Multitech MT2834ZDX Quick Reference Manual
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Multitech MT2834ZDX Quick Reference Manual

Multi-tech multimodem mt2834zdx modems: user guide
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FCC Part 15
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harm-
ful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Plug the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC rules. Operation is sub-
ject to the following conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference that may
cause undesired operation.
WARNING: Changes or modifications to this unit not expressly ap-
proved by the party responsible for compliance could void the user's
authority to operate the equipment.

Industry Canada

This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numerique de la classe B respecte toutes les exigences du
Reglement sur le materiel brouilleur du Canada.

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  • Page 1: Industry Canada

    FCC Part 15 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 2 82034908...
  • Page 3 Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes in the content hereof without obli- gation of Multi-Tech Systems, Inc. to notify any person or organization of such revi- sions or changes.

  • Page 4: Table Of Contents

    Adding the Modem to Windows ... 12 Removing Your Old Modem from Windows ... 13 Step 4: Install and Configure Your Software ... 14 Step 5: Call the Multi-Tech BBS ... 16 Windows HyperTerminal ... 16 Windows Terminal ... 18 Running MultiModemZDX Help ...
  • Page 5 Communications Software ... 26 Connections ... 27 Connecting to the Computer (“RS232”) ... 27 Connecting to the Telephone Line (“LINE”) ... 28 Connecting a Telephone Set (“PHONE”) ... 28 Connecting to Power (“POWER”) ... 29 Surge Protectors and Lightning ... 29 Front Panel ...
  • Page 6 Technical Support ... 90 Online Warranty Registration ... 91 The Multi-Tech BBS ... 91 To Log on to the Multi-Tech BBS ... 91 To Download a File ... 92 About the Internet ... 93 About the Multi-Tech Fax-Back Service ... 94 viii ...
  • Page 7 Contents...
  • Page 8 Quick Reference Guide...

  • Page 9: Chapter 1: Introduction

    Introduction...
  • Page 10 Quick Reference Guide...

  • Page 11: Congratulations

    (33,600 bps), MT2834ZDXK (UK), and MT2834ZDXI (international) versions of the modem. Except where specifically noted, references to the MT2834ZDX should be understood to apply to all versions, whereas references to the ZDX, ZDXb, ZDXK, and ZDXI refer to specific versions.

  • Page 12: What Is In My Modem Package

    A communications software disk • This Quick Reference Guide If any of these items are missing, please contact Multi-Tech Systems or your dealer/distributor (see Appendix C for information on contacting Multi- Tech via telephone, fax, bulletin board service, and the Internet).

  • Page 13: Chapter 2: Quick Start

    Quick Start...
  • Page 14 Quick Reference Guide...

  • Page 15: Introduction

    Introduction We know you’re eager to get your Multi-Tech MultiModemZDX fax mo- dem up and running, so we’ll skip the features for now, and show you step-by-step how to set it up, check it out, and make your first calls.

  • Page 16: Safety Warnings

    Quick Reference Guide Safety Warnings • Use this product only with UL- and CUL-listed computers. • To reduce the risk of fire, use only 26 AWG or larger telephone wiring. • Never install telephone wiring during a lightning storm. • Never install a telephone jack in a wet location unless the jack is specifically designed for wet locations.

  • Page 17: Step 2: Connect The Modem To Your System

    2 Quick Start Step 2: Connect the Modem to Your System Placing the MT2834ZDX in a convenient location, connect it to your computer’s serial port, to the telephone line, to AC power, and, option- ally, to your telephone. Figure 2-2. MT2834ZDX connections.

  • Page 18: Rs232 Connection

    COM1 or COM2. LINE Connection Plug one end of the phone cable into the MT2834ZDX’s LINE jack, and the other end into a phone line wall jack. Note: The ZDX's LINE jack is not interchangeable with the PHONE jack.

  • Page 19: Power Connection

    Plug the power supply module into an AC power outlet or power strip. Plug the power supply’s cable into the POWER jack on the modem. Note: Use only the power supply supplied with the MT2834ZDX. Use of any other power supply will void the warranty and could damage the modem.

