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Avaya 6424D+M User Manual

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See also: Feature Manual , User Manual
DEFINITY
Communications System
®
ISDN Asynchronous Data Module
Feature Package 3
User Manual
AT&T 555-021-729
Issue 1
November 1991

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  • Page 1 DEFINITY Communications System ® ISDN Asynchronous Data Module Feature Package 3 User Manual AT&T 555-021-729 Issue 1 November 1991...
  • Page 2 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

    Chapter 1 Introduction Data Features The System Administrator: An Important Note to All Users On the ISDN Network: An Important Note on System Dependencies Organization of the Users Manual Chapter 2 Getting Started Communicating With The ADM Setting Critical Options To Make a Data Call Making a Data Call Chapter 3 Using the CMD and AT Commands...
  • Page 4 Chapter 6 Technical Information EIA-232-D Lead Operation Packet Assembler Disassembler (PAD) Capabilities Messages on the Voice Terminal or the Attached Data Terminal Displays Troubleshooting Troubleshooting Use of the Data ZAP Command to Clear a Locked-up ADM Use of the Self-Test to Clear a Locked-up ADM Appendix A —...

  • Page 5: Introduction

    Congratulations on the addition of an Asynchronous Data Module (ADM II) to your AT&T Integrated Services Digital Network (ISDN) set. Following our tradition of excellent quality and high reliability, the ADM is designed to provide you with the latest in telecommunications technology (Figure 1).

  • Page 6: Data Features

    Data Features Asynchronous full-duplex operation at data rates from 1200 bits per second (bps) to 57.6 kilobits per second (Kbps) through an EIA-232-D interface. X.25 packet switched data communication including receipt of X.29 commands from a remote X.25 host for setting packet switched data parameters. Circuit switched data communication over 56 or 64 Kbps facilities via industry standard V.120 rate adaption protocol.

  • Page 7: The System Administrator: An Important Note To All Users

    The System Administrator: An Important Note to All Users Throughout this manual, we ask you to speak to your "system administrator." In your company, it is the person who has been given overall responsibility for the ISDN — including all terminals as well as the system.

  • Page 8: Organization Of The Users Manual

    Organization of the User´s Manual This manual is arranged into the following chapters. Chapter 1: Introduction Chapter 2: Getting Started — Explains how to set some data options from the keypad and how to make a data call. Chapter 3: Using the CMD and AT Commands — Explains when to type commands, and how to use CMD and AT Local Mode Commands.

  • Page 9: Getting Started

    Getting Started This chapter explains how to prepare your Asynchronous Data Module (ADM) for data operations and how to make data calls. Communicating With The ADM You can "talk" to the ADM through an attached data terminal by means of commands typed on the terminal’s keyboard.

  • Page 10: Setting Critical Options To Make A Data Call

    Local Mode In local mode, commands typed at the data terminal keyboard are read, interpreted, and acted upon by the ADM to make and end data calls as well as to modify data option values. There are two varieties of local mode: local-idle and local-data. The ADM is in local-idle mode whenever no data call has been initiated.
  • Page 11 uncorrected (UI-frame) mode connections over 56 Kbps facilities. The data mode option setting must correspond to the capabilities administered on your ISDN telephone line. Contact your System Administrator for information on the proper setting of this option. For more detailed information on data mode, refer to the Mode option in the "Data Option Definitions"...
  • Page 12 If you are viewing the options, press options. Press to quit once you have viewed the options. (When viewing the options, the currently active values are displayed.) If you are changing options, press desired value is displayed, press without making a change. (When changing the options, the values displayed are the power- up values.
  • Page 13 Press for odd. You hear a rising two-tone confirmation. Select your desired Local Mode setting. Press for CMD. (default setting) Press for off. Press for AT. Press for Enhanced AT. You hear a rising two-tone confirmation. After you have made your last selection, the ISDN set stores and activates your selections, and automatically exits the program mode.

  • Page 14: Making A Data Call

    Making a Data Call You can use the keypad of your ISDN set to initiate a data call, or you can initiate it from your data terminal or PC. If you initiate the call from your data terminal or PC, you can use CMD commands or AT commands.
  • Page 15 At the CMD: prompt, type dial and the telephone number. For example, type dial 5551212 . Note: When dialing, type: dial ; then one (and only one) space; then the number. Strict adherence to this format is necessary. For example, typing dial , two spaces, and the string results in the second space being transmitted as the first character in the dialed string.

  • Page 16: Using At Local Mode Commands

    Making a Data Call From a Terminal or PC Using AT Local Mode Commands The Local Mode data option must be set for AT Local Mode. See the earlier section, "Setting Options To Make a Data Call". Turn on your data terminal or PC. If you are using a PC, make certain your communications software is configured properly at the speed and parity you want to use.

