1. Manuals
  2. Brands
  3. Cooper Bussmann Manuals
  4. Modem
  5. ELPRO 245U-E
  6. User manual

Cooper Bussmann ELPRO 245U-E User Manual

Wireless ethernet modem & device server
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Cooper Bussmann
Read and
245U-E Wireless Ethernet Modem
Retain for
& Device Server
Future
Reference

User Manual

Version 2.19

Advertisement

Table of Contents
loading
Need help?

Need help?

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

Questions and answers

Related Manuals for Cooper Bussmann ELPRO 245U-E

Summary of Contents for Cooper Bussmann ELPRO 245U-E

  • Page 1: User Manual

    Cooper Bussmann Read and 245U-E Wireless Ethernet Modem Retain for & Device Server Future Reference User Manual Version 2.19...

  • Page 2: Fcc Notice

    ATTENTION! Incorrect termination of the supply wires may cause internal damage and will void the warranty. To ensure that your 245U-E enjoys a long life, before turning the power on double-check ALL connections by referring to this User Manual. CAUTION To comply with FCC RF Exposure requirements in section 1.1310 of the FCC Rules, antennas used with this...

  • Page 3: Important Notice

    Systems should be designed to be tolerant of these operational delays. 3. 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 4 Before deploying a system make sure you have considered the security aspects of your installation carefully. Release Notice This is the June 2013 release of the 245U-E Ethernet Modem User Manual version 2.19 which applies to version 2.19 modem firmware. Follow Instructions Read this entire manual and all other publications pertaining to the work to be performed before installing, operating, or servicing this equipment.

  • Page 5: Table Of Contents

    3.16 Roaming ......51 Access Point Startup (245U-E-G) ... . 19 3.17 Repeaters (WDS) .
  • Page 6 JPerf Application ......108 Appendix E - DECLARATION of CONFORMITY . . 109 245U-E-A Declaration of Conformity ...109 245U-E-G Declaration of Conformity ..110 Appendix F - GNU FREE DOCUMENT LICENSE 111 www.cooperbussmann.com/wirelessresources...

  • Page 7: Chapter 1 - Introduction

    1.0 Network Topology The 245U-E is an Ethernet device, and must be configured as part of an Ethernet network. Each 245U-E must be configured as an: • Access Point or Sta, Station, Client • Bridge or Router...

  • Page 8: Access Point Vs. Client

    Ethernet link. Figure 2 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 client. Figure 2 Access Point and Client (Example 1) Figure 3 shows an existing LAN being extended using 245U-Es.

  • Page 9: Bridge Vs. Router

    Figure 4 Repeater An access point could be used as a repeater unit to connect two 245U-E clients that do not have direct reliable radio paths. There is no special repeater module—any 245U-E can be a repeater and at the same time, can be connected to an Ethernet devices or on a LAN.
  • Page 10 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 6 Bridge A router connects devices on different LANs. 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.

  • Page 11: Getting Started Quickly

    The 245U-E is now ready to use. Before installing the 245U-E, bench test the system. It is much 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 more information, refer to “3.0 Startup.”...

  • Page 12: Chapter 2 - Installation

    10 km (6 miles) can be achieved in USA, Canada, and Australia (4 W EIRP) and 2 km in Europe (100 mW 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 (1 W EIRP) and 3 km in Europe (500 mW EIRP), but more care is needed in selecting antennas and coax, and radio paths need to be complete line of site (no obstruction whatsoever).

  • Page 13: Antenna Diversity

    Example • Using the 245U-E with a 10 m (33 ft) Cellfoil coax cable (approximately 6 dB of loss) and an 8-dBi gain antenna would equate to approximately 2 dB of gain, which is well below the 10 dB limit.

  • Page 14: Dipole And Collinear Antennas

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual easily removed. Where antennas are mounted on elevated masts, the masts should be effectively earthed (grounded) to avoid lightning surges. For high lightning risk areas, surge suppression devices between the module and the antenna are recommended.

  • Page 15: Directional Antennas

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

  • Page 16: Serial Connections

    Hardware handshaking using the CTS/RTS lines is provided. The CTS/RTS lines may be used to reflect the status of the local unit’s input buffer. The 245U-E does not support XON/XOFF. Example cable drawings for connection to a DTE host (a PC) or another DCE hosts (or modem) are detailed in Figure 14.

