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EtherPath-X4 User’s Guide

Application Notes

There are a number of application notes available from the DCB web site at

http://www.dcbnet.com

. These

cover port redirection, selecting the proper product (EtherPath vs. EtherPoll), SNMP, middleware for the
EtherPath, a demonstration client-server software system, and other issues.

A complete copy of the SNMP MIB is available from the same site along with a free port redirector
program (along with source code) for various UNIX workstations. A trial port redirector program for
Windows is also available.

These and more are available in the Education section of that web site.

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Содержание etherpath X4

Страница 1: ...EtherPath X4 S erial S erver User s Guide Revised April 5 2012 Firmware Version 1 09...

Страница 2: ...is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operati...

Страница 3: ...mware 3 On board Tools 3 Physical Details 4 Front Panel 4 Rear Panel 5 BottomRed LED 5 Configuration Switches 6 Switch 1 6 Switch 2 6 Switch 3 6 Switch 4 6 LED Indicators 6 Rear Panel LED Indicators 6...

Страница 4: ...eway IP Address 20 4 TCP Tx Timeout 20 5 SNMP Enable 20 6 Web Setup Enable 20 This option controls whether the Etherpath s web server which allows web configuration to work or not If you select disabl...

Страница 5: ...Filter 24 8 Client Local Character Echo 24 9 Keep Alive Frequency 24 Setting this parameter to a non zero value will enable a Keep Alive feature in the Unit When the Unit is in Client mode it will sen...

Страница 6: ...36 Method 2 Hardware Dial mode 36 Chapter 7 Configuration Security 37 Overview 37 Level 0 37 Level 1 37 Level 2 37 Level 3 38 Chapter 8 Troubleshooting 39 Hardware Problems 39 Can t Connect via the L...

Страница 7: ...X4 to PC crossover ethernet cable 46 46 Appendix C Programming 47 Introduction 47 Description and Behavior 47 Ports used by the EtherPath 47 Server Mode 48 Transmit Conditions 48 Locking Avoidance Me...

Страница 8: ...in nailed up mode to build a RS 232 path through the WAN LAN Multiple EtherPaths may be connected via Ethernet by using them in Point to Multiple point AT Dial mode The EtherPath X4 provides four inde...

Страница 9: ...addresses instead of telephone numbers Reverse Telnet Telnet Client Mode This mode requires only a single EtherPath The EtherPath is connected to the serial port device and to the LAN The EtherPath wi...

Страница 10: ...data to the correct protocol Configuration Security Etherpath configuration may be Locked down or restricted in several ways The web Browser interface telnet configuration interface and SNMP configur...

Страница 11: ...Figure 1 EtherPath X4 Front Panel Status Red LED Status Indicator Power Red LED Power Indicator RJ 45 Serial Port 1 1 Red LED Port 1 Activity 2 Red LED Port 2 Activity RJ 45 Serial Port 2 RJ 45 Seria...

Страница 12: ...me units use different power connectors Figure 1 EtherPath X4 Rear Panel 1 Power port Connect the power adapter here 2 Switch Bank Configuration Switches Top Red LED LAN Activity Indicator Bottom Red...

Страница 13: ...itch 2 This switch places the unit in basic configuration mode It is used to provide a terminal interface for initial configuration Powering up the unit with this switch UP provides a terminal attache...

Страница 14: ...LED flashes with activity on the Ethernet even if the activity isn t directly to this unit The upper red LED is multi function indicator The different states indicated by these LED are described belo...

Страница 15: ...cators Lower Left LED is a power indicator Upper Left LED is a status indicator It should always be on Front Panel Port LED Indicators OFF no DCD ON DCD present or nailed up FLASH 1 second no socket s...

Страница 16: ...ntact your dealer immediately Software Requirements The EtherPath supports the following protocols TCP IP UDP ARP ICMP TELNET SNMP The EtherPath has been tested to work with All versions of Windows Un...

