1. Manuals
  2. Brands
  3. Elpro Technologies Manuals
  4. Modem
  5. 245U-E
  6. User manual

Elpro Technologies 245U-E User Manual

Wireless ethernet modem & device server
Hide thumbs Also See for 245U-E:
Table of Contents

Advertisement

Quick Links

Download this manual
245U-E Wireless Ethernet
Modem & Device Server

User Manual

ELPRO, 9/12 Billabong Street, Stafford QLD, 4053, Australia.
Tel: +61 7 33528600 Fax: +61 7 33528677
Email: sales@elprotech.com
Web: www.elprotech.com
ELPRO Technical Support Help-line America (866) 7134409 Rest of the world +617 3352 8624
Version 1.8.1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 245U-E and is the answer not in the manual?

Questions and answers

Related Manuals for Elpro Technologies 245U-E

Summary of Contents for Elpro Technologies 245U-E

  • Page 1: User Manual

    245U-E Wireless Ethernet Modem & Device Server User Manual ELPRO, 9/12 Billabong Street, Stafford QLD, 4053, Australia. Tel: +61 7 33528600 Fax: +61 7 33528677 Email: sales@elprotech.com Web: www.elprotech.com ELPRO Technical Support Help-line America (866) 7134409 Rest of the world +617 3352 8624...
  • Page 2 User Manual ATTENTION! Incorrect termination of supply wires may cause internal damage and will void warranty. To ensure your 245U-E enjoys a long life, double check ALL your connections with the user manual before turning the power on. CAUTION: To comply with FCC RF Exposure requirements in section 1.1310 of the FCC Rules, antennas used with this device must be installed to provide a separation distance of at least 20 cm from all persons to satisfy RF exposure compliance.

  • Page 3: Fcc Notice

    This device must accept any interference received, including interference that may cause undesired operation. This device must be operated as supplied by ELPRO Technologies. Any changes or modifications made to the device without the written consent of ELPRO Technologies may void the user’s authority to operate the device.

  • Page 4: Important Notice

    Systems should be designed to be tolerant of these operational delays. To avoid the risk of electrocution, the aerial, aerial cable, serial cables and all terminals of the 245U-E module should be electrically protected. To provide maximum surge and lightning protection, the module should be connected to a suitable earth and the aerial, aerial cable, serial cables and the module should be installed as recommended in the Installation Guide.
  • Page 5 ELPRO Technologies is using a part of Free Software code under the GNU General Public License in operating the ―245U-E ‖ product. This General Public License 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.

  • Page 6: Table Of Contents

    Default Configuration ..............................24 Accessing Configuration for the first time ........................24 Method 1 - Set PC to same network as 245U-E ......................25 Method 2 - Set 245U-E Network address to match the local network ................26 ........................ 28 UICK...
  • Page 7 Module Information Webpage Fields ..........................65 3.24 ........................ 66 ONFIGURATION XAMPLES Setting a 245U-E to Factory Default Settings ....................66 Extending a wired network ..........................66 Access Point Configuration ............................66 Client 1 Configuration ..............................66 Client 2 Configuration ..............................66 Connecting two separate networks together ....................
  • Page 8 245U-E Wireless Ethernet User Manual Using Channel Utilisation for Channel Selection or RF Path Testing: ................71 Diagnosing Low Throughput: ............................71 Solutions for High Channel Utilisation: ........................71 ............................73 USTOM URVEY ........................... 75 HROUGHPUT Internal Throughput Test ............................... 75 Throughput and Repeaters ............................

  • Page 9: Chapter 1 Introduction

    See Appendix C for channels selections. The 245U-E unit also provides two serial connections as well as the Ethernet connections. It is possible to use all three data connections concurrently, allowing the 245U-E to act as a Device Server. Wireless connections can be made between serial devices and Ethernet devices.
  • Page 10 Access Point becomes transparent Ethernet link. Client Point The first diagram shows a connection between two Ethernet devices using 245U-E Ethernet modems. In this example one 245U-E is configured as an Access Point and the other as a Ethernet Client. Device Access...
  • Page 11 Chapter One 245U-E Wireless Ethernet Bridge vs Router Each 245U-E is configured with an IP address for the Ethernet side, and another for the wireless side. 192.168.0.72 192.168.0.34 A Bridge connects devices within the same Ethernet network - for example, extending an existing Ethernet Client LAN.