  • Page 17: 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. Because the RS485 communication medium is shared, only one of the units on the RS485 cable may send data at any a time.

  • Page 18: Discrete (Digital) Input/Output

    Figure 16 End Plate 2.4 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, set remotely, or alternatively used to output a communications alarm status.

  • Page 19: Chapter 3 - Operation

    If the modem is configured to use Dynamic Frequency Selection (DFS), it will behave slightly differently than the 245U-E-G because it needs to comply with DFS regulations. 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 20: Roaming Clients

    802.11b/g (2.4 GHz) The 245U-E-G conforms to the IEEE 802.11b/g Wireless LAN specification. The 245U-E-G supports 13 x 20 MHz, 12 x 10 MHz and 13 x 5 MHz radio channels in the 2412 MHz to 2482 MHz frequency range. Channels are country or region specific.

  • Page 21: A (5 Ghz)

    802.11a (5 GHz) 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 (for example, EU, US, AUS, NZ) has their own power and operational constraints.

  • Page 22: Dynamic Frequency Selection

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 21 2.4-GHz Channels The following table shows the US power and operational constraints. Group 1 5.15–5.25 GHz @ 50 mW Group 2 5.25–5.35 GHz @ 250 mW to 1 Watt Group 3 5.47–5.725 GHz...

  • Page 23: Configuring The Unit For The First Time

    Ethernet cable between the PC Ethernet port and the 245U-E. The factory default Ethernet address for the 245U-E is 192.168.0.1XX, where “XX” is the last two digits of the serial number (check the label on the back of the module).
  • Page 24 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 2: Requires temporarily changing the IP address in the 245U-E via an RS232 connection so that it is EThOD 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 25 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 24 TCP/IP Properties 8. Open Internet Explorer and ensure that settings will allow you to connect to the IP address selected. If the PC uses a proxy server, ensure that Internet Explorer will bypass the proxy server for local addresses.
  • Page 26 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 webpage. To avoid seeing this warning in the 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. 8. Enter the IP address for the 245U-E into the Internet Explorer address bar. For example, if you changed the temporary address in step 5 to “10.10.0.6,” you would enter http://10.10.0.6.

  • Page 28: Quick Start Configuration

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 3.3 Quick Start Configuration The 245U-E has a Quick Start Configuration option that covers 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 “1.0 Network Topology.” The 245U-E supports several different radio encryption schemes. If utilizing any form of encryption, all modules in the system that communicate with each other will need the same encryption method and encryption keys.
  • Page 30 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, but in this situation only one set of user credentials can be entered for all Supplicants.

  • Page 31: Spanning Tree Algorithm

    The root node is typically the unit that handles the majority of traffic in the network. By default, the 245U-E is configured with www.cooperbussmann.com/wirelessresources...

  • Page 32: Compatibility

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual a bridge priority of 32768. 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 need only pass traffic to devices that are its leaf nodes.

  • Page 33: Security Menu

    245U-E-G Sta NOTES 1 Connection only if the 245U-E-G is configured with a virtual station (client) which in turn connects to the 240U-E access point. 2 Connection indication in the Connectivity pages, but it is not a true connection (see “3 Address Mode and 4 Address Mode”...

  • Page 34: Default Wep Key

    One of the four keys may be selected as the default key and is used to encrypt transmitted messages from the configured unit. A 245U-E can receive and decrypt a message from a module that has a different default key index as long as each module has the same key configured at the same index.

  • Page 35: Wpa Enterprise - Authenticator (Ap) Configuration

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 33 WPA WPA Enterprise – Authenticator (AP) Configuration Figure 34 WPA Enterprise Authenticator RADIUS Server IP Connection information for the RADIUS authentication server. Address/Port/Shared secret Supplicant Sets the maximum time at which the Supplicant must re-authenticate. This...

  • Page 36: Wpa Enterprise - Supplicant (Client) Configuration

    A bridge connects several Ethernet networks together, and makes them appear as a single Ethernet network to higher protocol layers. 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 between the wired Ethernet port and the wireless port.

