AT&T 7400B Plus User Manual
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AT&T 7400B Plus User Manual

AT&T 7400B Plus User Manual

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7400B Plus Data Module
User's Guide
AT&T 555-020-710
Issue 2
May 1991

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Summary of Contents for AT&T 7400B Plus

  • Page 1 7400B Plus Data Module User’s Guide AT&T 555-020-710 Issue 2 May 1991...

  • Page 2: Issue

    NOTICE While reasonable efforts were made to ensure that the information in this document was complete and accurate at the time of printing, AT&T can assume no responsibility for any errors. Changes or corrections to the information contained in this document may be incorporated into future reissues. TO ORDER COPIES OF THIS MANUAL Call: AT&T Customer Information Center on 800-432-6600...

  • Page 3: Table Of Contents

    Contents PREFACE: ABOUT THIS GUIDE Typographical Conventions Organization of This Guide Related Documentation CHAPTER 1: INTRODUCTION Overview Features Physical Description CHAPTER 2: INSTALLATION Hardware and Software Requirements Hardware Installation Initial System Checks If You Are Using a PC If You Are Using a Dedicated Terminal CHAPTER 3: CONFIGURATION AND OPERATION Operating Modes Issuing Commands...
  • Page 4 Relay Gold - Release 3.0 SideKick Plus Smartcom II - prior to Version 3.1 Smartcom II - V 3.1 Smartcom II - V 3.1 (Macintosh) Smartcom III - V 1.1 Smarterm 240 - V3.0a AT&T Terra Nova - V1.1.1 White Knight - V 11 CHAPTER 5: TROUBLESHOOTING How to Use This Chapter APPENDIX A: AT COMMAND SET...

  • Page 5: Preface: About This Guide

    The purpose of this guide is to provide information for installing, operating, and maintaining the 7400B Plus Data Module. Note: The 7400B Plus Data Module will be referred to as the "7400B Plus" throughout this guide. Throughout this guide, command lines that you type are shown in typewriter-style characters, and responses that the 7400B Plus returns are shown in italics.

  • Page 6: Related Documentation

    A glossary and an index are provided at the rear of this guide. The following is a list of other manuals that may provide helpful information while installing and using the 7400B Plus. Since each user may have different equipment and software preferences or availability, only generic titles are given for the manuals.

  • Page 7: Chapter 1: Introduction

    This chapter discusses the basic operating features of the 7400B Plus and describes the external indicators and connectors. The 7400B Plus is a new version of the 7400B Data Module. It is fully compatible with the 7400B and supports all of its functionality and applications.

  • Page 8: Features

    EIA-232-D interface (formerly called the RS-232-C), and a Digital Communications Protocol (DCP) interface (using a type D8W modular telephone cord) is used to connect the 7400B Plus to the digital PBX. An internal DIP-switch allows the 7400B Plus to be optioned for use either with or without a telephone.
  • Page 9 DEFINITY Communications System 7400B Plus Data Module User´s Guide Additional features of the 7400B Plus include the following: non-volatile, read-write memory for storing two data options profiles and up to four telephone numbers an ‘‘AT’’ command interface that emulates a Hayes 2400...

  • Page 10: Physical Description

    Chapter 2, "Installation." The front panel of the 7400B Plus is shown in Figure 1-1, and the 10 LEDs on the front panel are described in Table 1-1. In addition...
  • Page 11 This red LED normally indicates that power is applied to the 7400B Plus. TEST This LED flashes during any test mode, except the start-up self-test. It also flashes along with the DATA LED when the 7400B Plus is unable to communicate with the PBX. DATA...
  • Page 12 This connector accepts a male plug from the EIA-232-D (or RS-232-C) cable that connects between the 7400B Plus and the terminal device. The rear panel of the 7400B Plus is shown in Figure 1-2, and the connectors located on the rear panel are described in Table 1-2.
  • Page 13 7400B Plus Data Module User´s Guide Power Supply Unit A separate power supply unit is shipped with the 7400B Plus. This unit connects between a grounded AC outlet and the ‘‘POWER’’ connector at the rear of the 7400B Plus. This power supply unit provides the necessary operating voltages for the 7400B Plus.
  • Page 14 DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 15: Chapter 2: Installation

    This chapter describes the equipment required for installing the 7400B Plus, and outlines procedures for preparing the 7400B Plus for operation. If you are using the 7400B Plus with a PC, you will be ready to use a PC communications package after reading this chapter.
  • Page 16 CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Plus Data Module Page 2-2 User´s Guide 7407D01A...
  • Page 17 (optional) a second type D8W cord to connect between the 7400B Plus ‘‘PHONE’’ jack and optional voice terminal (you may need an adjunct power supply, adapter, and D6AP cord, if applicable)
  • Page 18 CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Plus Data Module Page 2-4 User´s Guide Artwork to be supplied Figure 1 Typical Standalone Installation...
  • Page 19 DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Plus Data Module User´s Guide Page 2-5 Artwork to be supplied Figure 2 Typical Installation with Telephone...
  • Page 20 CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Plus Data Module Page 2-6 User´s Guide Artwork to be supplied Figure 3 Typical Installation with Telephone and Adjunct...
  • Page 21 You must set the appropriate configuration options before connecting the 7400B Plus to a printer or plotter. To do this, connect a data terminal or PC to Port 1 of the 7400B Plus, change and store the necessary configuration parameters, remove the data terminal or PC, and then connect the printer or plotter.
  • Page 22 Local mode. Also called direct mode, terminal mode, dumb terminal mode or chat mode, this feature allows you to issue AT commands to the 7400B Plus to configure its options. Dialing directory. This feature allows you to store several frequently called numbers, often along with configuration of the data options needed for completing the connection.
  • Page 23 ‘‘OFF’’) enables simultaneous data and voice service over the same line from the PBX. When the 7400B Plus is optioned for operation with a telephone, a 7400 series DCP voice terminal must be connected to the 7400B Plus.
  • Page 24 7400B Plus is in the idle mode or as soon as it is returned to the idle mode. The 7400B Plus is in idle mode any time that it is not in test mode or connected to an active data call.

