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Axis 2490 User Manual

Serial server
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Summary of Contents for Axis 2490

  • Page 1 User’s Manual...

  • Page 2: Electromagnetic Compatibility (Emc)

    About This Document This document is intended for administrators and users of the AXIS 2490 Serial Server, and is applicable for software release 2.0. Although many of the operational aspects of the product are described in the on-line help, this manual...

  • Page 3: Table Of Contents

    The AXIS 2490 in Your Application ........

  • Page 4: Overview

    This often required a lot of PCs, long cables, etc. The AXIS 2490 Serial Server makes it possible to connect serial devices directly to a network without using a PC, thus providing applications with convenient remote access to these resources via HTTP and TCP/IP.
  • Page 5 AXIS 2490 User’s Manual Overview With its own built-in Web server, the AXIS 2490 allows direct access from any browser on the network and provides full Web-based control of the management and configuration functions. The AXIS 2490 Serial Server supports high data rates and high throughput. It enables 10 Mbit and 100 Mbit Ethernet network access to serial devices using TCP/IP or HTTP as the transport protocol.

  • Page 6: Features And Benefits

    Features and Benefits Easy to Use - The AXIS 2490 is completely independent of any other server and requires no special hardware or software. All you need is Netscape Navigator 4.x or above, or Microsoft Internet Explorer 4.x or above. The AXIS 2490 has complete plug-and-use functionality - all you need do is assign a valid IP address.

  • Page 7: Product Description

    AXIS 2490 User’s Manual Product Description Read the following information to familiarize yourself with the AXIS 2490, making particular note of where the connectors and indicators are located. Front Panel Serial Number Located on the underside label of the AXIS 2490, the serial number is identical to the Ethernet address of the unit.

  • Page 8: Assembling Your Unit

    4 x Screws 4 x Plugs Printed Materials Model Variants AXIS 2490 Europe Australia Japan ST4.2X25 RXS-Z FZB 30X3.5-4MM Getting Started Guide AXIS 2490 R1.0 (or later) AXIS 2490 User’s Manual Part Numbers 0108-001-01 13267 13268 13269 13270 13936 13933...

  • Page 9: The Axis 2490 In Your Application

    The AXIS 2490 in Your Application The AXIS 2490 in Your Application The AXIS 2490 can be used in a wide variety of applications. Installing directly onto an Ethernet network, the product is completely independent and requires no additional software, unless you plan on using a COM-port Redirector (see below).
  • Page 10 Many applications require local serial ports for their function and will not work with a networked serial port, which is what you’ll have when using the AXIS 2490. To make the server’s ports appear to the application as if they were local ports, you must install and use additional software - a COM Port Redirector.
  • Page 11 AXIS 2490 User’s Manual The AXIS 2490 in Your Application 2 Serial Servers used together create a "tunnel" and use the network as a "virtual extension cable" This alternative can be used to connect two serial devices or a serial device with a PC using an application that uses COM ports.

  • Page 12: Connecting To A Network

    Assigning an IP Address Important! • Do not use the default IP address featured in the following examples when installing your AXIS 2490. If in doubt, consult your Network Administrator before assigning an IP address. • Server Privileges: Although no special privileges are required for Windows 95/98, you do need Administrator privileges for Windows NT/2000, and Root privileges on UNIX.

  • Page 13: Connect An Ethernet Cable

    Ensure that the Power Indicator is permanently lit and that the Status Indicator flashes intermittently. Exit PING The connection is now complete, and you are ready to access the AXIS 2490 from your Web browser, as described in the next section. Connecting to a Network...

  • Page 14: Verifying The Connection From Your Browser

    Having completed the procedure above, you should then verify the connection between the AXIS 2490 and the network, as follows: 1. Start your browser (see note below) and enter the IP address of the AXIS 2490 in the Location/Address field: http://172.21.1.200/...

  • Page 15: Alternative Methods Of Assigning The Ip Address

    Important! • Do not use the default or IP address featured in the following examples when installing your AXIS 2490. Acquire an unused IP address from your Network Administrator.
  • Page 16 2. Restart your AXIS 2490. 3. Select the serial number of your AXIS 2490 from the list. The serial number is identical to the unit’s Ethernet address. 4. Enter the desired IP address. Click Set IP address. The IP address will now be set.

  • Page 17: Mapping A Host Name To The Ip Address

    3. If it is not already running, start the BOOTP daemon. This is typically done using the command bootpd 4. Restart the AXIS 2490 to download the IP address, default router address, and subnet mask. Mapping a Host Name to the IP Address If you are using host names, you can also map a unique host name to the acquired IP address.

  • Page 18: Configuring Your Serial Server

    Log on as an Administrator using the username root and default password pass. It is recommended that you change the root password, since all Axis products are shipped with the same password as default. For further information on this, refer to System Security, on page 22.
  • Page 19 Start the Installation Wizard Starting the Installation Wizard 1. Start your browser and go to the AXIS 2490’s Home Page by entering the IP address you used to connect the Serial Server with in Quick Installation Procedure, on page 12.
  • Page 20 Finish to save your settings. No changes will be made until you actually click Finish. The individual settings in the configuration can now be changed at any time by using the Administration Tools, as described below. AXIS 2490 User’s Manual...

  • Page 21: Using The Administration Tools

    COM1 - Configure the serial port COM1 for baud rate, mode, protocols, modems etc. COM2 - As for COM1. RS485 - Configure the serial port RS485/RS422 for protocols, baud rate, flow control etc. It is recommended that you change the password for your AXIS 2490 as soon as possible. Note: On-line...

