determined the correct settings for your network you need to connect to the modem s RS 232 serial port using a straight through serial cable and a terminal package such as HyperTermina...

Page 24: ...uired For more advanced applications the other parameters can be changed via the normal configuration pages after the Quick Start configuration has been saved Select Quick Start from the Main Menu and then you need to select the following parameters Quick Start Configuration Operating Mode Access Point or Client Bridge operation is assumed for Router selection go to the Network page after Quick St...

Page 25: ...1 TKIP and WPA 2 AES using a Pre Shared Key PSK TKIP Temporal Key Integrity Protocol enhances WEP by using 128 bit encryption plus separate 64bit Tx and Rx MIC Message Integrity Check keys AES Advanced Encryption Standard the most secure encryption method is also based on 128 bit encryption key and is the recommended encryption method in most applications WPA Enterprise 802 1x removes the need to ...

Page 26: ...hecked MAC Address This is the unique hardware address of the BU 245U E and is assigned in the Factory The BU 245U E has two MAC addresses one for each interface Ethernet and Wireless The Ethernet MAC is the primary MAC Address IP Address The IP address of the BU 245U E on its wired Ethernet Interface port and wireless Wireless Interface port This should be set to the IP address you require If the...

Page 27: ... from a module that has a different default key index as long as each module has the same key configured at the same index WEP keys must be entered as pairs of hexadecimal digits separated by colons Hexadecimal digits are in the range 64bit WEP requires 10 Hexadecimal digits and 128bit WEP 0 9 and A F requires 26 Hexadecimal digits For example 12 AB EF 00 56 for 64bit encryption and 12 AB EF 00 56...

Page 28: ...ation Trusted CA Certificate Upload Upload the certificate of the issuer of the RADIUS server s certificate This enables the Supplicant to verify the identity of the RADIUS server during the authentication process Certificate Verification Result Once a certificate has been loaded this text box will contain validation information for the certificate If this text is blank or contains errors the cert...

Page 29: ...ireless ports reflecting the different IP addresses of the separate Ethernet networks All of the devices in these separate networks identify the router by IP address as their gateway to the other network When devices on one network wish to communicate with devices on the other network they direct their packets at the router for forwarding As the router has an IP address on each of the networks it ...

Page 30: ...te 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 po...

Page 31: ...e DFS Dynamic Frequency Selections and if using these DFS channels you need to be aware that there will be a minimum 60 seconds scan monitor time that the radio must perform to check there are no Military or Commercial Radars using the same frequency If a Radar is detected the radio must select another random channel and again go through the 60 second scan monitor time Radio Throughput Below is a ...

Page 32: ... 2 3 4 74dBm 22 11 0 5 5 2 8 11 0 5 5 2 8 1 4 5 5 2 8 1 4 0 7 77dBm 20 10 0 5 0 2 5 10 0 5 0 2 5 1 3 5 0 2 5 1 3 0 6 83dBm 17 8 5 4 3 2 1 8 5 4 3 2 1 1 1 4 3 2 1 1 1 0 5 86dBm 11 5 5 2 8 1 4 5 5 2 8 1 4 0 7 2 8 1 4 0 7 0 3 90dBm 9 4 5 2 3 1 1 4 5 2 3 1 1 0 6 2 3 1 1 0 6 0 3 91dBm 6 3 0 1 5 0 8 3 0 1 5 0 8 0 4 1 5 0 8 0 4 0 2 93dBm 4 5 2 3 1 1 0 6 2 3 1 1 0 6 0 3 1 1 0 6 0 3 0 1 94dBm 3 1 5 0 8 0 4...

Page 33: ...aths with a high fade Margin and good signal quality etc Bursting Selecting this option can increase the data throughput by reducing the overheads associated with wireless transmissions If communicating with a device that does not support bursting the modem will drop back to non bursting mode Passive Scanning STA only Selecting this item stops a Client device from sending probe request messages wh...

Page 34: ...entify devices which have been automatically assigned their IP address by a DHCP server See section 3 9 DHCP Server Configuration DNS is the system which translates internet names such as www cooperbussmann com to IP Addresses The Cooper Bussmann BU 245U E can act as a DNS Server for a local network Name to IP address mapping are automatically updated by the built in DHCP server when it issues an ...