  • Page 25: Hardware Installation

    A change in the setting of this option becomes effective immediately when the 7400B Plus is in the idle mode or as soon as it is returned to the idle mode. The 7400B Plus is in idle mode any time that it is not connected to an active data call.
  • Page 26 Suppress Touch-Tone/Dial Tone On—enabled Off—disabled (factory-default) Speakerphone Disable/Enable On—disabled Off—enabled (factory-default) Busy Out on Local Loop On—enabled Off—disabled (factory-default) * Applies to voice dial calls only. DEFINITY Communications System 7400B Plus Data Module User´s Guide SW1-1 SW1-5 SW1-6* SW1-7* SW1-8...
  • Page 27 Lift and remove the access panel. If a ROM board is installed just inside the access opening of the 7400B Plus, grasp the edges of the ROM board inside the access opening and lift the board out of its socket.
  • Page 28 CHAPTER 2: INSTALLATION Page 2-14 To access and set the DIP-switch options, refer to Figure 2-4 and perform the following: Artwork to be supplied DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 4 Accessing the DIP Switches...
  • Page 29 Insert a male connector of the EIA-232-D cable into the connector labeled PORT on the rear panel of the 7400B Plus. Tighten both connector retaining screws. Insert the other end of the EIA-232-D cable into the communications port connector on the terminal device.
  • Page 30 CHAPTER 2: INSTALLATION Page 2-16 Connecting the Power Supply Connect the separate power supply unit to the 7400B Plus as follows: Insert the output connector of the power supply into the connector on the rear panel of the 7400B Plus labeled ‘‘POWER.’’...

  • Page 31: Initial System Checks

    PC as your terminal device. A dedicated data terminal does not need PC communications software. When power is first applied to the 7400B Plus, the unit performs a self-test to determine that it is in working order. The progression of the self-test is indicated by the sequential, left-to-right lighting of the 10 front-panel LEDs.

  • Page 32: If You Are Using Adedicated Terminal

    7400B Plus, refer to Chapter 3, "Configuration and Operation." When a dedicated terminal is used with a 7400B Plus, you must control the operation of the 7400B Plus. In a way, you are acting as a PC communication package. To do this, you must understand the operation of the 7400B Plus.

  • Page 33: Chapter 3: Configuration And Operation

    AT as the first characters on the line for most commands. Except when a test condition has been initiated, the 7400B Plus is always in one of two states: command mode or data mode. When power is first applied, the 7400B Plus initializes to command mode.

  • Page 34: Issuing Commands

    AT Command Line Prefix The following paragraphs describe the elements of a command line and how the 7400B Plus responds to a command line when it is issued. All commands issued to the 7400B Plus must begin with the letters ‘‘AT’’...
  • Page 35 Once you complete a command line by pressing ( 7400B Plus will try to interpret all characters on the command line as valid commands. If the 7400B Plus finds a character that is not a valid command, it will ignore the erroneous character and any remaining characters on the command line.
  • Page 36 Repeating a Command Several other result codes may appear on your terminal screen while the 7400B Plus is completing a call. The option selected by the X command controls which of these result codes may appear on the screen of your terminal (the X command is described in Appendix A).
  • Page 37 DEFINITY Communications System CHAPTER 3: CONFIGURATION AND OPERATION 7400B Plus Data Module User´s Guide Page 3-5 Use the A/ command to redial the number as often as you wish.
  • Page 38 That is, you can type either at or AT, but At or aT will not work. If everything is operating properly, the command should appear on the screen as you type it, and the 7400B Plus should respond with OK. EXAMPLE 2: Using a time saver.

  • Page 39: Configuration Parameters

    ‘‘AT’’ commands that require option values, and the values stored in the S-registers. A set of configuration parameter values is called a profile. The 7400B Plus has four configuration profiles at any given time, one active, two stored, and one that permanently contains the factory-default values.
  • Page 40 0 or 1. Immediately reset the 7400B Plus and recall one of the two stored configuration profiles into active status, where n represents the desired profile and may be 0 or 1.

  • Page 41: Data Operation

    (see section titled ‘‘Command Acknowledgement’’). At this point, you can issue commands to the 7400B Plus. As long as the data call has not been disconnected, you can use the ‘‘ato’’ command to return to data mode.
  • Page 42 CHAPTER 3: CONFIGURATION AND OPERATION DEFINITY Communications System 7400B Plus Data Module Page 3-10 User´s Guide represents the speed of the 7400B Plus, (for example, 1200).
  • Page 43 Storing a Telephone Number CHAPTER 3: CONFIGURATION AND OPERATION The 7400B Plus is capable of storing up to four telephone numbers, each of which can contain up to 25 characters. Numbers stored in this way remain available indefinitely, even after the 7400B Plus has been powered off and then on again.
  • Page 44 If nnn is 0 (the factory-default setting), the automatic answer feature is turned off. The red LED on the front of the 7400B Plus labeled ‘‘AA’’ lights when the automatic feature is turned on.
  • Page 45 Remote Site Use CHAPTER 3: CONFIGURATION AND OPERATION The 7400B Plus can be used at a remote site as a dedicated service device to answer incoming data calls, send data to a remote end device, and then hang up. For example, you may wish to provide access to a printer from a remote site.
  • Page 46 You may also insert hyphens (-) anywhere in the telephone number for increased readability. In the second line of this example, the 7400B Plus returns a response indicating that a connection with the remote end device has been successfully completed at 2400 bps.
  • Page 47 9 represents the access code required to dial a number outside your PBX domain, and the remainder of the line is the telephone number. In the second line of this example, the 7400B Plus indicates that it detected a busy signal, and the call is automatically disconnected. Page 3-15...
  • Page 48 CONNECT 1200 The D command is used to dial the number of the bulletin board. Since the connection was made successfully, the 7400B Plus responded with a message that says the remote end connected and the data speed to be used is 1200 bps.
  • Page 49 Most remote systems will have a command or menu selection for logging off. When you select the appropriate means, the remote system will disconnect or hang up. The PBX will disconnect the call and, after a moment, the 7400B Plus will send the following message to your display: NO CARRIER...

  • Page 50: Voice Operations

    The 7400B Plus is equipped with a voice dial feature which allows you to place voice telephone calls from the attached terminal device. To place a voice call, just tell the 7400B Plus to use pulse dialing by including the ‘‘P’’ dial modifier. (For data calls, tell it to use tone dialing by including the ‘‘T’’...
  • Page 51 DEFINITY Communications System 7400B Plus Data Module User´s Guide Dialing Delay Dialing Pause Sample Command Line CHAPTER 3: CONFIGURATION AND OPERATION To ensure that dialing does not begin before dial tone is received, dialing a voice call will be delayed by the time stored in the S6 register (Wait Time Before Blind Dialing register) and can be set to a maximum value of 255 seconds.
  • Page 52 CHAPTER 3: CONFIGURATION AND OPERATION Page 3-20 EXAMPLE 2: Using the 7400B Plus as a touch tone generator. atd p 8000,,3452#, 999# ( at is the required command prefix, d is the dial command, p is the dial modifier required to initiate a voice call,...

