Multitech MT3334ZDXV Owner`s manual
Oglas
Oglas
Models MT3334ZDX and MT3334ZDXV
Data/Fax Modem
Data/Fax/Voice Modem
Owner's Manual (User Guide)
User Guide
S000343A Revision A
Models MT3334ZDX and MT3334ZDXV
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc.
All rights reserved.
Copyright © 1997 -2004 , by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.
Patents
This Product is covered by one or more of the following U.S. Patent Numbers:
5.301.274; 5.309.562; 5.355.365; 5.355.653; 5.452.289; 5.453.986; 5,535,204. Other
Patents Pending.
Revision Description
A
( 4 /26/ 04 )
Initial r elease for publication on CD
Previous release incorporate d new commands.
(11/24/97)
MultiModem, MultiModemZDX/V, Multi-Tech, and the Multi-Tech logo are trademarks of Multi-Tech Systems, Inc.
Microsoft, Windows, and Windows 95 are registered trademarks of the
Microsoft Corporation.
All brand and product names mentioned in this publication are trademarks or registered trademarks of their respective companies.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112 U.S.A.
( 763 ) 785-3500 or (800) 328-9717
U. S. FAX 763 -785-9874
Technical Support (800) 972-2439
Internet Address: http://www.multitech.com
Contents
Chapter 1 - Introduction and Description
Chapter 3 - AT Commands, S-Registers and Result Codes ............................... 8
Chapter 5 - Service, Warranty & Technical Support ............................................ 8
Chapter 2 - Installation
None of the LEDs Light When the Modem Is On .............................................. 19
The Modem Does Not Respond to Commands ................................................ 20
The Modem Dials But Cannot Make Connection .............................................. 22
The Modem Disconnects While Online .............................................................. 24
The Modem Cannot Connect When Answering ................................................ 24
Chapter 3 - AT Commands, S-Registers and
Result Codes
iii
Chapter 4 - Modem Testing
Chapter 5 - Service, Warranty and Tech Support
About the Multi-Tech BBS . . .
....................................................................................... 49
Appendix A - Technical Specifications
Appendix B - Tone Dial Frequencies
Appendix C - Regulatory Information
Compliance with BS6305 Clause 6.2, BS6320 Clause 7.2, and BABT/SITS/82/
Compliance with BS6789: Section 3.1 and Part 2 ............................................ 63
Modem CE Mark EMC and Safety Compliance ........................................................ 64
Australian and New Zealand Modem Warning Notice ............................................... 64
New Zealand Telecom Warning Notice .............................................................. 65
Index
iv
1 - Introduction and Description
Chapter 1 - Introduction and Description
Introduction
Welcome to the world of data communications. You have acquired one of the finest intelligent data/fax modems available today, the
MultiModemZDX, from Multi-Tech Systems. This Owner’s Manual will help you install, configure, test and use your MultiModemZDX.
Requirements
In addition to the contents of the MultiModemZDX package, you will need the following equipment.
Computer
The MultiModemZDX (MT3334ZDX or MT3334ZDXV) can be connected to any computer with an RS-232 serial port, such as the IBM PC, XT, AT, and PS/2 computers, and most IBM compatibles. Note that your computer system should have a processing speed of at least 75 MHz in order to take full advantage of the telephony features of this product.
Serial Cable
You will need a serial cable to connect the MultiModemZDX to your computer. Serial cables are available at computer stores and many office supply stores. The cable must have a DB-25P connector at the modem end. For IBM and compatible computers, the other end may have a DB-
25P connector or a DB-9S connector, depending on your particular computer and whether you are using the COM1 or the COM2 serial port.
Telephone Line
You must have a telephone line with a conveniently located connector
(jack) to accept the cable that comes with the MultiModemZDX. If you do not have a telephone jack near your computer, you should install an extension before proceeding.
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MT3334ZDX/V Owner's Manual
Communications Software
You will need data communications (datacomm), fax communications software and, for the MultiModemZDX, an appropriate application software package to access the Personal Voice-Mail features of the
MultiModemZDXV. The MultiModemZDX is also compatible with datacomm and fax programs you may already own.
Product Features
General features include:
• Compliance with major ITU-T, TIA, and EIA international standards to ensure compatibility with other modems.
• Distinguishes data, fax, or voice calls using DTMF and tone detection with software packages supporting these features.
• Caller ID to identify your caller’s phone number (available on U.S.
products).
Data
• Supports the enhanced ITU-T V.34 standard, with data transmission speeds to 33.6K bps, while also maintaining compatibility with lowerspeed modems.
• Supports asynchronous data rates at 33.6K, 31.2K, 28.8K, 26.4K,
24K, 21.6K, 19.2K, 16.8K, 14.4K, 12K, 9600, 4800, 2400, 1200, and
300 bps.
• Automatic fallback to slower speeds in noisy line conditions, and fallforward to faster speeds as conditions improve.
• ITU V.42 LAP-M and MNP Class 3 and 4 error correction.
• ITU V.42bis (4-to-1) and MNP 5 (2-to-1) data compression.
• Automatic disabling of compression when transferring alreadycompressed files.
• Autodial, redial, pulse (rotary) and touch-tone dial.
• Dial tone and busy signal detection for reliable call-progress detection.
• Compatibility with the standard AT command set used by most communication programs.
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1 - Introduction and Description
Fax
• Supports V.17, Group 3 fax communication standards, allowing it to communicate with other fax modems as well as with fax machines.
• Responds to Class 1 fax commands, enabling it to exchange editable and encrypted faxes with other Windows 95 computers.
• Sends and receives faxes from your computer at 14,400 bps, 9600 bps, 7200 bps, 4800 bps, 2400 bps, or 300 bps.
Voice (Model MT3334ZDXV only)
• Full-duplex speakerphone support with adjustable speaker volume control. Can record and play back answering machine messages using optional microphone and speaker.
• Remote/local telephone answering machine (TAM) capabilities include voice mail control, record/playback, and call screening.
• Supports the TIA/EIA IS-101 AT+V voice command set.
Note: For more information on +V commands supported by the
MT3334ZDXV refer to Multi-Tech's Voice +V Commands Developer's Kit
(P/N 82039200). This document is available upon request.
About this Manual
This manual is divided into five chapters and three appendices. The information contained in each chapter and appendix is as follows:
Chapter 1 - Introduction and Description
Chapter 1 begins with a short product introduction and description; followed by a guide (which you are now reading) to the use of this manual.
Chapter 2 - Installation and Connection
Chapter 2 documents the procedure for connecting the MultiModemZDX to your computer and to the phone line. Details are given, supported by illustrations as a guide for installing your MultiModemZDX to the point of operation. There is also a Troubleshooting section in the event your
MultiModemZDX is not operating properly.
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MT3334ZDX/V Owner's Manual
Chapter 3 - AT Commands, S-Registers and Result Codes
Chapter 3 documents default and option ATcommands, S-Registers and
Result Codes supported by the MultiModemZDX.
Chapter 4 - Testing Your Modem
Chapter 4 covers the modem's built-in test features. These are: Poweron Self Test, Local Analog Loopback, Digital Loopback and Remote
Digital Loopback Tests. We have included a description of each test and how to use each test procedure.
Chapter 5 - Service, Warranty & Technical Support
Chapter 5 provides instructions for getting modems serviced at the factory, statements on your ten-year warranty, information about our user
Bulletin Board Service ( BBS) and receiving technical support via the
CompuServe and Internet forums.
Appendices
Appendix A - Technical Specifications
Appendix B - Tone Dial Frequencies
Appendix C - Regulatory Information
8
2 - Installation
Chapter 2 - Installation
Introduction
This chapter will provide you with the basic steps necessary to install and configure your MultiModemZDX. Before attempting any procedure, be sure to read the safety warnings in the following section.
Safety Warnings
1.
Never install telephone wiring during a lightning storm.
2.
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
3.
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
4.
Use caution when installing or modifying telephone lines.
5.
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electrical shock from lightning.
6.
Do not use the telephone to report a gas leak in the vicinity of the leak.
Installation Process
The installation of the MultiModemZDX consists of making the physical connections necessary to render the modem functional with your computer.
This includes making the proper serial, phone line, and power connections.
POWER RS232 PHONE LINE
DB25 to Computer
RJ11/PSTN Connection
RJ11/Phone Connection
Power Connector
(to Transformer)
Figure 2-1. MultiModemZDX Connections
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MT3334ZDX/V Owner's Manual
To install your MultiModemZDX:
1.
Attach the MultiModemZDX to dial-up phone lines using the RJ11 telephone cord. This is accomplished by plugging one end of the cable provided with the MultiModemZDX into the telephone jack in your home or office; and plugging the other end into the LINE jack on the MultiModemZDX.
The LINE jack is not interchangeable with the PHONE jack on the
MultiModemZDX. Do not plug the telephone into the LINE jack or the line cable into the PHONE jack.
2.
Attach your MultiModemZDX to your PC or terminal with an RS232
(or V.24) cable (see Figure 2-1). Be sure to tighten the mounting screws on the DB connectors.
3.
Connect your telephone set to phone jack via RJ11 cable.
4.
Attach your MultiModemZDX to the AC Power transformer and plugging the AC connector into a live AC outlet.
5.
Turn on power by flipping the "ON/OFF" switch on the side of the
MultiModemZDX to the "ON" position.
Note: Use only the power supply provided with the MultiModemZDX.
Use of any other power supply will void the warranty and could damage the modem.
6.
Make sure modem and computer/terminal serial port baud rates are adjusted. (Note that several programs can check this for you. If you have MS-DOS 5.0 or higher, a program called MSD.EXE [Microsoft
Diagnostics] is in your DOS directory. Typing MSD at the DOS prompt brings up a screen that provides a variety of information about your computer. Select COM ports and it lists information about your com port, e.g., UART Type, Address, and IRQ, to name a few. Once you know your serial port's UART type, you can set your communications's software appropriately.)
7.
Proceed to Chapter 3 of this manual, or to your data communications software manual.
10
✳ #
Figure 2-2. MultiModemZDX Connections
2 - Installation
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MT3334ZDX/V Owner's Manual
LED Indicators
The MultiModemZDX has ten LED indicators (Figure 2-3) to report status
(such as verifying proper installation) and line activity (such as monitoring the status of a connection).
