Lucent Technologies 7400B manual Ats3= ddd Enter

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CHAPTER 4: OPERATION AND CONFIGURATION

DEFINITY Communications System

	7400B Data Module
Page 4-4	User’s Guide

Note: A special application may require choosing a different line terminating character, accomplished by issuing the command:

ats3= ddd [ Enter ]

where ddd is a 1- to 3-digit decimal representation of the ASCII character with a range of 0 through 127 (see ASCII Character Set in Appendix D).

Caution: Before changing this or any other default ASCII character, make certain that your terminal device will recognize the new character.

If you make an error while typing a command line, you can send the backspace character, usually issued by pressing the [ Backspace ] key, as often as needed to delete the error. However, as soon as you enter the AT prefix, the data module immediately reads it and sets up for a command to follow. Hence, you cannot delete the AT prefix once it is typed.

The factory-default backspace character is an ASCII backspace, represented by the decimal number 008 which is stored in S-register S05.

Note: A special application may require choosing a different backspace character, accomplished by issuing the command:

ats5=ddd [ Enter ]

where ddd is a 1- to 3-digit decimal representation of the ASCII character with a range of 0 through 127 (see ASCII Character Set in Appendix D).

Caution: Before changing this or any other default ASCII character, make certain that your terminal device will recognize the new character.

Once you complete a command line by pressing [ Enter ], the data module will try to interpret all characters on the command line as valid commands. If the data module finds a character that is not a valid command, it will ignore the erroneous character and any remaining characters on the command line; if it finds an incorrect parameter for a valid command, the data module will issue the ERROR result code and ignore any remaining characters.

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Contents AT&T 7400B Data Module To Order Copies of this Manual Contents Preface about this Guide 1C-1C-2C-5C-8 Organization of this TypographicalConventions GuideAppendix D Quick-Reference Summaries. Contains quick Troubleshooting. Describes procedures forAppendix C Application Notes. Contains notes on how to RelatedIntroduction External Features Front PanelConnector Description Front Panel LED Indicator DescriptionsRear Panel Connector Descriptions Rear PanelPower Supply Unit Software HardwareRequirements Typical Standalone Installation Typical Installation with Telephone Installation Installation Selecting DIP-Switch Options With/Without Telephone Option SW1-1Data Metering Option SW1-5 InstallationMake Busy on Local Loop Option SW1-8 Telephone SW1-1 Factory-defaultOption DIP Switch Settings Data Metering SW1-5Accessing the Hardware Option Switches Connecting the EIA-232-D Cable Connecting the Power SupplyIf YOU are Using a Power-Up Self-TestIf YOU are Using a PC Dedicated TerminalCharacter Formats Line or data modeOperating Modes Data Bits Parity Stop BitsEssential AT Commands AT Command Subset AT Command DescriptionMore AT Command Subset Contd ConnectBusy Sample ON-LINE Session Starting the SessionNo Carrier Selection +++ Operation and Configuration Configuration ParametersCommand Line Action Command Buffer Issuing CommandsCommand Line Prefix Command Line Set UpAts3= ddd Enter Verbose Form Numeric Description CommandAcknowledgement Result CodesFrom Data Mode to Command Mode and Back Dialing a Number Multiple CharactersFollowing is an example Commands for Using Stored Telephone Numbers At&z m=nnn...n EnterConfiguration Recall ResetRemote Site USE At&f Enter HOW to USE this ChapterSymptom Problem Solution PBXCheck Speed LED At&d2 Enter Terminate the local loopback test by typing Atq0 o Enter Atx4 Enter Appendix a AT Command SET LabelDescriptionContd Escape sequence Immediate None Arguments none CommandAArguments none Registernone Examplea CommandD Command Function Switch hook control Command Function Type Arguments Register Example Comments Ato EnterAtv Enter A-10 User’s Guide Reset and recall a stored profile Data Carrier Detect DCD options Data Terminal Ready DTR options Command&F Arguments none Registernone ExampleAt&t3 Enter see comment At&v Enter Command&Y Registernone ExampleAt&z2=555-1212 Enter 055 Description Range Values Comments See Also Storable Register DescriptionStorable Comments From a data terminal Register S6 not used Register S8 not used S9 not used Register S11 not used Register S13 not usedRegister Description Range Values Storable Comments See Also Register S15 not usedRegister S17 not used Values Storable Register S19 not used S20 not usedRegisterS21 Range of Values Storable Comments See AlsoBits 0 and 1 not used default = 2, see comment Register S24 not used Register S27 not used PBX Application Notes PC Applications Guide AT&T 7400B Data Module PC Application Guide, ordering numberSelect Modem Options Configuring the SoftwareProcomm Plus Select Result MessagesSelect Save Setup Options Placing a CallDisconnecting Call C-4Placing a Call Directly Relay GoldSelect Call a Host Directory AttmailDisconnecting a Call Press Esc to return to the Online menu as shown belowCrosstalk Select the letter next to Hayes Smartmodem all modelsSelect the baud rate that you will use most often Bye Enter Appendix D QUICK-REFERENCE Summaries Table D-1 AT Command SET Command DescriptionSr=n Table D-1 AT Command SET Contd Register Description Range/Unit Table D-2 S-REGISTER SummaryConnected Table D-3 Result CodesTable D-4 FACTORY-DEFAULT Configuration Parameter Value AT CommandR e Table D-4 FACTORY-DEFAULT Configuration Contd Parameter Value RegisterPin Circuit Direction Function Table D-5 EIA-232-D PIN AssignmentsAscii Control KEY Value Character Table D-6 Ascii Character SETTable D-6 Ascii Character SET Contd Glossary Glossary Script files. See command files Index DTE, see Data Terminal Device DTR lead Data MeteringRear panel, 1-4Remote site use AT&T Important Safety Instructions Page Important Installation Safety Instructions