1. 3c_em556d2.zip Driver
2. CONFIG.TXT File Contents

CONFIG.TXT Driver File Contents (3c_em556d2.zip)

CONFIG.TXT File
3Com Corporation
3Com Megahertz LAN + Modem PC Card (3CxEM556 PC Card family)


      Configuration and Diagnostic Instructions Summary

 This document contains information on running the configuration
 and diagnostic utilities provided on the Installation Disk #2.
 
 Topics include:

      Overview
	Running DOS CONFIG under Windows 95
	Starting the Configuration and Diagnostic utility
	Configuration Changes
	Diagnostic Tests
	Where to Get Additional Information


 Overview
 --------
 The configuration portion of the program lets you change the
 configuration parameters for the adapter to accommodate a
 specific operating environment.

 The diagnostic portion of the Configuration and Diagnostic
 Program ensures that the adapter is installed correctly and
 functioning properly.  The basic tests check the physical
 components, connectors, and circuitry of the adapter and
 require only that the adapter be installed in the computer.
 
 The Echo tests check the adapter's ability to transmit data
 on the network and require that the adapter be connected to
 a network.

 The computer containing the adapter to be configured or tested 
 must be running DOS only.


 Running DOS CONFIG Under Windows 95
 ------------------------------------------

 You should run CONFIG.EXE from a DOS command Prompt.

 Restart the computer.  When you see "Starting Windows 95" press the F8 key.
 At the menu, choose "Safe mode Command Prompt Only" (usually #7).

 If you do run CONFIG.EXE from within Windows 95, use it only to read
 the informational documentation.  Do not use it to configure the 
 adapter nor to run AUTOLINK.EXE


 Starting the Configuration and Diagnostic utility
 -------------------------------------------------
 There are two ways to start the program:

 1.  From the CONFIG.EXE program, by selecting Configuration and 
     Diagnostic Program on the main menu.

 2.  Manually, from the root directory of the Installation Disk #2, 
     by typing the following command:

        CONFIG [command keyword] [parameter list]

     CONFIG represents the 3Com Configuration and Diagnostic Program 
     name. The brackets indicate that the command keyword and 
     parameter list are optional.

     CONFIG without any arguments invokes the program in full Windows
     mode.  


 Command Line Keywords
 ---------------------
    The command keywords and parameters are not case-sensitive, so
    CONFIG, config, and Config, for example, will all work.


    CONFIG.EXE
        Configures an adapter using command line configuration 
        parameters.


 Configuration changes
 ---------------------
    The adapter can be configured in either full screen windows 
    mode or command line mode.


 Full Screen Windows Mode
 ------------------------
    To configure the adapter using full-screen windowing, type:
    
      CONFIG [Enter]

    Select Configuration and Diagnostic Program on the main menu.
    Then select the Configure Adapter option in the Configuration and
    Diagnostic menu.


 Command Line Mode
 -----------------
    While Command Line Parameters are included here for completeness,
    use of the Command Line Mode may produce anamolous results.

        
 Command Line with Explicit Parameters
 -------------------------------------
    Command syntax:  CONFIG CONFIGURE  [ /AUTO /IOBASE:N /INT:N
                     /TR:N /MODEM:N /OPTIMIZE:N /LINKBEAT:N ]

        Each parameter must be of the structure "/keyword:value" and
        contain no blank spaces.  

        For example: /iobase:300 /int:3

        Command line configuration parameters are used to configure 
        the adapter using only the option settings you specify. 
        In most cases, any combination of parameters can be used. 
        Therefore, it is possible to modify only a few settings 
        if needed.

         /AUTO
            The /AUTO parameter configures the adapter automatically 
            based on the software's best estimate using interpreted 
            system information.

        /IOBASE           
            I/O Base Address  
            Possible values - 200,210,220,230,240,250,260,270,280,
            290,2A0,2B0,2C0,2D0,2E0,2F0,300,310,320,330,340,350,360,
            370,380,390,3A0

        /INT           
            Interrupt Level  
            Possible values - 3,5,7,9,A,B,C,F
	    Using invalid Interrupt values will produce undesirable 
            results.

        /TR 
            Transceiver Type 
            Possible values - AUTO, TP, COAX

        /MODEM 
            Maximum Interrupt Disable Time 
            Possible values - NoModem, 1200, 2400, 9600, 19200, 38400

        /OPTIMIZE 
            Network Driver Optimization
            Possible values - DOS, WINDOWS, SERVER

        /LINKBEAT
            Link beat disable/enable (pre-10BASE-T standard only)
            Possible values - ENABLE, DISABLE
		To DISABLE linkbeat, use the /LINKBEAT:ENABLE switch.
		To ENABLE linkbeat, use the /LINKBEAT:DISNABLE switch
            
            NOTE:  Try this setting ONLY if pre-10BASE-T standard hubs
                   are in use.


 Diagnostic tests
 ----------------

 Full Screen Windows Mode
 ------------------------
    The diagnostic tests are only available in full-screen mode.
    To run the diagnostic tests, type:

    CONFIG [Enter]

    Select Configuration and Diagnostic Program on the main menu.
    Then select Diagnostic Tests option in the Configuration and
    Diagnostic menu.


 Where to Get Additional Information
 -----------------------------------
 If the adapter fails any of the diagnostic tests, see the 
 TROUBLE.TXT file in the \HELP directory on the Installation 
 Disk #2 for troubleshooting procedures.

 The SUPPORT.TXT file in the \HELP subdirectory on the Installation 
 Disk #2 provides information about obtaining product support for 
 the adapter.

 3Com and Megahertz are registered trademarks of 3Com
 Corporation.  All other trademarks are the property of their 
 respective owners.


(%VER CONFIG.TXT - Configuration and Diagnostic Instructions v5.56.0)