  • Page 20: Step 3: Install The Modem In Windows

    Guide , “Solving Problems.” 2. If Windows identifies your modem correctly as a MultiTech Multi- Modem or a MultiModem MT2834ZDX, click Next to install the mo- dem. After the modem is installed, click Finish to exit. 3. If Windows cannot identify your modem (for instance, if it identifies your modem as a “Standard Modem”), click Change.

  • Page 21: Removing Your Old Modem From Windows

    Removing Your Old Modem from Windows When a new modem replaces another modem, the old modem installa- tion remains in Windows after you install the new modem, and the old modem is still selected in HyperTerminal and other Windows 95 or NT applications.

  • Page 22: Step 4: Install And Configure Your Software

    Step 4: Install and Configure Your Software You must have communications software installed in your computer to use the MT2834ZDX. If you wish to use communications software that is already installed, you should reconfigure it for the MT2834ZDX; oth- erwise, install the data and fax communications software provided with the MT2834ZDX (see software documentation for installation instruc- tions).

  • Page 23: Quick Start

    create a default configuration for a Macintosh computer that turns off autoanswer, type AT&F&D0S0=0&W. The new configuration loads automatically whenever the modem is turned on or receives the ATZ command. 6. Select the port the modem is connected to (normally COM1 or COM2).

  • Page 24: Step 5: Call The Multi-Tech Bbs

    Step 5: Call the Multi-Tech BBS Test the modem’s data functions by calling the Multi-Tech Bulletin Board System (BBS) and downloading ZDXHELP.HLP, which contains the full MultiModemZDX Owner’s Manual in convenient Windows Help format.
  • Page 25 8. Click OK, and then click Dial. You will know you have reached a modem by the harsh sounds of the modem handshake. 9. When the BBS welcome screen appears in the HyperTerminal win- dow, type your first name, last name, and password following the prompts.

  • Page 26: Windows Terminal

    Quick Reference Guide Windows Terminal 1. Open the Accessories program group and double-click on the Terminal icon. 2. Select the Settings menu and make the following changes: Phone Number: Type 1-800-392-2432 if you are in North America, or type an overseas access code and 612-785-3702 if you are out- side North America.

  • Page 27: Running Multimodemzdx Help

    10. Type X and press ENTER to select the Xmodem transfer protocol. 11. To begin the download in Terminal, click Transfers, then click Receive binary file. Next, select the destination directory, type the file name (zdxhelp.hlp), and click OK. If the download fails, your baud rate may be set too high.

  • Page 28: References

    The following Web sites are good places to start: • Costmo’s Other Resources Page: http://modems.rosenet.net/or/ • Curt’s High Speed Modem Page: http://elaine.teleport.com/~curt/modems.html • Data Communications FAQ: http://www.best.com/~malch/comfaq.html • Multi-Tech Systems, Inc.: http://www.multitech.com/...

  • Page 29: Chapter 3: Features

    Features...
  • Page 30 Quick Reference Guide...

  • Page 31: What Can I Do With My Multimodemzdx

    You can also telecommute with your fax modem— work at home while communicating with the office by modem or fax. And of course, you can use your MT2834ZDX to send and receive fax- es anywhere in the world, enabling you to communicate quickly with...

  • Page 32: Features

    Quick Reference Guide Features The MT2834ZDX automatically adjusts to line conditions and to the capabilities of the modem it connects to, resulting in the highest trans- mission speed, the most accurate error correction, and the most effi- cient data compression possible for each connection. The MT2834ZDX follows the ITU-T V.34 specification for data rates as high as 28,800 bps...

  • Page 33: Required Equipment

    3 Features Required Equipment In addition to the contents of the MT2834ZDX package, you need the following equipment. Computer The MT2834ZDX can be connected to any computer with an RS-232C/ V.24 serial port, such as the IBM PC, XT, AT, and PS/2 computers, and most PC compatibles.

