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Telenetics 326X V.34 User Manual

Telenetics modem user's guide
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Telenetics
12
RD
TR
RI/OH
3260
TD
CD
RC/NC
326X V.34, V.34-SDC, and V.32bis Series Modem
User's Guide

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Summary of Contents for Telenetics 326X V.34

  • Page 1 Telenetics RI/OH 3260 RC/NC 326X V.34, V.34-SDC, and V.32bis Series Modem User’s Guide...

  • Page 2: Restricted Rights Notification For U.s. Government Users

    Notice ©2001 Telenetics Corporation 25111 Arctic Ocean Lake Forest, California 92630 (949) 455-4000 All rights reserved Printed in U.S.A. Restricted Rights Notification for U.S. Government Users The software (including firmware) addressed in this manual is provided to the U.S. Government under agreement which grants the government the minimum “restricted rights”...

  • Page 3: Proprietary Material

    Use of software described in this document is subject to the terms and conditions of the Telenetics Software License Agreement.
  • Page 4 This product is CE marked to indicate compliance with the following European directives. • 73/23/EEC Low Voltage Directive (Safety) • 89/336/EEC EEC Directive Compliance with the above directives may only be assured when the equipment is installed and operated in accordance with the instructions for its use and the purpose for which it is intended.

  • Page 5: Table Of Contents

    Chapter 1, About the Modem Introduction ... Safety and Operational Notices ... Operating the Modem from the Front Panel ... Selecting Programmed Option Sets ... Automatic Calling Interfaces (ACUs) ... AT ACU ... V.25bis ACU ... LPDA2 ACU ... Managing a Modem ... Restoring Data Transmission ...
  • Page 6 Contents (continued) Using the Modem with a Network Management System (NMS) ... Using the AT Automatic Calling Unit (ACU) ... Other Call Establishment Methods ... V.25bis ACU for Sync or Async Applications ... NetView LPDA-2 ACU for Sync Applications ... Sync Dialing from an IBM AS 400 ...
  • Page 7 The Escape Sequence—(+++) ... Non-Configuration AT Commands ... S-Registers ... Chapter 6, Troubleshooting Guide Introduction ... Troubleshooting ... 326X Series Modem Diagnostic Tests ... Synchronous Data Compression (SDC) Testing ... Appendix A, Configuration Quick Reference Configuration Quick-Reference—Menu Trees ... For More Detail ... Audience and Assumptions ...
  • Page 8 Contents (continued) 3265 Dial Only Modem ... 3266 Modem (Leased Line with Dial Restoral) ... Rear Panel Interface Pinouts ... Standalone Models 3260/65 and 3261/66 Interface Pinouts ... Card Models 3262/67, 3263/68 Backplane Interface Pinouts ... Delayed and Forbidden Lists ... Australia—Delayed Call Lists ...
  • Page 9 Glossary Return Procedures Equipment Return Procedures ... Expiration of Lease ... Factory Repair ... Packaging Guidelines for Equipment Return ... Contents (continued) ret-2 ret-2 ret-2 ret-2...

  • Page 11: Series Modem Family

    Some 326XFAST-SDC models are available with a V.35-compatible interface. This unit has a DB25 connector, so a converter is required. Product Family Model Numbers Telenetics refers to the product family as 326X because the last digit denotes the modem model. Model numbers (“X”) are as follows. This Model Number...

  • Page 12: Documentation Target Audience

    326X V.34 Series Modem Reference Card (TEL–T0009-01) For a quick reference to AT, AT&, and AT disconnect codes, see the 326X V.34 Series Modem Reference Card. The card also includes a menu tree of front panel options and AT command settings.
  • Page 13 Chapter 6, Troubleshooting Guide, is a quick reference to problems and suggestions for correcting them. This chapter assists you in isolating and correcting a problem before calling Telenetics’ Customer Support Center. Appendix A, Configuration Quick Reference, provides reference material you need to change a modem’s default settings.
  • Page 14 Available as an optional order item, the 326X Series Modem Reference Guide is designed for users who require more detail on operating the modem’s configuration options and diagnostic self-tests. Contact your Telenetics sales representative or local distributor for ordering information.

  • Page 15: Special Notices

    Conventions The following conventions are used in this manual: • User entries appear as follows: AT • System messages appear as follows: • A carriage return appears as follows: <CR>. It designates the Return or Enter key. It is used to complete a text entry or initiate an action from the keyboard. Special Notices These notices emphasize certain information in the manual.

  • Page 16: Messages Spéciaux

    Using the Documentation Set (continued) Messages spéciaux Les messages suivants mettent en valeur certaines informations dans le guide. Chacun d’eux remplit une fonction spéciale et est affiché dans le format indiqué. IMPORTANT: Important est utilisé pour souligner des informations critiques au sujet d’une procédure.

  • Page 17: Avisos Especiales

    Avisos Especiales Los siguientes avisos hacen hincapi Cada uno de ellos tiene un propósito especial y aparecen con el formato siguiente: IMPORTANTE: Importante se utiliza para enfatizar cualquier informaci procedimiento importante. Using the Documentation Set (continued) é en determinada información de la guía. Precaucion La precaución le ofrece información, que de no cumplirse, puede derivar en posibles daños tanto para el software y el...

  • Page 19: Questions About Your Product Shipment

    Introduction U.S.A. customers who have questions about Telenetics products or services should refer to the following sections. Non-U.S.A. customers should contact their local Telenetics subsidiary office or distributor. Questions about Your Product Shipment If you have questions about whether your shipment is complete or about its condition upon receipt, please call your nearest Telenetics representative.

  • Page 20: Sales-Related Issues

    You can purchase a service contract or arrange for Time and Material services by calling (949) 455-4000. Sales-Related Issues Call your local Telenetics sales office or authorized distributor. For a listing of our Sales Offices, visit our Web site at: http://www.telenetics.com. Comments about the Manual To help us improve our product documentation, please complete and return by mail, or fax to (949) 455-4010, the prepaid comment card on the next page.

  • Page 21: Troubleshooting

    Contents Introduction ... Safety and Operational Notices ... Operating the Modem from the Front Panel ... Selecting Programmed Option Sets ... Automatic Calling Interfaces (ACUs) ... AT ACU ... V.25bis ACU ... LPDA2 ACU ... Managing a Modem ... Restoring Data Transmission ... ITU-T V.34 Compliant Modulation Mode ...

  • Page 22: Chapter 1, About The Modem

    Whether you use dial or leased lines, you can operate the modem as follows: • Using the front panel: control keys and liquid-crystal display (LCD) • Using industry-standard (AT and AT&), and Telenetics-enhanced (AT commands from an attached terminal, or commands from an asynchronous communications software package running on an attached PC •...

  • Page 23: Safety And Operational Notices

    TR RI/OH 3260 CD RC/NC Figure 1-1. 326X Series Modem, Standalone Desktop Model Safety and Operational Notices Repair Warning Do not attempt to repair the modem or enclosure. They contain no electronic components that can be serviced or replaced by a user. Any attempt at user service of the 326X enclosure, or opening of the 326X unit, voids the product warranty.

  • Page 24: Operating The Modem From The Front Panel

    Lightning Warning All Telenetics devices should be used in environments designed for computers and electronic equipment. In areas susceptible to lightning, take precautions to prevent damage to electronic equipment. Contact your telephone company, or an electronic accessories vendor, for information on lightning protection equipment.

  • Page 25: Selecting Programmed Option Sets

    PC keyboard. Using the AT-compatible command set (AT and AT&), you can, for example, dial and receive phone calls. Telenetics’ extended AT command set (AT important parameters used in configuring advanced modem features.

  • Page 26: Managing A Modem

    Refer to Chapter 3, Automatic Calling Interfaces, in the 326X Series Modem Reference Guide, for details. Managing a Modem Integral Network Management by Telenetics’ 9110, 9000-UX, and 9000-PC Network Management Systems (NMS) is standard. The NMS can configure, monitor, and control local and remote modem operation.

  • Page 27: Synchronous Data Compression (Sdc) Feature

    V.34 Modulation Mode Characteristics V.34 modulation mode characteristics are as follows. Data Rate: 2.4, 4.8, 7.2, 9.6, 12.0, 14.4, 16.8, 19.2, 21.6, 24.0, 26.4, 28.8, 31.2, and 33.6 kbps Baud Rate: 2400, 2743, 3000, 3200, and 3429. Some baud rates do not support all data rates.

  • Page 28: Remote Configuration

    Access Procedure for Modems (LAPM) for error correction. Depending on the scheme negotiated, the modem uses MNP Level 5 or V.42bis data compression. The SDC modem uses LAPM with Telenetics’ proprietary data compression technology. Security The modem provides access security at two levels: •...

  • Page 29: Adaptive Rate System

    Adaptive Rate System With the Adaptive Rate System enabled, the 326X Series Modem continuously optimizes its transmit speed within the V.34, V.32bis, V.32 (coded and uncoded), and V.22bis modulation modes. By constantly monitoring signal quality, the modem adapts to the optimum transmission rate allowed by line conditions, ensuring maximum throughput and efficiency.

  • Page 31: Installing The Modem

    Contents Introduction ... Unpacking the Modem ... Additional Equipment Required ... Choosing a Site ... Connecting the Modem ... Rear Panel Connectors ... Ferrite Cylinders ... Cabling the Modem ... Connecting the Modem to a Network Management System ... Turning on the Modem ... Automatic Self-Test ...

