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ELPRO 905U-E User Manual

Wireless ethernet modem
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DRAFT

User Manual

905U-E Wireless Ethernet
ELPRO Technologies Pty Ltd, 9/12 Billabong Street, Stafford Q 4053, Australia.
Tel: +61 7 33524533 Fax: +61 7 33524577
Email: sales@elprotech.com
Web: www.elprotech.com

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Summary of Contents for ELPRO 905U-E

  • Page 1: User Manual

    DRAFT User Manual 905U-E Wireless Ethernet ELPRO Technologies Pty Ltd, 9/12 Billabong Street, Stafford Q 4053, Australia. Tel: +61 7 33524533 Fax: +61 7 33524577 Email: sales@elprotech.com Web: www.elprotech.com...
  • Page 2 905U -E Wireless Ethernet User Manual Thank you for your selection of the 905U-E Wireless Ethernet Modem. We trust it will give you many years of valuable service. ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty.

  • Page 3: Fcc Notice

    This warranty does not indemnify the purchaser of products for any consequential claim for damages or loss of operations or profits and ELPRO is not liable for any consequential damages or loss of operations or profits resulting from the use of these products. ELPRO is...
  • Page 4 905U -E Wireless Ethernet User Manual Man_905U-E Rev 1.0 Draft Page 4...

  • Page 5: Important Notice

    Like all industrial electronic products, ELPRO products can fail in a variety of modes due to misuse, age, or malfunction. We recommend that users and designers design systems using design techniques intended to prevent personal injury or damage during product operation, and provide failure tolerant systems to prevent personal injury or damage in the event of product failure.

  • Page 6: Table Of Contents

    905U -E Wireless Ethernet User Manual CONTENTS CHAPTER ONE INTRODUCTION ....................................ETWORK OPOLOGY ..................ETTING TARTED UICKLY CHAPTER TWO INSTALLATION................1110 ........................1110 ENERAL ..................1110 NTENNA NSTALLATION 2.2.1 Dipole and Collinear antennas................1312 2.2.2 Yagi antennas.....................1413 ......................1514 OWER UPPLY ....................1514 ERIAL ONNECTIONS 2.4.1 RS232 Serial Port....................1514...
  • Page 7 Contents 4.2.3 Statistics ......................4139 4.2.4 Network Traffic Analysis..................4139 ....................4139 ESTING ADIO ATHS ........................4139 TILITIES 4.4.1 PING........................4139 4.4.2 IPCONFIG.......................4240 4.4.3 ........................4341 4.4.4 ROUTE......................4341 CHAPTER FIVE SPECIFICATIONS................4643 APPENDIX A FIRMWARE UPGRADE.................4744 APPENDIX B GLOSSARY ....................4946 Page 7 © June 2005...

  • Page 8: Introduction

    Ethernet messages on the wireless band at up to 200 Kbit/sec. Network Topology The 905U-E is an Ethernet device, and must be configured as part of an Ethernet network. Each 905U-E must be configured as: an “Access Point” or a “Client”, and a “Bridge”...
  • Page 9 Chapter One Introduction An Access Point could be used as a “Repeater” unit to connect two 905U-E Clients which do not have direct reliable radio paths. Access Point Client Client Ethernet device Bridge vs Router Each 905U-E is configured with an IP address for the Ethernet side, and another for the wireless side.

  • Page 10: Getting Started Quickly

    Power the 905U-E and make an Ethernet connection to your PC (for further information on how to do this, refer to section 3.3) Set the 905U-E address settings as per section 3.4 - also select Access Point / Client and Bridge / Router Save the configuration - the 905U-E is now ready to use.

  • Page 11: Chapter Two Installation

    For example, a group of trees around the antenna is a larger obstruction than a group of trees further away from the antenna. The 905U-E modules provide a diagnostic feature which displays the radio signal strength of transmissions.
  • Page 12 4W ERP) can give distances of more than 60 miles (100km). However antennas will need to be elevated to give line-of-sight. This is a special installation and advice from ELPRO should be sought. Where it is not possible to achieve reliable communications between two 905U modules, then a third 905U module may be used to receive the message and re-transmit it.

