Page 3 - ii
CONTENTS PREFACE: ABOUT THIS GUIDE Typographical Conventions i Organization of This Guide i Related Documentation ii 1 CHAPTER 1: INTRODUCTION External Features 1-2 2 CHAPTER 2: INSTALLATION Hardware and Software Requirements 2-1 Hardware Installation 2-7 Initial System Checks 2-12 If You Are Using ...
Page 5 - PREFACE: ABOUT THIS GUIDE; OK; ORGANIZATION OF THIS
DEFINITY Communications System PREFACE: ABOUT THIS GUIDE 7400B Data Module User’s Guide P a g e i TYPOGRAPHICALCONVENTIONS PREFACE: ABOUT THIS GUIDE The purpose of this guide is to provide information for installing,operating, and maintaining the 7400B Data Module. Throughout this guide, command lin...
Page 7 - CHAPTER 1: INTRODUCTION
DEFINITY Communications System CHAPTER 1: INTRODUCTION 7400B Data Module User’s Guide Page 1-1 CHAPTER 1: INTRODUCTION This chapter discusses the basic operating features of the 7400B Data Module and describes the external indicators and connectors. The data module provides an asynchronous data serv...
Page 8 - EXTERNAL FEATURES
CHAPTER 1: INTRODUCTION DEFINITY Communications System 7400B Data Module Page 1-2 User’s Guide ● ● ● data metering option programmable control characters self-test at start-up local and remote loopback tests test duration timers voice terminal powered by the PBX is not affected if ac power ● ● ● is ...
Page 9 - Connector
DEFINITY Communications System CHAPTER 1: INTRODUCTION 7400B Data Module User’s Guide Page 1-3 Connector Description POWER/ TEST DATAMETERING A A CD R D SD TR O H CHECKSPEED DATA This red LED lights as long as power is applied to the data module. This LED flashes during any test mode, except the sta...
Page 10 - Rear Panel; The rear panel of the 7400B Data Module is shown in Figure 1-2, and; PHONE; TABLE 1-2 Rear Panel Connector Descriptions
CHAPTER 1: INTRODUCTION DEFINITY Communications System 7400B Data Module Page 1-4 User's Guide Rear Panel The rear panel of the 7400B Data Module is shown in Figure 1-2, and the connectors located on the rear panel are described in Table 1-2. Figure 1-2. Rear Panel Connector Description PHONE This c...
Page 11 - Power Supply Unit
DEFINITY Communications System CHAPTER 1: INTRODUCTION 7400B Data Module User’s Guide Page 1-5 Power Supply Unit A separate power supply unit is required with the 7400B Data Module. This unit connects between a grounded AC outlet and the “POWER”connector at the rear of the data module. This power su...
Page 12 - REQUIREMENTS; CHAPTER 2: INSTALLATION; an asynchronous data terminal device or a personal computer
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-1 HARDWARE ANDSOFTWARE REQUIREMENTS CHAPTER 2: INSTALLATION This chapter describes the hardware and software required for installingthe data module, and outlines procedures for preparing the data modulefor o...
Page 13 - Figure 2-1. Typical Standalone Installation
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module User’s Guide Page 2-2 PERSONAL COMPUTER 7400B DATA MODULE D8W CORD PBX WALL JACK EIA CABLE POWER SUPPLY Figure 2-1. Typical Standalone Installation
Page 14 - Figure 2-2. Typical Installation with Telephone
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-3 Figure 2-2. Typical Installation with Telephone
Page 15 - Figure 2-3. Typical Installation with Telephone
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module Page 2-4 User’s Guide Figure 2-3. Typical Installation with Telephone and Adjunct Equipment Requiring Auxiliary Power
Page 16 - About the Terminal Device; Terminal mode. Also called local mode or chat mode, this; Dialing directory. This feature allows you to store several
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-5 About the Terminal Device The 7400B Data Module operates with any asynchronous data terminal device that has an EIA-232-D (or RS-232-C) serial port connector. Ifyou are using a PC as your terminal, you wil...
Page 17 - Predefine data options profiles. Some programs include
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module Page 2-6 User’s Guide ● Predefine data options profiles. Some programs include completely defined data option profiles (also called configuration profiles) for popular modems. If available, select the options profile for the Ha...
