Cooper Bussmann Read and Retain for Future Reference 245U-E Wireless Ethernet Modem & Device Server User Manual Version 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual UL Notice 1. The Wireless Ethernet module is to be installed by trained personnel or licensed electricians only, and installation must be carried out in accordance with the instructions listed in the Installation Guide and applicable local regulatory codes. 2. The units are intended for Restricted Access Locations. 3. The Wireless Ethernet module is intended to be installed in a final enclosure, rated IP54, before use outdoors. 4.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual may start without warning. Isolate at the switchboard before attempting adjustments.” 5. The 245U-E module is not suitable for use in explosive environments without additional protection. 6. The 245U-E operates using the same radio frequencies and communication protocols as commercially available off-the shelf equipment.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual CONTENTS Chapter 1 - INTRODUCTION. . . . . . . . . . . . . . . . . . . 7 1.0 Network Topology. . . . . . . . . . . . . . . . . . . . . . . . 7 Access Point vs. Client. . . . . . . . . . . . . . . . . . . . . . 8 Bridge vs. Router. . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1 Getting Started Quickly. . . . . . . . . . . . . . . . . . . 11 Chapter 2 - INSTALLATION. . . . . . . . . . . . . . . . . . . 12 2.0 General. . . .
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4.2 Channel Survey (Utilization). . . . . . . . . . . . . . . . 79 Channel Utilization on a Live System. . . . . . . . . . 79 Channel Utilization for Channel Selection or RF Path Testing. . . . . . . . . . . . . . . . . . . . . . . . 79 Diagnosing Low Throughput . . . . . . . . . . . . . . . . 79 Solutions for High Channel Utilization. . . . . . . . . 79 4.3 Custom Survey . . . . . . . . . . . . . . . . . . . . . . . . . 81 4.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Chapter 1 - INTRODUCTION The 245U-E Wireless Ethernet Modem and Device Server is an industrial 802.11-compliant module that provides wireless connections between Ethernet devices and/or Ethernet wired networks (LANs). The 245U-E is available in two models with different RF power and frequency options suitable for your country’s local radio regulations. The models comply with their relevant IEEE 802.11 standard. 245U-E-G 802.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 1 Network Topology Access Point vs. Client The access point unit acts as the wireless master unit. The access point accepts and authorizes links initiated by client units, and controls the wireless communications. Clients (Stations) are slave units and when connected to the access point becomes transparent Ethernet link. Figure 2 shows a connection between two Ethernet devices using 245U-E Ethernet modems.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 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. Figure 5 Multiple Repeaters Multiple access points can be set up in a mesh network to provide multiple repeaters. Bridge vs.
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. Alternatively, the access point could be configured as a router. The wireless link is then part of LAN B.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 9 Router 1.1 Getting Started Quickly Most applications for the 245U-E require little configuration. The 245U-E has many sophisticated features, but if you do not require these features this section will enable you to configure the units quickly. To get started quickly: 1. First, read “Chapter 2 - INSTALLATION.” The 245U-E requires an antenna and a power supply. 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Chapter 2 - INSTALLATION 2.0 General The 245U-E modules are housed in a rugged aluminum case suitable for DIN-rail mounting. Terminals will accept wires up to 2.5 mm2 (12 gauge) in size. All connections to the module must be SELV (Safety Extra Low Voltage). Normal 110-250 V mains supply must not be connected to any terminal of the 245U-E module. See “2.2 Power Supply.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Antenna Diversity One reason to use multi-antennas is to comply with local radio licensing regulations. All countries have a limit on the amount of transmitted power and radiated power from the antenna. In the US this is 400-millwatts transmit power and 4-watts EIRP (effective isotropic radiated power). See “3.