  • Page 13: Dipole And Collinear Antennas

    Chapter Two Installation The net gain of the antenna/cable configuration is determined by adding the antenna gain and the cable loss. For example, a 6 element Yagi with 70 feet (20 metres) of Cellfoil has a net gain of 4dB (10dB –...

  • Page 14: Yagi Antennas

    905U-E Wireless Ethernet User Manual 2.2.2 Yagi antennas. A Yagi antenna provides high gain in the forward direction, but lower gain in other directions. This may be used to compensate for coaxial cable loss for installations with marginal radio path.

  • Page 15: Serial Connections

    Power Supply The 905U-E module can be powered from a 10 - 30VDC power supply. The power supply should be rated at 1 Amp and be CSA Certified Class 2. The negative side of the supply should be connected to a good “ground”...

  • Page 16: Rs485 Serial Port

    2.4.2 RS485 Serial Port The RS485 port provides for communication between the 905U-E unit and its host device using a multi- drop cable. Up to 32 devices may be connected in each multi-drop network. Note that the RS485 port is shared internally with the RS232 port - make sure that the RS232 port is disconnected before using the RS485 port.
  • Page 17 Chapter Two Installation HOST 905U-E HOST RS485 CONNECTIONS HOST HOST 905U-E 120 Ω Ω RS485 CONNECTION USING TERMINATING RESISTOR Page 17 © June 2005...
  • Page 18 How a Link connection is lost The 905U-E will reset the Link if: • Excessive retries: When a 905u-E unit transmit a wireless message to another unit, the destination unit will transmit back an acknowledgment. If the source unit does not receive an acknowledgment, it will re-send the message - this is known as a “re-try”.

  • Page 19: Default Configuration

    The Username is always “user” and the default password is “user” for configuration. When powered up with the Factory Default switch in SETUP position, the 905U-E will start with temporary settings of Ethernet IP address 192.168.123.123, subnet mask 255.255.255.0, gateway IP Page 19 ©...

  • Page 20: Configuring The Unit For The First Time

    There are two methods for accessing the configuration inside a 905U-E. The first method requires changing your computer settings so that the configuring PC is on the same network as the 905U-E with factory default settings. This is the preferred method and is much less complicated than the second method.
  • Page 21 Chapter Three Operation • Power up the 905U-E module. • Open “Network Settings” on your PC under Control Panel. The following description is for Windows XP - earlier Windows operating systems have similar settings. • Open “Properties” of Local Area Connection.
  • Page 22 “user” and default password “user”. Configure the unit to your requirements (refer later sections of this manual). When Configuration is complete, switch Factory Default dip-switch on 905U-E to RUN position, and cycle power to resume normal configured operation.

  • Page 23: Serial Cable

    Switch Factory Default dip-switch on 905U-E to SETUP position. b) Connect the RS232 port on the 905U-E to the RS232 port on the PC using a “straight-through” serial cable. c) Open a terminal package (such as Hyperterminal) with 19200bps data rate, 8 data bit, 1 stop, no parity and no flow control.
  • Page 24 This may be performed with the command: bgw <Type the gateway IP address> h) Choose an IP address for the 905U-E being upgraded. This IP address must be on the same network as the computer you have connected the Ethernet cable to. This may be performed with the command: bip <Type the IP address>...
  • Page 25 Operation Configuring Addresses Open Internet Explorer to the IP address set for the 905U-E module. (ie http://xxx.xxx.xxx.xxx/), and select the “Network” menu. When prompted for username and password, enter “user” as the username, and the previously configured password in the password field.
  • Page 26 IP address you require. Wireless IP Address The IP address of the 905U-E on the wireless port. If the unit is configured as a bridge this address must be the same as the Ethernet IP address. If configured as a router, the IP address must be different from the Ethernet IP Address - it must be consistent with the LAN it is connecting to on the wired side.
  • Page 27 Bridges are typically used to connect sections of the same IP network together. By default, the 905U-E is configured as a transparent bridge. When a transparent bridge is started, it learns the location of other devices by monitoring the source address of all incoming traffic. Initially it...