12
Figure 2-3. Front Panel
TD
Transmit Data. The TD LED flashes when data is being transmitted (on for a space, off for a mark). Signals on this circuit are generated by the terminal and transferred to the transmitter of the MultiModemZDX. The transmitting terminal should hold this line in the marking state when no data is being transmitted, including intervals between characters or words. The TRANSMIT (TD) LED indicates the status of this circuit.
RD
Receive Data. The RD LED flashes when data is being received (on for a space, off for a mark). Data signals received from the remote
MultiModemZDX are presented on this line. When no carrier signal is being received (pin 8 negative), this line will be forced into a marking condition. The RECEIVE (RD) LED indicates the status of this signal.
2 - Installation
CD
Carrier Detect. This LED lights when a valid carrier signal from another modem is detected.
33
V.34. This LED is lit when the modem is connected in V.34 mode at
33,600 bps.
14
V.32
bis. This LED is lit when the modem is connected in V.32bis mode.
Note at speeds lower than a V.32
bis connection, the MultiModemZDX speed LEDs remain unlit.
96
9600bps. This LED is lit when the modem is connected at 9600 bps.
OH
Off Hook. The condition of Off Hook indicates to the central office that the
MultiModemZDX wants the phone line to do something (i.e., dial or answer a call). This LED is also lit when the MultiModemZDX has achieved on-line status.
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MT3334ZDX/V Owner's Manual
TR
Terminal Ready. When TR is lit, the MultiModemZDX can answer an incoming call. This signal (TR or DTR) provides a means for the terminal or computer to control the MultiModemZDX's connection to the communications channel. A high DTR signal is required by the
MultiModemZDX to be able to communicate. The state of the TR LED matches that of the DTR circuit on pin 20 of the RS232/V.24 interface.
EC
Error Correction. This LED is lit when the modem is set for V.42 error correction, and flashes on and off when data compression is activated.
FX
Fax. This LED is lit when the modem is connected in Fax mode.
Is Your MultiModemZDX Ready for Use?
As soon as you have connected power to the modem, if you’re an experienced modem user, you may simply want to check your modem’s settings for data compression, error correction, and so on. You may find that you can get moving quite quickly if you just issue the AT&V<cr> command. This command lists how your modem is currently configured.
If you come across a setting you’re unsure of, refer to Chapter 3 of this manual for AT command and S-Register explanations and defaults. If you’re a novice, please continue to the next sections of this chapter.
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2 - Installation
Operating Your MultiModemZDX
You control your MultiModemZDX by issuing AT commands and setting
S-Registers. Right now your MultiModemZDX is set up for the most typical user application, that is, as a traditional modem set to make a dial-up call to a remote installation where the call is answered automatically; therefore, you shouldn’t need to change the current default configuration. (If however, you know that your application does not follow this profile, please refer to Chapter 3 for AT Commands and S-Registers.)
In operating your MultiModemZDX it is likely that you will use your data communications software to either:
• enter “terminal” mode, where you can “speak most directly” to the modem by issuing AT commands, or to
• launch a datacomm session through a set of modem configurations which you select and then associate with a target telephone number.
Once you have created, saved, and named this set of information according to your connection needs and your datacomm software’s conventions, the software then simplifies your dialing because you needn’t reconfigure your modem, nor run the risk of mistakenly keying-in incorrect information.
Either way, you need to understand that an AT command is the method by which your modem is controlled, and must therefore prefix nearly all commands. AT stands for attention, and alerts the modem that a command follows. You may enter these commands with either upper- or lower-case characters. Entering AT automatically sets the modem’s serial baud rate to match your computer’s and also sets the modem’s parity. It also clears the modem’s command buffer. Once you’re in terminal mode, enter AT followed by <CR> to check whether your modem is operational. If everything’s fine, your modem will respond OK.
Simple Operations
You can dial by using the ATD command and the phone number of the modem with which you wish to connect, e.g., ATD6127853500. Your modem will dial the number; a “scrambling” noise is heard as the modem negotiates the kind of connection it can make, and once the modems have settled on a common connection, a connect message on your computer’s video is displayed. To hang up a call, enter +++ATH<CR>. Your modem will return on hook, just as if you had returned a phone’s handset to its cradle. Your video now displays OK, signifying that your modem is ready for your next command.
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MT3334ZDX/V Owner's Manual
Remote Configuration
The Remote Configuration feature is a network management tool that allows you to configure modems remotely. This means you could configure modems anywhere in your network from one location without having to visit the sites or rely on remote users to follow your instructions.
You can download new parameters and implement new features.
S-Register S9 has been set up to contain the special Remote Configuration escape code. When calling a Remote Configuration equipped modem, you enter the proper Remote Escape Code entering your Set-up Password.
You can then execute AT commands as if you were connected locally. If you set S-Register S9 to 0 (zero), Remote Configuration is disabled.
Setting S9 to a value other than zero, defines the escape key. For example, if S9 = 37, the % (percent sign) would be the escape key. The
S9 value can be stored with the &W0 command.
To store the remote configuration password, type the following:
AT#S=password<RETURN>
The password can be from 1 to 8 characters in length and is case sensitive. This password can be changed in command mode but not in remote configuration. If no user password has been stored, the default password is "MTSMODEM". If a user password has been set, the default password is disabled.
To enter Remote Configuration from online mode, enter the value in S9 three times, the type ATpassword <RETURN>. For example:
If S9 = 37, enter: %%%ATpassword<RETURN> and you will be in command mode.
Note: If an AT&F (load factory defaults) command is entered, or if an ATZ
(modem reset) command is entered and S9 has not been saved, S9 will return to zero. However, if either of these two commands are entered, the password will remain saved.
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2 - Installation
Software Configuration
Communications software must be configured to work with the
MultiModemZDX, your computer, and the remote system it is calling.
Fortunately, most communications programs make the process easy by providing a default initialization string to your modem as well as defaults for most of the other required parameters.
Some software programs allow you to select your modem type from a menu. By this method, initialization strings that correspond to a particular modem type can be selected to operate optimally with the software it is utilizing.
Figure 2-4. MultiModemZDX Initialization Setup
Other software programs require you enter an initialization string in the software modem setup screen. If this is the requirement in your software application, enter the following command string to initialize your modem:
AT&F<cr>
This setting configures your modem to operate optimally with the software it is utilizing.
Note: Refer to your respective software manual for further information on your communications software.
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MT3334ZDX/V Owner's Manual
Hardware/Software Confirmation
To confirm that your modem (hardware) and communications package
(software) is working properly:
1.
Go into terminal mode in your communications package.
2.
To determine if your computer and modem are communicating properly, Enter: AT<CR> At this point your video monitor should display OK. If the characters you typed do not appear or if double characters appear, see the troubleshooting section of this chapter.
3.
To confirm how your MultiModemZDX is configured, enter AT&V<cr>.
What is then reported is how the MultiModemZDX is currently configured.
Figure 2-5. MultiModemZDX Configuration Confirmation
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2 - Installation
Troubleshooting
Your MultiModemZDX was thoroughly tested at the factory before it was shipped. If you are unable to make a successful connection or if you experience data loss or garbled characters during your connection, it is possible that the modem is defective. However, it is more likely that the source of your problem lies elsewhere. Problems you may encounter include:
• None of the LEDs light when the modem is on;
• The modem does not respond to commands;
• The modem dials but is unable to make a connection;
• The modem disconnects while online;
• The modem cannot connect when answering;
• Slow file transfer;
• Losing data; or
• Garbage characters on the monitor.
None of the LEDs Light When the Modem Is On
When you turn on the MultiModemZDX, the LED indicators on the front panel should flash briefly as the modem runs a self-test. If the LEDs remain off, the modem is probably not receiving power.
• Make sure the modem’s power switch is on, especially if you normally turn on the modem by turning on a power strip.
• If the power supply is plugged into a power strip, make sure the power strip is plugged in, and its power switch is on.
• Make sure the power supply module is firmly connected to the modem and to the wall outlet or power strip.
• If the power strip is on and the modem switch is on, try moving the modem power supply to another outlet on the power strip.
• Test 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 Tech Support for assistance.
Note: Do not under any circumstances replace the power supply module with one designed for another product, as it may damage the modem and void your warranty.
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MT3334ZDX/V Owner's Manual
The Modem Does Not Respond to Commands
• Make sure the modem is plugged in and turned on. (See “None of the
LEDs Light When the Modem Is On.”)
• Make sure you are issuing the modem commands from the data communications software, either manually in terminal mode or automatically once you have configured the software. (You cannot send commands to the modem from the DOS prompt.)
• Make sure you are in terminal mode in your data communications program, then type AT and press ENTER. If you get an OK response, your connections are good and the problem likely is in your phonebook entry or session settings.
• Try resetting your modem by turning it off and on. Make sure there is a reset command (&F) in your initialization string, or your modem may not initialize correctly.
• If you don’t get an OK, the problem may still be in the communications software. Make sure you have done whatever is necessary in your software to make a port connection. Not all communications programs connect to the COM port automatically. Some connect when the software loads and remain connected until the program terminates.
Others can disconnect without exiting the program. Many communications software packages also allow multiple terminals to be open, but only one can access the modem at a time. If your package reports that it cannot make a connection, yet the modem’s
TR indicator is on, click on the Window menu to see if more than one terminal is open. The modem’s TR indicator shows that the software has made a connection with the modem through the COM port.
• Your communications software settings may not match the physical port the modem is connected to. The serial cable may be plugged into the wrong connector—check your computer documentation to make sure. Or you may have selected a COM port in your software other than the one the modem is physically connected to—compare the settings in your software to the physical connection.
• If the modem is on, the cable is plugged into the correct port, the communications software is configured correctly, and you still don’t get an OK, the fault may be in the serial cable. Make sure it is firmly connected at both ends.
• Is this the first time you have used the cable? If so, it may not be correct. Check the cable description on the packaging to make sure the cable is the right one for your computer.
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2 - Installation
• Peripheral expansion cards, such as bus mouse and sound cards, may include a serial port preconfigured as COM1 or COM2. The extra serial port, or the card itself, may use the same COM port, memory address, or interrupt request (IRQ) as your communications port. Be sure to disable any unused ports.