  • Page 53: Chapter 4: Pc Applications

    (T) dialing. If given a choice, set the modem type to Hayes 2400 Smartmodem or just Hayes. These software packages were tested with the 7400B Plus at a rate of 2400. Check with your System 75/85 administrator to determine the appropriate baud rate to use on your system.

  • Page 54: Pc Communications Packages

    Macintosh PC communications packages ** A cable is necessary to convert from an 8 or 9 pin RS-232-C connector on the Macintosh to the 25 pin RS-232-C connector on the 7400B Plus. The PC communications package versions documented in this manual are listed in the table below.

  • Page 55: Carbon Copy Plus - V

    Figure 1 CARBON COPY Plus - System Parameters CARBON COPY Plus is a data communications software package produced by MicroCom. The 7400B Plus is configured in the CARBON COPY Plus installation procedure. Change to the CARBON COPY Plus directory. At the DOS prompt, type in "ccinstall."...
  • Page 56 Enter "9,18006245123" in the telephone number field and press < ENTER> . Select "F5" for the "Edit Current Line Emulation Table." DEFINITY Communications System 7400B Plus Data Module User´s Guide F2 -- Insert Line F4 -- Sort Entries by Name F9 -- Help...
  • Page 57 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 3 CARBON COPY Plus - Terminal Emulator Configuration ============ TERMINAL EMULATOR CONFIGURATION Communication PARAMETERS A -- Terminal Emulator...VT-100 B -- Communications Speed...Default C -- Word Length...8 bits D -- Parity...None E -- Stop Bits...1...
  • Page 58 Select the appropriate letter to exit CARBON COPY Plus. (Wait a few seconds while CARBON COPY Plus disconnects from the other computer and resets the 7400B Plus.) Select "F7" to place another call or select "F10" to return to DOS.

  • Page 59: Crosstalk Xvi - V3.71

    Select the letter next to "Hayes Smartmodem (all models)." Select the letter next to "Hayes Smartmodem 2400." Select the communication port to which the 7400B Plus is connected (typically COM1). Press < ENTER> (Wait a few seconds as CROSSTALK sets up the 7400B Plus).
  • Page 60 S - U.S. Robotics (all models) T - Ven-Tel Modem (all models) U - Zoom Telephonics Modem (all models) Z - Other modem not listed Enter modem type (A-U, or Z):_ DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 61 DEFINITY Communications System 7400B Plus Data Module User´s Guide Disconnecting a Call Select the letter next to ATTMAIL. If it’s not listed select "O" for "Other service not listed above." If ATTMAIL is a listed service: Enter "9,18006245123" as the telephone number for ATTMAIL.

  • Page 62: Crosstalk Mk.4 - V1.1

    CROSSTALK is a data communications software package produced by Digital Communications Associates. The 7400B Plus is configured in CROSSTALK’s "Setup" program. If installing the software for the first time, leave the "Outnumber" and the "LD" prefix blank, otherwise disregard the numbers when inputting a telephone number.
  • Page 63 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 7 Crosstalk Mk.4 - Reconfiguration menu Figure 8 Crosstalk Mk.4 - Configuration menu --Reconfiguration Menu----------------- Add or change a Phone Book card (NEWCALL) Change your user profile Change your equipment setup (CONFIG) Change Crosstalk’s Startup mode...
  • Page 64 The following screens will ask questions about your communications setup. Provide the following information: COM port - The communication port to which the 7400B Plus is connected. Modem Speed - The speed that will be used most of the time.
  • Page 65 DEFINITY Communications System 7400B Plus Data Module User´s Guide Placing a Call Figure 10 Crosstalk Mk.4 - Session Setup screen Calls can be made directly from Crosstalk’s Offline menu. They may be made with or without using the Phone Book.
  • Page 66 DialPrefix: ATDT------------- AnswerSetup: ATV1SO=1| ------- communications port to use Set the following parameters for ATTMAIL: Set the "Port Number" to which the 7400B Plus is connected. Set the "Speed" to "2400." Set the "Databits" to "8." Set the "Parity" to "None."...

  • Page 67: Hot Line - V2.2

    7400B Plus Configuring the Software Hot Line is a voice PC communications package produced by General Information, Inc. The 7400B Plus is configured through the Hot Line settings program. Change to the Hot Line directory. At the DOS prompt, enter "hotline/s"...
  • Page 68 Phonebook Keys Methods + --------------------------------------------------------------+ Figure 14 Hot Line - Settings menu Set the Port address to which the 7400B Plus is connected to "1". Set the Dialing method to "PULSE". Set the speed to "NORMAL". DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 69 DEFINITY Communications System 7400B Plus Data Module User´s Guide Setting up a Call Select "Save Settings" on the Settings menu, and press <ENTER> to save the settings. Example Setup: (For example purposes, a call to Joe Smith will be used for the setup.) Select "Dialer"...
  • Page 70 | F8 ||----------------------+----------------------|| || F9 | F10 ================================================= To ANSWER: pick up phone; press SPACE To CANCEL: don’t pick up; press ESC +-----------------------------------------------------+ To terminate a call, hang up. DEFINITY Communications System 7400B Plus Data Module User´s Guide Settings Help...