  • Page 17: Using The Cmd And At Commands

    Using the CMD and AT Commands When to Type Commands You can only type commands using the data terminal keyboard to dial calls, program, and maintain your system when your ADM is in Local Mode. When your ADM is in CMD Local Mode or AT Local Mode, you are not transmitting data;...

  • Page 18: Using Cmd Local Mode Commands

    Using CMD Local Mode Commands This section provides a list of the CMD commands, has information on getting on-screen help with commands, and procedures for using the commands. To execute a command, type the command, then press execute a command. If you make an error while typing, use hold down the key labeled CTRL...
  • Page 19 Help for CMD Commands You can ask for help any time that you have a CMD: prompt on the screen. When you type help , the system displays the following screen: CMD: help Type HELP and the topic you want to learn more about. Examples: help test, h attention COMMANDS:...
  • Page 20 CMD: help end The ADM responds: Type END to end a data call in progress. Abbreviating CMD Commands You can abbreviate command names. You need only type the "unique" part of the name (See Table 3-1). For example, dial becomes d, and continue becomes con. You can abbreviate option names in the same way.
  • Page 21 Changing from CMD Local Mode to AT Local Mode To change from CMD local mode to AT local mode, at the CMD: prompt, type &&h and press . The ADM responds: AT COMMAND MODE . RETURN X.25 Call Options If you are using the DX.25 Data Mode, you may need to specify call options when you dial a data call.
  • Page 22 Programming Telephone Numbers for Memory Dialing You can program up to nine telephone numbers for memory dialing of data calls and assign them customized names for easy access. Up to 30 digits can be entered. These numbers are labeled m1 through m9. Options associated with a memory dialing number include the telephone number, user selectable name, data profile, and X.25 call options described in the previous section, except call user data.

  • Page 23: Memory Dialing

    Memory Dialing The ADM dials the number and loads any data profile that was stored with the telephone number. For example, use the following command to dial a number stored at memory location 1: At the CMD: prompt, type dial m1 or dial name or just simply name where name is the actual name you have assigned to the memory number.

  • Page 24: Using At Local Mode Commands

    Using AT Local Mode Commands The AT Local Mode provides an interface similar to that available on many popular modems. In particular, the AT mode is appropriate when using a PC with communications software that uses AT commands. If you need to use AT Local Mode, you should have selected the "AT" option when you first set the data options from your keypad.
  • Page 25 Changing from AT Local Mode to CMD Local Mode To exit AT mode and return to the CMD local mode, type: at&&t at&&a If there is no data call active, the ADM responds: Call Status: Idle Type H for help CMD: If there is a data call active, the system responds: Call Status: Data Call Active...
  • Page 26 Table 3-2: AT Commands and Applications Command To answer an incoming call atd <string> or To dial a data call atdt<string> atdp<string> To dial a voice call from the terminal keyboard ate or ate0 To disable command echo aten To enable command echo (where n is any digit other than 0) To disconnect data calls from the AT local mode ati1 To request four-character ROM checksum...
  • Page 27 S-Registers The S-registers provide a means of changing or reading selected ADM options. In most cases, the values defined for the S-registers listed in Table 3-3 are acceptable. However, if the values are not acceptable, use the information below to change the values. To view the value of a particular S-register, type ats n?, and the register you want).
  • Page 28 Dialing a Voice Call To dial a voice call from your PC or terminal keyboard type: atdp 5551212 and press Depending on your ISDN set’s configuration, the ADM may automatically turn on its speakerphone/loudspeaker while the voice call is being dialed, after the call has been dialed, or not at all.

  • Page 29: Data Options And Profiles

    Data Options and Profiles The ADM stores data options (configuration information) to tell it how to communicate with the far end. The options, listed in Table 4-1, are explained in this chapter. For most applications, you’ll find that the CMD Local Mode factory default settings (those settings are in bold print in the table) will work for you.* If you need to change any of the options, you can store them in a data option profile.
  • Page 30 Option Answer Attention Autoadjust Break Char.erase Echo Edit FCPN Forwarding Idle.timer Line.erase Local.cr Local.echo Local.erase Local.lf Match.speed Min.timer Mode Parity Rec.flow Speed Text Trans.flow V120.ps V120.ws Chapter 4 Table 4-1: Data Option Values Possible Values auto, manual off, 3 of the same ASCII character (+++) on, off off, attention, interrupt, break, discard, reset , delete...

