Dn DTR control, Load factory settings | Toshiba Satellite 2450

APPENDIX C

User's Manual

&C1 DCD turns on when the remote modem’s carrier signal is detected, and off when the carrier signal is not detected (default).

Result Codes:

OK n=0,1 ERROR Otherwise

&Dn DTR control

This command interprets how the modem responds to the state of the DTR signal and changes to the DTR signal.

&D0 Ignore. The modem ignores the true status of DTR and treats it as always on. This should only be used if your communica- tion software does not provide DTR to the modem

&D1 If the DTR signal is not detected while in on-line data mode, the modem enters command mode, issues an OK result code, and remains connected.

&D2 If the DTR signal is not detected while in on-line data mode, the modem disconnects (default).

&D3 Reset on the on-to-off DTR transition. Result Codes:

OK n=0,1,2,3 ERROR Otherwise

&F Load factory settings

This command loads the configuration stored and programmed at the factory. This operation replaces all of the command options and the S- register settings in the active configuration with factory values.

&F Recall factory setting as active configuration.

C-8

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Toshiba Satellite 2450 user manual Dn DTR control, Load factory settings

Contents

Toshiba Trademarks CopyrightDisclaimer FCC information FCC notice Declaration of Conformity Information Contact EU Declaration of Conformity informationFCC conditions Vcci Class B Information Network Compatibility Statement Modem warning noticeConformity Statement Region selection Type of serviceJapan regulations Redial Disconnection Telephone company proceduresIf problems arise Fax branding Instructions for IC CS-03 certified equipment Modem warning notice for Australia AT&F AT&W AT%TE=0 ATZ Software in addition to a modem Page General conditions Description on Laser specification Page Table of Contents Xvi Getting StartedOperating Basics Xvii Writing CDs on DVD Multi drive Xviii Power and Power-Up ModesKeyboard Xix HW Setup and PasswordsOptional Devices Troubleshooting Hardware and system checklist Appendixes Glossary Index Xxii Manual contents Preface Icons ConventionsAbbreviations Keys Messages Key operationDisplay Conventions Xxvi Pressure or impact damage General PrecautionsStress injury Heat injury Central Processing Unit CPU Performance Disclaimer PC card overheating Chapter Equipment checklistIntroduction Hardware Documentation FeaturesPower Processor Features Disks CD-ROM CD-EXTRA Pointing device DisplayKeyboard Ports Slots Multimedia Security CommunicationsSlim Select Bay Special features Software Special features Battery save mode Utilities Options Options Slim Select Bay options CD-RW/DVD-ROM Audio/Video Grand TourFront with the display closed Controlbuttons Security lock WirelessLeft side Left side Right side Shows the computer’s right side Back side Back side Serial Bus LAN jackUniversal Underside Under side Front with the display open Toshiba Front with the display open System indicators CD/DVD Digital DC in 15V Power Keyboard indicators Keyboard indicators CapsLock indicator USB diskette drive DVD-ROM drive IndicatorSlim Select Bay modules Slim Select Bay modules CD-RW/DVD-ROM drive DVD-R/-RW drive DVD Multi drive Slim Select Bay HDD adaptor Black Toshiba Style Bay Bridge Media Adaptor Universal AC adaptor Universal AC adaptor Grand Tour Setting up your work space Getting Started Placement of the computer General conditions Setting up your work space Seating and posture Lighting Work habits Connecting the universal AC adaptor Connecting the AC adaptor Turning on the power Opening the display Starting up for the first time Turning off the powerShut Down mode Boot mode Starting up for the first time Hibernation mode Benefits of hibernation Starting Hibernation Data save in hibernation modeTurning off the power Automatic Hibernation Executing standby Standby modeBenefits of standby Clickstart, clickTurn Off Computer and clickStand by Restarting the computer Restarting the computerStandby limitations Follow the on-screen instructions Pointing devices Using the Touch PadOperating Basics Using the USB diskette drive Connecting 3 1/2 diskette drive Removing a module Disconnecting 3 1/2 diskette driveChanging Slim Select Bay modules Changing Slim Select Bay modules Installing a module Removing the Slim Select Bay module Loading discs Using optical media drivesUsing optical media drives Manual release with the eject hole Lay the CD/DVD, label side up, in the drawer Removing discs Closing the DVD-ROM drawer Writing CDs on CD-RW/DVD-ROM drive Writing CDs on CD-RW/DVD-ROM driveBefore writing or rewriting When writing or rewriting Disclaimer Writing CD/DVDs on DVD-R/-RW driveImportant message Writing CD/DVDs on DVD-R/-RW drive 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 Data Verification Video DVD-R/-RW/-RAM Operating Basics Diskettes Media careCD/DVDs Media care Modem Region selection Properties menu Modem Modem Selection ConnectingSetting Dialing Properties Wireless LAN Wireless communicationsDisconnecting Wireless communications Worldwide operation Bluetooth wireless technologySecurity Indicatorstatus Indication Wireless communication switchWireless communication Indicator Radio links Connecting LAN cable LAN Cleaning the computer Cleaning the computerDisconnecting LAN cable Moving the computer Heat dispersal Keyboard Typewriter keys Emulating keys on enhanced keyboard F1 … F12 function keysSoft keys Fn key combinations Soft keys Fn key combinations Hot keys Soft keys Fn key combinations Display clarity increases with the brightness level Keypad overlay Arrow modeWindows special keys Fn Sticky key Temporarily using