  • Page 34: Telephone Line

    Telephone Line You must have a telephone line with a jack (connector) that accepts the cable that comes with the MT2834ZDX. If you do not have a telephone jack near your computer, you should install one before proceeding. In North America, do-it-yourself telephone extension kits and accesso- ries are available wherever telephones are sold.

  • Page 35: Connections

    3 Features Connections All models connect to your computer (“RS232”), to a telephone line (“LINE”), to a power source (“POWER”), and, optionally, to a telephone set (“PHONE”). Figure 3-1. ZDX connectors. Connecting to the Computer (“RS232”) Using a matching serial cable, connect the RS232 connector on the modem to one of the serial port connectors on the back of your comput- er.

  • Page 36: Connecting To The Telephone Line ("Line")

    Quick Reference Guide Connecting to the Telephone Line (“LINE”) Plug one end of the cable provided with the MT2834ZDX into the tele- phone jack in your home or office. Plug the other end into the LINE jack on the MT2834ZDX.

  • Page 37: Connecting To Power ("Power")

    3 Features Connecting to Power (“POWER”) Low voltage DC power is supplied to the MT2834ZDX through a modu- lar power supply included with the modem. Plug the power supply mod- ule into a convenient AC power outlet or surge protector. Plug the connector on the other end of the power cord into the POWER jack on the modem.

  • Page 38: Front Panel

    Quick Reference Guide Front Panel The MT2834ZDX has ten LED indicators on the front panel that indicate status, configuration, and activity: Transmit Data. The TD LED lights when the modem is transmit- ting data to another modem. The state of the LED matches the TD circuit on pin 2 of the RS-232C/V.24 interface.
  • Page 39 Fax. The FX LED lights when the modem is in fax mode. Note: When you turn on the MT2834ZDX, the speed lights flash briefly as the modem does a self-test, then the LED for the default modem baud rate lights.

  • Page 40: Speed Indicator Blink Rates

    The 28 (33), 14, and 96 speed indicators light singly or in combination to indicate data rates. Data rates for the ZDX are shown in the following table. Data rates for the ZDXb are shown on the inside back cover. MT2834ZDX Data Rates...

  • Page 41: Chapter 4: At Commands, S-Registers & Result Codes

    AT Commands, S-Registers & Result Codes...
  • Page 42 Quick Reference Guide...

  • Page 43: At Commands

    AT Commands This section summarizes your modem’s AT commands. For detailed information on the commands, download the ASCII text or Windows Help versions from the Multi-Tech BBS (see “Step 5: Call the Multi- Tech BBS” in Chapter 2). Command: Values:...