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. If the antenna is not already shielded from lightning strike by an adjacent earthed/grounded structure, a lightning rod may be installed above the antenna to provide shielding.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Directional Antennas Directional antennas can be any of the following: • Yagi antenna with a main beam and orthogonal elements. • Directional radome, which is cylindrical in shape. • Parabolic antenna. A directional antenna provides high gain in the forward direction, but lower gain in other directions. This type of antenna may be used to compensate for coaxial cable loss for installations with marginal radio path.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 13 Power Supply The power requirements of the 245U-E unit are shown in the following table. 245U-E-G 245U-E-A Voltage 12 Vdc 24 Vdc 12 Vdc 24 Vdc Quiescent 290 mA 150 mA 300 mA 160 mA TX @100 mW 310 mA 170 mA 370 mA 190 mA TX @ 400 mW 340 mA 180 mA 410 mA 210 mA A ground terminal is provided on the back of the module.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual DB9 Connector Pinouts Pin Name Direction Function 1 DCD Out Data Carrier Detect 2 RD Out Transmit Data – Serial Data Output (from DCE to DTE) 3 TD In Receive Data – Serial Data Input (from DTE to DCE) 4 DTR In Data Terminal Ready 5 SG — Signal Ground 6 DSR Out Data Set Ready - always high when unit is powered on.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Chapter 3 - OPERATION 3.0 Startup Access Point Startup (245U-E-G) When an access point unit starts up, it checks if the channel selection is set to “Auto.” If it is, the access point will scan all available channels, pick the quietest then begin transmitting periodic messages, called beacons. If the access point is configured with a fixed channel, it will immediately begin sending beacons on the configured channel.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual is dropped. Whenever a client is not connected to an access point, it will cyclically scan all available channels for a suitable access point. Roaming Clients Clients can roam within a system, but if the link to the access point fails or the radio signal level becomes too weak it will scan for beacons and connect to an access point (provided the SSID and any encryption methods, keys are compatible).
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 19 Channel Separation Only one of these channels is used at a time and is configured at the access point, The access point then uses this channel to send out beacon transmissions and connections. Clients scan all channels for a suitable access point and then adopt the same channel as the access point when a connection is established. Figure 20 shows the RF energy distribution for the 802.11b/g transmission. Figure 20 2.
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 @ 250 mW to 1 Watt Group 4 5.725–5.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual When DFS is enabled, the access point (master device) goes through the following steps: 1. The master device that initiates communications selects a channel and monitors that channel for potential radar interference for a minimum listening time of 60 seconds (channel availability check time). No transmissions can occur during this period. 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Method 2: Requires temporarily changing the IP address in the 245U-E via an RS232 connection so 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. Method 1 – Set PC to Same Network as 245U-E 1. Connect the Ethernet cable between the module and the PC configuring the module. 2.
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. This option may be modified by opening Tools -> Internet Options -> Connections Tab -> LAN Settings->Proxy Server -> bypass proxy for local addresses. 9.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 25 Main Screen 11. To resume normal configured operation when configuration is complete, switch the factory default DIP switch on the 245U-E to RUN and cycle power. NOTE Security Certificates. Configuration of the 245U-E uses an encrypted link (https). The security certificate used by the 245U-E is issued by ELPRO and matches the IP address 192.168.0.100.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 26 Dragon For example: eth0 Link encap:Ethernet HWaddr 00:12:AF:FF:FF:FF inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU: 1500 Metric: 1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:256 5. Temporarily change the IP address to one that will enable connection to your local network.
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. For more advanced applications, additional parameters can be changed via the normal Configuration pages after the Quick Start configuration has been saved.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 28 Network The Network Configuration page allows configuration of parameters related to the wired and wireless Ethernet interfaces. In general, IP address selection will be dependent upon the connected wired Ethernet device(s). Before connecting to an existing LAN consult the network administrator. Default configuration of the module will be “Client” and “Bridge.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual An 802.1x capable RADIUS server may already be deployed in a large scale network environment. The 245U-E can make use of this server reducing replication of user authentication information. In a typical WPA-enterprise setup, the 245U-E access point acts as Authenticator, controlling access to the network. Wireless clients (245U-Es, laptops or other devices) act as Supplicants, requesting access to the network.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual IP Address Bridge Mode—The IP address of the 245U-E module. Both wired (Ethernet Interface) port and wireless (Wireless Interface) ports will take on this address. Router Mode—Separate IP addresses are required for each interface. IP addresses must be different. IP Subnet Mask The IP network mask of the 245U-E module. This should be set to the appropriate subnet mask for your system (typically, 255.255.255.0).