Page 18 - HARDWARE; transfer speed of the remote system. The C0NNECT xxxx message
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-7 HARDWARE INSTALLATION Data Metering Option (SW1-5) When the data metering option is disabled (SW1-5 set to "OFF"), thetransfer speed of the 7400B Data Module will adjust to match the transfer speed...
Page 19 - Setting the Hardware
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module Page 2-8 User’s Guide Setting the Hardware Three hardware options are selected by setting switches on an internal Option DIP Switches 8-position DIP switch. Setting these switches is described in the following paragraph; howeve...
Page 20 - Figure 2-4. Accessing the Hardware Option Switches
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-9 To access and set the hardware option switches, refer to Figure 2-4 andperform the following: Figure 2-4. Accessing the Hardware Option Switches
Page 21 - C a b l e
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module Page 2-10 User’s Guide Caution: Disconnect all cables and telephone cords attached at therear of the unit. Failure to disconnect all cables and 1. b. 2. 3. 4. 5. 6. cords at this point could result in permanent damage to the 74...
Page 22 - Connecting the DCP Cord
DEFINITY Communications System CHAPTER 2: INSTALLATION 7400B Data Module User’s Guide Page 2-11 2. Connecting the DCP Cord Attach the DCP type D8W telephone cord as follows: 1. Insert either end of the telephone cord into the connector on the rear panel of the Data Module labeled LINE. 3. Insert the...
Page 23 - INITIAL SYSTEM CHECKS; AT
CHAPTER 2: INSTALLATION DEFINITY Communications System 7400B Data Module Page 2-12 User’s Guide INITIAL SYSTEM CHECKS This section describes procedures for initially checking out yourhardware and any required software. It is assumed at this point that your hardware and data communications software h...
Page 24 - OPERATING MODES; CHAPTER 3: FIRST TIME USERS; AT commands are described fully in Appendix A, “AT Commands.”; Character Formats
DEFINITY Communications System CHAPTER 3: FIRST TIME USERS 7400B Data Module User’s Guide Page 3-1 OPERATING MODES CHAPTER 3: FIRST TIME USERS This chapter provides some basics on 7400B Data Module operation,describes how to use a few AT commands that are essential for most datacommunications operat...
Page 26 - AT Command; TABLE 3-2 AT Command Subset
DEFINITY Communications System CHAPTER 3: FIRST TIME USERS 7400B Data Module User’s Guide Page 3-3 AT Command Description AT The command prefix that must be typed as the first two letters ofall AT commands except +++ and A/. This prefix gets the tention of the data module. AT Note: The characters of...
Page 27 - SAMPLE COMMAND LINES
CHAPTER 3: FIRST TIME USERS DEFINITY Communications System 7400B Data Module Page 3-4 User’s Guide AT Command Description +++ The escape character sequence. This is one of the twocommands that does not require the AT prefix. Once you have connected to the remote device, your data module assumes the ...
Page 28 - AT is the required command prefix,
DEFINITY Communications System CHAPTER 3: FIRST TIME USERS 7400B Data Module User’s Guide Page 3-5 ● In the first line of this example, AT is the required command prefix, D is the dial command, and the remainder of the line is the telephone number. ● ● Note: The spaces between the commands and the t...
Page 29 - Starting the Session
CHAPTER 3: FIRST TIME USERS DEFINITY Communications System 7400B Data Module Page 3-6 User’s Guide EXAMPLE 4: Changing data options. at el &d2 s0=5 [ Enter ] This command line is a command sequence that sets up the 7400B DataModule to automatically answer incoming calls. The commands set thefoll...
Page 30 - Disconnecting a Data Call; NO CARRIER
DEFINITY Communications System CHAPTER 3: FIRST TIME USERS 7400B Data Module User’s Guide Page 3-7 Another possible problem is that the remote end response containsnormal words mixed in with strange characters, many of which are left brackets ([). This usually indicates that the remote device is sen...
Page 31 - CHAPTER 4: OPERATION AND CONFIGURATION; CONFIGURATION; stored profiles into the active profile.; permanently in ROM and you can issue an AT command to recall them; into the active profile at any time.