Page 35: ...inks are placed in a standby condition and may be automatically enabled to repair the network if another link is lost The Spanning Tree Algorithm maintains a single path between all nodes in a network by forming a tree like structure The Bridge Priority determines where the node sits in the tree A Bridge configured with the lowest priority 0 will become the root node in the network and will direct...

Page 36: ...below If the Laptop wishes to communicate to Station 1 the DA will be Station 1 the SA will be the Laptop and the BSSID will be the APs MAC Address hence the 3 Address Mode The example shows the Laptop may need to communicate to the Ethernet Device connected to Station 2 You can see that there is now a fourth address that cannot be addressed using the 3 Address Mode of communications i e Laptop AP...

Page 37: ...ange of a wireless network can be extended by allowing Access Points to behave as repeaters and forward traffic to other Access Points Access Point to Access Point communications is also known as Wireless Distribution System WDS The BU 245U E offers very powerful WDS configuration allowing for a mesh network with self healing functionality Alternatively fixed AP to AP links can be configured for o...

Page 38: ...t blank unless that WDS interface is to be on a different subnet Leaving these fields blank will mean that the WDS interface will be bridged with the default wireless interface When adding WDS router interfaces you may also need to add a Routing Rule on the Routing configuration page Spanning Tree Protocol STP column only applies when two or more interfaces are bridged A maximum of 10 WDS Connecti...

Page 39: ... page is accessible via the Repeaters link from the configuration web pages Site B is acting as an Access point for Site A and is a client to Site C likewise Site C is acting as an Access Point for Site B and a Client for Site D Since this example is a bridged network i e all devices on the same IP network and each link is using a different SSID there is no possibility of loops i e multiple paths ...

Page 40: ...us Access Point The diagram above shows a bridging network with a number of Access Points all with the same SSID network structure etc so as the Stations can freely roam between Access Points Each Access Point then needs a separate connection to the next Access Point which is done using the WDS Virtual Access Points or Stations Site B is acting as a Virtual AP for Site A C which in turn are acting...

Page 41: ...ossibility for loops to occur so the bridge Spanning Tree Protocol should be enabled and depending on the size of the mesh possibly configuring a Bridge Priority Bridge Priority is used to determine the connection priority when selecting an interface to put into the forwarding state You can assign higher priority values to interfaces that you want spanning tree to select first and lower priority v...

Page 42: ...o Site C Site B configuration Network Page configured as Primary Access Point Site B WDS configuration Repeaters Page configured with Virtual Station to Site C Site A D WDS configuration Repeaters Page configured with two Virtual Clients to Sites B C Encryption levels and key above are shows as being different however they can be the same as in some of the earlier examples One reason why the Encry...

Page 43: ...erface for Site A or B i e default interfaces 192 168 0 X and 192 168 X respectively It is a requirement that the virtual interfaces at each end point of a WDS link have the same network structure this ensures that the WDS links at either end point are not bridged with their default interface The second WDS entry above specifies a WDS link from Site B to the virtual Client at Site C whose SSID is ...

Page 44: ...ummarized below Add Entry Button Add an entry to the WDS Connections table This adds a virtual station to the device Delete Entry Button Delete the currently selected entry in the WDS Connections table To select a row click anywhere in the row with the mouse to highlight the entire row WDS Connections Connection Mode Specify the connection mode for this link AP Downlink configures the connection a...

Page 45: ... gateway i e they require no routing rules be configured However for the Access Point to be able to deliver traffic to LAN B and LAN C it needs to have routing rules configured that specify the respective BU 245U E client routers as next hop routers i e gateways to networks B and C Note that devices on LAN A should specify the BU 245U E Access Point as their default gateway An alternative to addin...

Page 46: ...ort When the BU 245U E is configured as a Router this does not occur In many cases the intended recipient of the broadcast traffic does not lie at the opposite end of a proposed radio link Reducing unnecessary broadcast traffic sent over the radio link will increase available bandwidth for data The BU 245U E has a filtering feature to help reduce unnecessary wireless transmissions and enhance secu...

Page 47: ...res that at Modem C has Device B in its Whitelist and Modem D has Device E in its Whitelist With this filtering Device A will be not be able to access Device E as Device A is not present in the Whitelist in Modem C If radio links are chained together to form a radio backbone it is also important to consider the operation of the Layer 3 Transparent Bridge Refer Section 3 5 A BU 245U E Client will a...