To look for address or IRQ conflicts if you use Windows 3.1x, select
File, Run in Program Manager, type MSD, and press ENTER. 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. If you find an address conflict, change the address of one of the conflicting devices.
To change a port address or IRQ in Windows 3.1x, double-click the
Control Panel icon, then the Ports icon. Click on the port you want to change, click Settings, click Advanced, and select the new port address and/or interrupt. If you wish to use COM3 or COM4, note that
COM3 shares an IRQ with COM1, as does COM4 with COM2, so you should change their IRQs to unused ones, if possible.
If you use Windows 95, right-click on My Computer, select Properties from the menu, click on the Device Manager tab, double-click on
Ports, then double-click on the Communications Port your modem is connected to. In the port’s Properties sheet, click on the Resources tab to see the port’s Input/Output range and Interrupt Request. If another device is using the same address range or IRQ, it will appear in the Conflicting Device List. Uncheck Use Automatic Settings to change the port’s settings so they do not conflict with the other device, or select the port the conflicting device is on and change it instead. If you need to open your computer to change switches or jumpers on the conflicting device; refer to the device’s documentation.
• The serial port may be defective. If you have another serial port, install the modem on it, change the COM port setting in your software, and try again.
• The modem may be defective. If you have another Multi-Tech modem, try swapping modems. If the problem goes away, the first modem is possibly defective. Call Tech Support for assistance (see
Chapter 5).
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MT3334ZDX/V Owner's Manual
The Modem Dials But Cannot Make Connection
There can be several reasons the MultiModemZDX fails to make a connection. Possibilities include
• lack of a physical connection to the telephone line.
• a wrong dial tone.
• a busy signal.
• a wrong number.
• no modem at the other end.
• a faulty modem, computer, or software at the other end.
• incompatibility between modems.
You can narrow the list of possibilities by using extended result codes. To enable them, enter ATV1X4 and press ENTER while in terminal mode, or include V1X4 in the modem’s initialization string. When you dial again, the modem will report the call’s progress.
• If the modem reports NO DIALTONE, check that the modem’s telephone line cable is connected to both the modem’s LINE jack (not the PHONE jack) and the telephone wall jack. If the cable looks secure, try replacing it. If that doesn’t work, the problem may be in your building’s telephone installation. To test the building installation, plug a telephone into your modem’s telephone wall jack and listen for a dial tone. If you hear a dial tone, your modem may be installed behind a company phone system (PBX) with an internal dial tone that sounds different from the normal dial tone. In that case, the modem may not recognize the dial tone and may treat it as an error. Check your PBX manual to see if you can change the internal dial tone; if you can’t, change your modem’s initialization string to replace X4 with X3, which will cause the modem to ignore dial tones.
• If the modem reports BUSY, the other number may be busy, in which case you should try again later, or it may indicate that you have failed to add a 9, prefix to the phone number if you must dial 9 for an outside line.
If you must dial 9 to get an outside line, the easiest way to dial it automatically is to include it in the modem’s dial prefix, e.g., ATDT9,.
Note the comma, which inserts a pause before the number is dialed.
By inserting 9, into the dial prefix, you do not have to include it in each directory entry.
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2 - Installation
To change the dial prefix in your communications package, select
Setup, Modem; then select the modem type you are using, and type the new prefix in the Dial Prefix box. To change the dial prefix in
Windows Terminal, select Settings, Modem Commands. To change it in Windows 95 HyperTerminal, select Call, Connect from the menu bar, click Dialing Properties, and type 9 in the local and long distance boxes in How I Dial from This Location.
• If the modem reports NO ANSWER, the other system has failed to go off-hook, or you might have dialed a wrong number. Check the number.
• If the modem reports NO CARRIER, the phone was answered at the other end, but no connection was made. You might have dialed a wrong number, and a person answered instead of a computer, or you might have dialed the correct number but the other computer or software was turned off or faulty. Check the number and try again, or try calling another system to make sure your modem is working. Also, try calling the number on your telephone. If you hear harsh sounds, then another modem is answering the call, and the modems may be having problems negotiating because of modem incompatibilities or line noise. Try connecting at a lower speed.
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MT3334ZDX/V Owner's Manual
The Modem Disconnects While Online
• If you have call waiting on the same phone line as your modem, it may interrupt your connection when someone tries to call you. If you have call waiting, disable it before each call. In most telephone areas, you can disable call waiting by preceding the telephone number with *70
(check with your local telephone company).
You can automatically disable call waiting by including the disabling code in the modem’s dial prefix (e.g., ATDT*70,—note the comma, which inserts a pause before the number is dialed). To change the dial prefix in your communications package, select Setup, Modem; then select the modem type you are using, and type the new prefix in the Dial Prefix box. To change the dial prefix in Windows Terminal, select Settings, Modem Commands. To change it in Windows 95
HyperTerminal, select Call, Connect from the menu bar, click Dialing
Properties, check This Location has Call Waiting, and select the correct code for your phone service.
• If you have extension phones on the same line as your modem, you or someone else can interrupt the connection by picking up another phone. If this is a frequent problem, disconnect the extension phones before using the modem, or install another phone line especially for the modem.
• Check for loose connections between the modem and the computer, the telephone jack, and AC power.
• You may have had a poor connection because of line conditions or the problem may have originated on the other end of the line. Try again.
• If you were online with a BBS, it may have hung up on you because of lack of activity on your part or because you exceeded your time limit for the day. Try again.
The Modem Cannot Connect When Answering
• Auto-answer may be disabled. Turn on auto-answer in your datacomm program or send the command ATS0=1 to your modem in terminal mode.
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2 - Installation
Slow File Transfer
• You may have an older UART. For best throughput, install a 16550AFN
UART or a Multi-Tech ISI serial port card.
• If you are running under Windows 3.1 and have a 16550AFN UART, you must replace the Windows serial driver, COMM.DRV, to take full advantage of the UART’s speed.
• If you are using a slow transfer protocol, such as Xmodem or Kermit, try Zmodem or Ymodem/G instead.
• Is your line noisy? If there is static on your line, the modem has to resend many blocks of data to insure accuracy. You must have a clean line for maximum speed.
• Are you downloading a compressed file with MNP 5 hardware compression enabled? Since hardware data compression cannot compress a file already compressed by an archiving program, the transfer can be marginally slower with data compression enabled.
• Try entering the &V (View Parameters) command, making a screen print of the diagnostics listing, and checking for parameters that may be unacceptable.
Losing Data
• 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 may not be reliable at serial port speeds over 9600 bps or 19,200 bps. Turn off data compression, reset your serial port speed to a lower rate, or replace your serial port with a faster one.
• Make sure the flow control method you selected in software matches the method selected in the modem.
• If you are running under Windows 3.1 and have a 16550AFN UART, you may need to turn on the 16550’s data buffers and/or replace the
Windows serial driver, COMM.DRV.
• Try entering the &V (View Parameters) command, making a screen print of the diagnostics listing, and checking for parameters that may be unacceptable.
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MT3334ZDX/V Owner's Manual
Garbage Characters on the Monitor
• Your computer and the remote computer may be set to different word lengths, stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your communications software.
• You may be experiencing line noise. Enable error correction, if it is disabled, or hang up and call again; you may get a better connection.
• 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 &V (View Parameters) command, making a screen print of the diagnostics listing, and checking for parameters that may be unacceptable.
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3 - AT Commands, S-Registers and Result Codes
Chapter 3 - AT Commands, S-Registers and
Result Codes
Command Summary
This section summarizes your modem’s AT commands, S-Registers and
Result codes.
Attention Code Command: AT
Values:
Description: n/a
The attention code precedes all command lines except A/ and the escape sequence.
Command: ENTER or Carriage Return <CR> Key
Values: n/a
Description: Press the ENTER or Carriage Return key to execute most commands.
Command: A
Values: n/a
Description:
Command: A/
Values: n/a
Description:
Answer
Answer an incoming call before the final ring.
Repeat Last Command
Repeat the last command string. Do not precede this command with AT. Do not press ENTER to execute.
Command: B n
Values:
Communication Standard Setting n = 0 or 1
Default: 1
Description: B0 Select ITU-T V.22 mode when modem is at 1200 bps.
B1
Command: C n
Values:
Default: n = 1
1
Description: C1
Select Bell 212A when modem is at 1200 bps.
Carrier Control
Normal transmit carrier switching (included for backward compatibility with some software).
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MT3334ZDX/V Owner's Manual
Command: D s
Values:
Dial s = dial string (phone number and dial modifiers)
Default: none
Description: Dial telephone number s, where s may be up to 40 characters long and include the 0–9, *, #, A, B, C, and D characters, and the L, P, T, V, W, S, comma
(,), semicolon (;), !, @, ^ and $ dial string modifiers.
;
,
$
^
P
T
V
!
Dial string modifiers:
L
W
S
@
Redial last number. (Must be placed immediately after ATD.)
Pulse-dial following numbers in command .
Tone-dial following numbers in command (default).
Switch to speakerphone mode and dial the following number. Use ATH command to hang up.
Wait for a new dial tone before continuing to dial.
(X2, X4, X5, X6, or X7 must be selected.)
Dial a telephone number previously stored using the &Zn=x command (see &Zn=x command for further information). The range of n is 0-3.
Pause during dialing for time set in register S8.
Return to command mode after dialing. (Place at end of dial string.)
Hook flash. Causes the modem to go on-hook for one-half second, then off-hook again.
Wait for quiet answer. Causes modem to wait for a ringback, then 5 seconds of silence, before processing next part of command. If silence is not detected, the modem returns a NO ANSWER code.
Calling Card “Bong” Detection
Disable data calling tone transmission.
Command: E n
Values:
Echo Command Mode Characters n = 0 or 1
Default: 1
Description: E0 Do not echo keyboard characters to the computer.
E1 Do echo keyboard characters to the computer.
28
Command: F n
Values: n = 1
Default: 1
Description: F0
F1
3 - AT Commands, S-Registers and Result Codes
Echo Online Data Characters
Enable online data character echo. (Not supported.)
Disable online data character echo (included for backward compatibility with some software).
Command: H n
Values:
On-Hook/Off-Hook Control n = 0 or 1
Default: 0
Description: H0 Go on-hook to hang up.
H1 Go off-hook to make the phone line busy.