  • Page 28: Radio Configuration

    The 905U-E has one routing rule which may be configured. This routing rule is the gateway address. The 905U-E will direct all unknown IP network traffic to this gateway IP address.
  • Page 29 Fade Margin When automatic rate is selected, the 905U-E chooses a rate based on the received signal strength of transmissions. The Fade Margin value is used This is the difference (in by the 905U-E to determine when to change data rates.

  • Page 30: Spanning Tree Algorithm

    The default value is 0. Fragmentation Threshold This selects the maximum number of bytes that will be transmitted in one message. If more than this number of bytes is input into the 905U-E, the The maximum transmission module will transmit more than one message.

  • Page 31: M Essage F Iltering

    905U-E is configured with a Bridge Priority of (255) by default. The intention is reduce traffic that the 905U-E must handle, by placing it at the branch level in the network tree. As a branch, the 905U-E needs only pass traffic to devices that are its “leaves”.
  • Page 32 905U-E Wireless Ethernet User Manual you configure a Blacklist, the 905U-E will accept messages from all devices except for the Blacklist devices. When configuring a Whitelist, additional care must be taken, as it is more difficult to configure than a Blacklist.

  • Page 33: Serial Port 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 root webpage of the 905U-E. Password When changing the password on this screen, it will be sent unencrypted over any wired network.

  • Page 34: E Xamples

    Connect straight through Ethernet cable between PC and 905U-E. • Ensure configuration PC and 905U-E are setup to communicate on the same network • Set 905U-E to start with factory default settings. Refer to section Setting a 905U-E to Factory Default Settings.
  • Page 35 Client 1 Configuration Perform the same configuration steps as the Access Point configuration with the following differences: • At step d) in Option B, set IP address of 905U-E to 192.168.0.201 with command bip 192.168.0.201 • At step h) in Option B, open configuration webpage with Internet Explorer at address http://192.168.0.201/...
  • Page 36 905U-E Wireless Ethernet User Manual • At step h) in Option B, open configuration webpage with Internet Explorer at address http://192.168.0.202/ • At step k), set the Operating Mode to Client. • At step n), set the Ethernet IP address to 192.168.0.202, network mask 255.255.255.0 •...

  • Page 37: Connecting Two Separate Networks Together

    On PCs, this may be achieved with the MS-DOS command ROUTE. For this example use: ROUTE ADD 192.168.0.50.0 MASK 255.255.255.0 192.168.0.200 Network B Configuration All devices on Network B should be configured so their gateway IP address is that of the 905U-E Access Point as 192,168.50.200. Access Point Configuration •...
  • Page 38 Client Configuration Perform the same configuration steps as the Access Point configuration with the following differences: • At step d) in Option B, set IP address of 905U-E to 192.168.0.201 with command bip 192.168.0.201 • At step h) in Option B, open configuration webpage with Internet Explorer at address http://192.168.0.201/...

  • Page 39: Extending Range Of A Network With A Repeater Hop

    Chapter Three Operation Extending range of a network with a Repeater hop 192.168.0.0 255.255.255.0 Access Point Client 2 Client 1 Configure units as described in Section Extending a wired network. Place the Access Point at the remote intermediate repeater location. Page 39 ©...

  • Page 40: Upply

    The “Monitor Communications” function buffers the last 30 transmissions since the last enquiry was made. If there have not been 30 transmissions since the last enquiry, the 905U-E will wait 5 seconds for further transmissions to occur before completing the webpage. Use of this feature together with the Connectivity webpage will reveal the variability of communications over a link.