  • Page 31: Data Option Definitions

    Data Option Definitions The following descriptions assume single-stream operation which is the case when API is not being used. Refer to the ISDN Application Programming Interface Programmer’s Manual for more information on single-stream and autostream. Note that the examples used in this section assume the use of CMD mode. Answer Option Values: auto, manual Applicable Data Protocols: All...
  • Page 32 Autoadjust Option Values: on, off Applicable Data Protocols: All If Autoadjust is on, the ADM automatically adjusts to the speed and parity of your attached data terminal when you press BREAK transmits the CMD: prompt to your data terminal with the current (new) speed and parity. Note: Failure to complete this sequence within 5 seconds may result in improper speed setting.
  • Page 33 DCD (Data Carrier Detect) Option Values: follow, ignore Applicable Data Protocols: All This option determines whether the ADM turns on the Data Carrier Detect (DCD) lead when a data call is in progress, and off when one is not (follow), or whether it keeps DCD on essentially all the time (ignore).
  • Page 34 If you select on, the ADM echos characters sent by your data terminal during Data Mode. Select on if your host computer or other data endpoint does not echo characters. In addition, you will want to turn your data terminal’s echo capability off. If you select off, the ADM does not echo characters sent during the Data Mode.
  • Page 35 Forwarding Option Values: off, cr (carriage return), ctrl (all control characters and DEL), alpha (all alphanumerics), all (all characters) Applicable Data Protocols: X.25, Mode 3, BV64I, BV56I The ADM sends data through the network in packets if the data protocol is X.25, Mode 3, BV56I or BV64I.
  • Page 36 Like Char.erase, Line.erase is enabled only when Edit is enabled. Select the character that best meets your needs. If you do not have a and press . To use NAK, hold down CONTROL The Line.erase character is not sent out in the data packet. Local.cr Option Values: Any ASCII character except NUL, SOH, , BS (default = CR)
  • Page 37 Local.lf Option Values: Any ASCII character except NUL, SOH, , or BS (default = LF) Applicable Data Protocols: N/A This option selects the character used as a linefeed during transmission of responses to Local Mode commands or when Local Mode commands are echoed. Some PC communications packages access this option from the AT Local Mode.
  • Page 38 approximately 10 milliseconds, then packets are transmitted to the network without artificial delay. This is the case for a person typing. If characters are received more closely spaced in time than as described above, characters are assembled into packets. This may be the case of a computer answering a data base query or transferring a file.
  • Page 39 Note: Mode 2 and Mode 3 are defined in the AT&T Digital Multiplexed Interface (DMI) Technical Specification. For a copy of this manual, Document 555-025-204, call the Customer Information Center at 1-800-432-6600. DX25 An abbreviation for D-Channel X.25, configures the ADM for establishment of outgoing data calls using X.25 packet switched data on the D-Channel.
  • Page 40 asynchronous data character end-to-end as information, rather than checking or generating a parity bit. V.120 data calls are accepted by your ADM from endpoints provided that the parity setting carried within the call setup information indicates a valid character size and parity combination: 8-bit none, 7-bit odd, 7-bit even, 7-bit mark, or 7-bit space.
  • Page 41 Speed Option Values: 1200, 2400, 4800, 9600, 19.2, 38.4, 57.6 Kbps Applicable Data Protocols: All Use this option to change the speed at which data communications take place. To set this option from an asynchronous attached terminal, do the following: 1 Type set speed value (for example, set speed 9600) to tell the ADM the speed at which you want to communicate.
  • Page 42 This option determines which method is used to control the flow of data from your data terminal to the ADM. When you select xon/xoff, the ADM sends your data terminal an xoff character (with current parity) when it is not ready to receive data. The ADM sends an xon character (with current parity) to your data terminal when it is ready to receive data.

  • Page 43: Data Option Profiles

    Data Option Profiles This section describes the available data options profiles and how to create and use your own profiles. Types of Data Option Profiles A data option profile is a group of option settings. You create a profile by selecting values for each option.
  • Page 44 The system responds: pA updated To replace one stored profile with another, copy the replacement profile to the replaced profile; for example, type: copy p2 to p1 The above command copies the values of p2 into p1 so they are identical. Table 4-2 summarizes the information that is described in detail in the following sections.
  • Page 45 1 At the CMD: prompt, type program p1 and press The ADM displays the current option values for p1 and prompt: Type option name (or Q to quit): 2 Type the name of the option (for example, answer) that you want to change and press RETURN The ADM displays the current value and the possible values for that option and prompt: Type new value (or Q to quit):...
  • Page 46 For example: set echo set text Note: Values in pA are not automatically stored. Unless you only want to temporarily change options, it is important to save any changes by copying pA to one of the stored profiles. In the event of a power failure, pA values are overwritten by values in p1. To store pA, at the CMD: prompt type: copy pA to p1 or, for example,...
  • Page 47 Replacing One Stored Profile With Another To replace one stored profile with another, type copy replacement profile to replaced profile. For example, type: copy p0 to p1 replaces the values of p1 with the values of p0. Note: In all of the above command procedures, the word "to" is optional. Examples of the command without "to"...

