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.
Contents Chapter 1 - Introduction and Description Introduction .................................................................................................................... 5 Requirements ................................................................................................................ 5 Computer ............................................................................................................... 5 Serial Cable ..................................................................
Chapter 4 - Modem Testing Local Analog Loopback Test/V.54 Loop 3 .................................................................. 42 Digital Loopback Test/V.54 Loop 2 (Local/Manual) ................................................... 43 Digital Loopback Test/V.54 Loop 2 (Remote/Auto) .................................................... 44 Chapter 5 - Service, Warranty and Tech Support Introduction ............................................................................................................
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.
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.
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.
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.
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.
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.
2 - Installation ✳ # Figure 2-2.
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). 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.
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.32bis. This LED is lit when the modem is connected in V.32bis mode. Note at speeds lower than a V.32bis connection, the MultiModemZDX speed LEDs remain unlit. 96 9600bps. This LED is lit when the modem is connected at 9600 bps. OH Off Hook.
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.
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.
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.
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.
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 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.
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.
MT3334ZDX/V Owner's Manual The Modem Does Not Respond to Commands 20 • 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.
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.
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.
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.
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.
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.
MT3334ZDX/V Owner's Manual Garbage Characters on the Monitor 26 • 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.
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. Command: AT Values: n/a Description: Attention Code The attention code precedes all command lines except A/ and the escape sequence. Command: ENTER or Carriage Return Key Values: n/a Description: Press the ENTER or Carriage Return key to execute most commands.
MT3334ZDX/V Owner's Manual Command: Ds Dial Values: 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. Dial string modifiers: L P T V W S , ; ! @ $ ^ Command: Values: Default: Description: 28 Redial last number. (Must be placed immediately after ATD.
3 - AT Commands, S-Registers and Result Codes Command: Values: Default: Description: Fn n=1 1 F0 F1 Command: Values: Default: Description: Hn On-Hook/Off-Hook Control n = 0 or 1 0 H0 Go on-hook to hang up. H1 Go off-hook to make the phone line busy. Command: Values: Default: Description: In Information Request n = 0–4 None I0 Display default speed and controller firmware version. I1 Calculate and display ROM checksum (e.g., “12AB”). I2 Check ROM and verify the checksum, displaying OK or ERROR.
MT3334ZDX/V Owner's Manual Command: Values: Default: Description: Nn Modulation Handshake n = 0 or 1 1 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.
3 - AT Commands, S-Registers and Result Codes Command: Values: Default: Description: Xn Result Code Selection n = 0–4 4 X0 Basic Result Codes (e.g., CONNECT); does not look for dial tone or busy signal. X1 Extended Result Codes (CONNECT 33600 V42bis, etc.); does not look for dial tone or busy signal. X2 Extended Result Codes with NO DIALTONE; does not look for busy signal. X3 Extended Result Codes with BUSY; does not look for dial tone. X4 Extended Result Codes with NO DIALTONE and BUSY.
MT3334ZDX/V Owner's Manual 32 Command: Values: Default: Description: &Dn Data Terminal Ready (DTR) Control n = 0, 1, 2, or 3 2 &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 When DTR drops while in online data mode, the modem hangs up. &D3 When DTR drops, the modem hangs up and resets as if an ATZ command were issued.
3 - AT Commands, S-Registers and Result Codes Command: Values: Defaults: Description: &Qn Asynchronous Communications Mode n = 0, 5, or 6 5 &Q0 Asynchronous with data buffering. Same as \N0. &Q5 Error control with data buffering. Same as \N3. &Q6 Asynchronous with data buffering. Same as \N0. Command: Values: Default: Description: &Sn Data Set Ready (DSR) Control n = 0 or 1 0 &S0 Force DSR high (on). &S1 Let DSR follow CD.
MT3334ZDX/V Owner's Manual 34 Command: Values: Default: Description: \Kn n=5 5 \K5 Command: Values: Default: Description: \Nn Error Correction Mode Selection n = 0–5 3 \N0 Non-error correction mode with data buffering (same as &Q6). \N1 Direct mode. \N2 MNP reliable mode. \N3 V.42/MNP auto-reliable mode. \N4 V.42 reliable mode. \N5 V.42, MNP, or non-error correction (same as \N3).
