Instruction/ maintenance manual of the product MT2834ZPX Multi-Tech Systems
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Model Number MT2834ZPX Owner's Manual.
Owner’s Manual 82041404 Revision E — 11/25/96 #MT2834ZPX 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 © 1996, by Multi-Tech Systems, Inc.
Contents Chapter 1 - Introduction and Description Introduction ................................................................................................................ 5 Modem Features ..........................................................
Chapter 5 - T roubleshooting T roubleshootin g ...................................................................................................... . 4 9 The Modem Does Not Respond to Command s ........................................... . 4 9 The Modem Dials But Cannot Make a Connectio n .
5 Chapter 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 and fax modems available today, model MT2834ZPX, from Multi-Tech Systems.
6 MT2834ZPX Owner's Manual Fax Features Your MT2834ZPX meets the CCITT V.17 standard for sending and receiving faxes. When linked to a compatible fax machine or modem, it can transmit faxes at 14.
7 Chapter 1 - Introduction and Description How to Use This Manual This manual is divided into seven chapters and two appendices. The information contained in each chapter and appendix is as follows: C.
8 MT2834ZPX Owner's Manual Chapter 6 - Testing Your Modem Chapter 6 covers the modem's built-in test features. These are: Power-on 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.
9 Chapter 2 - Installation and Configuration Chapter 2 - Installation and Configuration Installation This chapter provides you with the procedures to install the Multi-Tech MT2834ZPX card in your ISA or EISA bus personal computer. Hardware installation involves: 1) Opening your PC.
10 MT2834ZPX Owner's Manual Configuration/Installation Procedure Perform the procedures in Table 2-1 to configure and install the MT2834ZPX card into your ISA or EISA bus host computer. Table 2-1. Configuration and Installation Procedure Step Procedure 1 Make sure your computer and any peripheral equipment connected to it, are turned off.
11 Chapter 2 - Installation and Configuration Figure 2-1. MT2834ZPX Printed Circuit Board and Alternate COM Port/IRQ Settings.
12 MT2834ZPX Owner's Manual Table 2-1 (Cont'd). Configuration and Installation Procedure Step Procedure 5 Install the MT2834ZPX card into the selected expansion slot(s) in the same manner as any other add-on card, as instructed in your computer’s documentation.
13 Chapter 2 - Installation and Configuration Operating Your MT2834ZPX You control your MT2834ZPX by issuing AT commands and setting S- Registers. Right now your MT2834ZPX is set up for the most typic.
14 MT2834ZPX Owner's Manual Simple Operations You can dial a number by using the ATD command and the phone number of the modem with which you wish to connect, e.
15 Chapter 3 - Software Configuration Chapter 3 - Software Configuration Introduction Communications software must be configured to work with your modem, your computer, and the remote system it is calling.
16 MT2834ZPX Owner's Manual PC Initialization Strings We recommend the following initialization string for a MT2834ZPX connected to a PC-compatible computer: AT &F X4 S0= 2 ^M This string res.
17 Chapter 3 - Software Configuration Changing Default Parameters The default values for the other parameters in modem configuration menus rarely need changing.
18 MT2834ZPX Owner's Manual Configuring Software for the Remote System You must meet the requirements of the remote system for successful communications.
19 Chapter 3 - Software Configuration File Transfer Protocols When you upload or download files with your modem, the host computer will ask which file transfer protocol you want to use. Most communications programs allow you to choose a default protocol.
20 MT2834ZPX Owner's Manual As a general rule, you should try to transmit files in already- compressed form rather than relying on V.42bis hardware compression. Because software compression is more efficient than hardware compression, you will have a higher throughput with the former.
21 Chapter 3 - Software Configuration To enable the buffer, use Notepad to open the SYSTEM.INI file in your Windows directory, and add the following line to the [386Enh] section: COMnFIFO=1 where n is the number of the COM port the 16550 is installed on.
22 MT2834ZPX Owner's Manual Chapter 4 - AT Commands, S-Registers and Result Codes Dialing/On-Line/Answering There are several basic steps for “originating” and “answering” in data communication mode: 1. Load communication software 2. Dial 3.
23 Chapter 4 - AT Commands, S-Registers and Result Codes The MT2834ZPX responds with “CONNECT” on your video display after the number is dialed and a connection signal is detected (since the MT2834ZPX defaults to Enhanced V.34/V.42/V.42 bis , the actual response is " CONNECT LAPM COMPRESSED ”).
24 MT2834ZPX Owner's Manual COMMAND: A VALUES: n/a DEFAULT: n/a DESCRIPTION: Answer call, even if no ring present. COMMAND: A/ VALUES: n/a DEFAULT: n/a DESCRIPTION: Repeat last command. (Do not precede this command with AT. Do not hit RETURN to execute.