Command: I n
Values: n = 0–4
Default: None
Description: I0
Information Request
I1
I2
I3
I4
Display default speed and controller firmware version.
Calculate and display ROM checksum (e.g.,
“12AB”).
Check ROM and verify the checksum, displaying
OK or ERROR.
Display default speed and controller firmware version.
Display firmware version for data pump (e.g., “94”).
Command: L n
Values:
Monitor Speaker Volume n = 0, 1, 2, or 3
Default: 2
Description: L0
L1
L2
L3
Select low volume.
Select low volume.
Select medium volume.
Select high volume.
Command: M n
Values:
Monitor Speaker Mode n = 0, 1, 2, or 3
Default: 1
Description: M0
M1
M2
Speaker always off.
Speaker on until carrier signal detected.
Speaker always on when modem is off-hook.
M3 Speaker on until carrier is detected, except while dialing.
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MT3334ZDX/V Owner's Manual
Command: N n
Values:
Modulation Handshake n = 0 or 1
Default: 1
Description: N0 Modem performs handshake only at communication standard specified by S37 and the
B command.
N1 Modem begins handshake at communication standard specified by S37 and the B command.
During handshake, fallback to a lower speed can occur.
Command: O n
Values: 0 or 1
Default: None
Description: O0
Return Online to Data Mode
O1
Exit online command mode and return to data mode (see +++AT<CR> Escape Sequence command).
Issue a retrain and return to online data mode.
Command: Q n
Values:
Enable/Disable Result Codes n = 0 or 1
Default: 0
Description: Q0 Enable Result Codes.
Q1 Disable Result Codes.
Command: S r=n Set Register Value
Values: r = S-register number; n varies
Default: None
Description: Set value of register S r to value of n, where n is entered in decimal format.
Command: S r?
Values:
Read Register Value r = S-register number
Default: None
Description: Read value of register digit decimal form.
Sr and display value in 3-
Command: V n
Values:
Default:
Terse/Verbose Result Code Format n = 0 or 1
1
Description: V0 Displays Result Codes as digits (terse response).
V1 Displays Result Codes as words (verbose response).
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3 - AT Commands, S-Registers and Result Codes
Command: X n
Values: n = 0–4
Default: 4
Description: X0
Result Code Selection
X1
X2
X3
X4
Basic Result Codes ( e.g., CONNECT); does not look for dial tone or busy signal.
Extended Result Codes ( CONNECT 33600 V42bis, etc.); does not look for dial tone or busy signal.
Extended Result Codes with NO DIALTONE; does not look for busy signal.
Extended Result Codes with BUSY; does not look for dial tone.
Extended Result Codes with NO DIALTONE and
BUSY.
Command: Y n
Values: n = 0
Default: 0
Description: Y0
Long Space Disconnect
Y1
Disable sending or responding to long space break signal on disconnect.
Enable sending or responding to long space break signal on disconnect. (Not supported.)
Command: Z n
Values:
Modem Reset n = 0 or 1
Default: None
Description: Z0 Reset modem to profile saved by the last command.
&W
Z1 Same as Z0.
Command: &C n
Values:
Data Carrier Detect (DCD) Control n = 0 or 1
Default: 1
Description: &C0 Ignores the state of carrier on the remote modem and DCD circuit is always on.
&C1 DCD turns on when the remote modem’s carrier signal is detected and DCD is off when the carrier signal is not detected.
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MT3334ZDX/V Owner's Manual
Command: &D n
Values:
Data Terminal Ready (DTR) Control n = 0, 1, 2, or 3
Default: 2
Description: &D0 Modem ignores the true status of the DTR signal and responds as if it is always on.
&D1 When DTR drops while in online data mode, the modem enters command mode, issues an OK, and remains connected.
&D2
&D3
When DTR drops while in online data mode, the modem hangs up.
When DTR drops, the modem hangs up and resets as if an ATZ command were issued.
Command: &F n
Values: n = 0
Default: None
Description: &F0
Command: &G n
Values:
V.22bis Guard Tone Control n = 0, 1, or 2
Default: 0
Description: &G0 Disable guard tone.
&G1 Enable 550 Hz guard tone.
&G2 Enable 1800 Hz guard tone.
Command: &J n
Values: n = 0
Default: 0
Description: &J0
&J1
Load Factory Default Settings
Load factory settings as active configuration.
Auxiliary Relay Control
The auxiliary relay is never closed.
Not supported—responds ERROR.
Command: &K n
Values:
Flow Control Selection n = 0, 3, or 4
Defaults: 3
Description: &K0 Flow control disabled.
&K3
&K4
Enable CTS/RTS hardware flow control.
Enable XON/XOFF software flow control.
Command: &M n
Values: n = 0
Defaults: 0
Description: &M0
Communications Mode
Asynchronous mode.
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3 - AT Commands, S-Registers and Result Codes
Command: &Q n
Values:
Asynchronous Communications Mode n = 0, 5, or 6
Defaults: 5
Description: &Q0 Asynchronous with data buffering. Same as \N0.
&Q5
&Q6
Error control with data buffering. Same as \N3.
Asynchronous with data buffering. Same as \N0.
Command: &S n
Values:
Data Set Ready (DSR) Control n = 0 or 1
Default: 0
Description: &S0 Force DSR high (on).
&S1 Let DSR follow CD.
Command: &T n
Values:
Test Commands n = 0, 1, 3 or 6
Default: None
Description: &T0 Abort. Stop any test in progress.
&T1 Local analog loop test.
&T3
&T6
Local digital loopback test.
Remote digital loopback test.
Command: &V
Values: n/a
Description:
Command: &W n Store Current Configuration
Values:
Default: n = 0
None
Description: &W0 Store active modem settings in NVRAM; load them at power-on or following the ATZ command instead of loading the factory defaults from ROM.
Command: &Y n
Values:
Default: n = 0
0
Description: &Y0
View Current Configuration
Displays the active modem settings.
Select Stored Configuration for Hard Reset
Select stored configuration 0 on power-up. (For backward compatibility with some software.)
Command: &Z n=x Store Telephone Number
Values: n = 0, 1, 2 or 3
Default:
Description: x = Dialing string
None
Stores telephone dial string x in memory location n. Dial the stored number using the command
ATDS=n.
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MT3334ZDX/V Owner's Manual
Command:
Values:
Default:
\K
5 n n = 5
Description: \K5
Set Break Control
Modem sends break signal received from the DTE to the remote modem.
Command: \N n
Values: n = 0–5
Default: 3
Description: \N0
\N1
\N2
\N3
\N4
\N5
Error Correction Mode Selection
Non-error correction mode with data buffering
(same as &Q6).
Direct mode.
MNP reliable mode.
V.42/MNP auto-reliable mode.
V.42 reliable mode.
V.42, MNP, or non-error correction (same as \N3).
Command: \V n
Values:
Protocol Result Code n = 0 or 1
Default: 1
Description: \V0 Disable protocol Result Code appended to DCE speed.
\V1 Enable protocol Result Code appended to DCE speed.
Command: %C n Data Compression Control
Values: n = 0 or 1
Default: 1
Description: %C0 Disable V.42bis/MNP 5 data compression.
%C1 Enable V.42bis/MNP 5 data compression.
Command: $D
Values:
Default:
DTR Dialing n = 0 or 1
0
Description: $D0 Disables DTR Dialing.
$D1 Enables DTR Dialing.
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3 - AT Commands, S-Registers and Result Codes
Command: $MB
Values:
Default:
Modem Baud Rate n = speed
33600
Description: $MB75 Selects CCITT V.23 mode.
$MB300
$MB1200
Selects 300 bps on-line.
Selects 1200 bps on-line.
$MB2400
$MB4800
$MB9600
$MB14400
Selects 2400 bps on-line.
Selects 4800 bps on-line.
Selects 9600 bps on-line.
Selects 14400 bps on-line.
$MB19200
$MB28800
$MB33600
Selects 19200 bps on-line.
Selects 28800 bps on-line.
Selects 33600 bps on-line.
Command: $SB
Values:
Default:
Serial Port Baud Rate n = speed
115200
Description: $SB300 Selects 300 bps at serial port.
$SB1200
$SB2400
Selects 1200 bps at serial port.
Selects 2400 bps at serial port.
$SB4800
$SB9600
$SB19200
$SB38400
$SB57600
$SB115200
Selects 4800 bps at serial port.
Selects 9600 bps at serial port.
Selects 19200 bps at serial port.
Selects 38400 bps at serial port.
Selects 57600 bps at serial port.
Selects 115200 bps at serial port.
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MT3334ZDX/V Owner's Manual
S-Registers
Certain Command Mode configurations are stored in memory registers called, S-Registers. The S command is used to assign a value to, and to read the current value of an S-Register. To assign a value to an S-
Register, enter the letter S, followed by the S-Register number and an equals sign ( =). To read an S-Register value, enter the letter S followed by the S-Register number and a question mark ( ?), then hit RETURN. To verify that the S-Register value was entered correctly, enter for example,
ATS8? and hit RETURN. You should receive a response of the assigned value given to that S-Register.
Register:
Unit:
Range:
Default:
Description:
S0 rings
0, 1–255
0
Sets the number of rings before the modem answers. ATS0=0 disables auto-answer completely.
Register:
Unit:
Range:
Default:
Description:
S1 rings
0, 1–255
0
Counts the number of rings that have occurred.
Register:
Unit:
Range:
Default:
Description:
S2 decimal
0-127
128-255
43(+)
Sets ASCII code for the escape character. Values greater than 127 disable the escape sequence.
Register:
Unit:
Range:
Default:
Description:
S3 decimal
0-127
13(^M)
Sets ASCII code for the carriage return character.
Register:
Unit:
Range:
Default:
Description:
S4 decimal
0–127
10(^J)
Sets ASCII code for the line feed character.
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3 - AT Commands, S-Registers and Result Codes
Register:
Unit:
Range:
Default:
Description:
S5 decimal
0-32, 33-127
8(^H)
Sets ASCII code for the backspacecharacter.
Values greater than 32 disable the backspace character.
Register:
Unit:
Range:
Default:
Description:
S6 seconds
2-65
2
Sets the time the modem waits after it goes offhook before it begins to dial the telephone number.