  • Page 48: Typical Data Option Settings For Data Transfer

    Typical Data Option Settings for Data Transfer This section describes the options you may need to modify for three common types of data transfer. Character by Character Transmission or ASCII File Transfer For typical character by character data transmission, activate the factory profile (p0). Depending upon the network’s configuration, it may be necessary to change the Mode option to DX25 or one of the V.120 modes.
  • Page 49 greater than 19.2 Kbps. For these data modes, you may or may not be able to successfully transfer files at speeds as high as 38.4 or 57.6 Kbps. Worksheet — Option Profile Settings Complete the following worksheet to record your desired option profile settings for p1, p2 p3, and p4.

  • Page 51: Testing

    You can perform three tests on your ADM: local loopback test, remote loopback test, and self- test. Taken together, these three tests help you to isolate data communications problems. Local Loopback Test The purpose of the local loopback test is to ensure that there are no data transmission errors in the local part of the data transfer circuit (between the data terminal and the ADM).

  • Page 52: Remote Loopback Test

    Remote Loopback Test This test requires compatible AT&T equipment at the remote end. The remote loopback test ensures that no problems with data transmission are occurring in the data transfer circuit. When you initiate a remote loopback test, data is transmitted from the data terminal, through your ADM and the network to the data module at the far-end, where it is looped back to your ADM.
  • Page 53 Self-Test The self-test can be used to reset the data options in the Active profile. Unlike the Data ZAP command (see "Use of the Data ZAP Command to Clear a Lock-up ADM" in the Troubleshooting section), which resets the options to factory default values, the self-test resets all the data options in the Active profile to their power-up (P1) values without unplugging the ADM.

  • Page 55: Technical Information

    Technical Information EIA-232-D Lead Operation The following description assumes single-stream operation which is the case when API is not being used. Refer to the ISDN Application Programming Interface Programmer’s Manual for more information on single-stream and autostream. This section describes the assignments of the EIA-232-D leads. Direction To ADM From ADM...
  • Page 56 In the data mode, data transmitted to the data terminal consists of one start bit, eight information bits, and one stop bit. The parity of data received from the network is transported to the data terminal without alteration, except if requested to do so by X.29 message from a remote X.25 host.
  • Page 57 Pin 20 — Data Terminal Ready (CD) This circuit allows the attached terminal to control the ADM’s connection to the network. When the DTR option is set to FOLLOW, the ADM requires an ON condition to interact with the attached terminal or to initiate or maintain a data connection or test sequence (except the local self-test).

  • Page 58: Packet Assembler Disassembler (Pad) Capabilities

    Packet Assembler Disassembler (PAD) Capabilities The ADM options provide capabilities outlined in the CCITT X.3, X.28, and X.29 specifications. The local mode commands provide the functions analogous to those specified in X.28. The ADM supports receipt of X.29 SET and READ parameter messages received from a remote X.25 host.
  • Page 59 Parameter Parameter Reference Description Number Pad Recall character Echo Selection of data forwarding character Selection of idle timer delay Transmit Flow Control (PAD indicates to DTE) Control of PAD Service Signals Selection of operation of the PAD on receipt of Break signal Discard output Padding after...
  • Page 60 Parameter Parameter Reference Description Number Binary speed of start-stop DTE Receive Flow Control (DTE indicates to PAD) Linefeed insertion after carriage return Padding after LF Editing Character Erase Line Erase Line Display Editing PAD service signals Echo Mask Parity Treatment Page Wait Remote Loopback * R/W = Read/Write, RO = Read Only, NI = Not Implemented...

  • Page 61: Messages On The Voice Terminal Or The Attached Data Terminal Displays

    Messages on the Voice Terminal or the Attached Data Terminal Displays This section describes various messages that may appear on your 7506 or 7507 display or your attached data terminal. CONTINUE may appear when dialing a call or a particular feature access code. At this point, additional digits may be required to complete the call.

  • Page 63: Troubleshooting

    Use of the Data ZAP Command to Clear a Locked-up Following is a list of circumstances which can result in a lock-up condition between the ADM and your data terminal or PC. Note, there may be other similar conditions which will cause a lock-up as well.