  • Page 32: Introduction

    Appendix C To order cables, refer to Appendix B; then contact your Telenetics sales representative or local distributor for ordering information. Appendix B NOTE: If you are installing a 326X Series Modem card, refer to the addendum, 326X Series Modem Cards, shipped with your modem’s backplane.

  • Page 33: Chapter 2, Installing The Modem

    Unpacking the Modem The modem is wrapped in reusable shock-absorbent packing material. Save the carton and packing material for later reuse. Telenetics supplies the items shown in Figure 2-1 with the modem. One Power Cord One User’s Guide Figure 2-1. Unpacking the Modem If the equipment is damaged, contact the shipper.

  • Page 34: Additional Equipment Required

    Additional Equipment Required Personal Computer with Communications In addition to the items supplied with the modem, you may need the following: • Communications Software Package Many modem applications are controlled by communications software that supports serial communications. When connecting a modem to a terminal, communications software is unnecessary.

  • Page 35: Connecting The Modem

    Refer to Appendix C for DIP switch function details. Appendix C • Network Control (NC) IN and OUT ports for connecting to Telenetics’ Network Management Systems (NMS) • A DTE port for connecting to a PC or DTE •...
  • Page 36 Ensure that the electrical interfaces of the equipment you connect to the modem are compatible. Incompatible interfaces may seriously damage the modem. Telenetics makes no guarantee of the equipment’s integrity if you do not ensure that compatible interfaces are used. If your DTE has a different interface, you will need an external converter cable.

  • Page 37: Ferrite Cylinders

    Ferrite Cylinders Ferrite cylinders or beads installed on cables filter out line disturbances. They are required on some 326X models in some countries, as described in this section. Caution Install cables with the ferrite end adjacent to the modem. The ferrite cylinder ensures that the unit operates in compliance with FCC RFI requirements.
  • Page 38 Installing a Ferrite Cylinder on an Audio or Network Management Cable Do the following for each cable: 1) Snugly wrap the cable twice completely around the cylinder (Figure 2-5). 2) Set the cable into the cylinder cutouts. 3) Ensure that 1 to 1-1⁄2 inches of the cable protrude from the cylinder (on the end you insert into the backplane connector).
  • Page 39 Installing a Ferrite Cylinder on a Power Cable Do the following for each power cable of a Modular Nest enclosure populated with 3267 and 3268 V.34 Modems . 1) Snugly wrap the cable once completely around the cylinder (Figure 2-6). 2) Set the cable into the cylinder cutouts.
  • Page 40 Important Information About the Modular Nest Enclosure Front Door Warning For safety, the enclosure front door should remain closed and locked at all times unless you are installing, removing, or configuring product cards. Avertissement Pour des raisons de sécurité, la porte d’entrée doit être toujours fermée et verrouillée, sauf lorsque vous installez, retirez ou configurez des cartes.

  • Page 41: Cabling The Modem

    Cabling the Modem This section explains how to connect the modem to: 1) A PC or DTE (asynchronous or synchronous terminal) 2) A dial telephone line 3) A telephone cable (between handset and modem) 4) A leased telephone line (if appropriate) 5) The power cord 6) Network management system cables (if appropriate) For models 3260/3265, connect modem cables in the order shown in Figure 2-7.
  • Page 42 Telephone Cable Dial/ Leased Line Dial/ Jack Leased Telephone Line Outlet Power Cord Figure 2-7. 3260/3265 Modem Cabling Step 1: Install ferrite cylinders as explained in this chapter. Telephone Cable Dial Step 2: Install an EIA/TIA 232-D cable between the modem's DTE connector and the DTE Line Jack Leased...

  • Page 43: Connecting The Modem To A Network Management System

    Connecting the Modem to a Network Management System 326X Series Modems can be connected to the following Telenetics systems: • 9110 NMS (Figure 2-9) • 9000-PC (Figure 2-10) • 9000-UX(Figure 2-10) Use the modem’s NC IN and NC OUT 8-pin DIN connectors for NMS connections.

  • Page 44: Turning On The Modem

    To connect multiple modems in a daisy chain configuration, refer to Figure 2-11. 326X Series Modem 326X Series Modem 326X Series Modem Figure 2-11. Connecting Modems in a Daisy Chain Configuration To attach modem enclosure cards to an NMS, refer to the addendum, 326X Series Modem Cards, shipped with the modem backplane.

  • Page 45: Automatic Self-Test

    Some line problems do not affect modem operation. If the modem continues to display an error message, contact Telenetics Customer Support or an authorized Telenetics distributor. After Installing the Modem... Go on to Chapter 3, Getting Started, for information on how to configure and operate the modem.

  • Page 47: Chapter 3, Getting Started

    Contents Introduction ... System Requirements for Software Upgrades ... Configuring and Operating the Modem ... Using the Front Panel ... Navigating the Configuration Menu Tree ... Setting Configuration Options from the Front Panel ... Using the Modem with a Network Management System (NMS) ... Using the AT Automatic Calling Unit (ACU) ...

  • Page 48: Introduction

    Introduction This chapter has three parts: • System Requirements for Software Upgrades • Configuring and Operating the Modem • Other Call Establishment Methods System Requirements for Software Upgrades This section explains the prerequisites for an upgrade to 7.9 software. This section does not apply to new units with 7.8 or higher software installed.
  • Page 49 IMPORTANT: To use the front panel keys, the modem must be connected to an AC power source, the rear panel power switch must be turned on, and rear panel DIP Switches #3 and #6 must be set to the Off (up) position. See Chapter 2 for details. Six front-panel LEDs indicate status Figure 3-1.

  • Page 50: Front Panel Display

    Table 3-1. 326X LEDs RC/NC Front Panel Display The front panel has a 16-character alphanumeric LCD display (see Figure 3-2 or 3-3). You access the configuration menu tree through this display, to: • Configure the modem • Store and view telephone numbers •...

  • Page 51: Navigating The Configuration Menu Tree

    Navigating the Configuration Menu Tree This section describes the modem menu tree structure. It explains how to access parameters using the front panel control keys. Menu Structure The menu structure consists of fifteen categories, which appear in capital letters. Example: CONFIGURATION OPT’S. Each category has parameters (example: Mode).

  • Page 52: Status Displays

    Table 3-2. Front Panel Keys Keys Down Enter NOTES: 1) If you hold the 2) With the 3262/3267 Modems, to toggle between modem A and modem B front panels, hold Example: Accessing a Configuration Option DATA 9600 T/D? To select a predefined configuration option set: Select Options 1) From the Data 9600 T/D? display, press 2) Press...

  • Page 53: Using The Modem With A Network Management System (Nms)

    Operating Status Displays The DTE19.2 RELIABL and Phase Jitter subcategories let you view modem operating status. Example: in the DTE 19.2 RELIABL subcategory, pressing displays: • Operating status messages • DTE/DCE rate/status • Error correction/data compression status • EIA/TIA signal status •...

  • Page 54: Using The At Automatic Calling Unit (Acu)

    The AT ACU is compatible with: • The industry-standard AT command set (AT and AT& commands) • The Telenetics enhanced AT command set (AT AT commands define how the modem is configured, how it makes calls, and what test operations it performs. The AT command set lets you configure and operate modem options and features from the PC or asynchronous terminal keyboard.

  • Page 55: Using The Modem With A Pc And Async Communications Software

    Communications software packages that directly support the modem (where Telenetics 3260 Modem, Codex 3260 Modem, or Motorola 3260 Modem is a selection within the package) support the industry standard commands (AT, AT&) and the Telenetics-enhanced commands (AT command syntax unnecessary.

  • Page 56: Other Call Establishment Methods

    Other Call Establishment Methods In addition to the configuration and operation methods in this chapter, the modem supports other methods to establish and manage telephone connections: • V.25bis ACU (for synchronous or asynchronous applications) • NetView LPDA-2 ACU (for synchronous applications) •...

  • Page 57: Sync Dialing From An Ibm As 400

    Sync Dialing from an IBM AS 400 The modem can be configured to operate as a synchronous originate modem with the IBM AS 400. The AS 400 supports switched operation with call origination via a V.25bis-compliant call establishment driver. In this type of application, the modem is driven by the APPC/APPN bit-synchronous protocol.
  • Page 59 Contents Overview ... Communications Software Package Operating Notes ... Configuring the Modem for Use with Communications Software ... Operating Notes ... If the Communications Software and Modem Do Not Operate..Preparing for Operation ... Reinitializing Memory from the Front Panel ... Reinitializing Memory Using the AT&F Command ...

  • Page 60: Overview

    Overview This chapter explains how to configure the modem, in conjunction with Chapter 3, Getting Started. Read Chapter 3 before continuing. Then select an option: • If the application requires a communications software package, read the section, “Communications Software Package Operating Notes”. •...

  • Page 61: Operating Notes

    What to Select in the Communications Software Package’s Modem Menu List 1) Select Telenetics 3260 Modem, Codex 3260 Modem, Motorola 3260 Modem, or another 3260 option from the package’s modem list. Packages that directly support the 326X Series Modem support industry-standard commands and Telenetics-enhanced commands, making further configuration unneces- sary.
  • Page 62 Direct Operating Mode If you select Mode=Direct (EC/DC OPT’S category): • Speed conversion and flow control are not supported. If the communications package does not support speed detect, change the 326X’s modulation mode to Auto V.32, and after a connection is established, change the communications software rate to match the modem’s connection rate.

  • Page 63: If The Communications Software And Modem Do Not Operate

    326XFAST V.34 and 326XFAST-SDC Notes The information in this section applies when operating at the higher DTE rates available with the 326XFAST V.34 and 326XFAST-SDC Series Modems. • If the communications software package supports the higher terminal rates available with these modems, and you want to use the package’s auto dial or auto answer features, set the modem’s DTE Rate (TERMINAL OPT’S category) to that of the package.