  • Page 71: Hyperaccess - V3.32

    7400B Plus Configuring the Software HyperACCESS is a data communications software package produced by Hilgraeve, Inc. The 7400B Plus is setup through the HyperACCESS Call Setup system. Change to the HyperACCESS directory. To begin HyperACCESS type "ha" at the DOS prompt.
  • Page 72 7 MCI Mail...1-800-323-0905 8 NewsNet (direct 1200 baud).1-215-527-6380 Figure 18 HyperACCESS - Call menu Select "F4" to redefine the modem and modem port. DEFINITY Communications System 7400B Plus Data Module User´s Guide Modem port = 1 Hayes Smartmodem 2400 : Yes...
  • Page 73 Select the appropriate function keys to setup the following options: Set the Modem type to "Hayes Smartmodem 2400." Set the Port address to which the 7400B Plus is connected. Set the Dialing method to "TONE." Set the Default baud rate to the speed that will be used most frequently (for example 300,1200,2400).
  • Page 74 Select "F4" to enter the baud rate (2400). Select "F9" to return to the Call menu. Select "F9" to return to the Main menu. Select "F5" to Setup Communications. DEFINITY Communications System 7400B Plus Data Module User´s Guide Setup Baud Sign-on...
  • Page 75 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 21 HyperACCESS - Setup menu ---------------------------HyperACCESS--------------------------- Setup ----- Press F1-F8 for option, F9 for previous menu, or F10 for comm screen F1 Store/Recall -- Store or recall program setups F2 Protocol...
  • Page 76 Select "Y" to replace the existing Setup. Select "F9" to return to the Setup menu. Select "F9" to return to the Main menu. DEFINITY Communications System 7400B Plus Data Module User´s Guide Setup = Call (modified) : 2400 : None...
  • Page 77 DEFINITY Communications System 7400B Plus Data Module User´s Guide Placing a Call Disconnecting a Call Starting from the Main Menu select "F1" to get the Call menu. Press "F1" to place a call. Select the number corresponding to ATTMAIL and press <...

  • Page 78: Microphone - V1.5

    MicroPhone is a data communications software package produced by Software Ventures Corporation. The following procedure is based on V 1.5 for use with Macintosh PCs. The 7400B Plus is configured in the MicroPhone installation procedure. Change to the Microphone directory.
  • Page 79 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 24 MicroPhone - Communications Settings screen Check that the options displayed on the "Communications Settings" screen match those on the screen below. Change any options that do not match. When you are finished, click "OK" to return to the Main communications menu.
  • Page 80 Enter the following on the "Set Up New Service" screen. Service Name: ATTMAIL Phone Number: 9,18006245123 Dialing Mode: Tone Click "OK" to save this setup and to return to the Main communications menu. DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 81 Wait for a CONNECT message. Once the call is established, press <ENTER> to get the ATTMAIL login prompt. Select "Phone" from the Main communications screen. Choose "Hang Up" from the Phone menu (the 7400B Plus will disconnect). CHAPTER 4: PC APPLICATIONS Page 4-29...

  • Page 82: Pc Tools Deluxe - V 6

    PC TOOLS Deluxe is a voice DOS utility package produced by Central Point Software, Inc. It provides auto-dialer capabilities. The 7400B Plus is configured by the PC Setup Program. Change to the PC Tools directory. At the DOS prompt, type "desktop".
  • Page 83 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 27 PC Tools - Configure Autodialer screen Check that the options displayed on your screen match those on the Configure Autodialer screen below. Change any options that do not match. (The baud rate can be set at any speed).
  • Page 84 Choose "Autodial" from the Controls menu. Select "Joe Smith" from the Autodial screen. Select "Local" or "Distant". Once the call is established, press <ENTER> or <ESC>. To terminate a call, hang up. DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 85: Procomm Plus - V 1.1B

    PROCOMM Plus is a data communications software package produced by Datastorm Technologies, Inc. The 7400B Plus is configured by the Procomm Plus Setup Utility. If Procomm Plus is being installed for the first time, select "Hayes 2400" as the modem type.
  • Page 86 Press the < ESC> key to return to the Terminal Mode Screen. Press "Alt-x" to exit from Procomm Plus. (It is necessary to exit and restart Procomm Plus to properly configure the 7400B Plus.) Select "Y" to exit Procomm Plus and return to DOS.
  • Page 87 DEFINITY Communications System 7400B Plus Data Module User´s Guide Placing a Call Figure 30 Procomm Plus - Dialing Directory Example Setup: (For example purposes, a call to ATTMAIL will be used for the setup.) Starting at the Terminal Mode Screen, select "Alt-d" to get into the dialing directory.
  • Page 88 Press < ENTER> to get the ATTMAIL login prompt. To terminate a call, press "Alt-h." Once the call is terminated, select "Alt-d" to return to the Dialing Directory or select "Alt-x" to exit to DOS. DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 89: Relay Gold - Release

    RELAY GOLD is a data communications software package produced by Relay Communications, Inc. The 7400B Plus can be configured in the Relay Gold installation procedure for a first time install or the parameters can be modified from within the application.
  • Page 90 Send LF with CR? N (Y,N) Delay After Line? 0 (0-99) RELAY/3270 Model Number: 2 Esc = Quit DEFINITY Communications System 7400B Plus Data Module User´s Guide Logon Script Filename? IBM3101 Full or Half Duplex? F (F,H) Flow Control (XON/XOFF)? N (Y,N,R,X,H)
  • Page 91 DEFINITY Communications System 7400B Plus Data Module User´s Guide Set the COM Port to which the 7400B Plus is connected. Set the Parity selected to (N) None. Set the Stop Bits to 1. Set Duplex to Full. Press <ENTER> to save any changes made and to return to the "Directory of Computers."...

  • Page 92: Sidekick Plus

    Figure 33 SideKick Plus - Summary menu and Communications window Side Kick is a voice PC communications package produced by Borland International, Inc. The 7400B Plus is configured through the SideKick Plus INSTALL program. Change to the SideKick Plus directory.
  • Page 93 DEFINITY Communications System 7400B Plus Data Module User´s Guide Placing a Call Figure 34 SideKick Plus - New Form screen Example Setup: (For example purposes, a call to Joe Smith will be used for the setup.) Select "Insert Entry" from the Summary menu.
  • Page 94 F3 = New Form F5 = Zoom F4 = Print F6 = Switch <ENTER> Dial Letter search for index Hang-up. DEFINITY Communications System 7400B Plus Data Module User´s Guide | 9,834-4800 | 9,957-5700 F7 = = Note F8 = Hangup F10 = Menu...