DEFINITY Communications System CHAPTER 4: OPERATION AND CONFIGURATION 7400B Data Module User’s Guide Page 4-1 CHAPTER 4: OPERATION AND CONFIGURATION This chapter describes how to change, store, and recall configurationparameters, outlines how to create and save custom configurationprofiles, and disc...
Page 32 - atz; PC Software
CHAPTER 4: OPERATION AND CONFIGURATION DEFINITY Communications System 7400B Data Module Page 4-2 User’s Guide Command Line: Action: a t & f [ Enter ] Recall the factory-default configuration settings into the active profile. at&v [ Enter ] Display current AT command settings and S-register v...
Page 33 - ISSUING COMMANDS; ERROR will be displayed on your terminal screen, and the command; Command Line Set Up
DEFINITY Communications System CHAPTER 4: OPERATION AND CONFIGURATION 7400B Data Module User’s Guide Page 4-3 In command mode, the 7400B Data Module looks at everything youtype on your keyboard. When you type in something that the datamodule recognizes as a valid command with a valid parameter (ifre...
Page 34 - ddd
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 thecommand: ats3= ddd [ Enter ] where ddd is a 1- to 3-digit decimal represen...
Page 35 - Command
DEFINITY Communications System CHAPTER 4: OPERATION AND CONFIGURATION 7400B Data Module User’s Guide Page 4-5 Command Most commands are acted upon immediately and are acknowledged by Acknowledgement the result code OK. This assumes that the result codes are configured inthe verbose form (command V1 ...
Page 36 - Multiple Characters; at; FROM DATA MODE TO; atd
CHAPTER 4: OPERATION AND CONFIGURATION DEFINITY Communications System 7400B Data Module Page 4-6 User’s Guide Multiple Characters If you type in the at prefix and it displays on your screen as aatt, you may disable the command echo by typing the following command: ate0 [ Enter ] The command will app...
Page 37 - nnnn; REPEATING A COMMAND
DEFINITY Communications System CHAPTER 4: OPERATION AND CONFIGURATION 7400B Data Module User’s Guide Page 4-7 The following is an example: atd74768 [ Enter ] In the example, the command will cause the data module to go off hook,dial the number, and then wait the period of time specified in S-registe...
Page 38 - TABLE 4-3 Commands for Using Stored Telephone Numbers; nnn
CHAPTER 4: OPERATION AND CONFIGURATION DEFINITY Communications System 7400B Data Module Page 4-8 User’s Guide Command line: Action: at&z Store number nnn...n in location m, which is one of fourlocations designated by the numbers 0 through 3. For m=nnn...n [ Enter ] example: at&z2=92015551212...
Page 39 - REMOTE SITE USE
DEFINITY Communications System CHAPTER 4: OPERATION AND CONFIGURATION 7400B Data Module User’s Guide Page 4-9 If nnn is 0 (the factory-default setting), the automatic answer feature isturned off. The red LED on the front of the data module labeled “AA” lights when the automatic feature is turned on....
Page 40 - and need to start over. The form for this command is as follows:
CHAPTER 4: OPERATION AND CONFIGURATION DEFINITY Communications System 7400B Data Module Page 4-10 User’s Guide A second command allows you to recall the factory-defaultconfiguration if, for instance, you loose track of changes you have made and need to start over. The form for this command is as fol...
Page 41 - CHAPTER 5: TROUBLESHOOTING; HOW TO USE THIS; ath
DEFINITY Communications System CHAPTER 5: TROUBLESHOOTING 7400B Data Module User’s Guide Page 5-1 CHAPTER 5: TROUBLESHOOTING This chapter describes procedures for troubleshooting most problems that may be encountered while installing, configuring, and operating the7400B Data Module. HOW TO USE THIS ...
Page 42 - Symptom; atel
CHAPTER 5: TROUBLESHOOTING DEFINITY Communications System 7400B Data Module Page 5-2 User’s Guide Symptom Problem Solution All LEDs are off. Power is off. Check that the AC outlet is live.Check that the power supply unit isconnected to the 7400B Data Module and to the AC outlet. POWER/TEST and DATA ...