  • Page 44: Quick Reference Guide

    Quick Reference Guide &A n Command: Values: Default: Description: &A0 &A1 Command: $A n Values: Default: Description: Command: #A n Values: Default: Description: Command: Values: Default: Description: Answerback n = 0 or 1 Disables answerback. Enables answerback reply to an ID request. Auto-Reliable Buffering n = 0 or 1 Discard data received during establishment of a...
  • Page 45 4 AT Commands, S-Registers, and Result Codes &BS n Maximum Reliable Block Size Command: Values: Default: Description: &BS0 Maximum transmit block size of 64 characters. &BS1 Maximum transmit block size of 256 characters. Command: $BA n Baud Adjust Values: Default: Description: $BA0 Set baud adjust off, speed conversion on.
  • Page 46 Quick Reference Guide Command: Values: Default: Description: Command: D s N d Store Telephone Number Values: Default: Description: &D n Command: Values: Default: Description: &D0 &D1 &D2 &D3 Command: $D n Values: Default: Description: Dial s = dial string (phone number and dial modifiers) none Dial telephone number s , where s may include up to 60 digits and T, P, R, comma, colon, and...
  • Page 47 4 AT Commands, S-Registers, and Result Codes %DC n AT Command Control Command: Values: Default: Description: %DC0 The modem responds to AT commands. %DC1 The modem ignores AT commands. Note: The modem will respond to AT%DC for 10 seconds after power-up. %DF n Format Line Probe Data Command: Values:...
  • Page 48 Quick Reference Guide Command: Values: Default: Description: Command: &E n Values: Default: Description: &E0 &E1 &E2 Command: &E n Values: Defaults: Description: &E3 &E4 &E5 Command: &E n Values: Defaults: Description: &E6 &E7 Command: &E n Values: Default: Description: &E8 &E9 Echo Command Mode Characters n = 0 or 1...
  • Page 49 4 AT Commands, S-Registers, and Result Codes &E n Command: Values: Default: Description: &E10 Disable non-error correction mode flow control. &E11 Enable non-error correction mode flow control. Command: &E n Values: Default: Description: &E12 Pacing disabled. &E13 Pacing enabled. Command: &E n Values: Default:...
  • Page 50 Quick Reference Guide %E n Command: Values: Defaults: Description: &F n Command: Values: Default: Description: &F0 &F8 &F9 $F n Command: Values: Default: Description: Escape Sequence Options n = 0–5 1 and 4 Modem won’t escape. +++AT<CR> method. <BREAK>AT<CR> method. Both +++AT<CR>...
  • Page 51 4 AT Commands, S-Registers, and Result Codes %F n Command: Values: Default: Description: Command: #F n Values: Default: Description: Command: &G n Values: Default: Description: &G0 &G1 &G2 Note: The ZDXK is locked to the ITU-T 1800 Hz guard tone (&G2). Command: Values: Default:...
  • Page 52 Display modem ID number. Display firmware version number. Display modem description. Enter Login Password x = password (6–10 characters) MULTI-TECH Enters the remote configuration login password. Store Login Password x = password (6–10 characters) MULTI-TECH Stores a new remote configuration login password.
  • Page 53 4 AT Commands, S-Registers, and Result Codes Note: For L9, L10, and L11, you must first type +++AT<CR> (on-line escape command while maintaining command mode), then type the command prefixed by an AT (e.g., ATL10). #L n Command: Values: Default: Description: Command: Values:...
  • Page 54 Quick Reference Guide $MB n Modem Baud Rate Command: Values: Default: Description: $MB75 $MB300 $MB1200 $MB2400 $MB4800 $MB7200 $MB9600 $MB14400 $MB16800 $MB19200 $MB28800 $MB33600 Command: Values: Default: Description: Command: N d N e ... Number Linking Values: Default: Description: Command: Values: Description: n = speed...
  • Page 55 Disable result codes (quiet). Enable no-response answer mode, which leaves originate mode intelligent while turning off answer mode responses and echo. Multi-Tech or Standard Result Codes n = 0 or 1 Multi-Tech responses with modifiers. Standard AT responses with no modifiers.
  • Page 56 Quick Reference Guide Command: Values: Default: Description: Command: &R n Values: Default: Description: &R0 &R1 &R2 &RA n Asymmetrical Bit Rate Command: Values: Default: Description: &RA0 Enable asymmetrical bit rate in V.34 mode. &RA1 Disable asymmetrical bit rate in V.34 mode. &RD n Square Wave Ring Detect Command: Values:...
  • Page 57 4 AT Commands, S-Registers, and Result Codes Command: &RN Values: Description: Command: &RP Values: Description: Command: &RR Values: Description: Command: $R n Values: Default: Description: Command: S r = n Values: Default: Description: Rate Negotiation Forces the modem to perform a rate renegotia- tion while on line.
  • Page 58 Quick Reference Guide S r ? Command: Values: Default: Description: Command: &S n Values: Default: Description: &S0 &S1 &S2 Command: &SF n DSR/CD Interaction Control Values: Default: Description: &SF0 Select DSR to follow CD. &SF1 Select DSR to be independent. Command: $SB n Serial Port Baud Rate Values:...
  • Page 59 4 AT Commands, S-Registers, and Result Codes #S y Command: Values: Default: Description: #S= y Store Setup Password Command: Values: Default: Description: Command: Values: Default: Description: &T n Command: Values: Default: Description: &T4 &T5 Command: #T n Values: Default: Description: Enter Setup Password y = password (6–10 characters) MODEMSETUP...
  • Page 60 Quick Reference Guide Command: Values: Default: Description: Command: Values: Default: Description: Command: Values: Default: Description: Command: Values: Description: Command: &W n Values: Default: Description: &W0 &W1 Loopback Test Modes n = 0, 1, 2, or 3 None Enable local nalog loopback originate mode. Enable local analog loopback answer mode.
  • Page 61 4 AT Commands, S-Registers, and Result Codes Command: Values: Default: Description: #X n Command: Values: Default: Description: Command: Values: Default: Description: Result Codes and Call Progress Selection n = 0–4 Basic result codes ( CONNECT only); does not look for dial tone or busy signal. Extended result codes ( CONNECT 28800, CONNECT 33600 , etc.);...
  • Page 62 Quick Reference Guide Command: Values: Description: Command: Values: Description: Command: Values: Description: Command: Values: Description: Command: Values: Description: Command: Values: Description: Modem Reset Reset modem to default values. Defaults come from user NVRAM if &W0 is set, from factory ROM if &W1 is set. Dialing Pause Placed in dialing command, comma causes dialing pause for time set by S8.
  • Page 63 4 AT Commands, S-Registers, and Result Codes Command: Values: Description: Command: %%%AT<CR> Remote Configuration Escape Sequence Values: Description: Command: +++AT<CR> Escape Code Values: Description: Command: <BREAK>AT<CR> Escape Sequence Values: Description: Call Card Tone Detect Placed in dial command, causes modem to wait for a call card tone before processing next part of command (such as a call card number).

