Multi-Tech Systems MT4X56USB manual Kn Break Control, Nn Error Correction Mode Selection

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MultiModemUSB User Guide

Command:

\Kn

Break Control

Values:

 

n = 0–5

Default:

 

5

Description:

 

Controls the response of the modem to a break received from the computer, the remote modem,

 

 

or the \B commnd. The response is different for each of three different states.

 

 

Data mode. The modem receives the break from the computer:

 

\K0

Enter online command mode, no break sent to the remote modem.

 

\K1

Clear data buffers and send break to the remote modem.

 

\K2

Same as \K0.

 

\K3

Send break immediately to the remote modem .

 

\K4

Same as \K0.

 

\K5

Send break to the remote modem in sequence with the transmitted data.

 

 

Data mode. The modem receives the break from the remote modem:

 

\K0

Clear data buffers and send break to the computer.

 

\K1

Same as \K0.

 

\K2

Send break immediately to the computer.

 

\K3

Same as \K2.

 

\K4

Send break to the computer in sequence with the received data.

 

\K5

Same as \K4.

 

 

Online command mode. The modem receives a \Bn command from the computer:

 

\K0

Clear data buffers and send break to the remote modem.

 

\K1

Same as \K0.

 

\K2

Send break immediately to the remote modem.

 

\K3

Same as \K2.

 

\K4

Send break to the remote modem in sequence with the transmitted data.

 

\K5

Same as \K4.

Command:

\Nn

Error Correction Mode Selection

Values:

 

n = 0–5, or 7

Default:

 

3

Description:

\N0

Non-error correction mode with data buffering (buffer mode; same as &Q6).

 

\N1

Direct mode.

 

\N2

MNP reliable mode. If the modem cannot make an MNP connection, it disconnects.

 

\N3

V.42/MNP auto-reliable mode. The modem attempts first to connect in V.42 error correction mode,

 

 

then in MNP mode, and finally in non-error-correction (buffer) mode with continued operation.

 

\N4

V.42 reliable mode.If the modem cannot make a V.42 connection, it disconnects.

 

\N5

V.42, MNP, or non-error correction (same as \N3).

 

\N7

V.42, MNP, or non-error correction (same as \N3).

Command:

\Qn

Flow Control Selection

Values:

 

n = 0, 1, or 3

Default:

 

3

Description:

\Q0

Disable flow control (same as &K0).

 

\Q1

XON/XOFF software flow control (same as &K4).

 

\Q2

CTS-only flow control. Not supported.

 

\Q3

RTS/CTS hardware flow control (same as &K3).

Command:

\Tn

Inactivity Timer

Values:

 

n = 0, 1–255

Default:

 

0

Description:

\Tn

Sets the time (in minutes) after the last character is sent or received that the modem waits before

 

 

disconnecting. A value of zero disables the timer. Applies only in buffer mode.

Note: You can also set the inactivity timer by changing the value of S30.

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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