Page 43 - CARRIER may be
DEFINITY Communications System CHAPTER 5: TROUBLESHOOTING 7400B Data Module User’s Guide Page 5-3 Symptom Problem Solution Call disconnects The speed of the far end immediately after an device is higher than the attempt to connect; NO speed of the local terminal CARRIER may be device. displayed on t...
Page 44 - DATA LED remains lit.
CHAPTER 5: TROUBLESHOOTING DEFINITY Communications System 7400B Data Module Page 5-4 User’s Guide Symptom Problem Solution The PC communications The data module has software indicates that the ignored the on-to-off call has been transition of the DTR disconnected, but the lead. DATA LED remains lit....
Page 46 - n n n n
CHAPTER 5: TROUBLESHOOTING DEFINITY Communications System 7400B Data Module Page 5-6 User’s Guide Symptom Problem Solution Transmitted and/or Speed settings of the Change terminal device speed to received data contains terminal device and the agree with the speed that was errors. data module are not...
Page 47 - CONNECT
DEFINITY Communications System CHAPTER 5: TROUBLESHOOTING 7400B Data Module User’s Guide Page 5-7 Symptom Problem Solution Commands are displayed The local terminal device Set the terminal device for one of without error as they are is set to a speed not the supported speeds: 300, 1200, typed (echoe...
Page 48 - APPENDIX A: AT COMMAND SET; Label; A brief, functional description of the command is provided here.
DEFINITY Communications System APPENDIX A: AT COMMAND SET 7400B Data Module User’s Guide Page A-1 APPENDIX A: AT COMMAND SET This appendix contains an explanation of each AT command acceptedby the 7400B Data Module. Labels used in the descriptions are definedas follows: Label Description Command: Th...
Page 49 - used with or affect the use of the current command.
APPENDIX A: AT COMMAND SET DEFINITY Communications System 7400B Data Module Page A-2 User’s Guide Label Description (Contd.) Example: A sample command line follows this label to demonstrate how the command may be used. Comments: An explanation of the example and any other information about the comma...
Page 51 - ata
APPENDIX A: AT COMMAND SET DEFINITY Communications System 7400B Data Module Page A-4 User's Guide Command: Function: Type: Arguments: S-Register: Example: Comments: See Also: A Go off-hook in Answer mode. immediate none Bit 7 of S14 is set to 0. ata [ Enter ] The A command causes the data module to ...
Page 52 - atdtTEXAS
DEFINITY Communications System APPENDIX A: AT COMMAND SET 7400B Data Module User’s Guide Page A-5 Command: D Function: Dial a telephone number. Type: immediate Arguments: The D command requires an ASCII character string, which is sent by the data module to the PBX. The string may include any ASCIIch...
Page 55 - ato
APPENDIX A: AT COMMAND SET DEFINITY Communications System 7400B Data Module Page A-8 User’s Guide Command: I Function: Request product code or ROM checksum. Type: immediate Arguments: The I command accepts one of three arguments as follows: 0 - The data module displays the decimal number 249, follow...
Page 56 - atv
DEFINITY Communications System APPENDIX A: AT COMMAND SET 7400B Data Module User's Guide Page A-9 Command: Function: Type: Arguments: S-Register: Example: Comments: atq1 [ Enter ] See Also: Q Turn the display of result codes on or off. configuration No argument or an argument of 0 enables the displa...
Page 58 - Reset and recall a stored profile.
DEFINITY Communications System APPENDIX A: AT COMMAND SET 7400B Data Module User’s Guide Page A-11 Command: Z Function: Reset and recall a stored profile. Type: immediate Arguments: No argument or an argument of 0 recalls the configuration profilestored in location 0; an argument of 1 recalls the co...
Page 62 - Comments
DEFINITY Communications System APPENDIX A: AT COMMAND SET 7400B Data Module User’s Guide Page A-15 Command: &T Function: Control diagnostic and test facilities. Type: immediate Arguments: The &T command accepts one of eight arguments (see comment 2) as follows: 0 - (or no option) terminate a...