Page 48: ... protocol of the packet must also match If the protocol is TCP or UDP the source or destination TCP UDP can also be inspected If the IP address and protocol matches and the source or destination port number falls within the range specified the packet is matched Note Configuration pages use TCP protocol on ports 80 and 443 Create Whitelist rules specifying the configuration PC s IP address with TCP...

Page 49: ...nt to Point Protocol Server to connect the wireless system to serial devices via the RS232 or RS485 serial ports PPP Server enables a network connection to the BU 245U E over a serial cable This is much like dial up internet The maximum serial data rate is 115 200bps Hardware or Software flow control may be selected With minimal configuration on the PC you may use Dial up networking in Windows XP ...

Page 50: ...nt Multicast Serial Gateway functionality is available for both RS 232 and RS 485 ports independently and enables serial data to be routed via the wired or wireless network connection Serial Gateway functionality is similar to radio modem functionality allowing point to point and multipoint serial data transfer The Serial Gateway can be configured as either as Server Client Multicast Group or Modb...

Page 51: ... BU 245U E makes this possible by internally performing the necessary protocol conversion The conversion is always performed by the BU 245U E which is directly connected to the Modbus serial device i e only this module needs to have Modbus TCP to RTU Gateway enabled The above example demonstrates how a Modbus TCP Client Master can connect to one or more Modbus RTU i e serial Slaves In this example...

Page 52: ... on behalf of the remote device making it seem like the device is present on the configured network Alternatively if the IP address selected is not the same as the Ethernet or Wireless IP address routing is used to pass data to the Ethernet and Wireless ports Remote Device IP Address Select the IP address of the remote device Ensure this address is not the same as any other device on the Ethernet ...

Page 53: ...n Port Server Server Only Enter the TCP port number on which the server must listen for incoming connections The standard TELNET port is 23 Remote Device Port Client Client only Enter the TCP port number of the remote server i e the remote port to automatically connect to Remote Device IP Address Client Client only Enter the IP Address of the remote server i e the remote IP Address to Automaticall...

Page 54: ...devices using a multicast address and port i e 224 0 1 1 5000 The Scada then communicates with the remotes via the IP address of the Multicast Manager and the port selected in the configuration i e 5001 Multicast Pipe Manager Enabled Enables or disables the Multicast Pipe manager Server Port Server port used by the Multicast Pipe Manager Will need to be configured the same as the Port on the Clien...

Page 55: ...us TCP to RTU Gateway the BU 245U E can transfer I O to from almost any combination of Modbus TCP or RTU devices The layout of the BU 245U E I O Registers is summarized in the table below Each register is internally saved as a 16 bit unsigned integer value A Modbus transaction may access the entire 16 bit value of any register or alternatively the most significant bit of a register may be accessed...

Page 56: ...rent Modbus Device ID i e Modbus Slave Address to the onboard Modbus TCP Server Up to 32 separate connections to the Modbus TCP Server are supported Modbus RTU serial Master functionality is achieved by combining the Modbus TCP Client Master and Modbus TCP to RTU Gateway Simply specify a Modbus TCP Client Master connection to a Modbus TCP Server where the server is the address of any BU 245U E wit...

Page 57: ...ress of the serial device D while the Server IP Address 192 168 0 200 is the IP Address of unit C since the Modbus TCP to RTU Gateway at unit C converts the Modbus TCP message to Modbus RTU and routes it out the serial port to unit D The third mapping takes the 8 registers read by the second mapping and writes them to the serial unit A The specified Device ID 5 is the Modbus Address of the serial ...

Page 58: ...ed register will be set to 0 if communications is successful 0xFFFF if there is no connection to the specified server or 0xFFxx where xx is the Modbus Exception Code 3 22 Module Information Configuration Module Information Webpage Fields This configuration page is primarily for information purposes With the exception of the password the information entered here is displayed on the home configurati...

Page 59: ...e using the Browse button and when found press Send which will load the file into the module When completed press Reset Firmware upgrade can be done locally or remotely via the radio Reset Resets the module Factory Default Configuration Loads the Factory default configuration and resets CAUTION Doing this will overwrite any current configuration 3 24 TCP Throughput Test The performance of a wirele...