  • Page 12: Getting Started Quickly

     Save the configuration - the 245U-E is now ready to use. Before installing the 245U-E, bench test the system. It is a lot easier to locate problems when the equipment is all together. There are other configuration settings, which may or may not improve the operation of the system. For details on these settings, refer to section 3.0 ―...

  • Page 13: Chapter 2 Installation

    Australia (4W EIRP) and 2km in Europe (100mW EIRP). If using a 245U-E-A (5 GHz) 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 antenna’s, coax as well as radio paths need to be complete line of site (No obstruction what so ever).

  • Page 14: Antenna Diversity

    Example If using the 245U-E-G in the US the radio transmit power level will be 400mA which will allow up to 4 watts EIRP, what this means is that we can add a gain of approximately 10dB (including cable loss) without infringing the EIRP.

  • Page 15: Installation Tips

    The net gain of the antenna/cable configuration is determined by adding the antenna gain and the cable loss. For example, if using the 245U-E-G a 10dBi antenna (7.8dBd) with 10 meters of Cellfoil (-5.6dB) has a net gain of 2.2dB (7.8dB – 5.6dB).

  • Page 16: Dipole And Collinear Antennas

    245U-E Wireless Ethernet User Manual Dipole and Collinear antennas 1 wavelength A dipole or collinear antenna transmits the same Wavelengths amount of radio power in all directions - as such 900 MHz = 330 mm (1') 2.4 GHz = 130 mm (5") that are easy to install and use.

  • Page 17: Power Supply

    245U-E Wireless Ethernet Power Supply The 245U-E module can be powered from a 9 - 30VDC power supply. The power supply should be rated at 1 Amp. The positive side of the supply must not be connected to earth. The supply negative is RS485 connected to the unit case internally.

  • Page 18: Db9 Connector Pinouts

    Ring indicator RS485 Serial Port The RS485 port provides for communication between the 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 RS485 cable may send data at any one time.

  • Page 19: Discrete (Digital) Input/Output

    245U-E Wireless Ethernet Discrete (Digital) Input/Output The 245U-E has one on-board discrete/digital I/O channel. This channel can act as either a discrete input or discrete output. It can be monitored, or set remotely, or alternatively used to output a communications alarm status.

  • Page 20: Chapter 3 Operation

    When an Access Point starts up it will scan all available channels from the selected groups and then select the quietest similar to the 245U-E-G. It will then go into a scan mode for 60 seconds where it listens for any Radar signals.

  • Page 21: How A Link Connection Is Lost

    Selecting a Channel 802.11b/g (2.4GHz) The 245U-E-G conforms to the IEEE 802.11b/g Wireless LAN specification. The 245U-E-G supports 13 x 20MHz, 12 x 10MHz and 13 x 5MHz radio channels in the 2412MHz to 2482MHz frequency range. Channels are country or region specific.
  • Page 22 245U-E Wireless Ethernet User Manual The 20M channels have a separation of 5MHz which means there is some overlap into the next channel, i.e. channel 1 will overlap into channel 2, 3 and 4; channel 6 will overlap into channels 3, 4, 5, 7, 8 and 9. If complete separation is required then you can use channels 1, 6 and 11 without any interference between the channels.

  • Page 23: A (5Ghz)

    802.11a (5GHz) The 245U-E-A utilizes frequency bands within the range of 5.15 GHz and 5.825 GHz. This is broken into 4 distinct U-NII bands and each region (EU, US, AUS, NZ, etc) have their own power and operational constraints, see Appendix C for more details.

  • Page 24: Configuring The Unit For The First Time

    Method 1 - Change your computer settings so that the configuring PC is on the same network as the 245U-E with factory default settings. This is the preferred method and is much less complicated than the second method. You will need a ―straight-through‖...

  • Page 25: Method 1 - Set Pc To Same Network As 245U-E

    245U-E Wireless Ethernet Method 2 - Requires temporarily changing the IP address in the 245U-E via an RS232 connection such that it is accessible on your network without having to change your PC network settings. When connected you can change the modem network settings to match that of your network.