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. There is some overhead in maintaining a network utilizing the Spanning Tree Algorithm. Users wishing to increase their throughput at the expense of redundancy should disable Spanning Tree.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 30 Compatibility 245U-E-G AP 245U-E-G Sta 245U-E-G AP 245U-E-G Sta 240U-E AP (4Add) 240U-E CL (4Add) 240U-E AP (3Add) 240U-E CL (3Add) Y Y Y(1) Y N Y N/A N(2) N/A Y Y Y 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 32 WEP 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. Open or Shared Authentication Mode WEP keys must be entered as pairs of hexadecimal digits separated by colons.
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 Address/Port/Shared secret Connection information for the RADIUS authentication server. Supplicant Re-authenticate Period Sets the maximum time at which the Supplicant must re-authenticate.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual WPA Enterprise – Supplicant (Client) Configuration Figure 35 WPA Enterprise Supplicant 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 technical support. This must be disabled for normal operation. Trusted CA certificate Upload the certificate of the issuer of the RADIUS server’s certificate.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Router Operation (Routed Network) A router joins separate IP sub-networks together. The router has different IP addresses on its wired and wireless ports, reflecting the different IP addresses of the separate Ethernet networks. All of the devices in these separate networks identify the router by IP address as their gateway to the other network.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Radio Mode The 245U-E -G supports 802.11b and 802.11g radio standards. To limit operation to one or the other, select the desired standard. Normally, selecting “Auto” allows the modem to make the best choice. The 245U-E -A only supports the 802.11a radio standard. Transmit Power Level This allows adjustment of the radio power. Do not set the radio power above the allowed setting for your country.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Disable SSID broadcast (AP only) This should be used to prevent unwanted eavesdroppers from detecting the radio network system address (SSID) by passively listening to beacon transmissions from the access point. When disabled, access points will not transmit the system address openly in beacon messages. This is particularly useful in unencrypted radio networks. 3 Address Mode Allows compatibility with Layer 3 Bridge devices.
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. Figure 39 Advanced Radio TX Antenna Select the antenna port that the module will use for transmissions: Main Port Only—Messages are transmitted from the main TX/RX port.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Interference Mitigation (Access point only.) Interference Mitigation should only be turn on (default is off) if using demo whip antennas or if there is a high level of background interference. By enabling this option, the radio will dynamically adjust the radio parameters to help mitigate interference based on any background interference.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual • If you want the serial device visible as present on the wireless or wired network, the local IP address must be the same as the 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual With the serial gateway server, client, and multicast functions it is possible for serial data from a 245U-E to be transferred to any other 245U-E serial ports including the corresponding port on the same 245U-E. Serial Gateway (Modbus RTU to TCP) When configured as Modbus, the module will allow a serial Modbus client (master) to connect with a single Ethernet Modbus TCP server (slave).
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 41 Modbus/TCP Client to Modbus RTU Slaves 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.
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. Packet Size The number of received bytes that will be buffered before a packet is sent via the network. Listen Port (Server) Server only.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual RS-232 / RS485 Modbus TCP/RTU Converter Modbus Server TCP Port Port number used for the Modbus TCP. Standard port is 502. Pauses Between Requests Enter the delay between serial request retries, in milliseconds. Response Timeout Enter the serial response timeout, in milliseconds. A serial retry will be sent if a response is not received within this timeout period. Connection Timeout Enter the TCP connection timeout in seconds.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 43 Multicast Group Enabled Enables or disables the multicast pipe manager. Server Port Server port used by the multicast pipe manager. Will need to be configured the same as the port on the client (for example, SCADA or DCS). Multicast Group IP Address Broadcast address used when communicating to all other multicast devices. This address will need to be the same on all communicating multicast devices.