  • Page 64: S-Registers

    Quick Reference Guide S-Registers Certain modem values, or parameters, are stored in memory locations called S-registers. Use the S command to read or to alter the contents of S-registers (see previous section). Register Unit 1 ring 1 ring decimal 0–127 decimal 0–127 decimal 0–127 decimal 0–127...
  • Page 65 4 AT Commands, S-Registers, and Result Codes Register Unit 1 sec. 100 ms 100 ms 1 ms decimal 0, 1–127 37 (%) 10 ms 50 ms 100 ms Range Default 0–255 4–255† 4† 4–7‡ 4‡ 1–255 1–254, 1–255 80–255* 80* 80–255‡...
  • Page 66 Quick Reference Guide Register Unit 1 min. 100 ms 1 char- 0–60 acter 1 sec. 1 sec. decimal 28, 26, decimal 33, 31, Range Default 0, 1–255 0 0–255 0, 1-255 5 0-255 24, 21, 19, 16, 14, 12, 96, or 48 28, 26, 24, 21, 19, 16,...

  • Page 67: Result Codes

    4 AT Commands, S-Registers, and Result Codes Result Codes In command mode the MT2834ZDX can send responses, or result codes, to your computer. Result codes are used by communications programs and can also appear on your monitor. AT&Q0 selects Multi-Tech result codes with RELIABLE, LAPM, and COMPRESSED modifiers (default).
  • Page 68 Quick Reference Guide...

  • Page 69: Chapter 5: Solving Problems

    Solving Problems...
  • Page 70 Quick Reference Guide...

  • Page 71: Introduction

    Introduction Your MultiModemZDX modem was thoroughly tested at the factory be- fore it was shipped. If you are unable to make a successful connection, or if you experience data loss or garbled characters during your connec- tion, it is possible that the modem is defective. However, it is more likely that the source of your problem lies elsewhere.

  • Page 72: The Modem Does Not Respond To Commands

    Test that the outlet is live by plugging a lamp into it. The modem or power supply may be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem or power supply may be defective. Call Technical Support for assistance.
  • Page 73 tialization string includes &F as the first command, to cancel any “leftover’ command that could affect the modem’s operation. If you don’t get an OK , the problem may still be in the communica- tion program. Make sure you have done whatever is necessary in your software to make a port connection.
  • Page 74 Quick Reference Guide Then select Mouse, COM Ports, and IRQ Status and note the addresses and IRQs that are in use. If you find an IRQ conflict, note which IRQs are not being used, then change one of the conflicting devices to use one of the unused IRQs.