  • Page 64: Use Of The Self-Test To Clear A Locked-Up Adm

    Use of the Self-Test to Clear a Locked-up ADM Self-test can also be used to reset the data options in the Active profile. Unlike the Data ZAP, which resets the options to their factory default values, the self-test resets all the data options in the Active profile to their power-up (P1) values and loads the power-up values for the profile independent data options (speed, parity, and local mode) and the unstored data options (local.cr, local.lf, and local.erase).

  • Page 65: Appendix A - Cause Code Tables

    Appendix A — Cause Code Tables The Text option allows you to select numeric (diagnostic) or verbal formats for the ADM’s presentation of network generated call progress and error code information. These tables are used to translate between numeric codes and their English text equivalents. In the following tables, there are references to unknown numeric cause and diagnostic codes in the form of xxx and nnn.
  • Page 66 Packet Type Stimulus Clear Reset Decimal Decimal Cause,Diag. Cause,Diag. ENDED RESET 0,0 or 128,0 0,0 or 128,0 0,nnn or 128,nnn 0,nnn or 128,nnn 1,0 or 129,0 1,72 or 129,72 1,nnn or 129,nnn 3,0 or 131,0 3,65 or 131,65 3,66 or 131,66 3,nnn or 131,nnn 5,0 or 133,0 7,0 or 135,0...
  • Page 67 Table A-2 Q.931 Signal Messages Decimal Value LCD and EIA Port Text DIAL TONE ON RINGING INTERCEPT TONE ON REORDER TONE ON BUSY TONE ON CONFIRM TONE ON ANSWER TONE ON CALL WAIT TONE ON O-H WARNING TONE ON CUSTOM TONE ON BUSY VERIFY TONE ON ERROR TONE ON STUTTER DIAL TONE ON...
  • Page 68 Table A-3: Q.931 Cause Messages Decimal Value Unassigned number No route to specified network Channel unacceptable Normal, clearing User busy No user responding No answer from user (user alerted) Call rejected Number changed Destination out of order Invalid number format (incomplete number) Requested facility rejected Response to STATUS ENQuiry Normal, unspecified...

  • Page 69: Glossary

    GLOSSARY ANSI display protocol. A standard set of escape sequences, established by ANSI (the American National Standards Institute), used by many display terminal devices to transmit or receive display control functions, such as cursor movement and color or graphics configuration parameters.
  • Page 70 attempts to adjust to match the speed of the remote device. Also called communications parameters. See also asynchronous data communications and data metering. Data Terminal Equipment. (DTE) A device that sends and/or receives data over a communication line via a DCE. Examples of DTE devices are a display terminal, a PC running appropriate data communications software, or a printer or plotter.
  • Page 71 Abbreviating CMD commands, 3-4 Activating a stored profile, 4-18 Active profile pA, 4-15, 4-19 storing, 4-18 ADM Options CCITT, 6-4 Answer data option, 4-3 Asynchronous Data Module, 1-1 AT commands, 2-1, 3-9 AT local mode, 3-1 AT local mode commands, 3-8 AT mode, 3-5 exiting, 3-9 AT&T 5ESS , 1-3...
  • Page 72 Data calls, 2-1 Data carrier detect data option, 4-5 Data features, 1-2 Data mode, 2-1 Data Mode, 2-2 Data mode, 2-2 DX.25, 3-5 Data operations, 2-1 Data option answer, 4-3 attention, 4-3 autoadjust, 4-4 break, 4-4 character erase, 4-4 data carrier detect, 4-5 data terminal ready, 4-5 echo, 4-5 edit, 4-6...
  • Page 73 Local Mode AT, 2-3 CMD, 2-3 Enhanced AT, 2-3 Local mode local-data, 2-2 local-idle, 2-2 Local Mode Off, 2-3 Local.cr data option, 4-8 Local-data, 2-2 Local.echo data option, 4-8 Local.erase data option, 4-8 Local-idle, 2-2 Local.lf data option, 4-9 Making a data call, 2-2, 2-6 ISDN set, 2-6 PC, 2-6 terminal, 2-6...
  • Page 74 Signal ground (AB), 6-2 Signal messages, A-3 Simultaneous voice and data communications, 1-1 Single-stream, 4-3, 6-1 Speed, 2-3 data option, 4-13 S-Registers, 3-11 Stored profile activating, 4-18 replacing, 4-19 Stored profiles p1 through p4, 4-15 Storing an active profile pA, 4-18 Suspending data transmission, 3-4 System Administrator, 1-3 System dependencies, 1-3...

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