  • Page 64: Configuration Option Sets

    Configuration Option Sets This section discusses the modem’s preconfigured option sets, in three parts: • What is an Option Set? • How to Configure an Option Set • Option Set Defaults—326X V.32bis, 326XFAST V.34, and 326XFAST-SDC What is an Option Set? Option sets are complete configurations, each tailored for an application and stored in memory.
  • Page 65 When you first install the modem, it is set to power up with Option Set 1 as the factory default. The modem recognizes the standard AT Command Set and the Telenetics-enhanced AT Command set. To satisfy common asynchronous communications software packages, Option Set 1 holds several EIA 232-D (ITU V.24) control signals asserted (see Tables 4-1 and...
  • Page 66 (see Table 4-2). With this option set, the Clock is set to External as network timing is provided by the DSU/CSU. NOTE: With this option set, (for Telenetics and Motorola DSU/CSUs as well as non-Telenetics and non-Motorola DSU/CSUs), the DSU’s restoral configura- tion should be set to Timing=Internal.
  • Page 67 With this option set, the local and remote modems are configured for SDC operation. The modems default to Fast Call=Lvl3, and use LAPM error correction with modified V.42bis data compression. Enable Option Set 2 in both the local and remote modems, and ensure that Mode (AT The modem uses the adaptive rate feature in the V.34 Auto modulation mode.

  • Page 68: Configuring An Option Set

    In this option set, the local and remote modems are configured for SDC operation. The modems default to Fast Call=Lvl3, and use LAPM error correction with modified V.42bis data compression. Enable Option Set 4 in both the local and remote modems, and ensure that Mode (AT Refer to “326X V.32bis and 326XFAST Modem Application Examples”...

  • Page 69: Option Set Defaults

    6) Do not turn off modem power until SAVE COMPLETED! appears. Option Set Defaults Table 4-3 summarizes option set defaults for 326X V.32bis and 326X V.34 modems. Table 4-4 summarizes option set parameter defaults for 326X V.34-SDC modems. Table 4-3.
  • Page 70 Table 4-3. Option Set Defaults—326X V.32bis and 326X V.34 Modems (Continued) Parameter Option Set 1 RESTORAL OPT’S (modems without the restoral function display only the HOLD DIALINE option) Restore L to D Low/Fast D to L Manual Hold Dialine Ans Rest LL Fail EC/DC OPT’S...
  • Page 71 Table 4-3. Option Set Defaults—326X V.32bis and 326X V.34 Modems (Continued) Parameter Option Set 1 TERMINAL OPT’S DTE Rate* Auto Flow XON/XOFF Speed Conver High High AsynSync RTS/CTS Delay High RemRST/DCD Codex DCD Loss Dis High Overspeed DTR Delay DTE Ct 140...
  • Page 72 Table 4-4. Option Set Defaults—326X-SDC V.34 Modem Option Option Set 1 MOD OPT’S Line Dial V.34 Auto Auto Type CCITT Low Speed Country-specific Max Rate 33.6 Min Rate V.34 Asym Fast Call Adaptive Rate Mode Originate Clock Internal Retrain High BER Longspace PSTN Guard Tone...
  • Page 73 Table 4-4. Option Set Defaults—326X-SDC V.34 Modem (Continued) Option Option Set 1 Answer Country-specific Async Echo Char Length V25 Char ASCII Sync Idle Char V25 Resp V25bis Parity V.25bis AT Msg Before CD Rslt Code Enable ResltForm Verbose Con Msg DTE Rate Rel Msg LPDA2 Addr...

  • Page 74: 326X V.32Bis And 326Xfast Modem Application Examples

    326X V.32bis and 326XFAST Modem Application Examples This section provides application examples for each option set, and notes options you may need to change from factory default settings for each option set. For This Type of Application... The modem connected to a remote terminal dialing into an asynchronous host computer (VAX, for example) The modem connected to a remote PC dialing into a LAN (remote node and remote control application)

  • Page 75: Option Set 1-Async Calls To Central Site Using At Acu

    Option Set 1—Async Calls to Central Site Using AT ACU Changing Default Configuration Settings Depending on application requirements, you may need to change the following: • Buffer Delay (AT DB, EC/DC OPTS category), when enabled, allows buffered data in the communications link to be effectively transmitted to the other modem before the modems disconnect.

  • Page 76: Option Set 2-Sync Answering Central Site Without Acu

    Option Set 2—Sync Answering Central Site Without ACU Changing Default Configuration Settings Depending on application requirements, you may need to change the following: • In Option Set 2, the default for network timing is Clock=Internal (AT&X, MODULATION OPTS category). It may be necessary to change the timing to external or loopback, depending on the network clocking source.

  • Page 77: Option Set 4-Async Answering Central Site Without Acu (Models 3260/62/65/67)

    Synchronous Dialing from an IBM AS 400 The modem operates as a synchronous originate modem with the IBM AS 400. Set the modem to Option Set 3—no reconfiguration from this Option Set is necessary. The AS 400 supports switched operation with call origination via a V.25bis compliant call establishment driver.Using Option Set 3 allows it to be driven by APPC/APPN, the bit-synchronous protocol supported by the IBM AS 400.

  • Page 78: Option Set 4-Synchronous Leased Line Applications With Dial Restoral (Models 3261/63/66/68)

    Option Set 4—Synchronous Leased Line Applications with Dial Restoral (Models 3261/63/66/68) Changing Default Configuration Settings Depending on application requirements, you may change the following options: • The default Restoral setting in Option Set 4 (leased line models) is Auto/FP. When first configuring the modem, set Restoral=Off. This prevents erroneous status errors from displaying while you configure leased line options.

  • Page 79: 326Xfast-Sdc Modem Application Examples

    (Refer to Chapter 1 of the326X Series Modem Reference Guide for a description of how to use the RX/TX Throughput and Link Utilization displays.) Telenetics recommends the following to maximize efficiency: • If your application is operating in a windowed protocol environment, set the window sizes to greater than 1 to improve performance.

  • Page 80: Configuring The Modem For Sdc Operation

    For DTEs that cannot handle Rx/Tx clock stoppage without disrupting data, select a different option. In this situation, Telenetics recommends that the default values not be used. SDC Sample Applications SDC Option Set 1—Async Calls to Central Site Using AT ACU SDC Option Set 1 functions the same as described above for non-SDC modems.
  • Page 81 When used as a restoral device for Telenetics and Motorola 35XX DSU/CSUs (Figure 4-1), select SDC Option Set 2 in the local and remote SDC Modems. This places the modems in external timing, as digital services typically provide the network timing.
  • Page 82 Figure 4-2 shows a configuration using an external A/B switch. Network configuration (SDC Option Set 2) and operation is the same as with an internal switch. To 56 kbps Router Figure 4-2. Single Channel Point-to-Point Digital Link Restoral (A/B Switch)—Option Set 2 4-24 Configuring the Modem To 33.6 kbps PSTN...
  • Page 83 SDC Option Set 3—Sync Dial Only In a typical dial application, a remote terminal dials the host for file transfers. This allows remote users to dial in as needed, with a higher throughput than formerly attainable over the PSTN. Alternately, the DTE and host (Figure 4-3) could be nodal equipment (e.g., X.25 PADs, routers, bridges).
  • Page 84 SDC modem, you can ensure full network availability and performance at low dial- up line costs, without having to prioritize users or applications. Figure 4-4 shows a point-to-point digital link with Telenetics 35XX DSU/CSUs connecting two routers over a DDS circuit. The SDC modems are also connected directly to the routers.
  • Page 85 Point-to-Point Leased Line Application with Dial Restoral Figure 4-5 shows a typical point-to-point leased line application, with SDC modems providing leased line and dial back-up for a bridge/router network. A Telenetics Network Management System (NMS) is shown. This application could apply to any nodal equipment connections (e.g., bridges, routers, or X.25 PADs).

  • Page 86: Remote Access Reset

    Remote Access Reset Remote access reset enables someone unfamiliar with the AT command set to quickly configure a local modem so that another modem can dial into it. Then you can use the remote modem to configure local modem options. Remote access reset configures the modem to: •...
  • Page 87 Using the AT Automatic Calling Interface Contents Introduction ... What is the Attention (AT) Command Set? ... What Role Does Communications Software Play? ... Using AT Commands ... Entering AT Command Lines ... Autobaud Feature ... The Escape Sequence—(+++) ... Non-Configuration AT Commands ...

  • Page 88: Introduction

    In addition to supporting industry standard AT commands, Telenetics has developed an enhanced AT command set for the modem. • Industry-Standard AT Command Set—AT and AT&...

  • Page 89: What Is The Attention (At) Command Set

    Communications software packages that directly support the 326X Series Modem usually support all of the modem’s AT commands (the industry standard commands AT, AT&, and the Telenetics-enhanced commands AT Communications software packages that support a Hayes-compatible selection do not support the Telenetics-enhanced commands (AT commands yourself to modify option settings if required by your application.

  • Page 90: To Enter Multiple At Commands On A Single Command Line

    To enter multiple AT commands on a single command line: Multiple AT commands can be entered on a command line using a single AT prefix. The modem accepts up to 60 characters after the prefix. Spaces are not counted in the length.

  • Page 91: Autobaud Feature

    Autobaud Feature The modem automatically detects the speed and character format of the following AT commands issued from your DTE: • AT • at • A/ • a/ This means that any AT command you issue to the modem will cause the modem to “Autobaud.”...