  • Page 37: Router Operation (Routed Network)

    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 the configured range of radio data rates for both devices.
  • Page 38 Channel (AP Only) The 245U-E-G radio channels 1 to 13 (depending on country) may be configured at the access point. See “3.1 Selecting a Channel.” The 245U-E -A radio channels can be individually set (access point only; client ignores the selection), or left on Auto (default).

  • Page 39: Channel Selection

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Disable SSID This should be used to prevent unwanted eavesdroppers from detecting the radio broadcast network system address (SSID) by passively listening to beacon transmissions from (AP only) the access point. When disabled, access points will not transmit the system address openly in beacon messages.

  • Page 40: Advanced Radio Configuration

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 3.10 Advanced Radio Configuration Some of the more advanced radio settings have been moved from the normal Radio configuration page in order to simplify the configuration process. Care should be taken when making changes to parameters on this page.

  • Page 41: Fixed Noise Floor

    The 245U-E can be used as a PPP (Point-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 245U-E over a serial cable. This is much like dial-up Internet. The maximum serial data rate is 115,200 bps. Hardware or software flow control may be selected.

  • Page 42: Serial Gateway (Server/Client/Multicast)

    IP address set for the desired port. A process called “proxy ARP” is used to make the device visible on the network. In this process, the 245U-E pretends that it holds the IP address on the network, and responds on behalf of the remote device.

  • Page 43: Serial Gateway (Modbus Rtu To Tcp)

    There are software packages available (such as 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 44: Serial Menu

    The above example demonstrates how a Modbus/TCP client (master) can connect to one or more Modbus RTU (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 45: Rs485 Serial Gateway Mode

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual RS-232 / RS485 Serial Gateway Mode Serial Gateway Mode Server—Module will wait for a connection to be initiated by a remote client. Character Timeout Enter the maximum delay (in msec) between received serial characters before the packet is sent via network.

  • Page 46: Rs485 Modbus Tcp/Rtu Converter

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual RS-232 / RS485 Modbus TCP/RTU Converter Modbus Server TCP Port number used for the Modbus TCP. Standard port is 502. Port Pauses Between Enter the delay between serial request retries, in milliseconds.

  • Page 47: Modbus I/O Transfer

    The Digital I/O channel can be transferred to/from another device using Modbus (see “3.15 Modbus I/O Transfer” below) or it can be configured to provide status of the module communications. If the 245U-E disassociates from another unit (that is, there is no wireless link), you can configure the digital output to turn On (set) or Off (drop).
  • Page 48 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 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. Alternatively, the most significant bit of a register may be accessed as a discrete value.
  • Page 49 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 (Modbus address) of the serial device is different than the device ID of the onboard Modbus TCP server of the 245U-E to which the serial device is connected.
  • Page 50 60 seconds. 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, including the I/O at units A, C, and D.

  • Page 51: Roaming

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Enable Modbus TCP Select this checkbox to enable the onboard Modbus TCP server. All Modbus TCP Server (Slave) connections to the module IP address and specified Modbus server device ID will be routed to the onboard I/O registers.
  • Page 52 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Fast roaming will significantly reduce the time taken for a client to roam from access point to access point. In addition, the discovery of access points is completed before the existing radio link deteriorates, therefore eliminating the periods of poor performance during transition to the next access point.

  • Page 53: Repeaters (Wds)

    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 access point to access point links can be configured for optimized throughput.
  • Page 54 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual IP address configuration (they inherit the IP address of the standard wireless interface). A WDS router interface allows traffic to be routed to an access point on a different network, and therefore requires configuration of an IP address to reflect the network address of the destination network.
  • Page 55 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual SSID / MAC Address AP Mode—Specify the SSID that this virtual access point will use. Stations connecting to this virtual access point use this SSID. Sta Mode—Specify the SSID that this virtual station will use when connecting to other access points.
  • Page 56 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 53 Site B WDS Configuration 1 The WDS configuration for unit B is shown above (this page is accessible via the repeaters link from the configuration webpages). 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 57 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 55 Site B WDS Configuration 2 Example 3: Adding Redundancy In the example below, 4 x access points (A, B, C, and D) form a mesh network using only WDS bridge interfaces.
  • Page 58 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 57 Site B WDS Configuration Figure 58 Site A and D WDS Configuration Encryption levels and key above are shows as being different, but they can be the same as in some of the earlier examples.
  • Page 59 (192.168.5.1 – 192.168.5.254), as opposed to an individual host IP. The same rule specifies the address 192.168.0.3 as the gateway address. The routing rule effectively tells the 245U-E that any traffic destined for the network 192.168.5.X should be forwarded to Site B via WDS link address 192.168.0.3.