  • Page 95: Smartcom Ii - Prior To Version

    Mode SMARTCOM is a data communications software package produced by Hayes Microcomputer Products, Inc. The 7400B Plus is set up in Smartcom II’s Direct Mode. When originating calls, the type of connection must always be set to DIRECT CONNECTION. When setting the Remote Access feature, the connection type selected should be either CCITT 1200 or CCITT 2400.
  • Page 96 Set the Dial Method option to "TONE" and the Port and Direct Connect Port option to either "COM 1" or "COM 2" (The port to which the 7400B Plus is connected). After the options are set, press the down arrow until "Record to Disk? (Y/N ):"...
  • Page 97 DEFINITY Communications System 7400B Plus Data Module User´s Guide Setting the Call Parameters Example Setup: (For example purposes, a call to ATTMAIL will be Figure 38 Smartcom II - Parameters menu used for the setup.) Select "2" (Edit Set) from the MAIN menu at the Enter Selection prompt.
  • Page 98 Page 4-46 Building a Macro Figure 39 Smartcom II - Initialization macro Two macros must be created to operate the 7400B Plus with Smartcom II. A macro for initialization of the unit and the other for terminating the call. Initialization Macro Select "2"...
  • Page 99 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 40 Smartcom II - Call Terminating macro Placing a Call Call Disconnect Macro Select "2" (Edit Set) from the Main menu at the Enter Selection prompt. Select "S" (Set). Select the letter next to ATTMAIL.
  • Page 100 PC to answer calls automatically. Edit the Automatic Log-on macro by replacing the atdt<phone#> entry with ats0=1. At the Main Menu, select O to Originate a call. DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 101 DIRECT CONNECTION. The Remote Access feature works only if the 7400B Plus that is being called is accessed via a modem pool. Select the error-free protocol to be xmodem.

  • Page 102: Configuring The Software

    Enter Selection: 1 Press F1 To Return On-Line Dials or answers phone with Smartmodem Figure 42 Smartcom II - Main menu DEFINITY Communications System 7400B Plus Data Module User´s Guide ATEO V1 QO X1 S0-0 & C1 & D2 Dial: ATDT...
  • Page 103 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 43 Smartcom II - Configuration menu Select "6" for the "Change Configuration" menu at the "Enter Selection" prompt. CONFIGURATION PRINTER: Port: Serial Protocol: Remove Extra Line Feeds: SMARTMODEM : Port:...
  • Page 104 Select the letter next to the ATTMAIL set or if one does not exist select a blank set. Select "P" (Parameters). DEFINITY Communications System 7400B Plus Data Module User´s Guide 7. Change Printer Status (OFF) *. Select Remote Access (OFF) 0.
  • Page 105 DEFINITY Communications System 7400B Plus Data Module User´s Guide Figure 45 Smartcom II - Parameters menu Set the following parameters for the ATTMAIL set: If you have chosen a blank set, enter "ATTMAIL" for the label. Set the Connection Type to "CCITT 2400."...
  • Page 106 Follow the same steps as outlined above for the Call Originator, but on the last line of the Automatic Log-on Macro, replace the atdt<phone#> entry with ats0=1. DEFINITY Communications System 7400B Plus Data Module User´s Guide Press F2 For Help Set: Q - ATTMAIL...
  • Page 107 Hayes Microcomputer Products, Inc. The following procedure is based on V 3.1 for use with Macintosh PCs. The 7400B Plus is set up through Smartcom II’s Direct Mode. To configure the software do the following: Change to the "SMARTCOM II" directory.
  • Page 108 + --------------------------------------------------------------+ Type "+++" on the Main communications menu, and wait for an "OK" from the 7400B Plus. Type "ath" and press <ENTER>. (The 7400B Plus disconnects from the other computer.) DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 109: Smartcom Iii - V 1.1

    SMARTCOM is a data communications software package produced by Hayes Microcomputer Products, Inc. The 7400B Plus is set up in Smartcom III’s Direct Mode. Under the "Connection Settings" option, the type of connection must always be set to DIRECT CONNECTION.
  • Page 110 Figure 49 Smartcom III - Main menu At the Main menu, select "C" for the "Connection Settings." Select "N" for a "New Connection." Enter "7400B Plus" as the connection filename and press <ENTER>. DEFINITY Communications System 7400B Plus Data Module...
  • Page 111 Figure 50 Smartcom III - Modify Connection menu Example Setup: (For example purposes, a call to ATTMAIL will be used for the setup.) Set the "Connect Through Port" option to the port which the 7400B Plus is connected. Set the "Type of Connection" option to "Direct Connection."...
  • Page 112 Enter "Y" for a carriage return to be put on the end of the macro string. Select "F8" to save and exit. Press < ESC> to return to the Main menu. DEFINITY Communications System 7400B Plus Data Module User´s Guide Alt-A key: ...Alt-Tab...
  • Page 113 Wait for a "CONNECT" message. Once the call is established, press <ENTER > to get the ATTMAIL login prompt. Type in: +++ , wait for an "OK" from the 7400B Plus. Type in: ath<ENTER> (The 7400B Plus will disconnect from the other computer).

  • Page 114: Smarterm 240 - V3.0A

    Figure 52 Smarterm 240 - Setup Mode Menu SMARTERM is a data communications software package produced by Persoft, Inc. The 7400B Plus is setup by executing a macro that contains the proper "AT" commands to initialize it. Change to the SMARTERM 240 directory.
  • Page 115 7400B Plus Data Module User´s Guide Figure 53 Smarterm 240 - Communication Parameters Set the "Communication Line" to the port which the 7400B Plus is connected. Set the Baud Rate to "2400." Set the Bits/Parity option to "8/none." Set the Stop Bits option to "1."...
  • Page 116 Wait for a "CONNECT" message. Once the call is established, press < ENTER> to get the ATTMAIL login prompt. Type in: +++ , wait for an "OK" from the 7400B Plus. Type in: ath<ENTER> (the 7400B Plus will disconnect from the other computer).

  • Page 117: At&T Terra Nova - V1.1.1

    Configuring the Software Terra Nova is a data communications software package produced by AT&T. The 7400B Plus will be setup automatically by modifying the existing Hayes.dia file in the Terra Nova Software. This procedure is explained is the next section.
  • Page 118 CHAPTER 4: PC APPLICATIONS Page 4-66 Figure 54 AT&T Terra Nova - 7400B.dia file # CONNECT SCRIPT FOR 7400B Plus #TRACE ON #CAPTURE hayes.tmp SET var "3" PRINT "\r\nATTEMPTING TO CONNECT TO MODEM...\r\n" SEND "AT&C1&D2&F&W\r" #WAIT 1 "?" WAITFOR 10 "O"...
  • Page 119 There are eight functions on the option screen that need to set before communicationing with the 7400B Plus, they are: HOST - Set it to "Other." PORT - Select the COM Port to which the 7400B Plus is connected (Com 1 or 2). BAUD - Set it to "2400." PARITY - Set it to "None."...
  • Page 120 Wait momentarily, after a "CONNECT 2400" message appears on the screen, press < ENTER> to get the ATTMAIL login prompt. Select "F10" to return to TERRA NOVA’s option menu screen. Select "F3" to Drop the line. DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 121: White Knight - V 11