  • Page 26: Method 2 - Set 245U-E Network Address To Match The Local Network

    245U-E is issued by ELPRO and matches the IP address 192.168.0.100. When you first connect to the 245U-E, your web browser will issue a warning that ELPRO is not a trusted authority. Ignore this warning and proceed to the configuration web page. To avoid seeing this warning in future, you can install the certificate into your browser.
  • Page 27 This option may be modified by opening Tools -> Internet Options -> Connections Tab -> LAN Settings- >Proxy Server -> bypass proxy for local addresses.  Enter the IP address for the 245U-E into the Internet Explorer Address bar e.g. http://10.10.0.6 which is the IP address you temporarily configured with the ifconfig command. ...

  • Page 28: Quick Start Configuration

    User Manual Quick Start Configuration The 245U-E has a Quick Start Configuration option, which will cover most important parameters that are needed to get an initial connection. This is the first stage of the module configuration. For most applications, no further configuration is required.

  • Page 29: Network Configuration

    LAN consult the network administrator. A system of 245U-E’s must have at least one Access Point configured as a master with one or more Clients. All 245U-E’s should be given the same System Address (ESSID) and Radio Encryption settings. For further information and examples on wireless network topologies refer section 1.1 ―Network Topology‖...

  • Page 30: Network Settings Webpage Fields

    Configuration of WPA-Enterprise differs when the unit is configured as an Access point (Authenticator) or Client (Supplicant). If WDS interfaces are used, it is possible for one 245U-E to act as both an Authenticator and a Supplicant, however in this situation, only one set of user credentials can be entered for all Supplicants.

  • Page 31: Spanning Tree Algorithm

    The 245U-E is configured with a Bridge Priority of 32768 by default. The intention is to reduce traffic that the 245U-E must handle, by placing it at the branch level in the network tree. As a branch, the 245U-E needs only pass traffic to devices that are its ―leaves‖.

  • Page 32: Compatibility

    AP’s do not. 240U-E Compatibility 245U-E-G modules can communicate with ELPRO 240U-E Ethernet modems however only in certain modes. The following table shows compatible configurations. If communicating with ELPRO 240U-E Ethernet modems the 240U-E’s need to be configured with WDS (4 address mode), not the default ―3-address mode‖...

  • Page 33: Security Menu

    N (Note 2) Notes: Connection only if the 245U-E-G is configured with a virtual Station (Client) which in turn connects to the 240U-E Access Point. Connection indication in the ―connectivity‖ pages however it is not a true connection (see ―3 Address & 4 Address Modes‖...

  • Page 34: Wep (64 Bit) & (128 Bit)

    Passphrase and System Address (ESSID). The Passphrase must be between 8 and 63 characters in length, and the Passphrase must be the same for all 245U-E units in the same system. For optimal security a passphrase consisting of a combination of letters and numbers (i.e.

  • Page 35: Wpa Enterprise - Supplicant Configuration

    Chapter Three 245U-E Wireless Ethernet WPA Enterprise - Supplicant Configuration Username / Password: user credentials that match a valid user on the RADIUS server. Enable Debug: Must only be used during commissioning and only if requested by ELPRO Support. This must be disabled for normal operation.

  • Page 36: Normal Operation

    By default, the 245U-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 forwards all traffic...

  • Page 37: Radio Configuration

    245U-E will attempt to increase to the next highest rate. When a station connects to an access point the two devices negotiate a data rate based which is within configured range of radio data rates for both devices.

  • Page 38: Channel Selection

    Save Changes and Reset Save changes to non-volatile memory and reset module Channel Selection 245U-E-G modem (2.4 GHz 802.11b/g) selection is done by picking one of the channels from the drop down ―Channel‖ list. Normal 20MHz, 5 MHz, 10 MHz or Turbo channels are available depending on country or you can leave it in Auto and let the modem select the best channel.

  • Page 39: Advanced Radio Configuration

    Chapter Three 245U-E Wireless Ethernet If using the Auto mode you will need to select the appropriate groups that you wish to use and the modem will automatically select an available channel from within the selected groups. Note some of the Groups use 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.

  • Page 40: Fixed Noise Floor

    RS232 or RS485 serial ports. PPP Server enables a network connection to the 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.