  • Page 92: To Use The Escape Sequence With Guard Time

    The escape state is entered by sending the escape character three consecutive times. The escape character is selectable as any ASCII character. Its value is stored in S-Register 2, and the default is “+” (decimal 43). To disable escape command detection, set S-Register 2 to a value greater than 127.

  • Page 93: A/, Re-Execute Last Command

    This section addresses AT commands that do not cross-reference to a front panel option. A/, Re-Execute Last Command Settings: Not applicable Format: This command re-executes the last AT command string issued to the modem, including redialing a telephone number. To re-execute the last command, enter A/ but do not follow this command with <CR>.

  • Page 94: Ati, Display Software Information

    If ATD is issued while the modem is in escape mode or remote configuration, the modem responds with: ERROR NOTE: Any invalid characters inserted into the dial string will be ignored. ATH, Hang Up Settings: Format: You may hang up the modem after entering the online escape mode by typing ATH or ATH0.

  • Page 95: At * Rd, Redial Last Number

    RD, Redial Last Number Settings: 0, 1 Redial last number one time. n (The maximum number of redials allowed is country-specific. See the 326X Series Modem Country-Specific Guide for more details). Format: RDn<CR> You may redial a failed call n times using the AT redials a call until a successful connection is made, or until the call has been attempted n times.

  • Page 96: S-Register Descriptions

    Display S-Register Value (AT?) Settings: Format: This command displays the contents of the “selected” S-Register, as stored in volatile memory. The “selected” S-Register is the last S-Register that was accessed using an S-Register command or the ATSn command. The number must be within the S-Register’s specified range.
  • Page 97 S-Register 1—Ring Count Stored in Nonvolatile Memory?: Status-Only?: Default Setting: Range: 0 to 255 This S-Register counts the number of rings in an incoming telephone call. If the modem is configured to answer (AT value equals S-Register 0’s value, the modem answers the call. If no ring is received after a country-specific time (eight to 10 seconds), the counter is reset to 0.
  • Page 98 S-Register 5—Backspace Character Stored in Nonvolatile Memory?: Status-Only?: Default Setting: Range: This S-Register determines the decimal value of the backspace character. The default setting, 08, translates to the ASCII <BS> (backspace) character. Values greater than 32 (except 127) disable the backspace function. S-Register 6—Wait for Dial Tone Stored in Nonvolatile Memory?: Status-Only?:...
  • Page 99 S-Register 8—Pause Time for Pause Delay Dial Modifiers Stored in Nonvolatile Memory?: Status-Only?: Default Setting: Range: 0 to 255 (seconds) This S-Register determines how many seconds the modem pauses while dialing when it encounters a K, k, “,”, or < dial modifier. Pause Delay (AT to S8 (AT DP4) to use S-Register 8’s setting.
  • Page 100 S-Register 11—DTMF Tone Duration Stored in Nonvolatile Memory?: Status-Only?: Default Setting: Range: S-Register 11 defines the duration/spacing of tones (in milliseconds) in Dual Tone Multifrequency (DTMF) dialing. This register has no meaning unless the Tone Length option under the DIALING OPT’S is set to S11. Refer to Appendix C, Country-Specific Information, for the ranges supported by each country.
  • Page 101 S-Register 25—Delay Before Looking for DTR Stored in Nonvolatile Memory?: Status-Only?: Default: Range: 0 to 255 (seconds) When DTR Delay=S25 (AT DT), and AT Form=Sync Data (AT&M) or V25 Form=AsynSync, the modem goes into synchronous data mode after the modem dials asynchronously.
  • Page 102 S-Register 38—Disconnect Buffer Delay Stored in Nonvolatile Memory?: Status-Only?: Default: Range: S-Register 38 determines how long the modem processes buffered data when a disconnect is initiated. For S-Register 38 to affect the Delay option (AT Delay (EC OPT’S menu) must be set to “Buf or S38” or “Buf & S38.” S-Register 45—Access Security Tone Duration Stored in Nonvolatile Memory?: Status-Only?:...
  • Page 103 S-Register 97—Break Signal Duration Stored in Nonvolatile Memory?: Status-Only?: Default: 0 (represents 1 second) Range: 0 - 39 S-Register 97 Value Break Signal Duration (ms.) 1000 (1 second) 1000 Using the AT Automatic Calling Interface 5-17...
  • Page 104 This S-Register extends part of the V.32 modulation mode training time. It provides a workaround to an inability of Rockwell-based modems to establish a connection. Telenetics recommends that with Rockwell-based modems, you set S-99 to 120. 5-18 Using the AT Automatic Calling Interface...

  • Page 105: Synchronous Data Compression (Sdc) Testing

    Contents Introduction ... Troubleshooting ... 326X Series Modem Diagnostic Tests ... Synchronous Data Compression (SDC) Testing ... Chapter 6 Troubleshooting Guide 6-10 6-11 Troubleshooting Guide 6-1...

  • Page 106: Troubleshooting Steps

    Use the Troubleshooting section of this chapter to analyze and correct problems before calling Telenetics’ Customer Support Center or your local distributor. The section after the troubleshooting guide tells you how to initiate and terminate tests.
  • Page 107 (LAL) test. (Refer to the end of this chapter for details on tests supported, as well as instructions for initiating tests.) • If LAL fails, contact Telenetics Customer Support or your local distributor. If both echo settings are on, turn one off. (In some data terminals, echo is sometimes referred to as half- or full- duplex.) If this does not solve the problem, contact Tele-...
  • Page 108 326X Series Modem Troubleshooting Guide (Continued) Problem Diagnosis/Test Check the modem's line setting (AT&L). Check that the TR LED on modem's front panel is steady Check that the RI/OH LED is on when ring is present on the line. Check that the communications package’s data rate is set to a rate that the modem’s autobaud feature supports.
  • Page 109 326X Series Modem Troubleshooting Guide (Continued) Problem Diagnosis/Test Cannot hear connection Check Speaker (ATM) option. through the speaker (stand-alone units) Check Volume (ATL) option. DATA MODE The modem connects, Check that the modem is in data but cannot pass data mode (“Data 9600”, for example, displays).
  • Page 110 326X Series Modem Troubleshooting Guide (Continued) Problem Diagnosis/Test Data is garbled or lost Check the modem’s flow control settings. Check that the modem’s DTE rate, parity, and character length match the DTE’s settings. If in normal mode, check line quality: •...
  • Page 111 326X Series Modem Troubleshooting Guide (Continued) Problem Diagnosis/Test CALL TERMINATION Modem takes too long to Check to see if remote modem disconnect supports PSTN cleardown. Modem doesn't Check modem’s DTR option for disconnect when DTR correct setting. drops, or Modem doesn’t disconnect when communications software package does...
  • Page 112 326X Series Modem Troubleshooting Guide (Continued) Problem Diagnosis/Test Check whether modem is set for Flow=Tx Clk (AT Check if TpDlyMin=Rx Clk TD1). If both modems are 326X-SDC, check to ensure option sets are the same in both modems. Check if one of your modems (local or remote) is a 326X-SDC unit.
  • Page 113 Appendix C. • Confirm the Tx and Rx connections for your leased line jack. • If errors are found on either end, contact Telenetics Customer Support or your local distributor. • If the LAL pattern test passes, you may have line problems;...

  • Page 114: Series Modem Diagnostic Tests

    326X Series Modem Diagnostic Tests The modem supports loopback, busy out, and retrain tests to assist you in isolating network problems. These tests analyze the telephone line and the local and remote modem’s performance. These tests can be initiated from the modem’s front panel, using AT commands from an attached PC or terminal, or from a network management system.

  • Page 115: Synchronous Data Compression (Sdc) Testing

    Initiating and Terminating Tests from the Modem’s Front Panel To initiate a test from the modem’s front panel: 1) Press until you reach the TEST OPTS category. 2) Press until you reach Test=End Test. 3) Press until Test=LAL (for example) 4) Press to start the test.

