        #
        | README file for
        |
        | ELSA MicroLink ISDN/PC
        | Version 2.02
        |
        | Copyright (c) 1993-96 ELSA GmbH, Aachen (Germany)
        |
        |                                     Subsidiary:
        | ELSA GmbH                           ELSA Inc.
        | Sonnenweg 11                        2150 Trade Zone Blvd.
        | D-52070 Aachen                      Suite 101
        | Germany                             San Jose, CA 95131
        |                                     USA
        |
        | Phone      : +49-241-9177-0         Phone: +1-408-935-0350
        | Support Fax: +49-241-9177-113       Phone:  1-800-272-ELSA
        | BBS (modem): +49-241-9177-981       Fax  : +1-408-935-0370
        | BBS (ISDN) : +49-241-9177-7800      BBS  : +1-408-935-0380
        | CompuServe : GO ELSA                CIS  : GO ELSA
        | WWW        : http://www.elsa.de     WWW  : http://www.elsa.com
        |
        | 10/01/96

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        Table of Contents

        1.      Overview
        2.      Contents
        3.      Installation
        4.      Notes

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1.      Overview:

        This file contains notes and changes to the MicroLink
        ISDN drivers.

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2.      Contents:

        This directory contains the following files:

        README.TXT    this file
        LIESMICH.TXT  german version of this README.TXT

        ISDNMON.EXE   ELSA ISDNmonitor for DOS

        ISDNAT.EXE    AT driver for 1TR6
        DSS1AT.EXE    AT driver for DSS1

2.1     Driver for CAPI 1.1 and 1TR6 (national ISDN):

        ISDNCAPI.EXE  CAPI version 1.1 driver for MicroLink ISDN/PC
        D channel protocol : 1TR6 (national ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120

        ISDNCAPX.EXE  CAPI version 1.1 driver for MicroLink ISDN/PC
        D channel protocol : 1TR6 (national ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120
                             ISO 8208 (X.25), T.90

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2.2     Driver for CAPI 1.1 and DSS1 (EURO-ISDN):

        DSS1CAPI.EXE  CAPI version 1.1 driver for MicroLink ISDN/PC
        D channel protocol : DSS1 (EURO-ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120

        DSS1CAPX.EXE  CAPI version 1.1 driver for MicroLink ISDN/PC
        D channel protocol : DSS1 (EURO-ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120
                             ISO 8208 (X.25), T.90

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2.3     Driver for CAPI 2.0 and 1TR6 (national ISDN):

        ISDNC20I.EXE  CAPI version 2.0 driver for MicroLink ISDN/PC
        D channel protocol : 1TR6 (national ISDN)
        B channel protocols: HDLC transparent, bit transparent, X.75

        ISDNC20X.EXE  CAPI version 2.0 driver for MicroLink ISDN/PC
        D channel protocol : 1TR6 (national ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120
                             ISO 8208 (X.25), T.90
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2.4     Driver for CAPI 2.0 and DSS1 (EURO-ISDN):

        DSS1C20I.EXE  CAPI version 2.0 driver for MicroLink ISDN/PC
        D channel protocol : DSS1 (EURO-ISDN)
        B channel protocols: HDLC transparent, bit transparent, X.75

        DSS1C20X.EXE  CAPI version 2.0 driver for MicroLink ISDN/PC
        D channel protocol : DSS1 (EURO-ISDN)
        B channel protocols: HDLC transparent, bit transparent,
                             X.75, T.70NL, V.120
                             ISO 8208 (X.25), T.90

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3.      Installation:

        The following illustration shows the mounting bracket of 
        your ISDN adapter board (8 bit):
                       _____                                                                       
                       \    |
                        |   |
                        |___|
                        |___|<- ISDN line connector
                        |   |
                        |   |
                        |   |
                        | o |<- ISDN connection status display (yellow LED)
                        | o |<- ISDN interface status display (green LED)
                        |   |
                        |___|
       
                                    _
         __________________________|
        |        |_____| <- DIP switches
        |                          |
        |                         _|
        |                        |_ <- ISDN line connector
        |                          |       
        |                          |
        |                          o<- yellow LED
        |                          o<- green LED
        |                     __   |
        |____________________|  |__|


        Use the DIP switches S1..S8 on the board to select the I/O address  
        and IRQ line of the ISDN and the COM interface of the ISDN 
        adapter board:

         -------------------------------- ----- -----    
        | I/O address (ISDN interface)   | S1  | S2  |   
        |--------------------------------|-----|-----|   
        |   160h ( default setting )     | off | off |   
        |   170h                         | off | on  |   
        |   260h                         | on  | off |   
        |   360h                         | on  | on  |   
         -------------------------------- ----- -----    

         -------------------------------- ----- -----    
        | I/O address (COM interface)    | S3  | S4  |   
        |--------------------------------|-----|-----|   
        |   0x3f8h = COM 1               | off | off |   
        |   0x2f8h = COM 2 ( default )   | off | on  |   
        |   0x3e8h = COM 3               | on  | off |   
        |   0x2e8h = COM 4               | on  | on  |   
         -------------------------------- ----- -----    

         -------------------------------- ----- -----    
        | IRQ (ISDN interface)           | S5  | S6  |   
        |--------------------------------|-----|-----|   
        |   2 ( default setting )        | off | off |   
        |   3                            | off | on  |   
        |   5                            | on  | off |   
        |   7                            | on  | on  |   
         -------------------------------- ----- -----    
         
         -------------------------------- ----- -----    
        | IRQ (COMx interface)           | S7  | S8  |   
        |--------------------------------|-----|-----|   
        |   IRQ 4 = COM 1/3              | off | off |   
        |   IRQ 3 = COM 2/4 ( default )  | off | on  |   
        |   no interrupt                 | on  | off |   
        |   no interrupt                 | on  | on  |   
         -------------------------------- ----- -----

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        a.) Choose the COM port using the DIP switches.

            If you want an different setting, please read your manual or
            have a look on your board.

        b.) Install the MicroLink ISDN board in your PC
            considering the usual safety rules (look manual).

        c.) Load the desired driver. Consider the D channel
            protocol of your ISDN line (DSS1 or 1TR6) and the selected
            B channel protocols (with or without ISO 8208 / T.90).

        d.) To use the driver under WINDOWS '95 please add the call
            to the AUTOEXEC.BAT.

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4.      Notes:

        The manual may not be corresponding to the latest release. The latest
        information you will always find in the Support BBS ELSA ONLINE.

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        V.120 under CAPI 1.1 and CFOS (version newer than 07/15/96):

        Enter the following AT-command:

            AT B12 S17=1 S76=1

        Now, the ISDN adapter board tries to get a V.120 connection
        erverytime you dial "ATDn" (n = number)..

        If you want to get back to X.75 mode, you have to enter:

            AT&F

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        V.120 under CAPI 2.0 and CFOS (version newer than 07/15/96):

        Enter the following AT-command:

            AT B12 S17=1 S76=1

        Now, the ISDN adapter board tries to get a V.120 connection
        erverytime you dial "ATDn" (n = number)..

        If you want to get back to X.75 mode, you have to enter:

            AT&F

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        Have fun with your MicroLink ISDN board.