  • Page 60: Routing

    3.18 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 (hard-wired Ethernet, or wireless Ethernet, or WDS) and forwards the frame appropriately.

  • Page 61: Filtering

    LAN A). The gateway address will need to be configured as 169.254.109.40 because this is the IP address of the wired side of the LAN B 245U-E. Any message coming in with a 192.168.0.X IP address will be directed across the wireless interface to LAN A.
  • Page 62 Layer 3 Transparent Bridge (refer “3.8 Normal Operation”). A 245U-E client will act as a MAC address translator, as it acts as a MAC address proxy on behalf of devices connected to its wired Ethernet port. The addition of 245U-E client MAC addresses into intermediate 245U-E units’...

  • Page 63: Mac Address Filter Configuration

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 66 Filtering Example NOTE If an erroneous configuration has prevented all access to the module, SETUP mode can be used to restore operation. MAC Address Filter Configuration MAC addresses are uniquely assigned to each device and therefore can be used to permit or deny network access to specific devices through the use of blacklists and whitelists.

  • Page 64: Arp Filter Configuration

    This simplifies network administration because 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, select the option “Obtain IP Address Automatically”...

  • Page 65: Dhcp Server Configuration

    DHCP server, the local and remote 245U-E units can be configured as DHCP clients and receive IP addresses from the server device. Similarly, if a 245U-E is configured as a DHCP server, it can provide IP addresses to DHCP clients—both 245U-E units as well as other connected devices. Configuration items for the DHCP server are listed below.

  • Page 66: Operation

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual • VLAN (Pass-through Mode)—A transparent bridge in which frames are forwarded unmodified. This is the default mode of the modem in which all frames pass transparently through the bridge regardless of whether they are VLAN tagged or untagged.

  • Page 67: Vlan Group

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual addresses will override the modules “IP Address” and “Subnet Mask” and the Device Mode will be changed to “VLAN Bridge.” These changes will be indicated on the Network page of the module. A Management VLAN is created to ensure that the module will be accessible for configuration and diagnostics after setup.

  • Page 68: Interface Membership

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Management IP The management IP is the address of the module if only one VLAN group is configured. Access to the module’s internal Web-based configuration and IP-based functions (such as serial gateway, or Modbus server) is provided via this management IP address and subnet mask.

  • Page 69: Example 2: Multiple Wireless Interfaces

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 69 VLAN Example 1 The module configuration below shows there are two VLAN groups configured. The first group is used for management of the module and ensures a connection is maintained for configuration and diagnostics from untagged devices on the VLAN trunk.
  • Page 70 Ethernet data, so that the Ethernet port becomes a VLAN trunk. Because the 245U-E supports flexible VLAN functionality such that any of the available interfaces can have membership to particular VLAN(s) by assigning membership to one or more VLANs groups—virtually any possible topology can be achieved.
  • Page 71 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 72 Example 2 Configuration The other VLAN groups each have an Ethernet and a wireless interface configured. All Ethernet interfaces are tagged because they are all connected to a VLAN network. Each wireless interface is configured as untagged to allow connection from untagged devices.

  • Page 72: Module Information

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

  • Page 73: Configuration Examples

    Access Point Configuration 1. Connect a straight-through Ethernet cable between the PC and the 245U-E. 2. Ensure that the configuration of the PC and 245U-E are setup to communicate on the same network. 3. Set DIP switch to SETUP mode.

  • Page 74: Connecting Separate Networks

    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 that their gateway IP address is that of the 245U-E access point as 169.254.102.54. www.cooperbussmann.com/wirelessresources...
  • Page 75 Access Point Configuration 1. Connect a straight-through Ethernet cable between the PC and the 245U-E. 2. Ensure that the configuration of the PC and 245U-E are setup to communicate on the same network. 3. Set the DIP switch to SETUP.

