Gn V.22bis guard tone control | Toshiba Satellite 2450 specification

Appendix C

&Gn V.22bis guard tone control

This command determines which guard tone, if any, to transmit while transmitting in the high band (answer mode). This command is only used in V.22 and V.22bis mode. This option is not used in North America and is for international use only.

&G0 Guard tone disabled (default). &G1 Sets guard tone to 550 Hz. &G2 Sets guard tone to 1800 Hz. Result Codes:

OK n=0,1,2 ERROR Otherwise

&Kn Local flow control selection

&K0 Disable flow control.

&K3 Enable CTS/RTS flow control (default). &K4 Enable XON/XOFF flow control. Result Codes:

OK n=0,3,4 ERROR Otherwise

&Pn Select Pulse Dial Make/Break Ratio (WW)

&P0 Selects 39% - 61% make/break ratio at 10 pulses per second. &P1 Selects 33% - 67% make/break ratio at 10 pulses per second. &P2 Selects 33% - 67% make/break ratio at 20 pulses per second. Result Codes:

OK n=0,1,2 ERROR Otherwise

&Tn Self-test commands

These tests can help to isolate problems if you experience periodic data loss or random errors.

PPENDIXA C

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Toshiba Satellite 2450 user manual Gn V.22bis guard tone control, Kn Local flow control selection, Tn Self-test commands