  • Page 117: Configuration Quick-Reference—Menu Trees

    Contents Configuration Quick-Reference—Menu Trees ... For More Detail ... Audience and Assumptions ... Performing Numeric Entry ... S-Register/AT Command Cross-Reference ... Dial Modifiers for Special Dialing Requirements ... Result Codes ... Configuring the Modem’s Dual In-line Package (DIP) Switches ... Appendix A Configuration Quick Reference Configuration Quick Reference A-1...
  • Page 118 For More Detail For more information on configuration, order the 326X Series Modem Reference Guide by contacting your Telenetics sales representative or local distributor. Audience and Assumptions This chapter assumes you understand AT command syntax and use. (To review, refer to Chapter 5, Using the AT Automatic Calling Interface.)
  • Page 119 AT&V DTE (Rate) EC Mode Rx = nnnn Data (DCE Rate) T/D? EC=(Mode)DC=(Mode) Tx = mmmm Pressing at this display toggles modem between talk/data states DCD RTS CTS DSR DTR AOP DLP ALP DR=0 TI=0 O D Display Modem ID (s/w rev lvl) TEST OPT'S AT&L...
  • Page 120 EC/DC OPT'S Mode=Direct (2,3,4L) Buffers=Regular (A) :Normal :Reduced :Reliable :Auto Rel (1,4d) (2,3,4L SDC) :Spd AutoRel AT&M ACU OPT'S AT Form=Async (A) ACU Select=AT (1) :SyncData :V25b (3) :DTR Dial :LPDA2 :None (2,4) :Man Dial Sync Idle=Mark V25 Resp=V25bis :Char (A) :V25rate :VALOnly :None...
  • Page 121 DTE Rate=Auto (1) Flow=Off TERMINAL OPT'S :XON/XOFF (A) :128.0† :DTR/CTS 115.2† :RTS/CTS :96.0† :76.8† :XON/XOFF PT :Tx Clk (2,3,4L SDC) :72.0† :64.0† (2,3,4L SDC) :57.6 :56.0† (2,3,4L SDC) (U.S.A/Can. only) :48.0† :38.4 Rts/Cts Delay=0 (A) :28.8† :26.4† :24.0† (2,3,4L,F) :21.6† :19.2 (4d) :16.8 :14.4 (2,3,4L,S)
  • Page 122 AT&J TELCO OPT'S Telco=RJ11C DL TX Level=0 :RJ45S :RJ16C :RJ4MB DIALING OPT'S Pause Delay=3 Dial Wait=2 Password=Disable (D) FP SECURITY Enter Password? ACCESS SECURITY PW Verify = Dis (D) Callback=Off (D) :Intern :Mngr NETWK CNTL OPT'S OverrideMode=Off (D) NC Address=000 Init Rmt Cnfg? RmtAcc=Enable (D) RMT CONFIG OPT'S...
  • Page 123 Table A-1. AT Commands, Cross-Referenced to Front Panel Optio n s Parameter & Command Option Description — Escape Data Mode Enter command mode (does not require AT prefix or <CR>. The character is determined by the content of S-Register 2. —...
  • Page 124 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description ATIn — Display Software Information (n= 0, 1, 2, 9) 0=displays 960 1=displays 000 2=displays OK 9=displays reason for last disconnect These messages are sent with OK, when AT command processing is complete. Volume Speaker Volume ATL0/ATL1...
  • Page 125 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description ATX2 The modem waits for dial tone and uses only NO CARRIER, CONNECT, CONNECT <Rate> and NO DIALTONE result codes. ATX3 The modem detects busy signal and uses NO CARRIER, CONNECT, CONNECT <Rate>, and BUSY result codes.
  • Page 126 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description AT&D2 =Discon The modem hangs up and enters command mode when an on-to-off DTR transition is detected, while the modem is in data, test, or escape mode. If DTR is low, the modem does not auto answer.
  • Page 127 NOTE: When installing the modem in a PBX environment, the interface to the PBX should be a voice grade jack (RJ11). Although an RJ11 jack is installed, Telenetics recommends that Telco=RJ45S. This optimizes modem performance the when operating at high data rates over a PBX.
  • Page 128 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description CTS Control Determines how the modem sets the CTS signal. The modem signals the DTE with CTS on EIA/TIA 232-D Pin 5 (V.24 Circuit 106). The CTS Signal discussed here is the state of the CTS signal after the setting of the modem’s RTS option has been followed.
  • Page 129 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description AT&W2 Save changes to Option Set 2. AT&W3 Save changes to Option Set 3. AT&W4 Save changes to Option Set 4. Clock Clock Sets modem timing and applies to synchronous applications only. For most dial applications, use internal timing.
  • Page 130 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description The modem monitors telephone line signal quality and negotiates the highest possible rate for a modem’s modulation mode. You must enable Retrain (AT Close rear panel switch 1 down so that the modem can inform the terminal of rate changes See “Configuring the Modem’s Dual In-line Package (DIP) Switches”...
  • Page 131 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =Always A dial call is always answered. As soon as the dial call is answered, the leased line connection is dropped (with auto-answering, the leased line is dropped after the correct number of rings). If training on the dial line fails, the modem returns to the leased line.
  • Page 132 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description Con Msg Connect Message =DTE Rate Selecting DTE Rate results in the current DTE rate being displayed on your terminal after the connect message. =DCE Rate Selecting DCE Rate results in the current DCE rate being displayed on your terminal after the connect message.
  • Page 133 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =S38 This setting allows the timer to start immediately upon detection of a disconnect request. The request continues to process either its transmit or receive buffers. The modem disconnects when the timer expires, regardless of the buffer states.
  • Page 134 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description DE23 =48.0 The DTE port is configured for 48,000 bps. Available with SDC feature only. DE24 =56.0 The DTE port is configured for 56,000 bps. Available with SDC feature only. DE16 =57.6 The DTE port is configured for 57,600 bps.
  • Page 135 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description 60-ms delay before the modem sends CTS to the DTE after receiving RTS from the DTE. 90-ms delay before the modem sends CTS to the DTE after receiving RTS from the DTE. =S26 RTS/CTS delay is determined by the value of S-Register 26.
  • Page 136 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =Lvl2 Lvl2 applies to V.32 (coded or uncoded)/V.32bis modulation modes only. It includes the Lvl1 function and shortens training time by approximately 2 seconds. =Lvl3 Lvl3 includes the Lvl1 and Lvl2 function and eliminates error-correction negotiation, saving approximately an additional half second.
  • Page 137 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =TxClk Transmit Clock. This option applies only in SDC mode. When the Tx Clk flow control option is selected, the modem uses a transmit clock for flow control based on available buffer space. The transmit clock is stopped when the buffers are full, inhibiting the flow of data from the DTE.
  • Page 138 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =15 min The modem returns to the leased line after 15 minutes. =30 min The modem returns to the leased line after 30 minutes. =1 Hr The modem returns to the leased line after 1 hour.
  • Page 139 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description Your modem signals the remote modem to disconnect by sending a PSTN cleardown. Modem Flow Modem Flow Control Lets the modem generate and respond to XON/XOFF flow control signals received at the DIAL LINE or LEASED LINE port.
  • Page 140 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =9600 =12.0 =14.4 =16.8 (V.34 modems only) =19.2 (V.34 modems only) MN10 =21.6 (V.34 modems only) MN11 =24.0 (V.34 modems only) MN12 =26.4 (V.34 modems only) MN13 =28.8 (V.34 modems only)
  • Page 141 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description MX13 =28.8 (V.34 modems only) MX14 =31.2 (V.34 modems only) MX15 =33.6 (V.34 modems only) (default) Buffers Buffer Option Lets you specify whether normal or reduced size buffers store data received from a local DTE. Use this parameter if you have DTE-to-DTE flow control enabled, to reduce the amount of data sent to the remote DTE when a flow-off condition is received at the local DTE.
  • Page 142 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =2H/1L =2H/3L =2H/4L =3H/1L =3H/2L =3H/4L OP10 =4H/1L OP11 =4H/2L OP12 =4H/3L Overspeed Overspeed Lets modem compensate when an async DTE sends data to the modem faster than specified . The modem compensates for DTE overspeed up to 1.0%.
  • Page 143 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =Auto The auto-call unit attempts to tone dial when initiating a call. If tone dialing is not possible, pulse dialing is used. For this feature to work correctly, the first character in a dial string must be a digit . A T or P in the dial string overrides this setting, for that dial string.
  • Page 144 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =FP/108.ACU With this option, off-to-on transitions of this signal from the DTE activate the ACU. This lets the modem accept dial commands. With this option, either modem can enable the ACU when the connected DTE turns Circuit 116 from off to on.
  • Page 145 Description =High BER The High BER setting is less sensitive than the Low BER setting. NOTE: Telenetics recom- mends this setting for most applications. Using V.34, V.32bis, V.32, or V.32 Uncoded, the modem retrains when the bit error rate (BER) exceeds approximately 10 -3 for eight seconds.
  • Page 146 RTS/DCD Remote Signaling This command allows for two types of PN signaling. It is valid when RTS or DCD=Remote. = Codex The Codex setting lets you configure the modem for Telenetics- or Motorola-proprietary signaling. = V.13 This setting allows ITU V.13-compliant signaling for synchronous applications only.
  • Page 147 If the rate of data transmission slows, the clock stops, temporarily ceasing the flow of data. Telenetics recommends that the Rx Clock setting be used in most applications. NOTE: This setting is operational only when Clock=Internal (AT&X).
  • Page 148 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description Callback Callback Feature Determines the source of the telephone number that your modem calls when it receives a valid access security password from the remote modem. NOTE: For details on access security and call features, see Chapter 2 of the 326X Series Modem Reference Guide.
  • Page 149 Table A-1. AT Commands, Cross-Referenced to Front Panel Options (Continued) Parameter & Command Option Description =Ack Only After validating the password, the modem generates an acknowledgment tone before hanging up. This indicates to the caller that the access security password is valid and that the modem should expect to receive a callback.
  • Page 150 Table A-2. Front Panel Configuration Options Parameter & 326X Menu Option Description ACU OPT’S ACU Select Determines which Auto-Call Unit (ACU) the modem uses. To enable SDC: select an ACU (ACU Select), a bit-synchronous data format (for the AT and V.25bis ACUs), and Mode=Reliable, Auto Reliable, or Speed Auto Reliable (AT The AT auto-call unit is used.
  • Page 151 Table A-2. Front Panel Configuration Options (Continued) Parameter & 326X Menu Option Description Sync Idle Applies to synchronous applications only (direct synchronous or SDC operating modes). Your modem sends Marks or Characters on EIA/TIA 232-D Pin 3 (V.24 Circuit 104) to the DTE when it has no messages to send.

  • Page 152: Performing Numeric Entry

    Table A-2. Front Panel Configuration Options (Continued) Parameter & 326X Menu Option Description ACCESS Group PW Determines if the modem can verify a received password when PW Verify=Mngr (AT SECURITY the network management system is unable to perform the verification. This option is not accessible from the front panel or the AT ACU.
  • Page 153 Performing Numeric Entry The following options require you to enter information using the front panel or ACU. Front Panel Option Enter Phone #=n Enter Then Dial S-Reg xxx=nnn LPDA-2 Addr=nnn Enter PW:nnnn Old PW:nnnn New PW:nnnn Verify PW:nnnn Enter Group PW: NC Address:nnn New Address:nnn Rmt Ser:nnnnnnn...