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 45 Modbus TCP All Modbus transactions routed to the onboard Modbus TCP server are directed to and from the onboard general purpose I/O registers. The Modbus TCP server is shared with the Modbus TCP to RTU gateway, so that the Modbus device ID is used to determine if a Modbus transaction is to be routed to the onboard Modbus TCP server or to a Modbus RTU device connected to the serial port.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 47 Modbus Mappings for Unit B Unit C is configured with Modbus TCP server enabled and device ID set to 1, so that the Modbus TCP client at unit B can connect and read the status of the onboard digital input. Unit C also has the Modbus TCP to RTU gateway enabled (see “RS-232 / RS485 Modbus TCP/RTU Converter”) so that the Modbus TCP client at unit B can communicate with the serial Modbus RTU device D.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Enable Modbus TCP Server (Slave) Select this checkbox to enable the onboard Modbus TCP server. All Modbus TCP connections to the module IP address and specified Modbus server device ID will be routed to the onboard I/O registers. Modbus Server Device ID Specify the Modbus device ID for the onboard Modbus TCP server. Allowed values are 0 to 255.
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. Figure 49 Roaming The following settings/thresholds can be configured to fine tune the fast roaming process.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual During the background scan, a client will scan all of the channels in the scan list to identify better access points. If no channels are configured it will scan all channels. Figure 50 Scan List The configuration in Figure 50 shows that the client will start scanning when the RSSI of its current connection to the access point falls below -90 dBm.
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.
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. Point-to-Point Mode—Specify the MAC address of an access point with which a fixed link will be established. Usually only required for third-party devices.
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.
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. Each of the access points may also have its own associated clients. Each access point is configured with a different SSID, which means that the clients associated with each access point are fixed.
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. One reason why the encryption level and key would be different is that the access point may have clients that communicate using a different encryption method (such as 128-bit WEP) and may not support the same encryption method.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Each modem has a different SSID. This is done to limit broadcast traffic and to route data only were it needs to go. Site B has two virtual client WDS links configured—one to Site A’s access point, and one to Site C’s access point. Figure 60 shows the WDS connections at Site B. Figure 60 Site B WDS Connections • The first entry configures a virtual WDS client connection from Site B to the access point at Site A.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 62 Gateway Address 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual destination IP address is 0, it specifies a network address. Consequently, any traffic received at the access point with destination IP address 169.254.109.x (where x is any host ID) will be forwarded to the 245U-E at LAN B.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 65 Filtering The filter operates on the following rules: • The MAC address filter is always checked before the IP address filter. • If a message matches a MAC filter entry, it will not be subsequently processed by the IP filter. If the MAC filter list is a whitelist, the message will be accepted. If the MAC filter list is a blacklist, the message will be dropped.
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Select “Blacklist” or “Whitelist” Blacklist will prevent all listed devices from accessing the module and using the radio link. Whitelist will allow devices with the IP addresses listed to communicate with the module and utilize the radio link. All other devices are blocked. Add Entry Add a row to the table of IP address filter rules. Delete Entry Delete the currently selected IP address filter rule.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 3.21 DHCP Server Configuration The 245U-E is able to act as a DHCP server, supplying IP addresses automatically to other DHCP client devices. Note that the 245U-E units need to act in conjunction with their connected devices. If a connected device is a DHCP server, the local and remote 245U-E units can be configured as DHCP clients and receive IP addresses from the server device.
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. This is the most common VLAN mode and requires no VLAN configuration at all.
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. If more than one interface is added to a VLAN group, a separate bridge will be created for the VLAN group.
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. NOTE If only one VLAN group is configured, it must have a management IP and netmask.
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 71 VLAN Example 2 The module is configured with three wireless interfaces. The first one is the normal wireless interface found on the Network page (wi0), the second (wi1) and third (wi2) are virtual interfaces created on the Repeaters page. Each interface is configured as an access point and can be setup with unique SSIDs and encryption settings.
