15
T
ROUBLESHOOTING
This chapter explains how to troubleshoot the Business Modem. This
chapter is divided into these sections:
■
Problems that occur before connecting.
■
Problems that occur after connecting.
■
What to do if you still have problems.
Problems That
Occur Before
Connecting
No response to AT
For Windows users, make sure that you set the correct COM port and IRQ
in your communications software and, if applicable, in Windows' Control
Panel - Ports.
For Macintosh users, make sure that you set the correct serial port
(modem port or printer port) and that AppleTalk is disabled.
■
Make sure that your communications software is in Terminal mode.
■
Be sure that your communications software is set to the correct bit
rate and word length (7 bits with or without a parity bit, or 8 bits and
no parity).
Содержание U.S. Robotics 56K Voice
Страница 1: ...http www 3com com 3Com OfficeConnect 56K Business Modem Command Reference Published January 1999...
Страница 14: ...4 ABOUT THIS GUIDE...
Страница 32: ...1 18 CHAPTER 1 CONNECTING TO YOUR ISP...
Страница 42: ...3 6 CHAPTER 3 MODES OF OPERATION...
Страница 64: ...7 4 CHAPTER 7 CONTROLLING EIA 232 SIGNALING...
Страница 72: ...8 8 CHAPTER 8 CONTROLLING DATA RATES...
Страница 80: ...9 8 CHAPTER 9 ACCESSING AND CONFIGURING THE BUSINESS MODEM REMOTELY...
Страница 96: ...11 6 CHAPTER 11 FLOW CONTROL...
Страница 108: ...12 12 CHAPTER 12 HANDSHAKING ERROR CONTROL DATA COMPRESSION AND THROUGHPUT...
Страница 112: ...13 4 CHAPTER 13 DISPLAYING QUERYING AND HELP SCREENS...
Страница 124: ...14 12 CHAPTER 14 TESTING THE CONNECTION...
Страница 132: ...15 8 CHAPTER 15 TROUBLESHOOTING...
Страница 162: ...B 14 APPENDIX B ALPHABETIC COMMAND SUMMARY...
Страница 168: ...C 6 APPENDIX C FLOW CONTROL TEMPLATE...
Страница 210: ...14 GLOSSARY...