3 - AT Commands, S-Registers and Result Codes Command: Values: Default: Description: $MB Modem n = speed 33600 $MB75 $MB300 $MB1200 $MB2400 $MB4800 $MB9600 $MB14400 $MB19200 $MB28800 $MB33600 Baud Rate Command: Values: Default: Description: $SB Serial Port Baud Rate n = speed 115200 $SB300 Selects 300 bps at serial port. $SB1200 Selects 1200 bps at serial port. $SB2400 Selects 2400 bps at serial port. $SB4800 Selects 4800 bps at serial port. $SB9600 Selects 9600 bps at serial port.
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 SRegister, 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.
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.
MT3334ZDX/V Owner's Manual 38 Register: Unit: Range: Default: Description: S11 1 ms 50-150 95 Register: Unit: Range: Default: Description: S28 decimal 0, 1-255 1 Register: Unit: Range: Default: Description: S30 1 minute 0-255 0 Register: Unit: Range: Default: Description: S35 decimal 0-1 0 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.
3 - AT Commands, S-Registers and Result Codes Register: Unit: Range: Default: Description: S37 decimal 0-19 0 Register: Unit: Range: Default: Description: S42 decimal 0-1 1 Register: Unit: Range: Default: Description: S43 decimal 0-1 1 Sets the maximum dial line rate.
MT3334ZDX/V Owner's Manual 40 Register: Unit: Range: Default: Description: S48 decimal 7 or 128 7 Register: Unit: Range: Default: Description: S89 seconds 0, 5-255 10 The following chart lists the S36 and S48 configuration settings necessary to negotiate certain types of connections. 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.
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.
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. Figure 4-1. Local Analog Loopback Test The test procedure is as follows: 42 1. Connect the modem to your computer.
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.
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) 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.
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.
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.
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.
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.
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).
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.
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.
MT3334ZDX/V Owner's Manual Appendix A - Technical Specifications Your MultiModemZDX meets the following specifications: 52 Tradename MultiModemZDX Model Numbers MT3334ZDX, and MT3334ZDXV Data Rates (modem) 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) 14,400, 9600, 7200, 4800, 2400 bps Data Format Serial, binary, asynchronous at 75-300, 1200, 2400, 4800, 7200, 9600, 14,400, 16,800 or 19,200, 21,600, 24,000
Appendices Intelligent Features 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 opti
MT3334ZDX/V Owner's Manual Carrier Frequencies 2400 & 1200 bps (V.22bis/V.22) Transmit Originate: Transmit Answer: Receive Originate: Receive Answer: 1200 2400 2400 1200 Hz Hz Hz Hz Carrier Frequencies V.21 980 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 V.
Appendices Interface EIA RS232C/CCITT V.24 Connectors DB25 (RS232C) connector; Two RJ11 modular phone jack: for line, and telephone set, power jack. Diagnostics Power-on Self Test, Local Analog Loop, Local Digital Loop, Remote Digital Loop. Indicators LEDs for Send Data, Receive Data, Carrier Detect, various speed indicators, Off Hook, Terminal Ready, Error Correction, Fax. Controls Power ON/OFF Switch Speaker Speaker with software- or commandcontrolled volume.
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 * 0 # D 1336 1477 1633 941 Hz 1209 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 DualTone Multi-Frequency (DTMF) dialing.
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.
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.
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.
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.
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.
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.
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.
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;
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.
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 .............................................................................
Index Compression, data .................................................................... 6 CompuServe/Internet .............................................................. 51 Connection .............................................................................. 22 Connectors .............................................................................. 55 Controls ................................................................................... 55 D Data ........................................
MT3334ZDX/V Owner's Manual F Fall-forward ................................................................................ 6 Fallback ..................................................................................... 6 Fax ........................................................................................ 6, 7 Command set ......................................................................... 7 Features .................................................................................
Index L Leaving a Message ................................................................. 50 LED Indicators ......................................................................... 12 LEDs ........................................................................................ 19 Limited Warranty ................................................................ 46, 55 Line Feed Character (S4) ........................................................ 36 Load Factory Default Settings .......................
MT3334ZDX/V Owner's Manual P Pause, Dialing ......................................................................... 37 Power Requirements ............................................................... 55 Power Supply ....................................................................10, 19 Protocol Result Code ............................................................... 34 Protocols .................................................................................. 25 R Read Register Value .........
Index T Telephone line ..................................................................... 5, 22 Terminal mode ......................................................................... 20 Terse/Verbose .......................................................................... 41 Result Code Format ............................................................. 30 Test Commands ....................................................................... 33 Testing ................................................