Register:
Unit:
Range:
Default:
Description:
S7 seconds
1-255
50
Sets the time the modem waits for a carrier signal before aborting a call. Also sets the wait for silence time for the @ dial modifier.
Register:
Unit:
Range:
Default:
Description:
S8 seconds
0-65
2
Sets the length of a pause caused by a comma character in a dialing command.
Register:
Unit:
Range:
Default:
Description:
S9
ASCII
0-127
0
Defines Remote Configuration Escape Character.
Register:
Unit:
Range:
Default:
Description:
S10
100ms
1-254
20
Sets how long a carrier signal must be lost before the modem disconnects.
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MT3334ZDX/V Owner's Manual
Register:
Unit:
Range:
Default:
Description:
S11
1 ms
50-150
95
Sets spacing and duration of dialing tones.
Register:
Unit:
Range:
Default:
Description:
S28 decimal
0, 1-255
1
0 disables, 1–255 enables V.34 modulation.
Register:
Unit:
Range:
Default:
Description:
S30
1 minute
0-255
0
S30 specifies the length of time (in minutes) that the modem waits before disconnecting when no data is sent or received. This function is only applicable to buffer mode.
Register:
Unit:
Range:
Default:
Description:
S35 decimal
0-1
0
0 disables, 1 enables the V.25 data calling tone, which allows remote data/fax/voice discrimination.
Register:
Unit:
Range:
Default:
Description:
S36 decimal
{0,2}, {1,3}, {4,6}, {5,7}
NA
This register specifies the action to take in the event of negotiation failure when error control is selected. (See S48.)
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3 - AT Commands, S-Registers and Result Codes
Register:
Unit:
Range:
Default:
Description:
S37 decimal
0-19
0
Sets the maximum dial line rate.
0 = maximum modem speed
1 = reserved
2 = 1200/75 bps
3 = 300 bps
4 = reserved
5 = 1200 bps
6 = 2400 bps
7 = 4800 bps
8 = 7200 bps
9 = 9600 bps
10 = 12000 bps
11 = 14400 bps
12 = 16800 bps
13 = 19200 bps
14 = 21600 bps
15 = 24000 bps
16 = 26400 bps
17 = 28800 bps
18 = 31200 bps
19 = 33600 bps
Register:
Unit:
Range:
Default:
Description:
S42 decimal
0-1
1
For testing and debugging only. Enables/disables the V.32bis and V.22bis auto rate. Retrain and fallback are disabled in data mode. 0 = disable; 1
= enable.
Register:
Unit:
Range:
Default:
Description:
S43 decimal
0-1
1
For testing and debugging only. Enables/disables
V.32bis start-up auto mode operation. 0 = disable;
1 = enable.
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MT3334ZDX/V Owner's Manual
Register:
Unit:
Range:
Default:
Description:
S48 decimal
7 or 128
7
The following chart lists the S36 and S48 configuration settings necessary to negotiate certain types of connections.
Register:
Unit:
Range:
Default:
Description:
S89 seconds
0, 5-255
10
Sets the length of time in the off-line command mode before the modem goes into standby mode.
A value of zero prevents standby mode; a value of
1–4 sets the value to 5.
40
3 - AT Commands, S-Registers and Result Codes
Result Codes
When the modem receives an AT command from the terminal or PC, it tries to execute the command, then sends a status message to the PC or terminal which reports the "results" of the command (hence the name
"result codes"). The MultiModemZDX Command mode provides you with several responses, or “Result Codes”, that provide visual responses during Command mode operation. These Result Codes are displayed on your PC's video monitor.
Terse Verbose Description
12*
13*
14*
24*
25*
6
7
8
10*
11*
0
3
4
1
2
5*
58*
59*
60*
88
89
26*
40*
55*
56*
57*
90
OK
CONNECT
RING
NO CARRIER
ERROR
CONNECT 1200
NO DIALTONE
BUSY
NO ANSWER
CONNECT 2400
CONNECT 4800
CONNECT 9600
CONNECT 14400
CONNECT 19200
CONNECT 7200
CONNECT 12000
CONNECT 16800
CONNECT 300
CONNECT 21600
CONNECT 24000
CONNECT 26400
CONNECT 28800
CONNECT 31200
CONNECT 33600
DELAYED
BLACKLISTED
Command executed
Modem connected to line
Ring signal detected
Carrier signal lost or not detected
Invalid command
Connected at 1200 bps
No dial tone detected
Busy signal detected
No answer at remote end
Connected at 2400 bps
Connected at 4800 bps
Connected at 9600 bps
Connected at 14400 bps
Connected at 19200 bps
Connected at 7200 bps
Connected at 12000 bps
Connected at 16800 bps
Connected at 300 bps
Connected at 21600 bps
Connected at 24000 bps
Connected at 26400 bps
Connected at 28800 bps
Connected at 31200 bps
Connected at 33600 bps
Delay is in effect for the dialed number
Dialed number is blacklisted
BLACKLIST FULL Blacklist is full
* EC is added to these Result Codes when the extended Result Codes configuration option is enabled. EC is replaced by one of the following codes, depending on the type of error control connection: V42bis (V.42 error control [LAP-M] and V.42bis data compression); V42 (V.42
error control [LAP-M] only); MNP5 (MNP 4 error control and MNP 5 data compression); MNP4
(MNP 4 error control only); NoEC (No error control protocol).
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MT3334ZDX/V Owner's Manual
Chapter 4 - Modem Testing
Local Analog Loopback Test/V.54 Loop 3
In this test, data from your computer or terminal is sent to your modem's transmitter, converted into analog form, looped back to the receiver, converted into digital form and then received back at your monitor for verification. No connection to the phone line is required. See Figure 4-1.
42
Figure 4-1. Local Analog Loopback Test
The test procedure is as follows:
1.
Connect the modem to your computer. With your communication software, set the desired baud rate.
2.
Type AT&T1 and hit ENTER. This places your modem in Analog
Loopback mode, in the Originate mode. The modem is now out of the
Command mode and in a pseudo On-Line mode.
3.
Once you receive a connect message (if responses are enabled), enter data from your keyboard. For this test, typing multiple upper case "U" characters is a good way to send an alternating test pattern of ones and zeros.
4.
For a more complete test, you should also test the modem in Answer mode. To do this, you must “escape” from Originate mode by entering an Escape Sequence ( +++AT<CR>) . Then type AT&T1 and hit
ENTER to place the modem in Analog Loopback mode, in the Answer mode. Then repeat step 3.
5.
Your modem passes this test if the data entered from your keyboard are the same as the data received on your monitor. If different data is appearing on your monitor, your modem is probably causing the problem, although it could also be your computer. If your modem passes this test, but you are receiving errors while On-line, the remote modem or the phone line could be at fault.
4 - Testing Your Modem
Digital Loopback Test/V.54 Loop 2 (Local/Manual)
The Digital Loopback Test is an on-line test that loops data sent from one modem across the phone line to another modem, then back to the first modem. See Figure 4-2.
There are two ways to put a modem into Digital Loopback mode.
1. Locally or Manually, described in this section.
2. Remotely or Automatically, see next section.
Note: If you wish to abort any test in progress, enter AT&T0<CR>.
All loopback tests will operate at all speeds except 300 bps.
Disable error correction ( AT\N0&W0<CR>) before engaging in loopback tests.
In this test the local modem is placed in Digital Loopback mode. Data is entered and transmitted from the remote modem (which is not in digital loopback mode), sent across the phone line to the local modem and looped back to the remote modem.
The test procedure is as follows:
1.
Go into Terminal mode. Type AT and hit ENTER; you should get an
OK message.
2.
Dial the remote modem by entering the Dial command and the phone number, to establish On-line mode.
3.
Type the Escape Sequence ( +++AT<CR>) which brings your modem into Command mode, while still maintaining the pseudo On-line mode with the remote modem.
4.
Type AT&T3 from the local PC and hit ENTER. Once you receive an
OK message from your modem (if responses are enabled), the local modem is placed in Digital Loopback mode.
5.
Data is typed from the remote keyboard. For this test, typing multiple upper case "U" characters is a good way to send an alternating test pattern of ones and zeros. The data received by the local modem will enter its analog receiver, be converted to digital data, be reconverted into analog, and then looped through its transmitter back to the remote modem. Your modem passes this test if the data entered from the remote keyboard is the same as the data received on the remote monitor.
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MT3334ZDX/V Owner's Manual
Figure 4-2. Digital Loopback Test(local/manual)
6.
When testing is complete, you may end the test by typing an Escape
Sequence ( +++AT<CR>) to bring your modem into Command mode.
The modem should respond with an OK message. If you wish to stay
On-line with the remote modem for normal data transmission, type
ATO0 and hit ENTER. If you wish to terminate the call, type ATH0 and hit ENTER to hang up.
Digital Loopback Test/V.54 Loop 2 (Remote/Auto)
In this test, your modem must be On-line with another modem set up to respond to a request for Digital Loopback (note that some modems may not support Remote Loopback or may have this feature disabled). The test procedure is as follows:
1.
Go into Terminal mode. Type AT and hit ENTER; you should get an
OK message.
2.
Dial the remote modem by entering the Dial command and the phone number, to establish On-line mode. Note: The &T6 command must be set on the remote modem to run this test.
3.
Type the Escape Sequence ( +++AT<CR>) which brings your modem into Command mode, while still maintaining the connection with the remote modem.
4.
Type AT&T6 and hit ENTER. The local modem responds to this command by transmitting an unscrambled marking signal, which causes the remote modem to place itself in Digital Loopback mode.
Then the local modem exits Command mode and enters pseudo Online mode.
44
4 - Testing Your Modem
5.
Type data from your keyboard. For this test, typing multiple upper case "U" characters is a good way to send an alternating test pattern of ones and zeros. The data received by the remote modem will enter its analog receiver, be converted to digital data, be reconverted into analog, and then looped through its transmitter back to the local modem. Your modem passes this test if the data entered from the local keyboard is the same as the data received on your monitor.
Figure 4-3. Digital Loopback Test (remote/automatic)
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MT3334ZDX/V Owner's Manual
Chapter 5 - Service, Warranty and Tech Support
See New Warranty Policy - Multi-Tech Web Site
This chapter starts out with statements about your modem's 10-year warranty (limited to customers in the U.S., Canada, Mexico and the
United Kingdom). The next section, Tech Support, should be read carefully if you have questions or problems with your modem. It includes the technical support telephone numbers, space for recording your modem information, and an explanation of how to send in your modem should you require service.
