Appendix B: PC Serial Ports
Selecting an Add-In Serial Port Card
This section presents advice on how to choose an add-in serial port card for
use with PassageWay Solution. Because PassageWay Solution does not have
any unique requirements with respect to serial ports, this advice applies
generically to selecting a serial port for use with any peripheral.
In general, there are two main things to consider when selecting a serial port
for use with PassageWay Solution:
1.
Choose a card which offers the flexibility to configure its serial port IRQs
to values other than IRQ3 and IRQ4 (for example, to IRQ2 or IRQ5).
This capability often proves to be very beneficial, especially if you are
purchasing the card to add a COM3 and/or COM4 port to your system.
As described at length in "Workarounds and Solutions to the IRQ
Conflict Problem," for PCs which do not support IRQ sharing (which
includes most PCs, unfortunately), the ability to relocate the IRQ for
COM3 or COM4 away from the defaults (IRQ4 and IRQ3, respectively)
represents the only direct solution to conflicts which may arise when
attempting to use COM1 along with COM3 or COM2 along with COM4
under Windows.
If you know your PC does not support IRQ sharing, or if you are not
sure, it’s a good idea to purchase a card with this capability. If you
know your PC supports IRQ sharing, this capability is not as potentially
important.
2.
For best performance with PassageWay Solution, choose a card which
has hardware support for high-speed communications.
B-10
Summary of Contents for Partner 18
Page 1: ......
Page 21: ...xvi ...
Page 28: ...Installing and Setting Up PassageWay Solution Figure 2 1 PassageWay Solution Components 2 3 ...
Page 65: ...Installing and Setting Up PassageWay Solution 2 40 ...
Page 93: ...Using AT TBuzz 3 28 ...
Page 96: ...Using AT TCall Figure 4 1 Untitled AT TCall Window 4 3 ...
Page 97: ...Using AT TCall Figure 4 2 Components of an AT TCall Window 4 4 ...
Page 100: ...Using AT TCall Figure 4 4 Desktop with 10 20 Quick Dials and Card Hidden 4 7 ...
Page 101: ...Using AT TCall Figure 4 5 Desktop with 25 50 Quick Dials and Card Displayed 4 8 ...
Page 102: ...Using AT TCall Figure 4 6 Desktop with 25 50 Quick Dials and Card Hidden 4 9 ...
Page 144: ...Using AT TCall Figure 4 26 Printed Cards With and Without the Notes 4 51 ...
Page 177: ...Using AT TCall 4 84 ...
Page 181: ...Using AT TSet Figure 5 2 Components of the AT TSet Window 5 4 ...
Page 247: ...Using Log Viewer 6 20 ...
Page 250: ...Using AT TConnect Figure 7 1 AT TConnect Window 7 3 ...
Page 252: ...Using AT TConnect Figure 7 2 Events Log Dialog Box 2 When finished select the OK button 7 5 ...
Page 265: ...Using AT TConnect 7 18 ...
Page 287: ...Troubleshooting 9 18 ...
Page 289: ...Appendix A Menu Trees Figure A 1 AT TBuzz Menu Tree A 2 ...
Page 290: ...Appendix A Menu Trees Figure A 2 AT TCall Menu Tree A 3 ...
Page 291: ...Appendix A Menu Trees Figure A 3 AT TSet Menu Tree A 4 ...
Page 292: ...Appendix A Menu Trees Figure A 4 Log Viewer Menu Tree A 5 ...
Page 293: ...Appendix A Menu Trees Figure A 5 AT TConnect Menu Tree A 6 ...
Page 305: ...Appendix B PC Serial Ports B 12 ...
Page 311: ...Glossary GL 4 ...
Page 318: ...560 201 103 AT T 1993 AT T ...