normal keyboard overlay on Numeric mode Temporarily changing modes Temporarily using overlay overlay offGenerating Ascii characters Generating Ascii characters Keyboard Power and Power-Up Modes Power conditions Power indicators Battery indicators Power indicator Battery typesDC in indicator Battery pack Real Time Clock battery Care and use of the battery pack Care and use of the battery packSafety precautions Modes Care and use of the battery pack Charging the batteries ProceduresCharging time hours Battery type Power on Power off Time Monitoring battery capacity Battery charging notice Maximizing battery operating time Retaining data with power off Extending battery life Replacing the battery pack Removing the battery pack Installing the battery pack Replacing the battery pack Starting the computer by password Securing the battery cover Power-up modes Power-up modesPanel power off System Auto Off Modes Accessing HW Setup HW Setup and PasswordsHW Setup HW Setup window Boot Priority Power On Display HW Setup Enter Network Boot Protocol USB Password General Password was registered Device Config Key FD Parallel/Printer Supervisor passwordSupervisor password Passwords Cards/memory Power devicesOptional Devices Peripheral devices PC cards Inserting a PC card Removing a PC card PC cards SD cards Inserting an SD card SD cards Removing an SD cardSD card care Installing memory module Memory expansion Memory expansion Removing the keyboard brace Removing the keyboard Raising the insulation sheet 11 Installing a memory module Removing memory module Toshiba Style Bay Bridge media adaptor 13 Removing the memory module Toshiba Style Bay Bridge media adaptor Before installingInserting Removing 16 Secureing a screw SmartMedia Write protection 18 Inserting a SmartMedia Removing a Memory Stick Installing a Memory StickMemory Stick Removing a Compact Flash memory module Installing a Compact Flash moduleCompact Flash Bridge media care Battery pack BlackUSB FDD kit Slim Select Bay HDD adaptor Black Slim Select Bay HDD adaptor Black 22 Opening the lid External monitor 24 Closing the lid Click start and click Control Panel Using the TV buttonChanging the resolution Link IEEE1394 25 Display properties Precautions Link IEEE1394 Security lock Point to i.LINK IEEE1394 device and click Security lock 28 Security lock Preliminary checklist TroubleshootingProblem solving process Analyzing the problem System start-up Hardware and system checklistHardware and system checklist Power Self test Problem Procedure Overheating power downAC power Battery Slim Select Bay Password LCD panel Hard disk drive DVD-ROM CD-RW/DVD-ROM drive Hardware and system checklist DVD-R/-RW drive DVD Multi drive EXTRA,CD-GAudioCDonly Diskette drive SD card PC card Infrared port Click the Pointer Options tab Pointing deviceTouch Pad ProblemProcedure USB mouse USB Memory expansion Sound system Monitor Link IEEE1394 Modem No Carrier LAN Bluetooth Real Time Clock Before you call Where to writeToshiba support Toshiba support InEurope Appendix a SpecificationsPower Requirements Environmental Requirements Communicationspecifications Appendix B Display Controller and ModesDisplay controller Video modes Video modes VGA Appendix B Video modes XGA Appendix B Video modes XGA Video modes Super XGA+ Video modes Super XGA+ Appendix B Appendix B Appendix C AT CommandsRepeat last command +++ Escape sequence Dn Dial Answer commandBn Communication standard setting Request ID information En Echo commandHn Hook control Appendix C Nn Modulation handshake Ln Monitor speaker volumeMn Monitor speaker mode Qn Result code control On Return on-line to data modeSelect pulse dialing Xn Result code selection, call progress monitoring Select tone dialingVn DCE response format Zn Recall stored profile Dial tone detectBusy tone detect Cn Data Carrier Detect DCD control Load factory settings Dn DTR control Kn Local flow control selection Tn Self-test commandsGn V.22bis guard tone control Pn Select Pulse Dial Make/Break Ratio WW Zn=x Store telephone number Display Current ConfigurationStore current configuration \Nn Error control mode selection \Qn Local flow control selection Cn Data compression control \Vn Protocol result codeView numbers in blacklist Appendix D RegistersRegister values ATSn? S1 Ring counter S3 Command line termination character user definedS0 Auto answer ring number S2 AT escape character user defined S6 Wait before dialing S5 Command line editing character user definedS4 Response formatting character user defined Appendix D S11 Dtmf dialing speed S7 Connection completion time-outS8 Comma pause time S12 Escape guard time S37 Dial line rate AT command set result codes Result Code Numeric Description Delayed Appendix D Function Transmissionspeed ModeAppendix E Table E-1 Result codes for a V.90 connection AT Command Appendix E Appendix E Internal Modem Guide Installing the internal modemInstalling the modem board and jack Appendix F Removing the internal modem Radio Characteristics Wireless LANCard Specifications Appendix G 2457 Wireless Ieee 802.11 Channels Sets Revision BSupported Frequency Sub-bands Wireless Ieee 802.11 Channels Sets Revision a Appendix G Wireless Channels Sets Turbo Mode AC Power Cord Connectors Appendix H USA and Canada Australia Europe Parts Numbers Appendix Configurations Glossary-1 GlossaryAbbreviations Adaptor Glossary-2 Cache memory Glossary-3 Capacity Glossary-4 Dielete Glossary-5 Device driver Glossary-6 Hard disk drive HDD Glossary-7 Hardware Glossary-8 Menu Glossary-9 Microprocessor Glossary-10 Prompt Glossary-11 Radio frequency interference RFI shield Glossary-12 Write protection Glossary-13 Glossary Glossary-14 Index-1 IndexIndex Index-2 Index-3 Index-4 Index-5 Index-6