Multi-Tech Systems MT4X56USB

Four USB V.90 Modems

Chapter 6 - Troubleshooting

Contents

Main User Guide Record of Revisions Patents Trademarks Notice Contents Chapter 1 - Introduction and Description Chapter 2 - Installation Chapter 3 - Software Loading and Configuration Chapter 4 - AT Commands, S-Registers and Result Codes Chapter 7 - Upgrade Procedure Chapter 8 - Service, Warranty and Tech Support Appendices Glossary of Terms Index Page Features Technical Specifications Preview of this Guide Chapter 1 - Introduction and Description Chapter 2 - Installation Related Documentation Front Panel Modem Ports (Ports 1, 2, 3, and 4) Hub System Back Panel Page Unpacking Safety Warning Telecom Cabling your MT4X56USB Page Page System USB Support Loading your Driver Software MT4X56USB Drivers for Windows 98 Page Uninstalling MultiModemUSB in Windows 98 MT4X56USB Drivers for Windows 95 Uninstalling MultiModemUSB in Windows 95 MT4X56USB Drivers for Windows NT 4.0 Uninstalling MultiModemUSB in Windows NT 4.0 MT4X56USB Drivers for Windows 2000 Page Page Uninstalling MultiModemUSB in Windows 2000 Installing Your V .90 Modems Page Page Page Installing Your V.90 Modems (Windows 2000) Page Page Windows 95/98 Configuration Utility Page Windows NT 4.0/2000 Configuration Utility Page Page Page AT Command Summary Page Page Page Page Page Page Page Page S-Registers Page MT4X56USB 51 Result Codes Page Page Remote Configuration Procedure Setup Changing the Setup Password Changing the Remote Escape Character Remote Configuration Commands Page Page None of the Indicators Light The Modem Does Not Respond to Commands The Modem Dials But Cannot Connect The Modem Disconnects While Online The Modem Cannot Connect When Answering The Modem Doesnt Work with Caller ID Fax and Data Software Cant Run at the Same Time Loopback Tests Local Analog Loopback Test (V.54 Loop 3) Test procedure Remote Digital Loopback Test (V.54 Loop 2) Test procedure Local Digital Loopback Test (V.54 Loop 2) Test Procedure Windows 95/98 Troubleshooting Determining Why USB Support Is Not Present Installing Microsoft USB Support Page Upgrade Overview Step 1: Identify the MT4X56USB Firmware Step 2: Identify the Current Firmware Version Multi-Tech Web Site Step 3: Download the Upgrade File Multi-Tech Web Site Step 4: Extract the Upgrade Files Step 5: Clear Your Stored Paramenters Step 6: Upgrade the Modems Firmware Step 7: Restore Your Parameters Page Software User License Agreement Limited Warranty On-line Warranty Registration Tech Support Recording MT4X56USB Information Contacting Tech Support via E-mail Service Page Appendix A - Regulatory Information Class B Statement FCC Part 15 Industry Canada FCC Part 68 Telecom FAX Branding Statement Canadian Limitations Notice: RINGER EQUIVALENCE NUMBER EMC, Safety and Terminal Directive Compliance Commission Decision "CTR21" New Zealand Telecom Warning Notice International Modem Restrictions Appendix B - V.90 Support Introduction V.90 Troubleshooting Page A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Index Symbols A B C D E F G H M N O P R T U V W X