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Figure 73 VLAN Encryption. VLAN groups 3 and 4 are similarly bridging their wireless interfaces, but they are using virtual modules that are configured on the Repeaters page. WDS repeater #1 and WDS repeater #2 are being bridged to VLAN ID 20 and VLAN ID 30 respectively. Configuration for these wireless bridges is set from the Repeaters page (see the example in Figure 74).
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Owner Owner name. Contact Owner contact information (such as phone number and email address). Description Description of the purpose of the unit. Location Location of the 245U-E. 3.25 Configuration Examples Setting a 245U-E to Factory Default Settings 1. Access the Configuration webpage on the 245U-E. For details, see “3.2 Configuring the Unit for the First Time.” 2. Click the System Tools menu item. 3.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 10. Set the Device Mode as “Bridge.” 11. Change the Gateway IP Address to 192.168.0.1. 12. Change the Ethernet and Wireless IP addresses to 192.168.0.200. 13. Change the Ethernet and Wireless Subnet masks to 255.255.255.0. 14. Enter a System Address (ESSID) string. 15. Select the radio encryption required. 16. Set DIP switch to RUN. 17. Save the changes and unit will restart with new settings.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 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. 4. Power up the unit, and wait for the LINK LED to stop flashing. 5. Adjust the PC network settings. 6. Set the Configuration PC network card with the network setting of IP address 192.168.0.
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).” Figure 77 Example Repeaters 76 www.cooperbussmann.com/wirelessresources Rev Version 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Chapter 4 - DIAGNOSTICS 4.0 Diagnostics Chart LED Indicator Condition Meaning OK Green Normal operation. OK Red Continuously Supply voltage too low or internal module fault. OK Red At Power On Boot loader delay at startup. OK Fast Flash Red / Green Module boot sequence. OK Slow Flash Red / Green Module boot sequence. Radio RX Green flash Radio receiving data.
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. AID Association ID. Every client gets a unique temporary ID from the access point. CHAN The radio channel being used. RATE Radio data rate. RSSI Radio signal strength index (the amount of received signal strength).
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 4.2 Channel Survey (Utilization) Channel utilization gives a visual display of how busy the current channel is over a given time period. Channel utilization is made up of three components—transmissions made by this radio, data received by this radio, and noise or interference that this radio can hear. These three components may also be viewed individually on the Custom Survey page.
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. • The connected modem is receiving valid data from another modem. • The connected modem has detected RF noise or interference. The Channel Survey shows the channel utilization and noise floor graph with 1-second, 1-minute and 1-hour periods.
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. Figure 82 Channel Utilization Minutes Figure 83 shows the running radio receive noise floor average for each minute up to 59 minutes.
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. Click the button again to manually redraw the graphs.
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. Figure 86 Channel Utilization Rev Version 2.19 www.cooperbussmann.
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.
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.” Ensure that it has been enabled and reset the module.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 245U-E Radio Data Throughput Distance Iperf 20 MHz 10 MHz 5 MHz 1000 m Internal 10.5 Mbps 7.5 Mbps 5. Mbps 1000 m External 16. Mbps 10.5 Mbps 6. Mbps 3000 m Internal 10. Mbps 7. Mbps 4.7 Mbps 3000 m External 15. Mbps 9. Mbps 6. Mbps 5000 m Internal 9. Mbps 6. Mbps 4.5 Mbps 5000 m External 13. Mbps 8. Mbps 6. Mbps 10000 m Internal 7. Mbps 5. Mbps 4. Mbps 10000 m External 10. Mbps 7. Mbps 5.
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). Access Point Beacon Miss Count Number of beacons unable to be sent (100-msec intervals) due to interference or CCA.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Client Beacon Missed Interrupts The number of beacons (100 msec) the client has missed from the access point. TX Failed due to too many retries This is the number of frames that have been lost. Original Message + 7 Retries = 1 TX failed due to too many retires. Each retry is sent within a few msec. TX Failed / TX Antenna Profile = Frame Packet Loss Rate (number undelivered as a %).