  • Page 22: Tools Overview

    AXIS 2490 as soon as possible - since all Axis products are shipped with the same pass- word as default.

  • Page 23: Reinstating The Factory Default Settings

    In certain circumstances, it may be necessary to reinstate the Factory Default settings for your AXIS 2490. This is performed by clicking the appropriate button within the Administration Tools, or by pressing the Control Button. Follow the instructions below to reinstate the product factory default settings using the Control button: 1.

  • Page 24: Appendix A - Troubleshooting

    How to test your setup Connect a serial port on the 2490 to a serial port on the PC using a null modem cable. Start a terminal program on the PC that accesses the serial port, e.g. Hyper Terminal in Windows or minicom or cua in Linux.

  • Page 25: Test A Com Port Redirector

    Configure the COM Port Redirector to connect to the host and the port. Enable or disable the use of telnet options (RFC2217), depending on the settings in the AXIS 2490 Serial Server. Start a second instance of the terminal program instead of using telnet. Whatever you type in the terminal programs should appear in the other terminal window.
  • Page 26 FAQ on the Axis Website at www.axis.com. Possible causes Remedial actions The TCP port number is Make sure you use the same port number the 2490 is configured wrong. for. The 2490 is not in Generic Check the settings in the 2490.

  • Page 27: Appendix B - Technical Specifications

    A COM Port Redirector, which allows existing Windows software to access networked attached serial devices, can also be used with the serial server. For more information about COM-Port Redirectors, please see the AXIS 2490 product pages at www.axis.com. The Axis IP-installer can be used to assign IP-addresses.
  • Page 28 Most driver circuits are compatible with both, at least for the receiver part. The AXIS 2490 Serial Server is primarily designed to work with RS-485 devices, although it will probably work with most RS-422 devices as well. A terminating 100-120 Ohm termination resistor might be needed between RX+ and RX-.
  • Page 29 EN 60950, UL, CSA. Warranty 1 year. Please register your product at http://warranty.axis.com. AXIS Chipset Technology The AXIS 2490 Serial Server comprises Axis' own ETRAX 100 32-bit RISC processor and embedded Linux. See http://developer.axis.com for info about our embedded Linux.
  • Page 30 Technical Specifications AXIS 2490 User’s Guide All specifications are subject to change without prior notice.

  • Page 31: Appendix C - Updating The Software

    New software can be simply loaded into the AXIS 2490 over the network. Obtaining Updated Software The latest version of the AXIS 2490 software is available free of charge from Axis or from your local distributor. You can obtain this software over the Internet from www.axis.com. Updating the Software The AXIS 2490 Flash memory is updated over the network using FTP.

  • Page 32: Appendix D - The Unit Connectors

    Two 9 pin male D-sub connectors provide the physical connections for the RS-232 serial interface of the AXIS 2490. These connectors are for use with serial devices at speeds of up to 115200 bps. The RS-232 ports (3 outputs and 5 inputs) support all status and control signals.
  • Page 33 Most driver circuits are compatible with both, at least for the receiver part. The AXIS 2490 Serial Server is designed primarily to work with RS-485 devices, although it will probably work with most RS-422 devices as well. A terminating 100-120 Ohm termination resistor might be needed between RX+ and RX-.
  • Page 34 The port is compliant with EIA-RS-485 up to 1843200 bps. RS-485/422 Serial Port on screw terminal block Function GND (Standard Ground) GND100 Ohm (Connected to Gnd via 100 Ohm resistor) RX/TX -A RX/TX +B TX - TX + AXIS 2490 User’s Manual...

  • Page 35: Appendix E - Examples

    AXIS 2490 User’s Manual Examples Appendix E - Examples Applications Access Control Devices Many buildings nowadays do not use door keys for controlling access, but instead use magnetic cards and card readers at each door or access point. Entering a code on a keypad is another alternative.

  • Page 36: Barcode Readers

    Suppose a device malfunctions and the manufacturer and/or service technicians are located on the other side of the world. Via the AXIS 2490 Serial Server it would be possible to connect the device’s serial port to the Internet, where it will then be available to service engineers, who will be able to find out what is wrong with the device and recommend a course of action.

  • Page 37: Climate Control

    This is a realization of a Pan/zoom/tilt device and a camera connected to a network via AXIS 2490 Serial Servers. The camera can be controlled by simply using a browser and clicking on control buttons in the web page. Another alternative is to activate the proper camera positions by using an image map of the area in question, as in the example above.

  • Page 38: Serial Port Control

    Select COM port. 1,2,3 Selects the source AXIS server. If omitted, and the "port=" command is also ommitted, the default AXIS server is used to determine the serial port to use. Makes the AXIS server keep the connection open, and start acting as a link between the client and the serial port.

  • Page 39: Simple Tcp Client Program Example For A Generic Tcp/Ip Port

    * This uses blocking sockets without select(), use select() for more complex applications. * Compile with: gcc -Wall tcpclient.c -o tcpclient * Axis Communications AB, Lund Sweden #include <string.h> #include <unistd.h> /* read, write, close */ #include <stdlib.h>...

  • Page 40: Index

    Installation 12 Installation Wizard 18 Internet address 25 IO Connector Block 32 IP Address 12 Linux 6, 27 AXIS 2490 User’s Manual Mapping a Host Name 17 Network Connector 7 Networking Applications 9 Obtaining updated software 31 Open serial port 38...

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