25 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: #A n VALUES: n = 0 thru 3 DEFAULT: #A0 DESCRIPTION: #A0 selects initial handshake at 33,600 to 31,200 to 28,800 to 24000 to 21,600 to 19,200 to 16,800 to 14,400 to 12,000 to9600 to 4800 to 2400 to 1200 to 300 bps.
26 MT2834ZPX Owner's Manual COMMAND: &C n VALUES: n = 0, 1, 2 or 4 DEFAULT: &C1 DESCRIPTION: &C0 forces Carrier Detect on. &C1 lets Carrier Detect act normally. &C2 lets Carrier Detect drop S24 time on disconnect. &C4 resets modem when Carrier Detect drops.
27 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: %DF n VALUES: n = 0 or 1 DEFAULT: %DF0 DESCRIPTION: %DF0 selects V.34 Line Probe Data in Graph Format.
28 MT2834ZPX Owner's Manual COMMAND: &E n (Cont'd) &E3 selects no modem-initiated flow control. &E4 selects CTS modem-initiated flow control. &E5 selects Xon/Xoff modem-initiated flow control. &E6 selects Xon/Xoff not passed through.
29 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: $F n VALUES: n = 0 or 1 DEFAULT: $F1 DESCRIPTION: $F0 selects do not fall back to normal connect if CR received. $F1 selects fall back to normal connect if CR received. COMMAND: &G n VALUES: n = 0, 1 or 2 DEFAULT: &G0 DESCRIPTION: &G0 turns off CCITT guard tones.
30 MT2834ZPX Owner's Manual COMMAND: I9 VALUES: N/A DEFAULT: Read Only Command DESCRIPTION: The I9 command is a query to display this modem's characteristics when operating within Windows 95. Entering ATI9 <cr> invokes ZPX 28800 FAX CT on your video monitor.
31 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: $MB n VALUES: n = speed DEFAULT: $MB33600 bps DESCRIPTION: $MB75 selects CCITT V.23 mode. $MB300 selects 300 bps on-line. $MB1200 selects 1200 bps on-line. $MB2400 selects 2400 bps on-line.
32 MT2834ZPX Owner's Manual COMMAND: &P n VALUES: n = 0 or 1 DEFAULT: &P1 DESCRIPTION: &P0 selects 60-40 pulse ratio. &P1 selects 67-33 pulse ratio. COMMAND: Q n VALUES: n = 0, 1 or 2 DEFAULT: Q0 DESCRIPTION: Q0 means Result Codes sent.
33 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: &RF n VALUES: n = 0 or 1 DEFAULT: &RF1 DESCRIPTION: &RF0 selects CTS follows RTS.
34 MT2834ZPX Owner's Manual COMMAND: &Sn VALUES: n = 0, 1 or 2 DEFAULT: &S1 DESCRIPTION : &S0 forces Data Set Ready On. &S1 lets Data Set Ready act normally. &S2 Data Set Ready drop is regulated by S24 on disconnect. COMMAND: T VALUES: n/a DEFAULT: Tone Dial DESCRIPTION : Modem will tone-dial numbers following the T.
35 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: Un VALUES: n = 0, 1, 2, or 3 DEFAULT: n/a DESCRIPTION : U0 places modem in Analog Loop Originate Mode. U1 places modem in Analog Loop Answer Mode. U2 places modem in Remote Digital Loopback test mode.
36 MT2834ZPX Owner's Manual COMMAND: Xn VALUES: n = 0, 1, 2, 3 or 4 DEFAULT: X0 DESCRIPTION : X0 selects Basic Result Codes (w/o CONNECT 1200, CONNECT 2400). X1 selects Extended Result Codes (w/CONNECT 1200, CONNECT 2400). X2 selects Standard AT Command set with NO DIAL TONE.
37 Chapter 4 - AT Commands, S-Registers and Result Codes COMMAND: ;(Semi-Colon) VALUES: n/a DEFAULT: n/a DESCRIPTION: Causes return to Command Mode after dialing. COMMAND: ! (Exclamation) VALUES: n/a DEFAULT: n/a DESCRIPTION : Causes modem to flash On-Hook.
38 MT2834ZPX 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.
39 Chapter 4 - AT Commands, S-Registers and Result Codes TABLE 4-1 (Cont'd). Remote Configuration Operation Procedures You can now use any AT commands of the modem being remotely configured as if they were being entered locally. You cannot change the Set-up of the LOGIN Password until you enter the proper LOGIN Password.