Page 60: ...ver running then you will get the following Error message on the web page Iperf error check connectivity to server Ensure that it has been enabled and the module has been reset Each press of the Measure Throughput button will perform a TCP throughput test of 10 second duration You will see the message Performing Iperf Test text and and if you look at the modules you will see the TX Link RX Led s f...

Page 61: ...y If the Radio Configuration is changed some changes made may cause loss of the radio link and therefore the network connection It is advisable to determine the path of the links to the modules you wish to modify and draw a tree diagram if necessary Modify the modules at the leaves of your tree diagram These will be the furthest away from your connection point in terms of the number of radio or Et...

Page 62: ...ame user and password user Click Network and select Operating Mode as Access Point Select Device Mode as Bridge Change the Gateway IP Address to 192 168 0 1 Change the Ethernet and Wireless IP addresses to 192 168 0 200 Change Ethernet and Wireless Subnet masks to 255 255 255 0 Enter a System Address ESSID string Select the Radio Encryption required Set dipswitch to RUN Save the changes and unit w...

Page 63: ... Configuration Connect straight through Ethernet cable between PC and BU 245U E Ensure configuration PC and BU 245U E are setup to communicate on the same network Set dipswitch to SETUP Power up unit and wait for LINK led to cease flashing Adjust PC network settings Set Configuration PC network card with network setting of IP address 192 168 0 1 netmask 255 255 255 0 Open configuration webpage wit...

Page 64: ...54 102 53 network mask 255 255 255 0 Set the Wireless IP address to 169 254 102 53 network mask 255 255 255 0 Click on button Save to Flash and Reset Webpage will display that message indicating details are being written to flash Wait for BU 245U E to reboot before removing power Extending Range of a Network with a Repeater Hop Configure units as described in Section Extending a wired network Plac...

Page 65: ...gital Output OFF and Input is open circuit The green OK LED on the front panel indicates correct operation of the unit This LED turns red on failure as described above When the OK LED turns red shutdown state is indicated On processor failure or on failure during start up diagnostics the unit shuts down and remains in shutdown until the fault is rectified During Module boot up the OK LED flashes R...

Page 66: ...y Parameters AID Association ID Every Client gets a unique temporary ID from the AP CHAN Channel What radio channel is being used RATE Radio Data Rate RSSI Radio Signal Strength Index Amount of received signal strength BGND Background interference level in dBms The amount of internal noise the radio is able to hear This level does not indicate external radio interference noise level CAPS Capabilit...

Page 67: ... utilization usually 50 or greater Conversely a channel that is quiet will have low channel utilization Channel Survey and Custom Survey can therefore be valuable tools to use when performing site surveys in order to determine the best RF chan nel to use It is also a valuable diagnostics tool for identifying the spare capacity on a given channel as well as possible sources of interference Channel ...

Page 68: ... It will also give a running average for the total number of minutes up to 59 minutes The next screen shot shows the running radio receive noise floor average for each minute up to 59 minutes The Channel Survey page also shows two other screen shots not shown here which indicate the Percent Channel utilization and Noise Floor in one hour intervals The screens will only show the last 24 hour period...

Page 69: ...ved and the amount of other noise that can be heard at the radio Configure what is to be logged on each chart select a time interval and save changes and the charts will then be displayed below the settings Click the button again to manually redraw the graphs Each graph will display a Percent Channel utilization using the selected criteria and time interval Seconds Minutes or Hours Example One Cha...

Page 70: ...to Cooper Bussmann technical support personnel in diagnosing problems with the module Note that when updating the Statistics webpage it is necessary to hold down the ctrl key while pressing the refresh button Otherwise the information will not be updated Network Traffic Analysis There are many devices and PC programs that will analyze performance of an Ethernet network Freely available programs su...

Page 71: ... 5013 AP Only Wireless Adapter wi0 Points to the starting register of the APs Station List First interface wi0 will always start at 5200 and dynamically enter data depending on the number of STA s Remaining interfaces wi1 wi10 will be entered after wi0 data Register 5023 5033 etc will indicate starting location for each interface 5014 STA Only Wireless Adapter wi0 RSSI BGND of Rx message from AP e...

Page 72: ... data packet sent on the interface 4520 Both Transmit frames with antenna 1 TX RX 4522 Both Transmit frames with antenna 2 RX 4524 Both Transmitter antenna switches 4526 Both Transmitter on chip retries 4528 Both Transmit message failed due to too many retries 4530 Both Transmit frames with alternate rate 4532 Both Transmit frames with no ack marked i e broadcast multicast 4534 Both Management fra...