Страница 17: ...tallation 1 Configure the EtherPath s IP address This requires several steps If the unit s default address 192 168 1 1 is appropriate for your network skip this step 1 Place configuration switch 2 in...

Страница 18: ...se T LAN cable to the Ethernet Port and Reboot the unit with a power cycle or the reset switch The EtherPath will now be available for configuration with any web browser on the same LAN segment If you...

Страница 19: ...URL from step 1 8 or http 192 168 1 1 if appropriate into your web browser The login screen below should be displayed Login Screen Log in using the user name admin and no password blank field If this...

Страница 20: ...IP address appropriate for your LAN 2 Serial port configuration appropriate to communicate with your serial device Configure these items and the EtherPath is ready for use Help Screens and Field Edits...

Страница 21: ...lues However there are many valid values that are not appropriate for any given configuration So appropriateness isn t tested For example an IP address of 300 400 500 256 will not be accepted but the...

Страница 22: ...tion file from the PC then either activate it to test it Or save it without activation if you don t want to change the currently running Using the Configuration Flexibility When the EtherPath starts f...

Страница 23: ...ed configuration to the EtherPath save it reset the EtherPath to activate the changes It is useful to transfer an existing configuration to a PC text file for future use Then if the hardware must be r...

Страница 24: ...Path a compatible IP Address prior to installation in your network Telnet Mode After installing the EtherPath in your LAN connect to it using Telnet for configuration Both Terminal and Telnet modes pr...

Страница 25: ...lt IP address had not been changed then you would enter the command telnet 192 168 1 1 8000 If you can t connect If the EtherPath does not respond check the following The EtherPath is properly install...

Страница 26: ...the field you wish to change followed on the same line by a space and the data for that field For example On screen one to set the IP address field 1 to 192 168 1 10 1 192 168 1 10 Menu Options Main...

Страница 27: ...to be serviced disable to disallow SNMP queries 6 Web Setup Enable This option controls whether the Etherpath s web server which allows web configuration to work or not If you select disable and activ...

Страница 28: ...e settings used should match the device connected to the serial ports of the EtherPath Note that the EtherPath s serial port settings must match the device that is plugged into THAT EtherPath The devi...

Страница 29: ...must be correct for proper operation Client Dial Mode Set port dialing mode AT Dial Hardware DCD Dial or Nailed Up In AT dial mode modem like AT commands are used to connect to a remote server In DCD...

Страница 30: ...ter receiving a character before sending a block of data via the Ethenet This is used to keep incoming blocks of data intact It is useful for some protocols such as Modbus RTU Its setting depends upon...

Страница 31: ...cter This setting is used to change the Line Terminator Character The Line Terminator Character causes any data in the buffer to be transmitted immediately the character is received provided This is t...

Страница 32: ...ive messages to the server at the specified frequency when the link between the client and server is idle When the Unit is in Server mode it will close the connection if the link is idle for more than...

Страница 33: ...ta Bits 8 Stop Bits 1 Client Dial Mode nailed up Mode server Client s Remote IP Address Server Ethernet Port 3000 SAME INFO FOR PORTS 2 4 Advanced Serial Port Configuration port 1 Transmit Timer ms 20...

Страница 34: ...you have changed the IP Address you must use the new IP Address when you reconnect Using option 7 when there were no changes made is one way to effect a cold reboot on a remote EtherPath Main Menu Opt...

Страница 35: ...EtherPath X4 User s Guide Main Menu Option 9 Exit without Saving Selecting 0 from the Main Menu will exit the configuration program without saving any data you have entered 28...

Страница 36: ...forms displayed on a web browser In this chapter we illustrate all entry forms and describe their use All configuration screens are accessed from the main index screen shown below They are divided int...

Страница 37: ...nd password once then will remember it for the duration that the Web Browser is running The Administration screen allows you to change the user name and password for the router administrator This is t...

Страница 38: ...wise it may be necessary to return to the old stored configuration with a reset Upload new Firmware File From time to time new versions of firmware are made available These may be uploaded to the Ethe...