  • Page 41: Serial Gateway (Server/Client/Multicast)

    Chapter Three 245U-E Wireless Ethernet For the 245U-E, users must configure the local IP address for the 245U-E and the remote device IP address. Some care must be taken in selecting these IP addresses.  If you wish to use routing over this serial network connection, then the IP addresses selected must not lie on Wireless or Wired Ethernet networks already configured into the device.

  • Page 42: Serial Gateway (Modbus - Modbus Rtu To Tcp)

    There are software packages available (i.e. SerialIP Redirector by Tactical Software) that can create a virtual serial port on a PC. This virtual serial port can be configured to connect to a 245U-E serial port. Standard programs can then be used to access this serial port as if it were actually connected to the PC. Alternatively HyperTerminal may be used to connect to a serial port on the 245U-E.

  • Page 43: Serial Menu

    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 the 245U-E Access Point is configured with the ―RS232 Modbus/TCP to RTU Gateway‖ enabled. Once enabled, the gateway converts the Modbus/TCP queries received from the Master into Modbus RTU queries and forwards these over the RS232 port to the Slave.

  • Page 44: Rs-232 / Rs485 Modbus Tcp/Rtu Converter

    245U-E Wireless Ethernet User Manual Client only. Enter the TCP port number of the remote server (i.e. the remote port to Remote Device Port (Client) automatically connect to). Remote Device Client only. Enter the IP Address of the remote server.

  • Page 45: Multicast Pipe Manager

    Chapter Three 245U-E Wireless Ethernet 3.13 Multicast Pipe Manager Previously it has been difficult to connect a single TCP device, i.e. a Scada / DCS system to multiple remote multicast serial devices. Multicast Pipe allows this type of connection. An example would be a Scada system that needs to communicate with multiple remote serial devices. A modem can be placed at each remote location and connected serially to each device.

  • Page 46: Digital Input/Output

    Modbus TCP or RTU devices. The layout of the 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 as a discrete value.
  • Page 47 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 245U-E with Modbus TCP to RTU Gateway enabled. Care should be taken to ensure that the Device ID (i.e. Modbus Address) of the serial device is different to the Device ID of the onboard Modbus TCP Server of the 245U-E that the serial device is connected to.

  • Page 48: Modbus Tcp Configuration On I/O Transfer Menu

    IP Address of the local unit B since the local Modbus TCP to RTU Gateway is to route the message out the serial port to unit A. Since the 245U-E supports Modbus TCP Client and Server simultaneously, the Modbus TCP Server for unit B above could also be enabled. This would allow one (or more) external Modbus TCP Clients anywhere on the extended wired or wireless network to connect to unit B and monitor the status of the I/O registers –...

  • Page 49: Modbus Tcp Client Mappings On I/O Transfer Menu

    Chapter Three 245U-E Wireless Ethernet RSSI & BGND on Rx messages are made available in the diagnostic registers (Section 4.9 ―Internal Diagnostics Modbus Registers‖ for details. For a Hex value of 5F5D the 5D byte = RSSI and the 5F byte = BGND (Convert value from hex to dec and add a ―-―e.g. 5F = -95dB).
  • Page 50 245U-E Wireless Ethernet User Manual Fast Roaming allows a client (station) to roam to an AP with a stronger signal strength without Fast Roaming disrupting communications. Or roam seamlessly between multiple Access Points based on configuration parameters such as RSSI threshold.

  • Page 51: Repeaters (Wds)

    Access Points. Access Point to Access Point communications is also known as Wireless Distribution System (WDS). The 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 optimized throughput.

  • Page 52: Example - Extending Range Using Wds

    245U-E Wireless Ethernet User Manual Router IP and Subnet should be left 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.

  • Page 53: Example - Roaming With Wds Access Points

    Chapter Three 245U-E Wireless Ethernet The WDS configuration for unit B is shown above (this 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.

  • Page 54: Example - Adding Redundancy

    245U-E Wireless Ethernet User Manual Example – Adding Redundancy In the example below, 4 x Access Points (A, B, C, & D) form a mesh network using only WDS bridge interfaces. Each of the Access Points may also have its own clients associated. Each Access Point is configured with a different SSID, meaning the clients associated with each Access Point are fixed.
  • Page 55 Chapter Three 245U-E Wireless Ethernet 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.