Page 73: ...that can be reliably achieved via the Wireless link There are a number of software tools that we can use to check the data throughput i e FTP file transfer protocol Iperf Qcheck etc The preferred application is Iperf which has been configured in each modem and can be enabled to perform this test It can also be run externally using Laptops at either end of the radio link All of the above applicatio...

Page 74: ...een come up There will be a certain directory specified unique to your own PC with a flashing cursor at the end At the cursor type the word ping leaving a space and the default IP address for the BU 245U E at first start up This command would be written as ping 192 168 0 118 then enter to send the ping command The PC will reply with an acknowledgement of your command and if your BU 245U E is corre...

Page 75: ...using the command ipconfig all Ipconfig lists all of the commands and their usages available for use Arp Displays and modifies the IP to Physical address translation tables used by Address Resolution Protocol ARP Once a remote computer has been pinged this can be used to see the IP address MAC address of the remote computer It will also show any other devices on the network that it may be connecte...

Page 76: ... below Access Point Router Settings Client Bridge Settings Gateway IP 192 168 0 1 Gateway IP 192 168 2 51 Ethernet IP 192 168 0 191 Ethernet IP 192 168 2 50 Subnet Mask 255 255 255 0 Subnet Mask 255 255 255 0 Wireless IP 192 168 2 051 Wireless IP 192 168 2 50 Subnet Mask 255 255 255 0 Subnet Mask 255 255 255 0 In the Network A PC a routing rule is to be set This will allow Network A B to have acce...

Page 77: ...E A 210mA 24Vdc Ethernet Port 10 100 BaseT RJ45 Standard IEEE 802 3 compliant Bridge router Access point client functionality Radio Transceiver Transmit power Model Maximum Power Power may be limited BU 245U E G 1 24 Mb s 400mW 26 dBm by country specific 36 Mb s 250mW 24 dBm configuration 48 Mb s 160mW 22 dBm 54 Mb s 125mW 21 dBm BU 245U E A 6 24 Mb s 400mW 26 dBm 36 Mb s 250mW 24 dBm 48 Mb s 160m...

Page 78: ... parity bits configurable configurable 19200 38400 57600 76800 115200 System Parameters System address ESSID 1 to 31 character text string Wireless data encryption WEP 64bit and 128bit WPA PSK TKIP WPA PSK AES WPA2 PSK AES WPA PSK WPA2 PSK WPA Enterprise User Configuration Via embedded web page via RS232 commands Diagnostics LED s Power OK Ethernet Link Activity 100mb s Radio Link RX Rx Weak Signa...

Page 79: ...ces as much as possible If necessary create a temporary separate radio network to perform the upgrade to remote modules Please refer to the Web based Upgrade section for the upgrade procedure Web Based Upgrade Web based firmware upgrade is available from the System tools page by selecting firmware upgrade Firmware upgrade is performed by uploading a patch file which is specific to the currently in...

Page 80: ... states collision avoidance method rather than collision detection must be used because the standard employs half duplex radios radios capable of transmission or reception but not both simultaneously Unlike conventional wired Ethernet nodes a WLAN station cannot detect a collision while transmitting If a collision occurs the transmitting station will not receive an ACKnowledge packet from the inte...

Page 81: ...so provides communication with the wired network See Ad Hoc and AP I O Input Output The term used to describe any operation program or device that transfers data to or from a computer Internet Appliance A computer that is intended primarily for Internet access is simple to set up and usually does not support installation of third party software These computers generally offer customized web browsi...

Page 82: ...d waits until they have all arrived to forward them as single message 82 www cooperbussmann com BussmannWirelessResources Cooper Bussmann BU 245U E Wireless Ethernet Device Server User Manual Receive Sensitivity The minimum signal strength required to pick up a signal Higher bandwidth connections usually have less receive sensitivity than lower bandwidth connections Router A device that forwards d...

Page 83: ...designed to increase the security of information transferred over the Internet VPN can work with either wired or wireless networks as well as with dial up connections over POTS VPN creates a private encrypted tunnel from the end user s computer through the local wireless network through the Internet all the way to the corporate servers and database WAN Wide Area Network A communication system of c...