Limited Warranty
Multi-Tech Systems, Inc. ( “MTS”) warrants that its products will be free from defects in material or workmanship for a period of ten years from the date of purchase, or if proof of purchase is not provided, ten years from date of shipment. MTS MAKES NO OTHER WARRANTY, EXPRESSED
OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY
DISCLAIMED. This warranty does not apply to any products which have been damaged by lightning storms, water, or power surges or which have been neglected, altered, abused, used for a purpose other than the one for which they were manufactured, repaired by the customer or any party without MTS’s written authorization, or used in any manner inconsistent with MTS’s instructions.
MTS’s entire obligation under this warranty shall be limited (at MTS’s option) to repair or replacement of any products which prove to be defective within the warranty period, or, at MTS’s option, issuance of a refund of the purchase price. Defective products must be returned by
Customer to MTS’s factory transportation prepaid.
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES AND
UNDER NO CIRCUMSTANCES WILL ITS LIABILITY EXCEED THE
PURCHASE PRICE FOR DEFECTIVE PRODUCTS.
46
5 - Service, Warranty and Tech Support
On-line Warranty Registration
To register your Multi-Tech product on-line, click on the following link: http://www.multitech.com/support/register.htm
Tech Support
Multi-Tech has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, call 1-800-972-2439. Please fill out the modem information (below), and have it available when you call.
If your modem requires service, the tech support specialist will guide you on how to send in your modem (see Section 5.3.2).
Recording Modem Information
Please fill in the following information on your Multi-Tech modem. This will help tech support in answering your questions.
Modem Model No.: _______________________________________
Modem Serial No.: _______________________________________
Modem Firmware Version: _________________________________
DataComm/FAX/Voice
Software Version: _______________________________________
COM Port #: ___________________________________________
The modem model and serial numbers are silkscreened on the bottom of your modem. The software versions are printed on the diskette labels.
Type ATI4 to display the modem firmware version. Please note the status of your modem before calling tech support. This screen messages, diagnostic test results, problems with a specific application, etc. Use the space below to note modem status:
_______________________________________________________
________________________________________________________
________________________________________________________
_________________________________________________________
________________________________________________________
_________________________________________________________
47
MT3334ZDX/V Owner's Manual
Service
If your tech support specialist decides that service is required, modems may be sent (freight prepaid) to our factory. Return shipping charges will be paid by Multi-Tech Systems (within North America).
Include the following with your modem:
• a description of the problem.
• return billing and return shipping addresses.
• contact name and phone number.
• check or purchase order number for payment if the modem is out of warranty. (The standard repair charge for this modem is $95. This price is valid at the time of this publication but could change in the future. Check with your technical support specialist.)
• if possible, note the name of the technical support specialist with whom you spoke.
If you need to inquire about the status of the returned product, be prepared to provide the serial number of the product sent (see previous section).
Send modems to this address:
MULTI-TECH SYSTEMS, INC.
2205 WOODALE DRIVE
MOUNDS VIEW, MINNESOTA 55112
ATTN: SERVICE OR REPAIRS
48
5 - Service, Warranty and Tech Support
About the Multi-Tech BBS - No Longer Available
Multi-Tech Systems maintains a Bulletin Board Service ( BBS) for its customers. The information available via the BBS includes: new product information, product upgrade data, problem solving tips, and a message service for you to leave questions for which you would like additional information. The phone number for the Multi-Tech BBS is (612) 785-3702 or (800) 392-2432 (U.S.A. and Canada).
The BBS can be accessed by any asynchronous modem operating at speeds of 33,600-1200 bps (V.34 and downward compatible) with a setting of word length of 8 bits, 1 stop bit, and no parity.
Logging on to the Multi-Tech BBS
To log on to the Multi-Tech BBS, perform the following steps:
1.
Set your communications program to 8-N-1.
2.
Dial to our BBS at (800) 392-2432 (USA and Canada) or (612) 785-
3702 (international and local).
3.
At the prompt, type your first name, last name, and password; then press RETURN. If you are a first time caller, the BBS will ask if your name is spelled correctly. If you answer yes, a questionnaire will appear. You must complete the questionnaire to use the BBS on your first call.
4.
Press RETURN until the Main Menu appears. From the Main Menu you have access to three main areas: the Files Menu, and Message
Menu, and Bulletins. For help on menu commands, type ?.
Downloading a File
If you know the file name:
1.
From the Maim Menu, type F to access the Files Menu, then type D.
2.
Enter the name of the file you wish to download from the BBS.
3.
If a password is required, enter the password.
4.
Answer Y or N to the automatic logoff question.
5.
Select a file transfer protocol by typing the indicated letter, such as
Z for Zmodem (the recommended protocol).
49
MT3334ZDX/V Owner's Manual
6.
If you select Zmodem, the transfer will begin automatically. If you select another protocol, you may have to initiate the transfer yourself.
(In most data communications programs, the PAGE DOWN key initiates the download.)
If you don’t know the file name:
1.
From the Main Menu, type F to access the Files Menu. For a list of file areas, type L twice. (If you do not type the second L, you will list all of the files on the BBS.)
2.
Mark the file areas you would like to examine by typing each file area’s list number and a RETURN.
3.
Enter L to list all the files in the selected file areas. Enter C to go forward in the file list and P to go back.
4.
Mark one or more files for download by entering M, the list numbers of the files, and a RETURN
5.
Enter D. You will see a list of the files you have marked. Enter E if you would like to edit the list; otherwise enter D again to start the download process.
6.
Select a file transfer protocol by typing the indicated letter, such as
Z for Zmodem (the recommended protocol).
7.
If you select Zmodem, the file will transfer automatically. If you select another protocol, you may have to initiate the transfer yourself. (In
MEWTERM and many other communications programs, the PAGE
DOWN key initiates the download.)
8.
When the download is complete, enter S to return to the File Menu.
Reading a Message
When you log on, the BBS will tell you if you have a personal message
(mail). At the prompt Would you like to read it now?, type R to read the message. This is the only point at which you can read your mail, since you cannot read any messages from the Message Menu.
Leaving a Message
The Multi-Tech BBS has no public discussion areas. To leave a personal message, select the Message Menu by typing M at the Main Menu. Type
E, then press RETURN to select the Sysop conference. Enter the name of the recipient (or “Sysop”), the subject, and the message text. Press
ESCAPE to finish, then type S to save the message and exit. To abort the message at any point, leave any of the fields blank and press RETURN.
50
5 - Service, Warranty and Tech Support
Bulletins
When you log on, the BBS will ask if you would like to view the bulletin menu. The bulletins are menu-driven; to read a bulletin, enter its number.
You can also access the bulletins by typing B at the Main Menu.
About CompuServe/Internet - No Longer Available
In addition to the BBS, Multi-Tech provides support through CompuServe's
Modem Vendor Forum ( GOMODEMVEN) under GO MULTITECH. Refer to your CompuServe documentation for special operating procedures.
Multi-Tech is a commercial provider on the Internet, and we retrieve e-mail messages from the following mailboxes on a periodic basis: [email protected]
Marketing Dept.
Sales Dept.
International Marketing &
Sales
Publications Dept.
If you prefer to recieve support via the internet, you can contact Tech
Support via e-mail .
Multi-Tech's presence includes a Web site at: http://www.multitech.com
and an ftp site at: ftp://ftp.multitech.com
Multi-Tech Fax-Back Service - No Longer Available
Multi-Tech's fax-back system provides 24-hour access to sales, marketing, and technical literature. Dial 612-717-5888, follow the voice prompts, and request document number 10 for a catalog of available documents.
For convenience, have your fax number handy: __________________ .
From the catalog of available documents, you can order newsletters, white papers, press releases, etc. from the sales and marketing index
(pages 1-4), or order basic modem operation and troubleshooting guides from the technical support and engineering index. Just enter the applicable
FB Doc. # from the left column of the catalog.
51
MT3334ZDX/V Owner's Manual
Appendix A - Technical Specifications
Your MultiModemZDX meets the following specifications:
Tradename
Model Numbers
Data Rates (modem)
MultiModemZDX
MT3334ZDX, and MT3334ZDXV
33,600, 31,200, 28,800, 26,400, 24,000,
21,600, 19,200, 16,800, 14,400, 12,000,
9600, 7200, 4800, 2400, 1200, 0-300 bps
Data Rates (fax)
Data Format
14,400, 9600, 7200, 4800, 2400 bps
Serial, binary, asynchronous at 75-300,
1200, 2400, 4800, 7200, 9600, 14,400,
16,800 or 19,200, 21,600, 24,000, 26,400,
28,800, 31,200, 33,600 bps
Compatibility
Fax Compatibility
Voice Compatibility
ITU V.42
bis, V.42, Enhanced V.34, ITU
V.32
bis, V.32, V.21, V.22bis, V.22, V.23,
ITU V.17, Group 3 T.4, T.30 and EIA TR-
29 Class 2
ITU-T V.17, Group 3, V.29, V.27
ter and
EIA TR-29 Class 2
IS-101 AT+V command compatible
(MT3334ZDXV only)
V.42 (LAP-M or MNP 3 & 4), Error Correction/
Data Compression
Speed Conversion
Flow Control
Mode of Operation
V.42
bis, (4:1 throughput), MNP 5 (2:1 throughput)
Serial port data rates adjustable to 300,
1200, 2400, 4800, 9600, 19,200, 38,400,
57,600 and 115,200 bps
Xon/Xoff, Hardware RTS/CTS, ENQ/ACK
Fax On-line modes, and “AT” command modes supporting Full duplex over dialup lines, "+V AT" (for MT3334ZDXV only)
Answering Machine and Voice Mail functions
52
Intelligent Features
Command Buffer
Data Modulation
Fax Modulation
Carrier Frequencies
Voice Compression and Sampling Rate
Appendices
Automatic or manual dialing, Automatic or manual answer, Microprocessorcontrolled, remote configuration, EIA extended Automode, adaptive line probing, automatic symbol rate and carrier frequency during start-up, retrain and rate renegotiation, DTMF detection, Autodial,
Redial, Repeat dial, Dial linking, Tone dial, Dial pauses, Call status display,
Auto-parity and data rate selection,
Keyboard-controlled modem options,
Nonvolatile memory and on-screen displays for modem option parameters and two telephone numbers/command lines of up to 60 digits each, Help menus
60 characters
Trellis Coded Modulation ( TCM) at
33,600, 31,200, 28,800, 26,400, 24,000,
21,600, 19,200, 16,800, 14,400, 12,000 and 9600 bps, Quadrature Amplitude
Modulation (QAM) at 9600 (non-trellis),
4800 and 2400 bps, PSK at 1200 bps,
FSK at 300 bps
V.17 TCM at 14400, 12000, 9600, and
7200 bps V.29 QAM at 9600 and 7200 bps V.27
ter DPSK at 4800 and 2400 bps
V.21CH2 FSK at 300 bps (Half Duplex)
1800 Hz V.32/V.32
bis/Enhanced V.34/
33.6K/31.2K/28.8K/26.4K/24K/21.6K/
19.2K/16.8K/14.4K/12K/9.6K/4.8K
PCM 128, 8000 kHz or
IMA ADPCM 8000 kHz (selectable via +V commands).