  • Page 76: Extending Range Using Repeaters

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Extending Range Using Repeaters Configure units as described in “Extending a Wired Network.” Place the access point at the remote intermediate repeater location. Additional repeaters can be added using Repeaters. See “3.17 Repeaters (WDS).”...

  • Page 77: Chapter 4 - Diagnostics

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4 - DIaGNOSTICS hapTEr 4.0 Diagnostics Chart LED Indicator Condition Meaning Green Normal operation. Red Continuously Supply voltage too low or internal module fault. Red At Power On Boot loader delay at startup.

  • Page 78: Connected Devices

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Connected Devices Figure 78 Connected Devices MAC Address Media Access Control address, which is a unique factory-configured address assigned to the hardware. IP Address IP address assigned to the hardware.

  • Page 79: Channel Survey (Utilization)

    When installing or diagnosing a 245U-E modem, the potential capacity of a given radio channel will be reduced by the existence of these other RF signals on the same channel.
  • Page 80 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual The Channel Survey screen displays a graph showing the percentage of time that a channel is being utilized by any of the following causes: • The connected modem is transmitting.

  • Page 81: Custom Survey

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 82 shows the average Channel Utilization for each minute up to one hour. It will also give a running average for the total number of minutes up to 59 minutes.
  • Page 82 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual By configuring the different chart options, you can get a clear idea of the amount of data being transmitted, received 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.
  • Page 83 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 85 Custom Survey 2 With this sort of outside interference it is recommended to perform the same test but over a longer period so as to get a clearer indication of channel utilization.

  • Page 84: Throughput Test

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4.4 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 85 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 3. Enter the IP address of the remote device that you want to test, and then click Measure Throughput. Figure 89 Iperf The specified IP address must be running Iperf in Server mode. If the remote modem does not have the Iperf server running, you will get the error message “perf error, check connectivity to server.”...

  • Page 86: Throughput And Repeaters

    10000m 10000m 4.5 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 useful to ELPRO technical support in diagnosing problems with the module. NOTE When updating the Statistics webpage, it is necessary to hold down the CTRL key while clicking Refresh, otherwise the information will not be updated.

  • Page 87: Wireless Statistics

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 91 Statistics Wireless Statistics On the Statistics webpage, Wireless Statistics is the main area for additional diagnostics statistics. The list of statistics produced is dynamic and may vary depending on the model and configuration (2.4 GHz, 5 GHz or 900 MHz, and client or access point).

  • Page 88: Client

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Client Beacon Missed The number of beacons (100 msec) the client has missed from the access point. Interrupts TX Failed due to too This is the number of frames that have been lost. Original Message + 7 Retries = 1 many retries TX failed due to too many retires.

  • Page 89: Testing Radio Paths

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4.7 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 analyze the link using the Connectivity webpage.

  • Page 90: Rssi

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Radio Path Test Settings Enable Radio Path Enables or disables the radio path test. Test RSSI Strong Strong RSSI indication threshold. Threshold RSSI Weak Weak RSSI indication threshold. Threshold Enable Throughput Enables or disables the throughput test (independent of radio path test (RSSI).

  • Page 91: Remote Configuration

    245U-E. To perform a 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 appear and changes can be made.

  • Page 92: Internal Diagnostics Modbus Registers

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4.9 Internal Diagnostics Modbus Registers There are a number of internal diagnostic registers that can be accessed via Modbus TCP/RTU that will help with analyzing and diagnosing the radio network. To access these registers, the Modbus server needs to be enabled and a Modbus server address needs to be configured.

  • Page 93: Utilities

    You should see the command screen come up. There will be a certain directory specified (unique to your own PC) with a flashing cursor. 3. At the cursor, type the word “ping” followed by a space and the default IP address for the 245U-E at first startup.
  • Page 94 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 95 ping Command Figure 96 shows the response of the”ping -t 192.168.0.118” command. Figure 96 ping -t Command This -t command is used to repeatedly ping the specified node in the network. To cancel, press CTRL+C.

  • Page 95: Arp

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual ipconfig The “ipconfig” command can be used to show your current TCP/IP information, including your address, DNS server addresses, adapter type and so on. Figure 97 Ipconfig Command In the example above, ipconfig was entered in the command prompt. The reply shows the PC’s IP address, subnet mask and the gateway to which it is connected.