Страница 39: ...ath X4 User s Guide Activate Changes Activate Changes Screen Activate Changes will move the current pending configuration to the active configuration See the Configuration overview for more detail Not...

Страница 40: ...uration Screen This screen stores the pending configuration in the permanent memory It does not activate the changes but the changes will be activated upon the next boot or power cycle See the configu...

Страница 41: ...correctly installed and configured as described in Chapters 3 or 4 One serial port device is connected to the Server EtherPath and another serial device is connected to the Client EtherPath One Ether...

Страница 42: ...cted as described in Chapters 3 and 4 One serial port device is connected to each Server EtherPath and additional serial devices usually a workstation are connected to the Client EtherPaths The Client...

Страница 43: ...should see the message Connect OK from the client mode EtherPath when the connection is established You may now proceed as if the remote telnet server was connected to the serial port of your workstat...

Страница 44: ...n Level 1 restricts configuration to workstation users knowing the admin user name and password Either web based or telnet configuration is allowed Level 2 disables remote configuration using web brow...

Страница 45: ...enter a user name and password pair If there is a user name then a password prompt will be issued upon establishing a telnet configuration session Otherwise the user name and password accept blank en...

Страница 46: ...ng to a 9 pin PC port a crossover null modem cable is required P1 All the EtherPath s LEDs are off S1 Check the power supply or power connection P2 When using 10Base T cabling the EtherPath unit does...

Страница 47: ...work Mask of 255 255 255 0 If a router is between the devices a gateway address must be configured in both devices Check your PC s IP Address using Control Panel Network TCP IP Adapter Properties or s...

Страница 48: ...eld The Gateway IP Address is set correctly The Subnet Mask is set correctly The communication parameters between the PC terminal and the local Client EtherPath match The communication parameters betw...

Страница 49: ...mmand telnet IP_Address 8000 Where IP_Address is the IP Address assigned to the EtherPath and 8000 represents the Port number The port number is 8000 for configuration but 3000 is the default for norm...

Страница 50: ...connectors pinned out as RS 561 RS 232 speed Up to 230 4 2 Kbps CPU Motorola Coldfire 5272 CPU 66 Mhz OS uClinux Power 9 VDC 600mA or Optional power supplies Switch Configuration Reset LED 8 Status S...

Страница 51: ...t below details signal directions and names NOTE Ports 1 and 2 have no connection on pin 1 and pin 2 Control Signal Operation DTR Output This signal is held at the asserted state when a logical connec...

Страница 52: ...sed CTS Input When Flow Control is set for CTS RTS lowering this signal will halt data flow from the unit s RS 232 port RS 422 PIN Assignments RJ 45 Connector This pinout is used only on Port 1 of the...

Страница 53: ...data into the unit This is the negative side of a balanced signal The return is on PIN 6 RXD B Receive Data RXD B PIN 6 Input data into the unit This is the positive side of a balanced signal The ret...

Страница 54: ...4 to PC crossover ethernet cable An ethernet crossover cable may be constructed to allow the EtherPath s ethernet port to directly connect to a PC without using a hub Use the following pinout 47 Ether...

Страница 55: ...ystems AIX Linux SCO5 FreeBSD OSF Termnet works quite well It is GNU d freeware available from http www dcbnet com or http www linuxlots com For Microsoft Windows systems Serial IP is an excellent low...

Страница 56: ...r Mode EtherPath could be locked if its connecting Client Mode EtherPath disconnects abnormally If this situation happens no connection to the Server Mode EtherPath is possible and it should be reset...

Страница 57: ...vs EtherPoll SNMP middleware for the EtherPath a demonstration client server software system and other issues A complete copy of the SNMP MIB is available from the same site along with a free port re...

Страница 58: ...current settings including ATE and ATV AT Z reset EtherPath Same as ATZ escape to command mode when connected AT Command Responses The serial port responses depend on the ATE setting Verbose Terse OK...

Страница 59: ...the community Other open source software used in this product may be obtained from the original developers and is made available in accordance with GNU licensing terms Obtaining the Source Code For m...

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