Note that your computer system should have a processing speed of at least 75 MHz to take full advantage of the telephony features of this product.
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MT3334ZDX/V Owner's Manual
Carrier Frequencies
2400 & 1200 bps
(V.22bis/V.22)
Carrier Frequencies
V.21
Transmit Originate:
Transmit Answer:
Receive Originate:
Receive Answer:
1200 Hz
2400 Hz
2400 Hz
1200 Hz
V.23
980 Hz Mark, 1180 Hz Space for
Transmit Originate
1650 Hz Mark, 1850 Hz Space for
Transmit Answer
1650 Hz Mark, 1850 Hz Space for
Receive Originate
980 Hz Mark, 1180 Hz Space for
Receive Answer
390 Hz Mark, 450 Hz Space for
Transmit Originate
1300 Hz Mark, 2100 Hz Space for
Transmit Answer
1300 Hz Mark, 2100 Hz Space for
Receive Originate
390 Hz Mark, 450 Hz Space for
Receive Answer
Carrier Frequencies Fax
V.21 CH2
(Half Duplex)
V.27ter
V.29 QAM
V.17 TCM
Transmit Level
Frequency Stability
Receiver Sensitivity
AGC Dynamic Range
Transmit Originate: 1650 Hz Mark,
1850 Hz Space
Transmit Answer: 1650 Hz Mark,
1850 Hz Space
Originate/Answer: 1800 Hz
Originate/Answer: 1800 Hz
Originate/Answer: 1800 Hz
-11dBm (dial-up)
±0.01%
-43 dBm under worst-case conditions
43 dB
54
Interface
Connectors
Diagnostics
Indicators
Controls
Speaker
Operating
Temperature
Power Requirement
Power Consumption
Dimensions
Weight
Limited Warranty
Appendices
EIA RS232C/CCITT V.24
DB25 ( RS232C) connector; Two RJ11 modular phone jack: for line, and telephone set, power jack.
Power-on Self Test, Local Analog Loop,
Local Digital Loop, Remote Digital Loop.
LEDs for Send Data, Receive Data,
Carrier Detect, various speed indicators,
Off Hook, Terminal Ready, Error
Correction, Fax.
Power ON/OFF Switch
Speaker with software- or commandcontrolled volume.
0° to 50° C
115 Volts AC, 60 Hz, .3 amp (2-prong outlet-mounted transformer); 240V/50Hz optional (international)
5 Watts
14.8 x 10.8 x 2.9 cm (L x W x D)
224 grams
Five years
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MT3334ZDX/V Owner's Manual
Appendix B - Tone Dial Frequencies
Hz Digits
697 1 2 3 A
770
4 5 6 B
852
7 8 9 C
941
*
0 # D
Hz 1209 1336 1477 1633
The tone-dialing method combines two frequencies for each of the twelve digits found on a Touch Tone dial pad. This method is referred to as Dual-
Tone Multi-Frequency ( DTMF) dialing. The four horizontal rows on a
Touch-Tone keypad use the four low frequencies (697, 770, 852, 941 Hz), while the three vertical columns use the three high frequencies (1209,
1336, 1477 Hz). The generally accepted tone frequency tolerance is
+0.02%.
For example, the digit 4 would be dialed by combining two tone frequencies.
It would use the frequency 770 Hz from the second row, and the frequency
1209 Hz from the first column. In another example, the digit 9 would be dialed with the tone frequencies of 852 Hz and 1477 Hz.
The extended DTMF characters (A, B, C, D) are the high-end frequencies
(1633 Hz) defined on some telephone sets with a fourth vertical column of buttons. This fourth column provides for extended PBX control functions; the actual functions provided are dependent on the PBX manaufacturer's implementation and feature set.
56
Appendices
Appendix C - Regulatory Information - See Web Site
Multi-Tech Web Site Publishes Current Regulations
1.
This equipment complies with Part 68 of the Federal Communications
Commission (FCC) rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN). If requested, this information must be provided to the telephone company.
2.
As indicated below, the suitable jack (Universal Service Order Code connecting arrangement) for this equipment is shown. If applicable, the facility interface codes (FIC) and service order codes (SOC) are shown.
An FCC-compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant. See installation instructions for details.
3.
The ringer equivalence number (REN) is used to determine the quantity of devices which may be connected to the telephone line.
Excessive REN’s on the telephone line may result in the devices not ringing in response to an incoming call. In most, but not all areas, the sum of the REN’s should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total REN’s, contact the telephone company to determine the maximum REN for the calling area.
4.
If this equipment causes harm to the telephone network, the telephone company will notify you in advance that temporary discontinuance of service may be required. But if advance notice isn’t practical, the telephone company will notify the customer as soon as possible.
Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary.
5.
The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make necessary modifications in order to maintain uninterrupted service.
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MT3334ZDX/V Owner's Manual
6.
If trouble is experienced with this equipment (the model of which is indicated 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 telephone network, the telephone company may request you remove the equipment from the network until the problem is resolved.
7.
No repairs are to be made by you. Repairs are to be made only by
Multi-Tech Systems or its licensees. Unauthorized repairs void registration and warranty.
8.
This equipment cannot be used on public coin service provided by the telephone company. Connection to Party Line Service is subject to state tariffs. (Contact the state public utility commission, public service commission or corporation commission for information.)
9.
If so required, this equipment is hearing-aid compatible.
Manufacturer:
Model Numbers:
FCC Registration #:
Ringer Equivalence:
Modular Jack (USOC)
Service Center in USA:
Multi-Tech Systems, Inc.
MT3334ZDX, MT3334ZDXV
AU7USA-31068-MME
0.4B
RJ11C or RJ11W (single line)
Multi-Tech Systems Inc.
2205 Woodale Drive
Mounds View, MN 55112
Voice (612) 785-3500/
FAX (612) 785-9874
58
Appendices
NOTE: 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 when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instruction manual, 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 harmful 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.
Connect the equipment into an outlet on a circuit different from that of which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device to send any message via a telephone fax machine unless such message clearly contains in a margin at the top or bottom of each page or the first page of the transmission, the date and time it is sent and an identification of the business or other entity, or other individual sending the message and the telephone number of the sending machine or such business, other entity, or individual. See the cover page of your fax software manual for setup details.
This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
59
MT3334ZDX/V Owner's Manual
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 of a 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. The ringer equivalence number for this product is 0.2.
Notice: The Industry Canada label identifies certificated equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. The Industry
Canada does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
The equipment must also be installed using an acceptable method of connection. The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.
Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate.
60
Appendices
Compliance with BABT Requirements
Approved for connection to telecommunications system specified in the instructions 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.
Advice should be obtained from a competent engineer before such a connection is made.
This apparatus has been approved for the use of the following facilities:
• Auto-calling
• Loop disconnect and MF dialing
• Phone number storage and retrieval by a predetermined code
• Operation in the absence of proceed indication
• Automatic storage of last number dialed
• Tone detection-busy
• Auto clear from the originating end
• DTR dialing
• Modem
• PBX timed break register recall
European Low Voltage Directive
When correctly installed and maintained, 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 comply with ITU recommendation V28. The DTE connections are therefore taken to be safe voltages (less than ± 30 volts).
The main power source shall be installed near to the equipment and shall be easily accessible. The plug that connect to the apparatus to the main power supply must be fitted with a 5A fuse that complies with BSI1362.
Ports which are capable of connecting to other apparatus are defined as
SELV. To ensure conformity with EN41003, ensure that these ports are only connected to ports of the same type on other apparatus.
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MT3334ZDX/V Owner's Manual
Compliance with BS6305 Clause 6.2, BS6320 Clause 7.2, and BABT/SITS/82/005S/D
a.
The modem is suitable for connection to the Public Switched
Telephone Network (PSTN) provided by British Telecommunications plc or Kingston Communications (Hull) plc. Circuit supply by British
Communications, Mercury Communication, or Hull City Council.
Only direct exchange lines may be used, not shared service.
b.
The modem is suitable for household, office, and similar general indoor use. It is not suitable for use as an extension to a payphone.
c.
BT lines supplied must support either loop disconnect or multifrequency tone signalling.
d.
REN (Ringer Equivalence Number).
The REN value of a unit is calculated from 3/n where n is the total number of units which can be connected in parallel which will still cause the standard bell (as defined in BS6305 Appendix D) to ring.
REN values of less than 0.3 cannot be assigned.
REN = 1
If a telephone or other device is connected in parallel with the modem, the combined REN must not exceed 4. A BT supplied telephone may be assumed to have REN of 1.0 unless otherwise noted.
The approval of this modem for connection to the British Telecom public switched telephone network is INVALIDATED if the apparatus is subject to any modification in any material way not authorized by BABT or if it is used with or connected to: i.
internal software that has not been formally accepted BABT.
ii.
external control software or external control apparatus which cause the operation of the modem associated call set-up equipment to contravene the requirements of the standard set out in BABT/SITS/
82/005S/D.
All other apparatus connected to this modem and thereby connected directly or indirectly to the British Telecom public switched telephone network must be approved apparatus as defined in Section 22 of the
British Telecommunications Act 1984.