  • Page 56: Example - Wds Routed Network

    245U-E Wireless Ethernet User Manual Example – WDS Routed Network An example of using WDS router interfaces to achieve a similar physical topology to the WDS bridge example discussed earlier is illustrated below. Site B 192.168.6.X Access Point Site D SSID_B 192.168.5.3...
  • Page 57 A consequence of using a different network address for the WDS link between Sites B & A and Site B & C, is that we now need to configure routing rules at Sites A, B and C so that the 245U-E’s can determine where to send traffic destined for the other networks.

  • Page 58: Wds Connections

    245U-E Wireless Ethernet User Manual 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.

  • Page 59: Routing

    Routing When a 245U-E receives an IP frame that is destined for an IP address on a different network, it checks if the network address matches the network address of one of its own interfaces (i.e. hard-wired Ethernet, or wireless Ethernet, or WDS) and forwards the frame appropriately.
  • Page 60 The Routing Rules configuration page can be accessed by selecting the ―Routing‖ link on any of the configuration web pages. Up to 30 routing rules may be added to each 245U-E. The table below summarizes the configurable parameters of a routing rule.

  • Page 61: Filtering

    3.19 Filtering When configured as a Bridge, the 245U-E will transmit all broadcast messages appearing at its wired Ethernet port. When the 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.

  • Page 62: Mac Address Filter Configuration

    245U-E Wireless Ethernet User Manual When configuring a Whitelist it is important to add the Addresses of all devices connected to the 245U-E wired Ethernet port, that communicate over the wireless link. It is particularly important to add the Address of the configuration PC to the Whitelist.

  • Page 63: Arp Filter Configuration

    This simplifies network administration, as there is no need to manually configure each device with a separate IP Address. The 245U-E is able to act as a DHCP client. To set the 245U-E to acquire its IP address from a DHCP Server, check the box ―Obtain IP Address Automatically‖...

  • Page 64: Dhcp Server Configuration

    DNS is the system which translates internet names (such as www.elprotech.com) to IP Addresses. The ELPRO 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 IP address to a client unit.

  • Page 65: Module Information Configuration

    Configuration of Username. This is the username used to access the configuration on the Username 245U-E. Take care to remember this username if you change it as it will be needed to access the 245U-E in future. Configuration of Password. This is the password used to access the configuration on the Password 245U-E.

  • Page 66: Configuration Examples

    Access Point Configuration Connect straight through Ethernet cable between PC and 245U-E. Ensure configuration PC and 245U-E are setup to communicate on the same network Set dipswitch to SETUP mode. Power up unit, and wait for the OK LED to cease flashing.

  • Page 67: Connecting Two Separate Networks Together

    MS-DOS command ROUTE. For this example use: ROUTE ADD 169.254.102.0 MASK 255.255.255.0 192.168.0.200 LAN B Configuration All devices on LAN B should be configured so their gateway IP address is that of the 245U-E Access Point as 169.254.102.54 Access Point Configuration ...

  • Page 68: Extending Range Of A Network With A Repeater Hop

    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 245U-E to reboot before removing power. Extending range of a network with a Repeater hop Configure units as described in ―Extending a wired network‖...

  • Page 69: Chapter 4 Diagnostics

    Chapter Four 245U-E Wireless Ethernet Chapter 4 DIAGNOSTICS Diagnostics Chart LED Indicator Condition Meaning GREEN Normal Operation Supply voltage too low. RED Continuously OR Internal Module Fault RED At Power On Boot Loader delay at start-up Fast Flash RED / GREEN...

  • Page 70: Site Survey

    245U-E Wireless Ethernet User Manual Connectivity Parameters Association ID: Every Client gets a unique temporary ID from the AP Channel: What radio channel is being used. CHAN Radio Data Rate: RATE RSSI Radio Signal Strength Index (Amount of received signal strength).

  • Page 71: Channel Survey (Utilisation)

    Chapter Four 245U-E Wireless Ethernet Channel Survey (Utilisation) Channel Utilisation gives a visual display of how busy the current channel is over a given time period. Channel Utilisation is made up of 3 components: transmissions made by this radio; data received by this radio; and noise or interference that this radio can hear.
  • Page 72 245U-E Wireless Ethernet User Manual 1) The connected modem is transmitting. 2) The connected modem is receiving valid data from another modem. 3) The connected modem has detected RF noise or interference. Channel Survey shows the Channel Utilisation and Noise Floor Graph with 1 second, 1 minute and 1 hour periods.