    White Knight is a data communications software package produced by The FreeSoft Company. The following procedure is based on V 11 for use with Macintosh PCs. The 7400B Plus is configured in the White Knight installation procedure. Change to the WHITE KNIGHT directory.
  • Page 122 Once the call is established, press <ENTER> to return to the ATTMAIL login prompt. Select "Service" the Main communications menu. Choose "Modem..." from the Service menu. Choose "Hang Up" from the Modem menu. DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 123: Chapter 5: Troubleshooting

    Perform the task described in the ‘‘Solution’’ column. In cases where you are directed to type an AT command to correct the problem and the 7400B Plus is in the data mode, simply do the following: Type the escape sequence (+++) to enter command mode;...
  • Page 124 Power is off. Check that the AC outlet is working. Check that the power supply unit is connected to the 7400B Plus and to the AC outlet. The 7400B Plus has lost Check that the D8W cord is communications with connected between the LINE the PBX.
  • Page 125 DEFINITY Communications System 7400B Plus Data Module User´s Guide Symptom Call disconnects immediately after an attempt to connect; NO CARRIER may be displayed on the local terminal device; CHECK SPEED LED lights. Call disconnects immediately after an attempt to connect;...
  • Page 126 Disable the command echo by option is enabled. entering ATE0. As you type the ATE0 command, AATTEE00 will appear, and the 7400B Plus will send the response code OK to your screen. The next command that you enter should appear in single characters.
  • Page 127 DEFINITY Communications System 7400B Plus Data Module User´s Guide Symptom The speakerphone does not turn on when a voice call is dialed. The speakerphone turns on when a voice call is dialed, but touch-tones are not heard. Data calls are dialed instead of voice calls.
  • Page 128 The voice terminal is Check to make sure the voice not connected to the terminal is plugged into the 7400B Plus, an PHONE jack of the 7400B Plus. unsupported voice Check the Features section of terminal is being used, Chapter 1, "Introduction" to...
  • Page 129 AA LED is on when software to turn on the DTR there is no incoming lead, or set the 7400B Plus to call, but the terminal ignore the DTR lead by typing device is not ready (TR at&d0 (...
  • Page 130 ( The O command at the end of the above command line will cause the 7400B Plus to return to the on-line mode and send the CONNECT xxxx message, or an equivalent numeric code, to the terminal display (see ‘‘Result...
  • Page 131 1200, 2400, 4800, 9600, or 19200 7400B Plus. bps. The 7400B Plus is Configure the 7400B Plus to send CONNECT nnnn configured to display only the basic set of messages for all speeds except result codes (option 300 bps by typing x0).
  • Page 132 DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 133: Appendix A: At Command Set

    Type may be immediate or configuration. An immediate command causes Type: the 7400B Plus to perform an action as soon as the command is sent (for example, go off-hook or dial a number). A configuration command modifies a configuration parameter during the current session.
  • Page 134 Following this label are suggestions on where to look for more information about the current command and a listing of any other commands that may be used with or affect the use of the current command. DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 135 ( Example: Comments: The A command causes the 7400B Plus to go off-hook in answer mode and attempt to answer an incoming call. The option set by the &D command and the contents of S0 and S1 are ignored when this command is issued.
  • Page 136 (+++ is the other one). To repeat the previously executed command line exactly, type A/ without pressing the Return or Enter key. This command cannot be combined with any other command. See Also: Chapter 3, "Configuration and Operation." DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 137 The dial modifier s=n, where n may be a number from 0 through 3, will cause the 7400B Plus to send the contents of its respective telephone number storage location to the PBX as the telephone number. For details on how to use this feature, refer to ‘‘Storing a Telephone Number’’...
  • Page 138 Used to delimit a dial command from other commands that follow it on the same command line. The semi-colon dial modifier causes the 7400B Plus to remain in command mode after the call is dialed. Used to dial a telephone number stored with the &Zn=x command.
  • Page 139 DEFINITY Communications System DEFINITY Communications System 7400B Plus Data Module 7400B Plus Data Module User´s Guide User´s Guide and then (more) (Contd.) Comments: used in conjunction with the S=1 dial modifier on the next command line to dial a data call after a voice call is dialed.
  • Page 140 Chapter 3, "Configuration and Operation." Command: Function: Switch hook control. Type: immediate Arguments: No argument or an argument of 0 causes the 7400B Plus to go on-hook. S-Register: none ath ( Example: Comments: The H command with no argument can be used during a data call to cause the 7400B Plus to go on-hook (hang up) after using the escape sequence (+++) to return to command mode.
  • Page 141 S-Register: none ato ( Example: Comments: The 7400B Plus accepts an argument of 1 but treats it the same as no argument or an argument of 0. Chapter 3, "Configuration and Operation;" the +++ command in See Also: this appendix.
  • Page 142 Example: Comments: In the example, the result codes are disabled. Use this option only if you wish to prevent the 7400B Plus from returning result codes after an ‘‘AT’’ command is issued. See Also: Chapter 3, "Configuration and Operation;" result codes in Appendix E, "Summary Tables;"...
  • Page 143 Type: configuration Arguments: No argument or an argument of 0 causes the 7400B Plus to return the short form or numeric result codes; an argument of 1 causes the 7400B Plus to return the verbose form or text message result codes.
  • Page 144 S22 and affect the result codes returned. Chapter 3, "Configuration and Operation"; result codes in See Also: Appendix E, "Summary Tables;" the Q and V commands in this appendix. Enter DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 145 S-Register: atz1 ( Example: Comments: In the example, the Z command causes the 7400B Plus to reset, and then loads the configuration profile stored in location 1 into the active location. See Also: Chapter 3, "Configuration and Operation." Enter...
  • Page 146 In the example, the DCD circuit operates according to the EIA- 232-D standard. This would be an appropriate setting for when the 7400B Plus is used at a remote site. Regardless of which option is currently in effect, the DCD circuit of the 7400B Plus is always off during self-test.
  • Page 147 In the example, the DTR circuit is set according to the EIA-232-D standard. This would be an appropriate setting for when the 7400B Plus is used at a remote site as a dedicated device to automatically answer an incoming data call.
  • Page 148 Comments: In the example, the DSR circuit is configured to operate according to the EIA-232-D standard. Regardless of which option is currently in effect, the DSR circuit of the 7400B Plus is always off during self-test. See Also: Chapter 3, "Configuration and Operation."...
  • Page 149 All argument values in the range of 0—8 are valid. All of the options selected by the command arguments described above are accepted and implemented by the 7400B Plus. If the local digital loopback or remote digital loopback tests are in progress, it is necessary to issue the escape sequence to return to command mode before the &T0 command can...
  • Page 150 &Z3= PPARIS Enter command and S-register settings for the active configuration profile command and S-register settings saved in configuration profile locations 0 and 1 contents of the four telephone number storage locations DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 151 7400B Plus is powered on. When the &Y command is issued, the currently active profile does not change until the 7400B Plus is powered off and then on again. Chapter 3, "Configuration and Operation."...
  • Page 152 In the example, the dial string 555-1212 is stored in memory location 2. Each of the four number storage locations can store a maximum of 25 characters. See Also: Chapter 3, "Configuration and Operation". DEFINITY Communications System 7400B Plus Data Module Enter User´s Guide...