The REN number for this apparatus = 1
62
Appendices
Compliance with BS6789: Section 3.1 and Part 2
a.
The modem is not capable of allowing Auto Call using '999' or other
PABX emergency numbers.
b.
Modes other than modes 1, 2, or 3 should not be used on the BT
PSTN. This modem is a mode 1 device.
c.
Users are advised to check the numbers entered during the Auto Call set up phase prior to dialing.
d.
The user should not issue any sequence of commands to the modem which would cause the modem to exceed the maximum allowable pause of 8 seconds from the time the modem goes off hook until dialing begins.
e.
For correct operation of the call progress monitor, the power has to be properly connected and switched on.
Compliance with BS6328 Part 1
a.
The modem is not suitable for use on circuits with British
Telecommunications signaling at a normal frequency of 2280 Hz.
b.
The modem does not require signaling or otherwise employ the frequency range dc to 200 Hz.
c.
The modem may be connected to a point to point two-wire or fourwire Private Circuit.
d.
The modem does not require dc from the Private Circuit for correct operation. The modem may be damaged if connected, in a private circuit mode, to a circuit supplying dc current (the maximum permissible direct current is zero amps).
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MT3334ZDX/V Owner's Manual
Modem CE Mark EMC and Safety Compliance
The CE mark is affixed to the enclosed Multi-Tech product to confirm compliance with the following European Community Directives:
Council Directive 89/336/EEC of 3 May 1989 on the approximation of laws of Member States relating to electromagnetic compatibility; and
Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member States relating to electrical equipment designed for use within certain voltage limits; both amended by
Council Directive 93/68/EEC of 22 July 1993 on the harmonization of CE marking requirements.
Australian and New Zealand Modem Warning Notice
Australian Modem Warning Notice
Modems connected to the Australian telecommunications network must have a valid AUSTEL permit. This modem has been specifically configured to ensure compliance with AUSTEL Standards. The following commands can affect compliance and must not be set outside the acceptable range.
Modem Commands:
Command
A:
ATB
AT&G
AT&P
ATSn
S-Register
S6
-
Default
B0
&G2
&P1 see table below
Default
4
Permissible Range
Do not use
Do not change
Do not change
Do not change
Permissible Range
2 - 5
64
Appendices
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. If the call sequence is unsuccessful, there shall be a delay of at least 30 minutes before attempting to call the number again.
Failure to set the modem, and any communications software used with the modem, to the values shown above will result in the modem being operated in a non-compliant manner. Consequently, there would be no permit in force for this equipment, and the
Telecommunications Act 1991 prescribes a penalty of $12,000 for the connection of non-permitted equipment.
For Voice Modems:
“Distortion may be generated because of low bit rate voice, and reduced voice quality may result.”
“WARNING: For safety reasons, only connect AUSTEL permitted or
AUSTEL certified equipment.”
Refer to the applicable MultiModemII Owner’s Manual for additional information.
Protection Against Contact with TNV Circuit (Internal PC Cards)
The protective cover is fastened to the modem card by means that will only allow a tool to remove the cover. “Warning: removal of the protective cover will render the AUSTEL permit void.”
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.”
“The preferred method of dialing is to use DTMF tones, as this is faster than pulse (decadic) dialing and is readily available on almost all New
Zealand telephone exchanges.”
“WARNING NOTICE: No ‘111’ or other calls can be made from this device during a mains power failure”.
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MT3334ZDX/V Owner's Manual
Index
A
About CompuServe ................................................................. 51
About the Multi-Tech BBS ........................................................ 49
AGC Dynamic Range .............................................................. 54
Answer ..................................................................................... 27
Answering Machine
Capabilities ............................................................................. 7
Asynchronous Communications Mode .................................... 33
AT Commands ........................................................................... 6
Attention Code ......................................................................... 27
.......................................... 36, 37, 38, 39, 40
Auxiliary Relay Control ............................................................ 32
B
BBS ......................................................................................... 49
British Telecommunications ......................................................... 62
Bulletins ................................................................................... 51
C
Call Status ............................................................................... 13
Call Waiting .............................................................................. 24
Canadian Limitations Notice .................................................... 60
Carrier Control ......................................................................... 27
Carrier Detect .......................................................................... 13
Carrier Frequencies Fax .......................................................... 54
COM Ports ................................................................................. 5
............................................................................. 25
Comma Pause ......................................................................... 37
Command Buffer ...................................................................... 53
Communication Standard Setting ............................................ 27
Communications Mode ............................................................ 32
Compatibility ............................................................................ 52
Compliance with BABT Requirements ..................................... 61
Compliance with BS6328 Part 1 .............................................. 63
66
Index
Compression, data .................................................................... 6
CompuServe/Internet .............................................................. 51
Connection .............................................................................. 22
Connectors .............................................................................. 55
Controls ................................................................................... 55
D
Data ........................................................................................... 6
Carrier Detect (DCD) Control ............................................... 31
Compression ........................................................................ 52
Compression Control ............................................................ 34
Features ................................................................................. 6
Format .................................................................................. 52
Modulation ............................................................................ 53
Data Rates (bps) .................................................................. 52
Data Set Ready (DSR) Control ................................................ 33
Data Terminal Ready (DTR) Control ........................................ 32
............................................................ 6, 20
DB-25 Connector ....................................................................... 5
DB-9 Connector ......................................................................... 5
Diagnostics .............................................................................. 55
Dial Command ......................................................................... 28
Dimensions .............................................................................. 55
Downloading a File .................................................................. 49
E
Echo Command Mode Characters Command ......................... 28
Echo Online Data Characters Command ................................ 29
Enable/Disable Result Codes .................................................. 30
ENTER or Carriage Return <CR> Key .................................... 27
................................................................. 14, 52
Mode Selection ..................................................................... 34
European Low Voltage Directive .............................................. 61
Extended DTMF Characters .................................................... 56
67
MT3334ZDX/V Owner's Manual
F
Fall-forward ................................................................................ 6
Fallback ..................................................................................... 6
........................................................................................ 6, 7
Command set ......................................................................... 7
Features ................................................................................. 7
Transmission speeds .............................................................. 7
Fax Modulation ........................................................................ 53
Fax-Back Service .................................................................... 51
FCC Regulations ..................................................................... 57
Flow Control ............................................................................ 52
Flow Control ............................................................................ 25
Frequency Stability .................................................................. 54
Front Panel .............................................................................. 19
G
Garbage Characters ................................................................ 26
Guard Tone Control ................................................................. 32
H
Hardware/Software Confirmation ............................................. 18
I
Indicators ................................................................................. 55
Information Request Command ............................................... 29
............................................................ 20, 22
Installation ................................................................................. 9
Intelligent Features .................................................................. 53
Interface ................................................................................... 55
Internet .................................................................................... 51
K
Kingston Communications (Hull) ............................................. 62
68
Index
L
Leaving a Message ................................................................. 50
LED Indicators ......................................................................... 12
LEDs ........................................................................................ 19
................................................................ 46, 55
Line Feed Character (S4) ........................................................ 36
Load Factory Default Settings ................................................. 32
Logging on to the BBS ............................................................. 49
Long Space Disconnect ........................................................... 31
Losing Data ............................................................................. 25
M
MNP 5 ...................................................................................... 25
Data compression .................................................................. 6
MNP error correction ................................................................. 6
Mode of Operation ................................................................... 52
Model Number ......................................................................... 52
Modem Cannot Connect When Answering .............................. 24
Modem CE Mark EMC and Safety Compliance ....................... 64
Modem Disconnects While Online ........................................... 24
Modem Does Not Respond to Commands .............................. 20
Modem Reset .......................................................................... 31
Modulation Handshake ............................................................ 30
Monitor Speaker Mode ............................................................ 29
Monitor Speaker Volume Command ........................................ 29
.................................................. 9, 11
MT5634ZDXv Initialization setup ............................................. 17
Multi-Tech BBS ........................................................................ 49
................................................. 23, 24
O
On-hook/off-hook ..................................................................... 29
On-Hook/Off-Hook Control ...................................................... 29
Operating Temperature ............................................................ 55
69
MT3334ZDX/V Owner's Manual
P
Pause, Dialing ......................................................................... 37
Power Requirements ............................................................... 55
.................................................................... 10, 19
Protocol Result Code ............................................................... 34
Protocols .................................................................................. 25
R
Read Register Value ................................................................ 30
Reading a Message ................................................................. 50
Receive Data ........................................................................... 12
Receiver Sensitivity ................................................................. 54
Repeat Last Command ............................................................ 27
Result Code Selection ............................................................. 31
Result Codes ........................................................................... 22
Return Character (S3) ............................................................. 36
Return Online to Data Mode .................................................... 30
Ringer Equivalence Number .................................................... 62
RS-232 ...................................................................................... 5
S
Select Stored Configuration for Hard Reset ............................ 33
Serial Cable ............................................................................. 20
.......................................................................... 21, 25
Set Break Control .................................................................... 34
Set Register Value ................................................................... 30
Software User License Agreement .......................................... 47
Speaker ................................................................................... 55
Speakerphone ........................................................................... 7
Speed Conversion ................................................................... 52
Speed, transmission
Data ........................................................................................ 6
Fax ......................................................................................... 7
Store Current Configuration ..................................................... 33
Store Telephone Number ......................................................... 33
70
Index
T
..................................................................... 5, 22
Terminal mode ......................................................................... 20
Terse/Verbose .......................................................................... 41
Result Code Format ............................................................. 30
Test Commands ....................................................................... 33
............................................................................... 19, 22
Self-test ................................................................................ 19
Tradename .............................................................................. 52
Transmit Data .......................................................................... 12
Transmit Level ......................................................................... 54
U
UARTs ..................................................................................... 25
16550 ................................................................................... 25
V
V.22 mode ................................................................................ 27
V.22bis Guard Tone command ................................................. 32
V.42 error correction .................................................................. 6
V.42bis data compression .......................................................... 6
View Current Configuration Command .................................... 33
Voice .......................................................................................... 7
Command set ......................................................................... 7
Features ................................................................................. 7
Voice Compatibility .................................................................. 52
Voice Compression .................................................................. 53
Voice Compression and Sampling Rate .................................. 53
W
............................................................................ 10, 46
Weight ..................................................................................... 55
X
Xmodem .................................................................................. 25
71
Prenesi
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