Multi-Tech Systems MT4X56USB Back Panel, RJ-ll Modem Connector, USB Type a Upstream Connector

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MultiModemUSB User Guide

Back Panel

The cable connections for the MT4X56USB are made at the back panel. Three groups of cables are used; four ports for RJ-11 modem connections, two types of USB connections, and a power connection. The cable connections are shown in Figure 1-3 and defined in the following groups.

Port 1	Port 2	Port 3	Port 4
			USB - A	USB - B	POWER

Figure 1-3. Back Panel

RJ-ll Modem Connector

The four RJ-11 modem connectors connect the MT4X56USB to computers or network servers.

USB Type A (Upstream) Connector

The USB Type A (Upstream) connector connects the MT4X56USB to devices where the external cable is permanently attached (e.g., input hubs or other MT4X56USBs).

USB Type B (Downstream) Connector

The USB Type B (Downstream) connector connects the MT4X56USB to devices where the external cable is detachable (e.g., peripherals such as computers, printers, scanners, modems, or output hubs, etc.).

Power Connector

The power is supplied by a UL Listed Direct Plug-In Power Unit marked “Class 2” and rated 5V DC/5A, 100-240V, 47-63Hz if used in the U.S. and Canada; or, a power supply with similar rating and approved by your local safety code if it is used elsewhere.

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MT4X56USB

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Contents MultiModemUSB Model MT4X56USB User GuidePatents User GuideRecord of Revisions TrademarksContents Glossary of Terms Index Introduction and Description Introduction FeaturesMultiModemUSB User Guide Preview of this Guide Technical SpecificationsInstallation Introduction and DescriptionRelated Documentation Hub Front PanelModem Ports Ports 1, 2, 3, SystemUSB Type B Downstream Connector RJ-ll Modem ConnectorUSB Type a Upstream Connector Power ConnectorInstallation Safety Warning Telecom UnpackingInstallation Cabling your MT4X56USBMT4X56USB Software Loading and Configuration Loading your Driver Software System USB SupportMT4X56USB Drivers for Windows Software Loading and Configuration Uninstalling MultiModemUSB in Windows MT4X56USB Drivers for Windows Uninstalling MultiModemUSB in Windows MultiModemUSB Drivers Install dialog box displays Click Next MT4X56USB Drivers for Windows NTSelect Add/Remove Programs Uninstalling MultiModemUSB in Windows NTAdd/Remove MT4X56USB Drivers for Windows Click Finish Software Loading and Configuration Select Add/Remove Hardware Installing Your V.90 Modems Click Start Settings Control Panel ModemsRead Carefully Software Loading and Configuration MT4X56USB Installing Your V.90 Modems Windows Click Start Settings Control Panel Phone and Modems optionMT4X56USB Software Loading and Configuration Windows 95/98 Configuration Utility MT4X56USB Windows NT 4.0/2000 Configuration Utility MT4X56USB MT4X56USB AT Commands, S-Registers and Result Codes Repeat Last Command AT Command SummaryCommand Enter Key AnswerAT Commands, S-Registers and Result Codes Information Request Return Online to Data ModeResult Codes Enable/Disable Modulation HandshakeTone Dialing Modem ResetLoad Factory Settings Result Code FormatTest Commands Communications ModeAsynchronous Communications Mode Display Current SettingsCommand &Zy=x Store Dialing Command Store Current ConfigurationSelect Stored Configuration for Hard Reset \An Select Maximum MNP Block Size\Kn Break Control \Nn Error Correction Mode Selection\Tn Inactivity Timer \Qn Flow Control SelectionEnter Setup Password Command %DCn AT Command ControlCommand %En Fallback and Fall Forward Control Command #S=x Store Setup PasswordCommand +++ATCR Escape Sequence Command %%%ATCRRemote Configuration Escape SequenceRegister Unit Range Default Description RegistersS38 Upstream data ratesResult Codes Terse Verbose DescriptionFor more information on scripting, click the Help button Remote Configuration Setup Remote Configuration ProcedureChanging the Setup Password Remote Configuration and Management Remote Configuration CommandsChanging the Remote Escape Character MT4X56USB Troubleshooting Modem Does Not Respond to Commands None of the Indicators LightModem Dials But Cannot Connect Troubleshooting Modem Disconnects While OnlineModem Doesn’t Work with Caller ID Modem Cannot Connect When AnsweringLoopback Tests Fax and Data Software Can’t Run at the Same TimeTest procedure Local Analog Loopback Test V.54 LoopRemote Digital Loopback Test V.54 Loop Remote digital loopback testLocal Digital Loopback Test V.54 Loop Local digital loopback testInstalling Microsoft USB Support Windows 95/98 TroubleshootingDetermining Why USB Support Is Not Present Double-click the Universal Serial Bus Controller iconUpgrade Procedure Identify the Current Firmware Version Upgrade OverviewIdentify the MT4X56USB Firmware Multi-Tech Web SiteUpgrade Procedure Download the Upgrade FileExtract the Upgrade Files Clear Your Stored ParamentersUpgrade the Modem’s Firmware Restore Your ParametersService, Warranty and Tech Support Software User License Agreement Service, Warranty and Tech Support Limited WarrantyOn-line Warranty Registration Tech SupportService Contacting Tech Support via E-mailAppendices FCC Part Appendix a Regulatory InformationClass B Statement Industry CanadaFCC Part 68 Telecom AppendicesFAX Branding Statement Canadian Limitations NoticeNew Zealand Telecom Warning Notice EMC, Safety and Terminal Directive ComplianceCommission Decision CTR21 International Modem RestrictionsAppendix B V.90 Support TroubleshootingIntroduction Glossary of Terms MT4X56USB Glossary MT4X56USB Glossary MT4X56USB Glossary MT4X56USB Glossary MT4X56USB Glossary MT4X56USB Glossary MT4X56USB Index IndexConfiguration MT4X56USB Software user license agreement Speed