Page 66 - mm
DEFINITY Communications System APPENDIX B: S-REGISTERS 7400B Data Module User’s Guide Page B-1 APPENDIX B: S-REGISTERS This appendix contains an explanation of each S-register used by the 7400B Data Module. An S-register is an 8-bit location in non-volatile memory that is used for storing the value ...
Page 67 - decimal
APPENDIX B: S-REGISTERS DEFINITY Communications System 7400B Data Module Page B-2 User’s Guide Label Description Register: The S-register is identified following this label. Note that the names for S-registers 1 through 9 may be typed as two-digit numbers withleading zeros, if desired, for readabili...
Page 68 - Any changes to non-storable S-registers are lost when
DEFINITY Communications System APPENDIX B: S-REGISTERS 7400B Data Module User’s Guide Page B-3 Label Description (Contd.) Storable: A yes after this label indicates that the contents of this S-register willbe written when the current configuration profile is saved to one of the two configuration pro...
Page 69 - yes; Range of
APPENDIX B: S-REGISTERS DEFINITY Communications System 7400B Data Module Page B-4 User’s Guide Register: S0 Description: The value in this S-register represents the ring number on which anincoming call will be automatically answered. Range of The value may be 000 through 255 rings. The factory-defau...
Page 73 - — not used; n o
APPENDIX B: S-REGISTERS DEFINITY Communications System 7400B Data Module Page B-8 User’s Guide Register: S11 — not used Register: S12 Description: The value in this S-register determines the minimum delay required immediately before and after entering the escape sequence (guardtime). It also determi...
Page 77 - This S-register is used to store the status of bit-mapped options as; Refer to the explanation of hexadecimal values under the Range
2. APPENDIX B: S-REGISTERS DEFINITY Communications System 7400B Data Module Page B-12 User’s Guide Register: S21 Description: This S-register is used to store the status of bit-mapped options as follows: bit 0 — not used (default = 0, see comment 1) bit 1 — not used (always set to 0) bit 2 — not use...
Page 81 - APPENDIX C: APPLICATION NOTES; PBX APPLICATION NOTES; administer specific AT&T PBX systems for using the data module and
DEFINITY Communications System APPENDIX C: APPLICATION NOTES 7400B Data Module User’s Guide Page C-1 APPENDIX C: APPLICATION NOTES PBX APPLICATION NOTES PC APPLICATIONS GUIDE This appendix provides a list of application notes that describe how to administer specific AT&T PBX systems for using th...
Page 82 - PROCOMM PLUS; pcplus
APPENDIX C: APPLICATION NOTES DEFINITY Communications System 7400B Data Module Page C-2 User’s Guide PROCOMM PLUS Procomm Plus is a data communications software package produced by Configuring the Software 1 . Datastorm Technologies, Inc. The following procedures are based onversion 1.1B of the soft...
Page 83 - MENU of the PROCOMM PLUS SETUP UTILITY.; Placing a Call; DIALING DIRECTORY shown below.
DEFINITY Communications System APPENDIX C: APPLICATION NOTES 7400B Data Module User’s Guide Page C-3 A – B – C – D – E – PROCOMM PLUS SETUP UTILITY MODEM RESULT MESSAGES 300 baud connect message . . . . . . CONNECT 1200 baud connect message . . . . . CONNECT 1200 2400 baud connect message . . . . . ...
Page 84 - DIALING DIRECTORY screen shown, type the required data.; Disconnecting Call; DIALING DIRECTORY, or press
APPENDIX C: APPLICATION NOTES DEFINITY Communications System 7400B Data Module Page C-4 User’s Guide DIALING DIRECTORY: PCPLUS NAME NUMBER SCRIPT 1 2400 N-8-1 F 2 2400 N-8-1 F 3 2400 N-8-1 F 4 2400 N-8-1 F 5 2400 N-8-1 F 6 2400 N-8-1 F 7 2400 N-8-1 F 8 I -- I Revise Entry 1 I ------------------- I 2...
Page 85 - RELAY GOLD; install; Placing a Call Directly
DEFINITY Communications System APPENDIX C: APPLICATION NOTES 7400B Data Module User’s Guide Page C-5 RELAY GOLD Relay Gold is a data communications software package produced byRelay Communications, Inc. The following procedures are based onrelease 3.0 of the software package. Configuring the Softwar...