  • Page 41: Testing Radio Paths

    Chapter Four Diagnostics 4.2.3 Statistics The Statistics webpage is used for advanced debugging of 905U-E. This webpage details the state of the 905U-E and its performance in the system. 4.2.4 Network Traffic Analysis There are many devices and PC programs that will analyze performance of a Ethernet network. Freely available programs such as Ethereal provide a simple cost effective means for more advanced analysis.
  • Page 42 905U-E Wireless Ethernet User Manual Set Don't Fragment flag in packet. -i TTL Time To Live. -v TOS Type Of Service. -r count Record route for count hops. -s count Timestamp for count hops. -j host-list Loose source route along host-list.
  • Page 43 Chapter Four Diagnostics > ipconfig /renew ... renew all adapters > ipconfig /renew EL* ... renew adapters named EL..> ipconfig /release *ELINK?21* ... release all matching adapters, eg. ELINK-21, myELELINKi21adapter. 4.4.3 ARP Displays and modifies the IP-to-Physical address translation tables used by address resolution protocol (ARP).
  • Page 44 905U-E Wireless Ethernet User Manual [MASK netmask] [gateway] [METRIC metric] [IF interface] Clears the routing tables of all gateway entries. If this is used in conjunction with one of the commands, the tables are cleared prior to running the command.
  • Page 45 Chapter Four Diagnostics destination^ ^mask ^gateway metric^ ^ Interface^ If IF is not given, it tries to find the best interface for a given gateway. > route PRINT > route PRINT 157* ..Only prints those matching 157* > route DELETE 157.0.0.0 >...

  • Page 46: Specifications

    905U-E Wireless Ethernet User Manual Chapter Five SPECIFICATIONS Man_905U-E Rev 1.0 Draft Page 46...
  • Page 47 <Type the gateway IP address> 12. Note address set for Boot IP address. Choose an IP address for the 905U-E being upgraded. This IP address must be on the same network as the computer you have connected the Ethernet cable to.
  • Page 48 16. Program the new Bootloader firmware to the module with the command: flash /tftp/epm_E900P_x.x.bin.gz where epm_E900P_x.x.bin.gz is the filename of the new firmware. 17. After programming the new Bootloader the unit will reset. The 905U-E now has new firmware programmed. Man_905U-E Rev 1.0 Draft...

  • Page 49: Appendix B Glossary

    Appendix B Glossary Appendix B GLOSSARY Acknowledgment. Access point An access point is the connection that ties wireless communication devices into a network. Also known as a base station, the access point is usually connected to a wired network. Antenna Gain Antennae don't increase the transmission power, but focus the signal more.
  • Page 50 905U-E Wireless Ethernet User Manual retransmit after a random time delay. DHCP A utility that enables a server to dynamically assign IP addresses from a predefined list and limit their time of use so that they can be reassigned. Without DHCP, an IT Manager would have to manually enter in all the IP addresses of all the computers on the network.
  • Page 51 Appendix B Glossary IEEE Institute of Electrical and Electronics Engineers, New York, www.ieee.org. A membership organization that includes engineers, scientists and students in electronics and allied fields. It has more than 300,000 members and is involved with setting standards for computers and communications. Infrastructure A client setting providing connectivity to an AP.

  • Page 52: Data

    905U-E Wireless Ethernet User Manual common anymore. ISDN A type of broadband Internet connection that provides digital service from the customer's premises to the dial-up telephone network. ISDN uses standard POTS copper wiring to deliver voice, data or video. ISO Network...

  • Page 53: O Peration

    Appendix B Glossary network cable to provide two-way communication between the computer and network devices such as a hub or switch. Most office wired NICs operate at 10 Mbps (Ethernet), 100 Mbps (Fast Ethernet) or 10/100 Mbps dual speed. High- speed Gigabit and 10 Gigabit NIC cards are also available.
  • Page 54 905U-E Wireless Ethernet User Manual For example, when a web page is downloaded from a web server, the TCP program layer in that server divides the file into packets, numbers the packets, and then forwards them individually to the IP program layer. Although each packet has the same destination IP address, it may get routed differently through the network.

  • Page 55: Ping

    Appendix B Glossary Ad-Hoc Mode A client setting that provides independent peer-to-peer connectivity in a wireless LAN. Also see Infrastructure Mode. AH Authentication Header. A field that follows the IP header in an IP datagram and provides authentication and integrity checking for the datagram. ARP Address Resolution Protocol.
  • Page 56 905U-E Wireless Ethernet User Manual PPP Point-to-Point Protocol. PPP Provides a standard method for transporting multi-protocol datagrams over point-to-point links. Sniffer A program to capture data from a computer network. SNMP Simple Network Management Protocol (also see TCP/IP). SSID Service Set Identifier - wireless network name.

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