  • Page 73: Custom Survey

    Chapter Four 245U-E Wireless Ethernet The third screen shot shows the average Channel Utilisation for each minute up to one hour. 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.
  • Page 74 245U-E Wireless Ethernet User Manual 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.

  • Page 75: Throughput Test

    Chapter Four 245U-E Wireless Ethernet Throughput Test The performance of a wireless link is best measured in terms of the maximum throughput that can be achieved. The recommended method of measuring throughput is with the "Iperf" utility. Iperf has client and server functionality, where the server waits for a client connection.
  • Page 76 The Iperf throughput result provides an excellent measure of the performance of a radio link. In general, if the results you get are a lot worse than the best case values listed below, this is a certain indication that the radio link has either poor RSSI, or high noise or interference, or both. 245U-E Radio Data Throughput Distance Iperf...

  • Page 77: Throughput And Repeaters

    Chapter Four 245U-E Wireless Ethernet Throughput and Repeaters It should also be noted that if using repeaters to extend the range there will be a reduction in throughput for each repeater hop. The following table shows the drop in throughput for each hop and for each of the channel widths.

  • Page 78: Statistics

    User Manual Statistics The Statistics webpage is used for advanced debugging of 245U-E. This webpage details the state of the 245U-E and performance information. This page is typically useful to ELPRO technical support personnel in diagnosing problems with the module.

  • Page 79: Network Traffic Analysis

    Ethereal provide a simple cost effective means for more advanced analysis. By monitoring traffic on the wired Ethernet, a better idea of regular traffic can be discovered. Network Analysis programs make configuration of a filter for the 245U-E a simple task. System Tools The System Tools Page has a number of tools that help maintain the module firmware and configuration.

  • Page 80: Testing Radio Paths

    245U-E Wireless Ethernet User Manual Testing Radio Paths Connection and Signal Strength The general procedure for radio range testing a link is fairly simple. Configure two units to form a link using automatic radio rates. Install the Access Point at a fixed location. Take a laptop computer and the Client to each of the remote locations, and analyse the link using the Connectivity webpage.
  • Page 81 Chapter Four 245U-E Wireless Ethernet Radio Path Test Settings Enables or disables the Radio Path Test. Enable Radio Path Test RSSI Strong Threshold Strong RSSI indication threshold RSSI Weak Threshold Weak RSSI indication threshold Enable Throughput Test Enables or disables the Throughput test (independent of Radio Path Test (RSSI)

  • Page 82: Remote Configuration

    245U-E. To perform remote configuration, connect a PC to the local module, run Internet Explorer and enter the IP address of the remote unit (or device name if using DNS) - the configuration page of the remote module will be shown and changes can be made.
  • Page 83 Chapter Four 245U-E Wireless Ethernet Wireless Adaptor (wi0) - Link Status Inverted 5011 Both 5012 Both Wireless Adaptor (wi0) - Number Associated Stations for this interface Wireless Adaptor (wi0) - Points to the starting register of the AP's Station List. First...

  • Page 84: Utilities

    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 245U-E at first start-up.

  • Page 85: Ipconfig

    PC. In this example it is the IP address of a PLC connected to the PC also. ”Route” Route is used for the Router function. This is where you are joining 2 different networks together via the 245U-E refer to Section 1.1 man_245UE_V1.8.1.docx...
  • Page 86 User Manual Normally the 245U-E will only accept one routing rule, by using the Default Gateway IP Address on the Main Network Page. If more than one routing rule is needed then a Routing Table is required, e.g. Multiple networks each with a different IP range.