  • Page 96: Route

    245U-E. Refer to “1.1 Getting Started Quickly” for details. 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 (for example, for multiple networks each with a different IP range), a routing table is required.

  • Page 97: Chapter 5 - Specifications

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 5 - SpECIFICaTIONS hapTEr Transmitter/Receiver Frequency 2.412 – 2.472GHz 5.150 – 5.825GHz Transmit Power 15 - 400 mW (Data rate and country specific) Transmission Direct Sequence Spread Spectrum (DSSS)
  • Page 98 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual LED Indication/Diagnostics LED Indication Power/OK; RX; TX/Link; RS232; LAN; RS485; Digital I/O status. Please refer to the product manual for further information. Reported RSSI Measurements (dBm); Connectivity Information/Statistics; System...

  • Page 99: Appendix A - Firmware Upgrade

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual a - FIrMWarE UpGraDE ppENDIx Determine the firmware version 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 webpages. This upgrade can be executed locally with a PC connected directly to the module, or remotely over a working radio link.

  • Page 100: Appendix B - Glossary

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual B - GLOSSarY ppENDIx Message 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 101 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Domain name service (DNS) is a program that translates URLs to IP addresses by accessing a database maintained on a collection of Internet servers. The program works behind the scenes to facilitate surfing the Web with alpha versus numeric addresses. A DNS server converts a name like mywebsite.com to a series of numbers like 107.22.55.26.
  • Page 102 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual ISO Network Model A network model developed by the International Standards Organization (ISO) that consists of seven different levels, or layers. By standardizing these layers, and the interfaces in between, different portions of a given protocol can be modified or changed as technologies advance or systems requirements are altered.
  • Page 103 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Switch A type of hub that efficiently controls the way multiple devices use the same network so that each can operate at optimal performance. A switch acts as a networks traffic cop.

  • Page 104: Appendix C - Channels

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual C - ChaNNELS ppENDIx 802.11b/g Channel Frequency (MHz) North America Europe Australia Japan Most of world 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472 2484 .11b only...
  • Page 105 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Channel Freq (MHz) Europe Max TX Europe Max TX Australia Max NZ Max TX USA Max TX Power (Master) Power (Slave) TX Power Power Power 5700 26 dBm 20 dBm...

  • Page 106: Appendix D - External Iperf Test

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual D - ExTErNaL IpErF TEST ppENDIx 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 107 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual “iperf –c <IP address of Server PC> -w 65535” See Figure 102. Figure 102 iperf –c Command This will run a test over the Wi-Fi link to the server PC and report back results as seen in Figure 103. These results show the bandwidth (throughput) of the test as 16.2 Mbits/sec.

  • Page 108: Jperf Application

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual JPerf Application Jperf is a graphical interface that runs over the top of Iperf. It will display a graph result from the Iperf test. 1. Open a command prompt and change to the jperf-2.0.2: directory and run the Jperf application, as shown in Figure 104.

  • Page 109: Appendix E - Declaration Of Conformity

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual E - DECLaraTION CONFOrMITY ppENDIx 245U-E-A Declaration of Conformity www.cooperbussmann.com/wirelessresources Rev Version 2.19...

  • Page 110: E-G Declaration Of Conformity

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 245U-E-G Declaration of Conformity www.cooperbussmann.com/wirelessresources Rev Version 2.19...

  • Page 111: Appendix F - Gnu Free Document License

    Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual F - GNU FrEE DOCUMENT LICENSE ppENDIx 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 112 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 1. You may copy and distribute verbatim copies of the Program’s source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty;...
  • Page 113 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code.
  • Page 114 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation;...
  • Page 115 Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Notes: www.cooperbussmann.com/wirelessresources Rev Version 2.19...
  • Page 116 ©2013 Cooper Bussmann www.cooperbussmann.com /wireless Your Authorized Cooper Bussmann Distributor is: The trade names and brand names contained herein are valuable trademarks of Cooper Industries in the U.S. and other countries. You are not permitted to use the Cooper Trademarks without the prior written consent of Cooper Industries.

Table of Contents