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Radio Path Test Settings Enable Radio Path Test Enables or disables the 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). Remote Device IP Address IP address of the remote device that you wish to path test.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual • RS-485 LED is green, indicating the throughput to the access point is greater than 10 Mbps. If the LED were red, it would mean the throughput is between 10 Mbps and 4 Mbps. NOTE Advanced configuration settings such as Serial or I/O Transfer should be disabled, and if using the throughput test, the Iperf server option on the Advanced Radio Settings page for the access point must be enabled. Figure 93 Throughput Test LEDs 4.
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. For details, see “3.15 Modbus I/O Transfer.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Register Module Description 4518 Both Total data packet sent on the interface. 4520 Both Transmit frames with antenna 1 (TX/RX). 4522 Both Transmit frames with antenna 2 (RX). 4524 Both Transmitter antenna switches. 4526 Both Transmitter on-chip retries. 4528 Both Transmit message failed due to too many retries. 4530 Both Transmit frames with alternate rate.
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. A good test for the network once it is first set up is to use “ping” repeatedly from one PC’s IP address to the other PC’s IP address.
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. Other ipconfig commands will return more information.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual route The “route” command is used for the router function. This is where you are joining two different networks together via the 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Chapter 5 - SPECIFICATIONS Transmitter/Receiver Frequency 2.412 – 2.472GHz (1) 5.150 – 5.
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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix A - FIRMWARE UPGRADE 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.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix B - GLOSSARY ACK 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. Each access point can serve multiple users within a defined network area. Also known as a base station.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual DNS 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. Every website has its own specific IP address on the Internet.
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. The seven layers are Physical, Data Link, Network, Transport, Session, Presentation, Application.
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. Rather than transmitting all the packets it receives to all ports as a hub does, a switch transmits packets to only the receiving port.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix C - CHANNELS 802.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Channel Freq (MHz) Europe Max TX Power (Master) Europe Max TX Power (Slave) Australia Max TX Power NZ Max TX Power USA Max TX Power 140 5700 26 dBm 20 dBm 24 dBm 20 dBm 24 dBm 149 5745 n/a n/a 26 dBm 26 dBm 26 dBm 153 5765 n/a n/a 26 dBm 26 dBm 26 dBm 157 5785 n/a n/a 26 dBm 26 dBm 26 dBm 161 5805 n/a n/a 26 dBm 26 dBm 26 dBm 165 5825 n/a n/a 26 dBm 26 dBm 26 dBm 802.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix D - 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. The following instructions cover Iperf and Jperf, but not the setup and configuration of the modems.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual “iperf –c -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. Figure 103 Bandwidth 4.
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. The command prompt screen will disappear and the Jperf screen will appear as seen in Figure 105. Figure 104 Jperf Figure 105 Jperf Screen 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix E - DECLARATION of CONFORMITY 245U-E-A Declaration of Conformity Rev Version 2.19 www.cooperbussmann.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual 245U-E-G Declaration of Conformity 110 www.cooperbussmann.com/wirelessresources Rev Version 2.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Appendix F - GNU FREE DOCUMENT LICENSE 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. Preamble The licenses for most software are designed to take away your freedom to share and change it.
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; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program.
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. 4.
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; we sometimes make exceptions for this.
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual Notes: Rev Version 2.19 www.cooperbussmann.
Customer Assistance North America & Latin America 5735 W. Las Positas Suite 100 Pleasanton, California 94588 USA Telephone: +1 925 924 8500 elpro-sales@cooperindustries.com Technical Support: United States:+1 866 713 4409 Australasia.: +61 7 3352 8624 Other: +1 604 944 9247 Email: ELPRO-Support@cooperindustries.com Website: www.cooperbussmann.com/wireless Australasia Fax: +61 7 33528677 US Fax: +1 925 924 8502 Online Resources Visit www.cooperbussmann.