  • Page 87: Chapter 5 Specifications

    Antenna Connector 2 x Female SMA coaxial Two connectors for signal diversity or High gain receive antenna. 1 to 54Mb/s (245U-E-G), Turbo – 108Mb/s ―Auto‖ function determines fastest rate possible Wireless data rate – 6 to 54Mb/s 245U-E-A), Turbo – 108Mb/s...
  • Page 88 245U-E Wireless Ethernet User Manual SYSTEM PARAMETERS System address (ESSID) 1 to 31 character text string Maximum # Clients per AP 127 clients per Access Point Wireless data encryption WEP (64bit and 128bit), WPA-PSK (TKIP), WPA-PSK (AES), WPA2-PSK(AES), WPA-PSK/WPA2-PSK, WPA Enterprise (EAP method - PEAP / MSCHAPv2)

  • Page 89: Appendix Afirmware Upgrade

    Appendix A 245U-E Wireless Ethernet Appendix A FIRMWARE UPGRADE Determine which firmware version is present in the module to be upgraded by viewing the index webpage of the module. Firmware versions 1.0.3 and later may be upgraded via the configuration web pages. This upgrade can be done locally with a PC connected directly to the module, or remotely over a working radio link.

  • Page 90: Appendix Bglossary

    245U-E Wireless Ethernet User Manual Appendix B GLOSSARY Acknowledgment. Access Point An access point connects wireless network stations (or clients) to other stations within the wireless network and also can serve as the point of interconnection between the wireless network and a wired network.
  • Page 91 Appendix B 245U-E Wireless Ethernet encrypts outgoing wireless data. On the receiving side, the same encryption key enables the computer to automatically decrypt the information so it can be read. Encryption keys should be kept secret Firewall A device or computer program that keeps unauthorized users out of a private network. Everything entering or leaving a system's internal network passes through the firewall and must meet the system's security standards in order to be transmitted.
  • Page 92 245U-E Wireless Ethernet User Manual Transmit Power The power usually expressed in mW or dBm that the wireless device transmits at. MAC Address Media Access Control address. A unique code assigned to most forms of networking hardware. The address is permanently assigned to the hardware, so limiting a wireless network's access to hardware -- such as wireless cards -- is a security feature employed by closed wireless networks.
  • Page 93 Appendix B 245U-E Wireless Ethernet distributed over the Internet. VoIP can be less expensive than voice transmission using standard analog packets over POTS (Plain Old Telephone Service). Virtual Private Network. A type of technology designed to increase the security of information transferred over the Internet.

  • Page 94: Appendix C 802.11B/G

    245U-E Wireless Ethernet User Manual Appendix C CHANNELS 802.11b/g Frequency North Most of Channel Europe Australia Japan America world (MHz) 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 2484 .11b only 802.11b/g Turbo Frequency North...

  • Page 95: 802.11A - Maximum Radio Transmitter Power

    Appendix C 245U-E Wireless Ethernet 802.11a – Maximum Radio Transmitter Power Europe max Europe max Australia NZ max USA max Freq Channel TX Power TX Power max TX (MHz) (Master) (Slave) Power Power Power 5180 23 dBm 23 dBm 23 dBm...

  • Page 96: Appendix D 802.11A & Tx Power

    245U-E Wireless Ethernet User Manual Appendix D 802.11a & TX Power EU & Band & Australia New Zealand Frequency South Africa U-NII Frequency No DFS No DFS No DFS No DFS Band (MHz) – – – – 5150-5250 200 mW...

  • Page 97: Appendix Eexternal Iperf Test

    Appendix E 245U-E Wireless Ethernet Appendix E External Iperf Test This Appendix shows how to set up and use the Iperf application to test the throughput of Ethernet Modems. Iperf is a tool used to measure the throughput and quality of a network link. Jperf is used in conjunction with Iperf and displays the Iperf data results graphically.
  • Page 98 245U-E Wireless Ethernet User Manual Figure 2 This will run a test over the Wi-Fi Link to the Server PC and report back results as seen in Figure 3. These results show the Bandwidth (Throughput) of the test as 16.2Mbits/sec.

  • Page 99: Jperf Application

    Appendix E 245U-E Wireless Ethernet JPerf Application Jperf is a graphical interface that runs over the top of Iperf. It will display a graph result from the Iperf test. To run Jperf open a CMD prompt and change to the ―jperf-2.0.2: directory and run the ―Jperf‖ application as shown in Figure 4.

  • Page 100: Appendix Fgnu Free Doc Licence

    245U-E Wireless Ethernet User Manual Appendix F GNU Free Doc Licence Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
  • Page 101 Appendix F 245U-E Wireless Ethernet when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it.

  • Page 102: No Warranty

    245U-E Wireless Ethernet User Manual Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation.

Table of Contents