  • Page 75: The Modem Dials But Cannot Connect

    The modem might be defective. If you have another Multi-Tech mo- dem, try swapping modems. If the problem goes away, the first modem is possibly defective. Call Technical Support for assistance (see Appendix C). The Modem Dials But Cannot Connect There can be several reasons the ZDX fails to make a connection.
  • Page 76 Quick Reference Guide as an error. Make sure your modem’s square wave ring detection is turned on (&RD1). Check the PBX manual to see if you can change the internal dial tone; if you can’t, change your modem’s initializa- tion string to replace X4 with X3, which will cause the modem to ignore dial tones.

  • Page 77: The Modem Disconnects While Online

    The Modem Disconnects While Online If you have Call Waiting on the same line as your modem, it can interrupt your connection each time someone tries to call you. If you have Call Waiting, disable it before each call. In most tele- phone areas in North America, you can disable Call Waiting by preceding the telephone number with *70 (check with your local telephone company).

  • Page 78: The Modem Cannot Connect When Answering

    File Transfer Is Slower Than It Should Be You might have an older UART. For best throughput, install a 16550AFN UART or a Multi-Tech ISI serial port card. See the “Quick Start” chapter for information on how to identify your UART.

  • Page 79: Data Is Being Lost

    Data Is Being Lost If you are using data compression and a high speed serial port, set the serial port baud rate to four times the data rate. Your UART might not be reliable at serial port speeds over 9600 bps or 19,200 bps.

  • Page 80: Fax And Data Programs Can't Run At The Same Time

    Quick Reference Guide At speeds above 2400 bps, the remote modem might not use the same transmission or error correction standards as your modem. Try connecting at a slower speed or disabling error correction. (With no error correction, however, line noise can cause garbage characters.) Try entering the L8 (List Online Diagnostics) command in online mode, making a screen print of the diagnostics listing, and check-...
  • Page 81 Appendixes...
  • Page 82 Quick Reference Guide...

  • Page 83: Appendix A: Regulatory Compliance

    Appendix A: Regulatory Compliance FCC Part 68 Telecom 1. This equipment complies with part 68 of the Federal Communications Commission Rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number. This information must be provided to the telephone company.
  • Page 84 7. If trouble is experienced with this equipment (the model of which is indi- cated below) please contact Multi-Tech Systems, Inc. at the address shown below for details of how to have repairs made. If the equipment is causing harm to the network, the telephone company may request you remove the equipment from the network until the problem is resolved.

  • Page 85: Fax Branding Statement

    Fax Branding Statement The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device, including fax machines, to send any message unless such message clearly contains the following information: • Date and time the message is sent •...

  • Page 86: Canadian Limitations Notice

    Quick Reference Guide Canadian Limitations Notice Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5.

  • Page 87: Compliance With Babt Requirements

    Compliance with BABT Requirements Approved for connection to telecommunications system specified in the in- structions for use subject to the conditions set out in them. Warning: Interconnection directly, or by way of other apparatus, of ports marked “SAFETY WARNING see instructions for use” with ports marked or not so marked may produce hazardous conditions on the network.

  • Page 88: European Low Voltage Directive

    Quick Reference Guide European Low Voltage Directive When correctly installed, the modem will present no hazard to the user. When correctly installed, the modem will be connected to the PSTN or a PW and to a Data Terminal Equipment (DTE), whose modem connections com- ply with ITU-T recommendation V.28.

  • Page 89: Ctr21

    CTR21* This equipment has been approved by Commission Decision CTR21 for pan-European single terminal connection to the public switched telephone network (PSTN). However, due to differences between the individual PSTNs provided in different countries, the approval does not, of itself, give an un- conditional assurance of successful operation on every PSTN network termi- nation point.

  • Page 90: Call Attempts/Retries

    Quick Reference Guide Call Attempts/Retries Applications software shall be configured so that no more than 3 attempts are made to establish a connection to a given number. (Note: if the modem can detect service tones, up to 10 attempts can be made). There must be at least 2 seconds between call attempts.