  • Page 153: Appendix B: Dial Modifiers

    A dial string is a string of characters followed by the ‘‘D’’ (dial command) unless otherwise noted. This appendix contains an explanation of each dial modifier accepted by the 7400B Plus. Labels used in the descriptions are defined as follows:...
  • Page 154 7400B Plus will place a voice call. When the P is omitted or the T is used, the 7400B Plus will place a data call. When the P is entered after the D and a stored number is dialed, a voice call is made even if the first character of a stored number is the T dial modifier.
  • Page 155 ( Example: Comments: The purpose of the T dial modifier is to signal the 7400B Plus to dial the number that follows as a data call. When entered immediately after the D in a dial command and/or as the first character in a stored number, the 7400B Plus will place a data call.
  • Page 156 If the dial command for a voice call is the last command on the command line, the semi-colon dial modifier may be omitted (the 7400B Plus will still return to the command mode). See Also: Chapter 3, "Configuration and Operation."...

  • Page 157: Appendix C: S-Registers

    APPENDIX C: S-REGISTERS This appendix contains an explanation of each S-register used by the 7400B Plus. There are 25 S-registers used to store configuration parameters. Nine of these registers can be stored in non-volatile memory, which will be restored when the unit is powered up.
  • Page 158 S-registers, presents the contents of bit-mapped registers as two hexadecimal digits followed by an uppercase letter H (for example, assuming that S-register S14 contains the value AA hexadecimal, the AT&V command displays S14:AAH). DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 159 DEFINITY Communications System 7400B Plus Data Module User´s Guide Label Description (Contd.) Storable: A yes after this label indicates that the contents of this S-register will be written when the current configuration profile is saved to one of the two configuration profile storage locations. A no here indicates that the contents of the S-register will not be written to storage.
  • Page 160 Storable: Comments: In the 7400B Plus, incoming rings are not detected as such. The PBX notifies the 7400B Plus of an incoming call and a ring cycle (RI lead) is generated internally. The register is incremented after each ring cycle.
  • Page 161 DEFINITY Communications System 7400B Plus Data Module User´s Guide Register: Description: This S-register stores the ASCII value of the escape sequence character. Range of Value may be 000 through 127 (see comments); factory-default Values: setting is 043, the ASCII code for a plus sign (+).
  • Page 162 If command echo is enabled (AT command E1), the output of the backspace character is actually three characters: backspace, space, backspace. See Also: Chapter 3, "Configuration and Operation." DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 163 The 7400B Plus uses the blind dialing method to originate voice calls since it does not contain a dial tone detector. When an offhook message is sent to the PBX, the 7400B Plus pauses for the specified time before dialing the call.
  • Page 164 S9 — not used Register: Description: The value in this S-register determines how long the 7400B Plus will wait after loss of line signal is detected before disconnecting. Range of Value may be 000 through 255 tenths (0.1) of a second; factory- default value is 014 tenths of a second (1.4 sec.).
  • Page 165 DEFINITY Communications System 7400B Plus Data Module User´s Guide Register: Description: The value in this S-register determines the minimum delay required immediately before and after entering the escape sequence (guard time). It also determines the maximum interval allowed between entering each of the three consecutive characters of the sequence.
  • Page 166 ‘‘AT’’ commands in Appendix A, "AT Command Set. S15 — not used Register: In the DCP operating environment of the 7400B Plus, tone and pulse dialing have no meaning. If the T or P dial modifiers are used, bit 5 is changed accordingly, but the 7400B Plus performs no other action.
  • Page 167 DEFINITY Communications System 7400B Plus Data Module User´s Guide Register: Description: This S-register stores test function status in a bit-mapped format as follows: bit 0 — local digital loop test; 0 = test disabled, 1 = test in progress (default = 0, see the &T1 and &T2 commands) bit 1 —...
  • Page 168 S-register 18. Chapter 3, "Configuration and Operation;" Appendix A, "AT See Also: Command Set." Register: S19 — not used Register: S20 — not used DEFINITY Communications System 7400B Plus Data Module User´s Guide...
  • Page 169 Chapter 3, "Configuration and Operation;" refer to the indicated ‘‘AT’’ command in Appendix A, "AT Command Set." For the 7400B Plus, bits 0, 2, and 7 will be set by the appropriate command, however, there will be no other effect.
  • Page 170 Chapter 3, "Configuration and Operation;" refer to the indicated See Also: ‘‘AT’’ command in Appendix A, "AT Command Set." For the 7400B Plus, bits 0 through 3 and bit 7 will be set by the appropriate command, however, there will be no other effect.
  • Page 171 S24 — not used Hayes compatible modems use only bits 0, 1 and 2 for speeds up to 2400 bps. The 7400B Plus uses bit 3 to support speeds above 2400 bps. Bits 6 and 7 are set by the appropriate command, but there will be no other effect.
  • Page 172 Values may be 000 through 255 hundreds of a second (0.01 sec.). Values: The factory-default setting is 5 (0.05 sec.). Storable: none Comments: See Also: Chapter 3, "Configuration and Operation." Register: S26 — not used Register: S27 — not used DEFINITY Communications System 7400B Plus Data Module User´s Guide...