Page 84: ...Yes Yes Yes 3 2422 Yes Yes Yes Yes Yes 4 2427 Yes Yes Yes Yes Yes 5 2432 Yes Yes Yes Yes Yes 6 2437 Yes Yes Yes Yes Yes 7 2442 Yes Yes Yes Yes Yes 8 2447 Yes Yes Yes Yes Yes 9 2452 Yes Yes Yes Yes Yes 10 2457 Yes Yes Yes Yes Yes 11 2462 Yes Yes Yes Yes Yes 12 2467 No Yes Yes Yes Yes 13 2472 No Yes Yes Yes Yes 14 2484 No No No 11b only No 802 11b g Turbo Channel Frequency MHz North America Europe A...

Page 85: ...04 5520 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 108 5540 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 112 5560 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 116 5580 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 120 5600 26 dBm 20 dBm n a 20 dBm 24 dBm 124 5620 26 dBm 20 dBm n a 20 dBm 24 dBm 128 5640 26 dBm 20 dBm n a 20 dBm 24 dBm 132 5660 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 136 5680 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 140 5700 26 dB...

Page 86: ...00mW 500mW 100mW 100mW 3 5470 5725 500mW 500mW 250mW 500mW 4 5725 5825 4 W 4 W 4 W All Power levels are shown as EIRP Effective Isotropic Radiated Power dB to mWatt Conversion Watts dBm Watts dBm 10mW 10 dB 200mW 23 dB 13mW 11 dB 316mW 25 dB 16mW 12 dB 398mW 26 dB 20mW 13 dB 500mW 27 dB 25mW 14 dB 630mW 28 dB 32mW 15 dB 800mW 29 dB 40mW 16 dB 1 0 W 30 dB 50mW 17 dB 1 3 W 31 dB 63mW 18 dB 1 6 W 32 ...

Page 87: ...ng link http sourceforge net projects iperf download and save to a location on your PC Extract to zip file to the ROOT directory on your PC i e C This folder contains the main Iperf application as well as the Jperf graphical interface Copy this folder to the 2nd PC or download to the second PC and extract as per above instructions Iperf Applications The Iperf Jperf application needs to be run on t...

Page 88: ...lations in Table 1 you can compare the results with the measured to give an indication of the difference between expected and measured Remembering that the theoretical calculations are best case possible results BU 245U E G BU 245U E A BU 945U E 20Mhz 54Mbps 27Mbps 27Mbps 27Mbps 11Mbps 5Mbps 5Mbps 5Mbps 1Mbps 500Kbps 500Kbps 500Kbps Table 1 In the command line for the Client mapping we established...

Page 89: ... directory and run the Jperf application as shown in Figure 4 The CMD screen will disappear and the Jperf Screen will appear as seen in Figure 5 Figure 4 Figure 5 When Jperf screen appears select Client Mode enter in IP address of the Server PC leave Port as default and press Run Iperf button The test will run again and the Bandwidth Throughput display will show results of the test Note Jperf runs...

Page 90: ...in that everyone understands that there is no warranty for this free software If the software is modified by someone else and passed on we want its recipients to know that what they have is not the original so that any problems introduced by others will not reflect on the original authors reputations Finally any free program is threatened constantly by software patents We wish to avoid the danger ...

Page 91: ... above provided that you also do one of the following a Accompany it with the complete corresponding machine readable source code which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange or b Accompany it with a written offer valid for at least three years to give any third party for a charge no more than your cost of physically perf...

Page 92: ...er this License may add an explicit geographical distribution limitation excluding those countries so that distribution is permitted only in or among countries not thus excluded In such case this License incorporates the limitation as if written in the body of this License 9 The Free Software Foundation may publish revised and or new versions of the General Public License from time to time Such ne...

Page 93: ...www cooperbussmann com BussmannWirelessResources 93 Cooper Bussmann BU 245U E Wireless Ethernet Device Server User Manual 3A1576Rev1 7 ...

Page 94: ... assistance is available to all customers Staffed by degreed engineers this application support is available Monday Friday 8 00 a m 5 00 p m CT Contact s Phone 636 527 1270 s Fax 636 527 1607 s E mail fusetech cooperindustries com s Live Chat www cooperbussmann com Online Resources Visit www cooperbussmann com for the following resources s Product search cross reference s Product technical materia...

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