Contents

Toshiba Copyright DisclaimerTrademarks FCC notice Declaration of Conformity Information FCC information Vcci Class B Information EU Declaration of Conformity informationFCC conditions Contact Modem warning notice Conformity StatementNetwork Compatibility Statement Redial Type of serviceJapan regulations Region selection Fax branding Telephone company proceduresIf problems arise Disconnection Instructions for IC CS-03 certified equipment AT&F AT&W AT%TE=0 ATZ Modem warning notice for Australia Software in addition to a modem Page General conditions Description on Laser specification Page Table of Contents Getting Started Operating BasicsXvi Writing CDs on DVD Multi drive Xvii Power and Power-Up Modes KeyboardXviii HW Setup and Passwords Optional DevicesXix Hardware and system checklist Troubleshooting Glossary Index Appendixes Xxii Preface Manual contents Keys ConventionsAbbreviations Icons Conventions Key operationDisplay Messages Xxvi General Precautions Stress injury Heat injuryPressure or impact damage PC card overheating Central Processing Unit CPU Performance Disclaimer Hardware Equipment checklistIntroduction Chapter Processor FeaturesPower Documentation Disks Features CD-ROM CD-EXTRA Ports DisplayKeyboard Pointing device Multimedia Slots Communications Slim Select BaySecurity Software Special features Battery save mode Special features Utilities Options Options CD-RW/DVD-ROM Slim Select Bay options Controlbuttons Grand TourFront with the display closed Audio/Video Wireless Left sideSecurity lock Left side Shows the computer’s right side Right side Back side Back side LAN jack UniversalSerial Bus Under side Underside Toshiba Front with the display open Front with the display open CD/DVD Digital DC in 15V Power System indicators Keyboard indicators Keyboard indicators USB diskette drive CapsLock indicator Slim Select Bay modules IndicatorSlim Select Bay modules DVD-ROM drive DVD-R/-RW drive CD-RW/DVD-ROM drive DVD Multi drive Toshiba Style Bay Bridge Media Adaptor Slim Select Bay HDD adaptor Black Universal AC adaptor Universal AC adaptor Grand Tour Getting Started Setting up your work space General conditions Placement of the computer Seating and posture Setting up your work space Work habits Lighting Connecting the AC adaptor Connecting the universal AC adaptor Opening the display Turning on the power Starting up for the first time Turning off the powerShut Down mode Boot mode Starting up for the first time Benefits of hibernation Hibernation mode Automatic Hibernation Data save in hibernation modeTurning off the power Starting Hibernation Clickstart, clickTurn Off Computer and clickStand by Standby modeBenefits of standby Executing standby Restarting the computer Standby limitationsRestarting the computer Follow the on-screen instructions Using the Touch Pad Operating BasicsPointing devices Connecting 3 1/2 diskette drive Using the USB diskette drive Changing Slim Select Bay modules Disconnecting 3 1/2 diskette driveChanging Slim Select Bay modules Removing a module Removing the Slim Select Bay module Installing a module Using optical media drives Using optical media drivesLoading discs Manual release with the eject hole Lay the CD/DVD, label side up, in the drawer Closing the DVD-ROM drawer Removing discs Writing CDs on CD-RW/DVD-ROM drive Before writing or rewritingWriting CDs on CD-RW/DVD-ROM drive When writing or rewriting Writing CD/DVDs on DVD-R/-RW drive Writing CD/DVDs on DVD-R/-RW driveImportant message Disclaimer Writing CD/DVDs on DVD Multi drive Read/write function chart DVD-RWDVD Specifications for Re-recordable Disc for Version Writing CD/DVDs on DVD Multi drive Drag’n Drop CD Video DVD-R/-RW/-RAM Data Verification Operating Basics Media care Media careCD/DVDs Diskettes Region selection Modem Modem Properties menu Dialing Properties ConnectingSetting Modem Selection Wireless communications Wireless communicationsDisconnecting Wireless LAN Bluetooth wireless technology SecurityWorldwide operation Radio links Wireless communication switchWireless communication Indicator Indicatorstatus Indication LAN Connecting LAN cable Cleaning the computer Disconnecting LAN cableCleaning the computer Heat dispersal Moving the computer Typewriter keys Keyboard F1 … F12 function keys Soft keys Fn key combinationsEmulating keys on enhanced keyboard Soft keys Fn key combinations Hot keys Soft keys Fn key combinations Display clarity increases with the brightness level Fn Sticky key Arrow modeWindows special keys Keypad overlay Numeric mode Temporarily using normal keyboard overlay on Generating Ascii characters Temporarily using overlay overlay offGenerating Ascii characters Temporarily changing modes Keyboard Power conditions Power and Power-Up Modes Battery indicators Power indicators Battery pack Battery typesDC in indicator Power indicator Real Time Clock battery Care and use of the battery pack Safety precautionsCare and use of the battery pack Modes Care and use of the battery pack Time ProceduresCharging time hours Battery type Power on Power off Charging the batteries Battery charging notice Monitoring battery capacity Maximizing battery operating time Extending battery life Retaining data with power off Removing the battery pack Replacing the battery pack Replacing the battery pack Installing the battery pack Securing the battery cover Starting the computer by password System Auto Off Power-up modesPanel power off Power-up modes Modes HW Setup window HW Setup and PasswordsHW Setup Accessing HW Setup Power On Display Boot Priority Enter HW Setup Network Boot Protocol USB General Password Password was registered Key FD Device Config Supervisor password Supervisor passwordParallel/Printer Passwords Peripheral devices Power devicesOptional Devices Cards/memory Inserting a PC card PC cards PC cards Removing a PC card Inserting an SD card SD cards Removing an SD card SD card careSD cards Memory expansion Installing memory module Removing the keyboard brace Memory expansion Removing the keyboard Raising the insulation sheet 11 Installing a memory module Removing memory module 13 Removing the memory module Toshiba Style Bay Bridge media adaptor Before installing InsertingToshiba Style Bay Bridge media adaptor 16 Secureing a screw Removing Write protection SmartMedia 18 Inserting a SmartMedia Installing a Memory Stick Memory StickRemoving a Memory Stick Installing a Compact Flash module Compact FlashRemoving a Compact Flash memory module Slim Select Bay HDD adaptor Black Battery pack BlackUSB FDD kit Bridge media care 22 Opening the lid Slim Select Bay HDD adaptor Black 24 Closing the lid External monitor Using the TV button Changing the resolutionClick start and click Control Panel 25 Display properties Link IEEE1394 Link IEEE1394 Precautions Point to i.LINK IEEE1394 device and click Security lock 28 Security lock Security lock Troubleshooting Problem solving processPreliminary checklist Analyzing the problem Hardware and system checklist Hardware and system checklistSystem start-up Self test Power Overheating power down AC powerProblem Procedure Slim Select Bay Battery LCD panel Password Hard disk drive DVD-ROM CD-RW/DVD-ROM drive Hardware and system checklist DVD-R/-RW drive DVD Multi drive EXTRA,CD-GAudioCDonly SD card Diskette drive Infrared port PC card Pointing device Touch PadClick the Pointer Options tab USB mouse ProblemProcedure Memory expansion USB Monitor Sound system Modem Link IEEE1394 No Carrier LAN Real Time Clock Bluetooth Toshiba support Where to writeToshiba support Before you call InEurope Environmental Requirements SpecificationsPower Requirements Appendix a Communicationspecifications Display Controller and Modes Display controllerAppendix B Video modes VGA Video modes Appendix B Video modes XGA Appendix B Video modes XGA Video modes Super XGA+ Video modes Super XGA+ Appendix B Appendix B +++ Escape sequence AT CommandsRepeat last command Appendix C Answer command Bn Communication standard settingDn Dial Appendix C En Echo commandHn Hook control Request ID information Ln Monitor speaker volume Mn Monitor speaker modeNn Modulation handshake On Return on-line to data mode Select pulse dialingQn Result code control Select tone dialing Vn DCE response formatXn Result code selection, call progress monitoring Cn Data Carrier Detect DCD control Dial tone detectBusy tone detect Zn Recall stored profile Dn DTR control Load factory settings Pn Select Pulse Dial Make/Break Ratio WW Tn Self-test commandsGn V.22bis guard tone control Kn Local flow control selection Display Current Configuration Store current configurationZn=x Store telephone number \Qn Local flow control selection \Nn Error control mode selection \Vn Protocol result code View numbers in blacklistCn Data compression control ATSn? RegistersRegister values Appendix D S2 AT escape character user defined S3 Command line termination character user definedS0 Auto answer ring number S1 Ring counter Appendix D S5 Command line editing character user definedS4 Response formatting character user defined S6 Wait before dialing S12 Escape guard time S7 Connection completion time-outS8 Comma pause time S11 Dtmf dialing speed S37 Dial line rate Result Code Numeric Description AT command set result codes Delayed Appendix D Mode Appendix EFunction Transmissionspeed Table E-1 Result codes for a V.90 connection Appendix E AT Command Appendix E Appendix F Installing the internal modemInstalling the modem board and jack Internal Modem Guide Removing the internal modem Appendix G Wireless LANCard Specifications Radio Characteristics Wireless Ieee 802.11 Channels Sets Revision B Supported Frequency Sub-bands2457 Appendix G Wireless Ieee 802.11 Channels Sets Revision a Wireless Channels Sets Turbo Mode Appendix H AC Power Cord Connectors Australia Europe USA and Canada Appendix Parts Numbers Configurations Glossary AbbreviationsGlossary-1 Glossary-2 Adaptor Glossary-3 Cache memory Glossary-4 Capacity Glossary-5 Dielete Glossary-6 Device driver Glossary-7 Hard disk drive HDD Glossary-8 Hardware Glossary-9 Menu Glossary-10 Microprocessor Glossary-11 Prompt Glossary-12 Radio frequency interference RFI shield Glossary-13 Write protection Glossary-14 Glossary Index IndexIndex-1 Index-2 Index-3 Index-4 Index-5 Index-6