  • Page 91: New Zealand Telecom Warning Notice

    A Regulatory Compliance New Zealand Telecom Warning Notice Use of pulse dialing, when this equipment is connected to the same line as other equipment, may give rise to ‘bell tinkle’ or noise and may also cause a false answer condition. Should such problems occur, the user should NOT contact the Telecom Faults Service.
  • Page 92 Quick Reference Guide...

  • Page 93: Appendix B: Technical Specifications

    Appendix B: Technical Specifications Your MT2834ZDX fax modem meets the following specifications: Model Numbers Data Rates (Modem) Data Rates (Fax) Data Format (Modem) Compatibility (Modem) ITU-T V.34, AT&T V.32terbo, ITU-T Compatibility (Fax) Error Correction Data Compression Speed Conversion Mode of Operation...
  • Page 94 Quick Reference Guide Flow Control Intelligent Features Command Buffer Modem Modulations Fax Modulations Carrier Frequencies ITU-T V.34 Carrier Frequencies AT&T V.32 terbo/ ITU-T V.32bis/V.32 XON/XOFF, hardware (RTS/CTS), HP (ENQ/ACK) Fully AT command compatible, autodial, redial, repeat dial, pulse or tone dial, dial pauses, call status display, auto parity and data rate selections, keyboard-controlled modem options, on-screen displays...

  • Page 95: B Technical Specifications

    Carrier Frequencies V.22bis/V.22 or Bell 212A Standard (2400 & 1200 bps) Carrier Frequencies Bell 103/113 (300 bps) Fax Carrier Frequencies Transmit Level Frequency Stability Receiver Sensitivity AGC Dynamic Range Interface Connectors B Technical Specifications Transmit originate: Transmit answer: Receive originate: Receive answer: Transmit originate: Receive originate:...
  • Page 96 Quick Reference Guide Cables Note: Any cables connected to the computer should be shielded to reduce interference. Diagnostics Indicators Speaker Manual Control Enviromental Power Requirements Dimensions One 14-foot RJ-11 phone cable (USA); country-specific cord for UK and International models; external power transformer and cord Power-on self test, local analog loop, local digital loop, remote digital loop...

  • Page 97: Appendix C: Warranty, Service, And Technical Support

    Technical Support Limited Warranty Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects in material or workmanship for a period of ten years from the date of purchase or, if date of purchase is not provided, ten years from the date of shipment (limited to customers in the U.S., Canada,...

  • Page 98: Service

    Technical Support Multi-Tech Systems has an excellent staff of technical support person- nel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, please call (800) 972-2439 (USA and Canada) or (612) 785-3500 (international and local).

  • Page 99: Online Warranty Registration

    Tech product online at the following URL: http://www.multitech.com/register/ The Multi-Tech BBS For customers who do not have Internet access, Multi-Tech maintains a bulletin board system (BBS) that mirrors its FTP site. Information avail- able from the BBS includes new product information, product upgrade files, and problem-solving tips.

  • Page 100: To Download A File

    Quick Reference Guide To Download a File If you know the file name 1. From the Main Menu, type F to access the File Menu, then type D. 2. Enter the name of the file you wish to download from the BBS. 3.

  • Page 101: About The Internet

    8. When the download is complete, press ENTER to return to the File Menu. 9. To exit the BBS, type G and press ENTER. About the Internet Multi-Tech maintains a World Wide Web site at: http://www.multitech.com and an ftp site at: ftp://ftp.multitech.com...

  • Page 102: About The Multi-Tech Fax-Back Service

    Quick Reference Guide About the Multi-Tech Fax-Back Service Multi-Tech's fax-back system provides 24-hour access to sales, market- ing, and technical literature for customers in the U.S.A. Dial (612) 717- 5888, follow the voice prompts, and enter the document number for either the Sales and Marketing catalog or the Technical Support catalog of documents.
  • Page 103 MT2834ZDXb Data Rates...

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