Page 86 - Placing a Call Through the; Directory of Computers option.
APPENDIX C: APPLICATION NOTES DEFINITY Communications System 7400B Data Module Page C-6 User’s Guide 2 . Type the telephone number of the system you want to call, and Relay Gold sends the number to the 7400B Data Module to dial the system. Placing a Call Through the This example uses ATTMAIL as the ...
Page 87 - Directory of Computers screen.; Disconnecting a Call
DEFINITY Communications System APPENDIX C: APPLICATION NOTES 7400B Data Module User’s Guide Page C-7 7 . 8. 9. Make any necessary changes in the appropriate fields. Press [ Enter ] to save changes to the PC hard disk and display the Directory of Computers screen. Use the up and down arrow keys to se...
Page 88 - CROSSTALK XVI; xtalk
APPENDIX C: APPLICATION NOTES DEFINITY Communications System 7400B Data Module Page C-8 User’s Guide CROSSTALK XVI Crosstalk XVI is a data communications software package produced by Digital Communications Associates. Configuring the Software 1. At the DOS prompt, type xtalk [ Enter ] A title screen...
Page 90 - bye
APPENDIX C: APPLICATION NOTES DEFINITY Communications System 7400B Data Module Page C-10 User’s Guide 3. For a listed service: a. Enter the telephone number (for example, 5551234 or 9,5551234). Enter the baud rate (for example, 300, 1200, 2400). b. c. Enter any other parameters required for that spe...
Page 91 - AT Command Set
DEFINITY Communications System APPENDIX D: QUICK-REFERENCE SUMMARIES 7400B Data Module User’s Guide Page D-1 APPENDIX D: QUICK-REFERENCE SUMMARIES This appendix contains quick-reference summaries for the followingdata: AT Command Set ● ● S-Registers Result Codes ● Factory-Default Configuration ● ● E...
Page 94 - Register
APPENDIX D: QUICK-REFERENCE SUMMARIES DEFINITY Communications System 7400B Data Module Page D-4 User’s Guide Register Description R a n g e / U n i t S0 Ring to answer on. 000-255 count S1 Incoming ring count. 000-255 count S2 Escape sequence character. 000-127 ASCII S3 Carriage return character. 00...
Page 95 - Verbose Form
DEFINTY Communications System APPENDIX D: QUICK-REFERENCE SUMMARIES 7400B Data Module User’s Guide Page D-5 Verbose Form Numeric Description OK 0 CONNECTED 1 RING NO CARRIER ERROR CONNECT 1200 NO DIALTONE BUSY CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 19200 2 3 4 5 6 7 1 0 11 1 2 1 4 Command ac...
Page 96 - Value
APPENDIX D: QUICK-REFERENCE SUMMARIES DEFINITY Communications System 7400B Data Module Page D-6 User’s Guide Value AT Command Parameter Command state echo Communication mode Default user profile DCD circuit optionDSR circuit option DTR circuit option enabled E 1 asynchronous &M0/&Q0 profile ...
Page 97 - Parameter
DEFINITY Communications System APPENDIX D: QUICK-REFERENCE SUMMARIES 7400B Data Module User’s Guide Page D-7 Parameter Value S-Register Auto-answer on ring disabled S0=0 Backspace character ASCII 8 S5=8 Carriage return character ASCII 13 S3=13 Not used by 7400B Data Module — S9=6 Not used by 7400B D...
Page 98 - Pin
APPENDIX D: QUICK-REFERENCE SUMMARIES DEFINITY Communications System 7400B Data Module Page D-8 User’s Guide Pin Circuit Direction Function 1 — — not used 2 BA (SD) to 7400B transmit data 3 BB (RD) from 7400B receive data 4 CA (RTS) to 7400B request to send 5 CB (CTS) from 7400B clear to send 6 CC (...
Page 99 - TABLE D-6 ASCII CHARACTER SET
DEFINITY Communications System APPENDIX D: QUICK-REFERENCE SUMMARIES 7400B Data Module User’s Guide Page D-9 ASCII CONTROL KEY VALUE CHARACTER 000001002003004005006007 008 009 010 011012 013 014015 016 017 018 019 020 021 022 023 024025 026027028 029 030 031 !" #$ % & ' ( ) * -. : ; = ? (mor...
