CONTENTS
3
Hardware Section
1. Specifications......................................................................................5
2. Introduction .......................................................................................6
3. Installation..........................................................................................7
3.1 Setting the Internal DIP Switches ..............................................7
3.2 Configuring the Shunt Jumpers for DTE or DCE ....................9
3.3 Connecting Devices to the Switch’s Parts ................................10
4. Operation .........................................................................................11
4.1 Front-Panel Indicators ..............................................................11
4.2 Reset Button ..............................................................................11
4.3 ASCII Control Codes ................................................................11
4.4 Break Detection ........................................................................14
5. Troubleshooting...............................................................................15
5.1 Self-Tests ....................................................................................15
5.2 Sample Test Program ................................................................16
Appendix A ASCII Codes ..................................................................17
Appendix B Installing the 4-Port Expansion Card...........................18
Appendix C Quick Setup Guide.........................................................19
LINKUP Software
1. Introduction .....................................................................................21
1.1 What Is LINKUP? ......................................................................21
12. Hardware Requirements...........................................................21
2. Setup and Configuration .................................................................23
2.1 Files on the LINKUP disk .........................................................23
2.2 Making a Backup Copy .............................................................23
2.3 Installing the LINKUP Files on Your Hard Drive....................24
2.4 Modifying your AUTEXEC.BAT File .......................................24
2.5 Default Settings .........................................................................25
2.6 Configuring the COMS, LINKUP, and DOS ...........................25
3. Running LINKUP ............................................................................27
3.1 Hints for Using LINKUP and the COMS ................................27
3.2 Sending Data with DOS ............................................................27
3.3 Sending Data with Your Application Programs.......................27
4. Troubleshooting...............................................................................29
Contents