  • Page 154: S-Register/At Command Cross-Reference

    S-Register/AT Command Cross-Reference This section shows the modem’s S-Registers cross-referenced with AT Commands and front panel options. (For details on S-Registers, refer to Chapter 5, Using the AT Automatic Calling Interface.) Table A-3. S-Register Cross-Reference S-Register S0—Ring Count to Answer On S1—Ring Count S2—Escape Code Character S3—Carriage Return Character...

  • Page 155: Dial Modifiers For Special Dialing Requirements

    Dial Modifiers for Special Dialing Requirements When entering telephone numbers into modem memory or dialing directly from the modem’s front panel, you can add dial modifiers to telephone numbers. Tabl eA-4 lists the dial modifiers used in AT ACU applications. Table A-4.
  • Page 156 Table A-4. Dial Modifiers (Continued) Modifier Function Description (space) . (period) - (dash) ( ) paren- theses A-40 Configuration Quick Reference Quiet Makes the modem look for one or more ringbacks (followed by Answer five seconds of silence) within the delay time specified by Call Timeout.

  • Page 157: Result Codes

    Result Codes Result codes are responses sent to the terminal by the AT ACU. Result codes may be sent in word form (RsltForm=Verbose or ATV1), numeric form (RsltForm=Numeric or ATV0), or disabled (RsltCode=Disable or ATQ1). When numeric form is selected, the modem issues only a number code.
  • Page 158 Table A-5. Result Codes (Continued) Word Form Response CONNECT 24000 CONNECT 26400 CONNECT 28800 CONNECT 31200 CONNECT 33600 CONNECT 38400 CONNECT 48000 CONNECT 56000 CONNECT 57600 CONNECT 64000 CONNECT 72000 CONNECT 76800 CONNECT 96000 CONNECT 115200 CONNECT 128000 CONNECT RELIABLE CONNECT 600 RELIABLE CONNECT 1200 RELIABLE CONNECT 2400 RELIABLE...
  • Page 159 Table A-5. Result Codes (Continued) Word Form Response CONNECT 2400 RELIABLE EC=(xxx) DC=(yyy) CONNECT 4800 RELIABLE EC=(xxx) DC=(yyy) CONNECT 7200 RELIABLE EC=(xxx) DC=(yyy) CONNECT 9600 RELIABLE EC=(xxx) DC=(yyy) CONNECT 12000 RELIABLE EC=(xxx) DC=(yyy) CONNECT 14400 RELIABLE EC=(xxx) DC=(yyy) CONNECT 16800 RELIABLE EC=(xxx) DC=(yyy) CONNECT 19200 RELIABLE EC=(xxx) DC=(yyy) CONNECT 21600 RELIABLE EC=(xxx) DC=(yyy) CONNECT 24000 RELIABLE EC=(xxx) DC=(yyy)

  • Page 160: Configuring The Modem's Dual In-Line Package (Dip) Switches

    Configuring the Modem’s Dual In-line Package (DIP) Switches The standalone modem has a 6-position DIP switch that lets you “hard” configure certain aspects of the modem’s operation. The modem is shipped from the factory with all switches in the Off (up) position. DIP switch selections cannot be overridden using the remote front panel configuration.
  • Page 161 Table A-6. Rear Panel Switches (Continued) Switch Number Setting Function Off (up) Front panel enable. The front panel functions normally. On (down) Front panel disable. You can check only the status displays. NOTE: If the modem is under remote configuration control, the controlling modem retains full front-panel control.

  • Page 163: Cabling And Interface Pinouts

    Contents Introduction ... EIA/TIA 232-D (Modem to Computer) Interface ... ITU Recommendation V.35 Modem-to-Computer Interface ... ITU Rate V.35 Modem-to-Computer Interface Pinouts ... Differences, EIA/TIA 232-D and ITU Rate V.35 Interfaces ... DIAL LINE, LEASE (PRIVATE) LINE, PHONE Connector Pinouts ... NC (Network Control) Port Pinouts ...

  • Page 164: Introduction

    Introduction This appendix describes the following: • Interface pinouts common to all modem models, including: — EIA/TIA 232-D, and ITU V.35 Recommendation modem-to-computer — NC IN and OUT network control port interfaces • 326X/326X-SDC cabling requirements and diagnostics Audio connector (DIAL LINE, LEASE/PRIVATE LINE, and PHONE) pinouts vary by country.
  • Page 165 Table B-1. Modem/Computer Interface Connections (Continued) EIA/TIA 232-D ITU V.24 Signal Data Signal Rate Indicator — Signal Quality — — Ext Select Transmitter Signal Element Timing — Standby Indicator Receive Signal Element Timing — Local Analog Loopback Test — — —...

  • Page 166: Itu Recommendation V.35 Modem-To-Computer Interface

    V.35 interface, do not, under any circumstances, connect the modem to a non-V.35 device. I fyou make such a connection, you may seriously damage the modem. Telenetics makes no guarantee of the equipment’s integrity if you do not ensure that compatible interfaces are used.

  • Page 167: Itu Rate V.35 Modem-To-Computer Interface Pinouts

    ITU Rate V.35 Modem-to-Computer Interface Pinouts The modem’s digital interface conforms to ITU Rate V.35. The modem should be connected to a data terminal with a compatible digital interface (see Table B-1). Table B-2. ITU V.35 Modem/Computer Interface Connections Pin V.35 Signal Definition Frame Ground Frame (or protective) ground.

  • Page 168: Differences, Eia/Tia 232-D And Itu Rate V.35 Interfaces

    Table B-2. ITU V.35 Modem/Computer Interface Connections (Continued) Pin V.35 Signal Loop 2 Control Ring Indicator (RI) Passed from local modem to local terminal. On during ringing, External Transmit Clock (B) External Transmit Clock (A) Test Indicate (TI) Differences, EIA/TIA 232-D and ITU Rate V.35 Interfaces There are some differences in how your modem operates when using EIA/TIA 232-D and ITU Rate V.35 electrical interfaces.

  • Page 169: Nc (Network Control) Port Pinouts

    “In” signals use a DCE-type interface. This type of interface connects directly to the DTE-type interface provided by Telenetics’ Network Management Systems. “Out” signals use a DTE-type interface. This type of interface may connect to a Telenetics or Motorola network-managed product.
  • Page 170 Table B-4 shows a range of data rates and maximum allowable capacitances. The maximum capacitance is a total of the inter-conductor capacitance (between the conductors represented as Cc in Table B-4), and the capacitance between the shield and the conductor (represented as Cs in Table B-4). Table B-4.
  • Page 171 92159 92158 NOTE: Telenetics DB-25 Cables have a conductor capacitance of 11 pF/ft and a shield capacitance of 20 pF/ft for a total capacitance of 31 pF/ft. For example, operating at 19.2 kbps, a 50-ft length of cable multiplied by a total capacitance of 31 pF/ft yields a maximum allowable cable capacitance of 1550 pF, which is acceptable in accordance with Table B-4.

  • Page 172: Dte Cable Diagnostics

    Table B-6. Vendor Wire for 326X Conductor Part Capacitance Vendor Number (pF) Belden 9948 9671 8125 12.5 9937 8155 Manhattan M39026 M13201 M2414 M3431 12.5 M2434 Madison 25QF10BTI 14.6 25QF15BTI 12.4 NOTE: To determine cable length, add the conductor and shield capacitance specified above to determine the total wire capacitance.
  • Page 173 5) If the transmitted and received messages are different (i.e., character or framing errors), verify the cable length to the limit specified in Table B-4. Reduce the cable length or capacitance of the cable to the theoretical limit and retry the steps listed in this section. (If the same cable length is required, it is recommended that a low capacitance type cable be used.) If the modem is installed at a host site, perform the following steps: 1) Set the Mode option AT...
  • Page 175 Contents Introduction ... Country Support ... Installation Notes ... Restricted Features Summary ... Operating Notes ... Standalone Modem Rear Panel Views ... 3260 Dial Only Modem ... 3261 Modem Rear View (Leased Line, Dial Restoral) ... 3265 Dial Only Modem ... 3266 Modem (Leased Line with Dial Restoral) ...
  • Page 176 Contents (Continued) Installation of Telephone Socket ... Application for Installation of Telephone Socket ... U. S. A..FCC Registration ... FCC Regulations ... Dial Line Jack Types ... Rear Panel Pinouts ... Dial and Leased Line Transmit Levels ... Making Telephone-to-Modem Connections ...

  • Page 177: Introduction

    NOTE: References to the 326X Series Modem apply to 326X V.32bis, 326X, and 326X-SDC Series Modems, unless stated otherwise. Country Support Country approval is an ongoing process. I fyou have questions about approval and availability in your country, contact a Telenetics sales representative or distributor. France Japan Germany...

  • Page 178: Installation Notes

    Installation Notes This section provides information useful when installing the modem in countries other than the U. S. A. and Canada. Models 3265/3266 Warning Ports that are capable of connecting to other apparatus are defined as SELV. To ensure conformity with EN60950 - ensure that these ports are only connected to ports of the same type on other apparatus.