  • Page 173: Appendix D: Loopback Data Tests

    The 7400B Plus Loopback Data Test Arrangement provides a simple mechanism for isolating problems. In the Loopback Data Test Arrangement one or more 7400B Plus are set up for auto answer, and have the received data lead looped back to the transmit data lead on the data module’s EIA interface.
  • Page 174 Figure C Using the Loopback Data Test Arrangement in a Network NETWORK Modem Pool System 75 System 85 DEFINITY System 75 System 85 DEFINITY DEFINITY Communications System 7400B Plus Data Module User´s Guide 7400B Plus Loopback Plug Host Data Module 7400B Plus System 75 System 85...
  • Page 175 Loopback Data Test Arrangements used for modem pool testing. The 7400B Plus must be connected to the PBX and powered up prior to using it in the Loopback Data Test Arrangement. Connect an asynchronous data terminal to the RS-232 port of the 7400B Plus.
  • Page 176 Test Arrangement A looparound plug must now be connected to the RS-232 interface of the 7400B Plus. A looparound plug connects pin number 2 to pin number 3 on the 7400B Plus Data Module’s RS-232 interface using a modified RS-232 connector. The modified RS-232 connector is shown in Figure D.

  • Page 177: Appendix E: Quick-Reference Summaries

    DEFINITY Communications System 7400B Plus Data Module User´s Guide APPENDIX E: QUICK-REFERENCE SUMMARIES APPENDIX E: QUICK-REFERENCE SUMMARIES This appendix contains quick-reference summaries for the following data: AT Command Set Dial Modifiers S-Registers Result Codes Factory-Default Configuration EIA-232-D Pin Assignments ASCII Character Set...
  • Page 178 Enables features of result codes 0-5, 7, 10-12, 14. Enables features of result codes 0-5, 7, 10-12, 14. Reset and recall stored configuration profile 0. Reset and recall stored configuration profile 1. (more) DEFINITY Communications System TABLE E-1 AT COMMAND SET 7400B Plus Data Module User´s Guide...
  • Page 179 DEFINITY Communications System 7400B Plus Data Module User´s Guide Command Description &C0 Maintain DCD circuit in ON state. &C1 DCD circuit operates according to EIA-232-D specification. Ignore DTR signal. &D0 &D1 Return to command mode if ON/OFF transition of DTR is detected;...
  • Page 180 Initiate voice call—follows the dial command. Initiate data call—follows the dial command. Comma—pause character. Semi-colon—return to the command mode. Dial the telephone number stored with the &Zn=x command. DEFINITY Communications System TABLE E-2 DIAL MODIFIERS 7400B Plus Data Module User´s Guide...
  • Page 181 DEFINITY Communications System 7400B Plus Data Module User´s Guide Register Description Ring to answer on. Incoming ring count. Escape sequence character. Carriage return character. Line feed character. Back space character. Blind dial delay for voice calls. Wait time for call completion.
  • Page 182 Carrier signal not detected or lost Error in command line Connection made at 1200 bps Busy signal detected Connection made at 2400 bps Connection made at 4800 bps Connection made at 9600 bps Connection made at 19200 bps 7400B Plus Data Module User´s Guide...
  • Page 183 Command state echo Communication mode Default user profile DCD circuit option DSR circuit option DTR circuit option Not used by 7400B Plus Not used by 7400B Plus Not used by 7400B Plus RDL request Result codes Result code format Result code subset...
  • Page 184 Page E-8 FACTORY-DEFAULT CONFIGURATION (Contd.) Parameter Auto-answer on ring Backspace character Carriage return character Not used by 7400B Plus Pause time for comma Not used by 7400B Plus DTR detection Escape sequence character Escape sequence guard time Hang up after lost carrier...
  • Page 185 DEFINITY Communications System 7400B Plus Data Module User´s Guide Circuit — BA (SD) BB (RD) CA (RTS) CB (CTS) CC (DSR) AB (SG) CF (RLSD) — — — — — — — — — — CD (DTR) — CE (RI) —...
  • Page 186 Ctrl-I Ctrl-J Ctrl-K Ctrl-L Ctrl-M Ctrl-N Ctrl-O Ctrl-P Ctrl-Q Ctrl-R Ctrl-S Ctrl-T Ctrl-U Ctrl-V Ctrl-W Ctrl-X Ctrl-Y Ctrl-Z Ctrl-[ Ctrl-\ Ctrl-] Ctrl-^ Ctrl-_ DEFINITY Communications System 7400B Plus Data Module User´s Guide CONTROL CHARACTER spacebar " & ’ < >...
  • Page 187 DEFINITY Communications System 7400B Plus Data Module User´s Guide ASCII CONTROL VALUE CHARACTER APPENDIX E: QUICK-REFERENCE SUMMARIES TABLE E-7 ASCII CHARACTER SET (Contd.) ASCII VALUE Page E-11 CONTROL CHARACTER ‘ Delete...
  • Page 188 Page 1...
  • Page 189 Adjunct equipment, 2-1 Adjunct equipment, power adapter, 2-2 Adjunct equipment, power supply, 2-2 ASCII character, backspace, C-6, 3-3 ASCII character, carriage return, C-5 ASCII character, dialing string, A-5 ASCII character, escape sequence, C-4 ASCII character, line feed, C-5 ASCII character set, E-10 AT command set, A-1 AT commands, +++, C-4, 5-1 AT commands, A, A-3...
  • Page 190 Index Page I-2 DIP switch options, SW-6, 5-5 DIP switch options, SW-7, 5-5 DIP-switch options, 2-8 Direct mode, 2-7 Display problems, 3-14 DTE, see Data Terminal Device, 1-1 DTR lead, 5-9 Dumb terminal mode, 2-7 Duplex, full, A-7, 5-3 Duplex, half, A-7, 5-3 Duration of delay, delay for pauses, C-7 EIA-232-D, 1-2, 2-1 EIA-232-D, pin assignments, E-9...
  • Page 191 Index Page I-3 S-registers, S25, C-15 S-registers, S3, C-5 S-registers, S4, C-5 S-registers, S5, C-6 S-registers, S7, C-7, A-10 S-registers, summary, E-5 Stop bits, 3-2 Storing telephone numbers, A-17, 3-9 System 75, 1-1 System 85, 1-1 Telephone, 1-2, 1-6 Telephone device, 2-6 Telephone number storage, A-5, 3-9 Telephone option, 2-6, 2-8 Terminal, dedicated, 2-17...

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