Page 100 - DEL
APPENDIX D: QUICK-REFERENCE SUMMARIES DEFINITY Communications System 7400B Data Module Page D-10 User’s Guide ASCII CONTROL KEY VALUE CHARACTER 064065066067068069070 071072 073 074075076077 078 079080081082 083 084 085 086087 088089090 091092093094 095 @A BC DEFGH IJ K L M N OP QR ST U VWXYZ [\] ^ ‘...
Page 101 - GLOSSARY; such as cursor movement and color or graphics configuration; Asynchronous data communications. A method of communicating; at the other end. Also called asynchronous mode, this method, as; Command line. A string of one or more valid and compatible AT; commands typed on one line with any applicable arguments. Most
DEFINITY Communications System GLOSSARY 7400B Data Module User’s Guide Page GL-1 GLOSSARY ANSI display protocol. A standard set of escape sequences, established by ANSI (the American National Standards Institute), used by manydisplay terminal devices to transmit or receive display control functions,...
Page 102 - asynchronous data communications and data metering.
GLOSSARY DEFINITY Communications System 7400B Data Module Page GL-2 User’s Guide Data metering. A selectable feature of the 7400B Data Module that allows the device and its associated terminal to operate at a higher speedthan the remote system to which it is connected. Data mode. See on-line mode. D...
Page 103 - On-line mode. An operating mode in which the 7400B Data Module; Option profiles. See configuration profiles.
DEFINITY Communications System GLOSSARY 7400B Data Module User’s Guide Page GL-3 Linked mode. A DIP-switch selected operating mode in which the7400B Data Module supports both data and voice services. On-line mode. An operating mode in which the 7400B Data Module transmits all characters coming from ...
Page 104 - ASCII character; INDEX; Cables
DEFINITY Communications System INDEX 7400B Data Module User’s Page Index-1 A Adjunct equipment, 2-1 power adapter, 2-1power supply, 2-1Crosstalk XVI, C-8 PBX, C-1 PC software, C-1Procomm Plus, C-2Relay Gold, C-5 ASCII character backspace, B-6, 4-4 carriage return, B-5character set, 4-4 dialing strin...
Page 106 - PC software
DEFINITY Communications System INDEX 7400B Data Module User’s Page Index-3 PC software Crosstalk XVI, C-8Procomm Plus, C-2Relay Gold, C-5 Plotter, 2-5 Power supply, 1-4, 1-5, 2-11Power-up self-test, 2-12Printer, 2-5 Profile active, 4-1 configuration, A-15, A-17, 4-1 stored, A-10 R Rear panel, 1-4 Re...
Page 107 - AT&T Bell Laboratories; Errata Sheets for 7400B Data Module User’s Guide; sheets attached to this memo replace any and all errata sheets.; Sandra Talarico
AT&T AT&T Bell Laboratories subject: Errata Sheets for 7400B Data Module User’s Guide date: from: December 11, 1990 Sandra TalaricoMT XGPK200002E-401 x957-6072 The attached five errata sheets contain modifications to the 7400B Data Module User’s Guide,order number 555-020-707 Issue 1 Novembe...
Page 108 - IMPORTANT SAFETY INSTRUCTIONS; Read and understand all instructions.
IMPORTANT SAFETY INSTRUCTIONS When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons, including the following: ● ● ● ● ● ● ● ● ● ● Read and understand all instructions. Follow all warnings and instructi...
Page 109 - SAVE THESE INSTRUCTIONS
● Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by people walking on it. ● Do not overload wall outlets and extension cords as this can result in the risk of fire or electric shock. ● Disconnect the cords on this product and refer servicing...
Page 110 - W A R N I N G; ITW LINXTM LP-type protectors; WARNING
IMPORTANT INSTALLATION SAFETY INSTRUCTIONS W A R N I N G When this product is located in a separate building from the telephone communications system, a line current protector MUST be installed at the entry/exit points of ALL buildings through whichthe line passes. The following are the ONLY accepta...
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