  • Page 179: Restricted Features Summary

    Restricted Features Summary This section summarizes restricted features, by country, as follows: • If an entry is blank, the feature is unrestricted. • If an entry reads “Restricted,” the feature is not allowed. • If the entry says that a feature is Always=x, the feature is enabled and cannot be changed by the user.
  • Page 180 Feature Australia Test=Busy Out (ATH1) Test Restricted in 3265/6 Call Progress AT&D7 108.2/Bsy AT&G Always=1800 (AT&G1) Guard Tone in 3265/67 AT&G1 1800 AT&G2 3266/8 AT&J Restricted Telco AT&P Always=33%, AT&P1 Pulse Cycle Manual Answer Ring #2 Always=4 sec Blind Dial Loss Dis Always=6 sec Dial Wait...
  • Page 181 Czech Republic and Feature Poland Test=Busy Out (ATH1) Test Restricted in all models Call Progress AT&D7 108.2/Bsy AT&G Guard Tone AT&J Restricted Telco AT&P Pulse Cycle Answer Blind Dial Loss Dis 2 sec Dial Wait 4 sec 6 sec Using S7 Pause Delay Auto Redial Restricted...
  • Page 182 Feature Germany Test=Busy Out (ATH1) Test Restricted all models† Call Progress AT&D7 Restricted 108.2/Bsy AT&G Guard Tone AT&J Restricted Telco AT&P Always=40% Pulse Cycle AT&P0 Manual Answer Ring #1 Ring #2 Ring #4 2 sec Blind Dial 4 sec Loss Dis 3 sec 7 sec 2 sec...
  • Page 183 Feature Italy Test Call Progress AT&D7 108.2/Bsy AT&G Guard Tone AT&J Restricted Telco AT&P Always=38% Pulse Cycle AT&P2 Manual Answer Ring #2 Ring #4 4 Sec Blind Dial Using S6 Loss Dis 4 sec Dial Wait 6 sec 15 sec Using S7 Pause Delay Auto Redial...
  • Page 184 Feature Norway Test Call Progress AT&D7 108.2/Bsy AT&G Restricted Guard Tone AT&J Restricted Telco AT&P Always=40%, AT&P0 Pulse Cycle Manual Answer Ring #1 Ring #2 Using S0 Restricted Blind Dial Loss Dis 3 sec 7 sec 2 sec Dial Wait 4 sec 6 sec 15 sec...
  • Page 185 Feature Sweden Test Always=4 ATX4 Call Progress AT&D7 108.2/Bsy AT&G Guard Tone AT&J Restricted Telco AT&P Always=40% Pulse Cycle AT&P0 Answer Restricted Blind Dial Loss Dis 15 sec Dial Wait 30 sec 40 sec Pause Delay Auto Redial LAL Busy Out DTE Pin 25 Always=72 ms Tone Length...

  • Page 186: Operating Notes

    An OK lets the software package continue communication with the modem. Some software packages may be affected by this new functionality. Telenetics recommends that you change the initialization string of your software communication package for the restricted options or option settings that may apply in your country.

  • Page 187: 3260 Dial Only Modem

    3260 Dial Only Modem 3260 Modem Rear Panel (Dial Only) Figure C-1 shows the rear panel of the 3260 dial only modem. This version is used • U. S. A. (Model 3260) • Canada (Model 3265) • Japan (Model 3265) DIAL LINE PHONE...

  • Page 188: 3265 Dial Only Modem

    3265 Dial Only Modem This section shows rear panel views of the 3265 dial only modem, and the countries using the layout. 3265 Modem Rear Panel—View A Figure C-3 shows View A of the 3265 Modem. This version is used in: •...

  • Page 189: 3265 Modem Rear Panel-View B

    3265 Modem Rear Panel—View B Figure C-4 shows View B of the 3265 Modem. This version is used in Germany and Austria. DIAL LINE 1 ON 6 Figure C-4. View B Rear Panel Layout - 3265 (Dial Only) 3265 Modem Rear Panel—View C Figure C-5 shows View C of the 3265 Modem.

  • Page 190: 3266 Modem (Leased Line With Dial Restoral

    3266 Modem (Leased Line with Dial Restoral) This section shows three rear panel views of the 3266 leased line modem with dial restoral, and the countries using the layout. 3266 Modem Rear Panel—View A Figure C-7 shows View A of the 3266 Modem. This version is used in: •...

  • Page 191: 3266 Modem Rear Panel-View B

    3266 Modem Rear Panel—View B Figure C-8 shows View B of the 3266 Modem. This version is used in Germany and Austria. DIAL PRIVATE LINE LINE 1 ON 6 Figure C-8. View B Rear Panel Layout - 3266 (Leased Line with Dial Restoral) 3266 Modem Rear Panel—View C Figure C-9 shows View C of the 3266 Modem.

  • Page 192: Rear Panel Interface Pinouts

    Rear Panel Interface Pinouts This section shows the rear panel interface pinouts for the modem stand-alone models 3260, 3261, 3265, and 3266, and enclosure card models 3262, 3263, 3267, and 3268. Standalone Models 3260/65 and 3261/66 Interface Pinouts This section shows the pinouts for the standalone modem’s rear panel connectors. Dial Line Interface (Models 3260/3265) Dial line connection is made via the DIAL LINE interface on the modem’s rear panel.
  • Page 193 Phone Connector Interface (Models 3260/3265) Connection to an external telephone can be made using the PHONE connector on the modem’s rear panel. Table C-3 describes PHONE connector interface pinouts. Table C-3. Phone Line Interface (Models 3260/3265) Phone Line Canada/ Connector Pin U.
  • Page 194 2-Wire Leased Line Interface (Models 3261/3266) 2-wire leased line connections are made via the LEASE LINE interface on the modem’s rear panel. Table C-5 describes 2-wire leased line interface pinouts. Table C-5. 2-Wire Leased Line Interface (Models 3261/3266) Leased Line Connector Pin 4-Wire Leased Line Interface (Models 3261/3266) 4-wire leased line connections are made via the LEASE LINE interface on the...

  • Page 195: Card Models 3262/67, 3263/68 Backplane Interface Pinouts

    Phone Connector Interface (Models 3261/3266) Connection to an external telephone can be made using the PHONE connector on the modem’s rear panel. Table C-7 describes PHONE connector interface pinouts. Table C-7. Phone Line Interface (Models 3261/326) Phone Line Connector Pin Canada/U.
  • Page 196 2-Wire Leased Line Interface (Models 3262/3267) 2-wire leased line connections are made via the 2W LEASE interface for modem A, and via the 2W/4W LEASE interface for modem B. Tabl eC-9 describes 2-wire leased line interface pinouts. Table C-9. 2-Wire Leased Line Interface (Models 3262/3267) 2-Wire Lease and 2- and 4-Wire Lease Connector Pin...

  • Page 197: Delayed And Forbidden Lists

    4-Wire Leased Line Interface (Models 3263/3268) 4-wire leased line connections are made via the 2W/4W LEASE interface. Table C-11 describes 4-wire leased line interface pinouts. Table C-11. 4-Wire Leased Line Interface (Models 3263/3268) Dial Line Connector Pin Delayed and Forbidden Lists When operating in certain countries, the modem processes call attempt failures as delayed and forbidden calls.

  • Page 198: Austria-Forbidden Call Lists

    Austria—Forbidden Call Lists The modem processes call attempt failures as forbidden calls, according to PTT regulations. Before dialing a number, the modem determines whether: • The number is on the forbidden list • The forbidden list is full (the list holds 16 numbers) In either case, the number is not dialed.

  • Page 199: Finland-Delayed Call Lists

    Finland—Delayed Call Lists The modem processes call attempt failures as delayed calls, according to PTT regulations. Before dialing a number, the modem determines whether: • The number is on the delayed list • The delayed list is full (the list holds 16 numbers) In either case, the number is not dialed.

  • Page 200: Hong Kong-Delayed Call Lists

    Hong Kong—Delayed Call Lists The modem processes call attempt failures as delayed calls, according to PTT regulations. Before dialing a number, the modem determines whether: • The number is on the delayed list • The delayed list is full (the list holds five numbers) In either case, the number is not dialed.

  • Page 201: Netherlands-Delayed Call Lists

    Netherlands—Delayed Call Lists The modem processes call attempt failures as delayed calls, according to PTT regulations. Before dialing a number, the modem determines whether: • The number is on the delayed list • The delayed list is full (the list holds 16 numbers) In either case, the number is not dialed.

  • Page 202: Spain-Delayed Call Lists

    Spain—Delayed Call Lists The modem processes call attempt failures as delayed calls, according to PTT regulations. Before dialing a number, the modem determines whether: • The number is on the delayed list • The delayed list is full (the list holds 16 numbers) In either case, the number is not dialed.

  • Page 203: Industry Canada Equipment Attachment Limitations

    Canada. The label does not guarantee, however, that the equipment will operate to your satisfaction. Repairs to certified equipment should be made by an authorized Telenetics agent. If the equipment malfunctions due to any unauthorized repair or alteration, the telecommunications company may request that you disconnect the equipment.

  • Page 204: Rear Panel Pinouts

    Rear Panel Pinouts This section provides the rear panel pinouts for the 3265/3266 Modem, cross-referenced to the pinouts for the telco jacks supported in Canada. 3265 Modem Table C-12 describes dial line connector pinouts for RJ jack types. Table C-12. DIAL LINE Connector Pinouts for Jack Operation Dial Line Connector...

  • Page 205: Telco Option (At&J)

    3266 Modem Table C-14 describes dial line connector pinouts for RJ jack types. Table C-14. DIAL Line Connector Pinouts for Jack Operation Dial Line Dial Line Connector Pin Jack Function Ring X = active signal. Table C-15 describes the Phone connector pinouts for RJ jack types. Table C-15.

  • Page 206: Compliance With Bs6328: Part 1: 1982 Section 8.3

    Telenetics with compliant settings. Hong Kong and United Kingdom—BABT Regulations The following sections outline the BABT regulations as they relate to Telenetics 3265 and 3266 Modem operation in Hong Kong and the United Kingdom. Compliance with BS6328: Part 1: 1982 Section 8.3 This modem is not suitable for use with circuits employing British Telecommunications (BT) signaling of 2280 Hz.

  • Page 207: Compliance With Bs6305 Clause 6.2, Bs6320 Clause 7.2

    Compliance with BABTSITS/82/01/C and BABT/SITS/ 82005S/D The approval of this modem for connection to British Telecommunications private speechband circuits is invalid if the apparatus is subject to any modification not authorized by the British Approvals Board of Telecommunications (BABT) or if it is used with or connected to any of the following: •...

  • Page 208: Compliance With Babt/Sits/83/08/A Clause 1.2

    Compliance with BABT/SITS/83/08/A Clause 1.2 The modem cannot allow Auto Call using “999” or other PABX emergency numbers. Modes other than 1, 2, or 3 should not be used on the BT PSTN. This modem is a mode 1 device. Check the numbers entered during the Auto Call setup phase prior to dialing.

  • Page 209: Compliance With Dti 83/009I

    Any other usage will invalidate the approval of the apparatus if, as a result, it ceases to conform to the standards against which approval was gained. This apparatus is only approved for compatible PBXs. Telenetics should be con- sulted for an up-to-date list of compatible PBXs.

  • Page 210: Installation Of Telephone Socket

    Installation of Telephone Socket If you need to obtain a suitable British Telecom socket or extension, make a photocopy of the following form, complete all the necessary information, and return it to your local telephone sales office. Application for Installation of Telephone Socket Complete this application and send it to your local telephone sales office only if a suitable British Telecom socket or extension is required.

  • Page 211: Fcc Regulations

    Also, this equipment cannot be used on telephone company-provided coin service. Connection to a party line is subject to state tariffs. If you experience problems with this equipment, contact Telenetics for repair and/or warranty information. If the trouble is causing harm to the telephone network, the telephone company may request that you remove the equipment from the network until the problem is resolved.

  • Page 212: Dial Line Jack Types

    Dial Line Jack Types The Federal Communication Commission (FCC) is a telecommunications and standards organization that specifies a series of registered jacks for use with a dial line network or General Switched Telephone Network (sometimes referred to as PSTN). These jacks are designated as RJxxx-type jacks, where RJ means Registered Jack and xxx specifies the jack series.

  • Page 213: Rear Panel Pinouts

    Rear Panel Pinouts This section provides modem rear panel pinouts, cross-referenced to the pinouts for the telco jacks supported in the U. S. A. 3260 Modem Table C-16 describes DIAL LINE connector pinouts for RJ jack types. X indicates the signal is active. Table C-16.
  • Page 214 3261 Modem Table C-18 describes DIAL LINE connector pinouts for RJ jack types. X indicates the signal is active. Table C-18. DIAL LINE Connector Pinouts for Jack Operation PHONE Connector Pin No. Table C-19 describes PHONE connector pinouts for RJ jack types. X indicates the signal is active.

  • Page 215: Dial And Leased Line Transmit Levels

    Dial and Leased Line Transmit Levels Dial Line Transmit Level Your 3260, 3261, 3262, or 3263 Modem does not support the DL TX option. You select the dial line transmit level through the Telco option in the TELCO OPT’s category. Use the following as a guide: Telco Jack Selection Dial Transmit Level RJ11C (Permissive)

  • Page 216: Telco Option (At&J

    Telco Option (AT&J) Telco displays only on U. S. A. and Canadian 326X Series Modems. It is used to select the RJ-jack type. Telco corresponds to the AT&J command as follows: Option Setting RJ11C RJ45S RJ16C RJ4MB Declaring The Jack Type Once 326x Ready displays, you must declare the jack type you used to connect your modem to the dial/leased line so that the modem recognizes this connection (see Tables C-16 or C-18).

  • Page 217: Using The Modular Nest Backplane's Busy Out Feature

    Using the Modular Nest Backplane’s Busy Out Feature This section applies to the following countries, which use the “Universal International” (UI) Modular Nest enclosure backplane: • Australia • Belgium • Canada • Denmark • Finland • Ireland • Israel • Norway •...
  • Page 218 Removal by unqualified personnel could result in personal injury or equipment damage, which could jeopardize your warranty and maintenance agreement. Users who are not qualified to perform this action themselves should contact Telenetics or an authorized distributor regarding available upgrade services. C-44 Country-Specific Information Function U.
  • Page 219 éventuelle du contrat de garantie et de maintenance. Nous conseillons aux utilisateurs non qualifiés pour effectuer cette procédure de contacter Telenetics ou un distributeur agréé pour obtenir une liste des services de mise à jour disponibles. Warnung Kontaktstiftüberbrückungen sollten nur von qualifiziertem...
  • Page 220 Refer also to Figure C-10, which shows pin locations on Modular Nest 21 back- planes. Modular Nest 9s have a similar layout. Jumpers on Left Pin Pairs Figure C-10. Modular Nest Backplane Pin Locations (Modular Nest 21 Shown) In Hong Kong and the United Kingdom, Busy Out backplanes are hard-wired for Busy Out operation.
  • Page 221 This glossary defines terms used in data communications and in the 326X Series Modem documentation set. Automatic Calling Unit or Auto-Call Unit. Internal or external to the DCE, the ACU is a command set interface between the attached DTE and the modem that uses the normal DTE/ DCE interface.
  • Page 222 Busy out An indication to a Central Office that a subscriber line is not available to answer incoming calls. The availability and implementation of Busy Out varies by country. Byte An 8-bit sequence of binary digits (bits) taken as a single unit by a computer. CCITT.
  • Page 223 ITU -T Telecommunication Standardization Sector of ITU. ITU V.13 V.13 signaling allows your modem to communicate with non-Telenetics modems. This signaling operates when the modem is configured for synchronous mode. ITU V.22 bis 2400 bps modem standard for use with dial and leased-line circuits.
  • Page 224 ITU V.24 An electrical standard for interconnecting data communications equipment and data terminal equipment established by the ITU. It is the most commonly used computer/modem interface. Nearly equivalent to EIA/TIA 232-D. ITU V.25 bis An ITU-specified serial Auto-Call Unit (ACU) for operation with both asynchronous and synchronous DTE equipment.
  • Page 225 Modulation Systematic changing of properties (e.g., amplitude, frequency, phase) of an analog signal to encode and convey digital information. Microcom Networking Protocol. An asynchronous communications protocol that provides error correction. Multiplexer (1) Any multiport device that allows two or more users to share a common physical transmission channel;...
  • Page 226 Sync character. Establishes synchronism and fills time in the absence of any data or control character to maintain synchronism. Synchronous Data accepted or provided with an accompanying time signal. Synchronous Data An algorithm that allows the modem to run at a DTE rate higher than the DCE rate. This is compression (SDC) accomplished by receiving frames of data at the originating end, compressing, and then transmitting the data at the slower DCE rate, and decompressing the data at the receiving...

  • Page 227: Packaging Guidelines For Equipment Return

    Contents Equipment Return Procedures ... Expiration of Lease ... Factory Repair ... Packaging Guidelines for Equipment Return ... Return Procedures Return Procedures -1...
  • Page 228 • Reason for return Factory Repair To return equipment for factory repair, call Telenetics at (949) 455-4000 for return authorization and instructions. When you call, you will be given a Return Material Authorization (RMA) control number. Mark this number clearly on the shipping container for ease of identification and faster service.
  • Page 229 Symbols +++ (AT escape sequence) 5-13 <> 5-13 @ dial modifier 5-12 Numerics 35XX device 4-23 A/B LED AC Detect (S-Register 98) 5-18 Access security lead digit delay timeout (S-Register 46) tone duration (S-Register 45) Adaptive Rate System Adaptive rate system ALM LED Always= APPC/APPN...
  • Page 230 ci rcuit quality monitoring system (CQMS) cluster controller 4-16 COM port command line Command mode leaving command mode communications softwar e3-9, 4-2, 5-2, Communications software, equipment needed computer connectors Configuration options selecting from front panel Configuration options list configure a modem configure and operate the modem CONNECT 1200 message A-41...
  • Page 231 IBM AS 400 3-10, 4-16, 4-19 initialization strings C-12 initiate and terminate test s6-10 INITIATING RC message A-41 Installation connecting a telephone to modem ferrite cylinder setting DIP switch A-44 site selection Interfaces digital LEASE LINE PHONE Ireland Israel Italy ITU recommendation V.35 ITU V.35 interfac e2-6...
  • Page 232 PHONE connector pinouts Pinouts EIA/TIA 232-D interface 3260/65 C-18 3261/66 C-19 3262/67 C-22 3263/68 C-22 ITU V.35 recommendatio LEASE LINE NC (Network Control) port PHONE pinouts C-39 Poland Portugal C-10 Postscript number power cable 2-7, 2-9, 2-14 power connectors RC ABORTED message A-41 RC COMPLETE messag eA-41...
  • Page 233 C-16 Status snapshots Sweden C-11 Switzerland C-11 synch data format Synchronous data compression (SDC) Talk/data switch Telenetics extended AT command set Telenetics offices Telenetics website telephone book telephone connection to modem terminal server 4-16 Test timer (S-Register 18) 5-14 Tests...

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