40 MT2834ZPX 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 ( = ) .
41 Chapter 4 - AT Commands, S-Registers and Result Codes S3 Return Character Unit: ASCII Character Range: 0-127 Default: 13 Description: Defines the character recognized as Carriage Return (RE- TURN) or “Enter”. S4 Line Feed Character Unit: ASCII Character Range: 0-127 Default: 10 Description: Defines the character recognized as LINE FEED.
42 MT2834ZPX Owner's Manual S8 Pause Time for Comma Unit: 1 second Range: 0-255, 4-255** Default: 2, 4** Description: Sets the length of the pause caused by a comma inserted in a dialing command.
43 Chapter 4 - AT Commands, S-Registers and Result Codes S13 Remote Configuration Escape Character Unit: ASCII Character Range: 0-127 Default: 37 ( % sign ) Description: Defines the remote configuration escape character. S17 Changing Break Time Unit: 10 mSec.
44 MT2834ZPX Owner's Manual S29 Local Inactivity Timer Unit: minutes Range: 1-255 Default: 20 Description: Defines the amount of idle time that can elapse between AT commands after the SETUP password has been entered. S30 Inactivity Timer Unit: 1 minute Range: 0-255 Default: 0 Description: Inactivity timer used to disconnect the modem.
45 Chapter 4 - AT Commands, S-Registers and Result Codes S36 Time Between DTR Inactive and Modem Off-Hook Unit: 1 Second Range: 0-255 seconds Default: 0 Description: Sets the time between DTR inactive (low) and the modem going off-hook . The DTR Busy-out feature is disabled with S36=0.
46 MT2834ZPX Owner's Manual Result Codes The MT2834ZPX Command mode provides you with several responses, or “Result Codes” , that can aid you in Command mode operation. These Result Codes are displayed on your video monitor. AT&Q0 selects Multi-Tech responses with Reliable/LAP-M/ Compressed modifiers.
47 Chapter 4 - AT Commands, S-Registers and Result Codes Table 4-3 &Q1 "Standard AT" Result Codes TERSE VERBOSE 0O K 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7.
48 MT2834ZPX Owner's Manual AT Commands and S-Register Summary The vast majority of installations are similar, with the MT2834ZPX being used to dial up a remote installation where the call is automatically answered.
49 Chapter 5 - Troubleshooting Chapter 5 - Troubleshooting Troubleshooting Your MT2834ZPX 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.
50 MT2834ZPX Owner's Manual Some connect when the software loads and remain connected until the program terminates. Others, like MultiExpress Terminal, can disconnect without exiting the program (make sure the Connect icon looks plugged in).
51 Chapter 5 - Troubleshooting 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.
52 MT2834ZPX Owner's Manual • 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.
53 Chapter 5 - Troubleshooting 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.
54 MT2834ZPX Owner's Manual 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.
55 Chapter 5 - Troubleshooting Getting 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.
56 MT2834ZPX Owner's Manual Chapter 6 - Testing Your Modem 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.
57 Chapter 6 - Testing Your Modem 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.
58 MT2834ZPX Owner's Manual 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.
59 Chapter 6 - Testing Your Modem Note: The &T4 command must be set on the remote modem to run this test. 3. Type the Escape Sequence ( +++AT<CR> or <BREAK>AT<CR> ) which brings your modem into Command mode, while still maintaining the connection with the remote modem.
60 MT2834ZPX Owner's Manual Chapter 7 - Service, Warranty and Tech Support Introduction This chapter starts out with statements about your modem's 10-year warranty. The next section, Tech Support, should be read carefully if you have questions or problems with your modem.
61 Chapter 7 - 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.
62 MT2834ZPX 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.
63 Chapter 7 - Service, Warranty and Tech Support About the Multi-Tech BBS For customers who do not have Internet access, Multi-Tech maintains a bulletin board system (BBS) that mirrors its FTP site. Information available from the BBS includes new product information, product upgrade files, and problem-solving tips.
64 MT2834ZPX Owner's Manual 7. When the download is complete, press ENTER to return to the File Menu. 8. To exit the BBS, type G and press ENTER. 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 , press ENTER, then type L and press ENTER again.
65 Chapter 7 - Service, Warranty and Tech Support About CompuServe/Internet 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.
66 MT2834ZPX Owner's Manual Appendix A - Technical Specifications Your MT2834ZPX data/fax modem meets the specifications listed below: Model Numbers MT2834ZPX Data Rates (modem) 33,600, 31,200, 2.
67 Appendix A - Technical Specifications Intelligent Features Fully “AT command” compatible, microprocessor controlled remote configuration, EIA extended Automode, adaptive line probing, automatic.
68 MT2834ZPX Owner's Manual Carrier Frequencies(Data) 1800 Hz V.32/V.32 bis /V.32 terbo / Enhanced V.34 33.6K/31.2K/28.8K/26.4K/24K/21.6K/ 19.2K/16.
69 Appendix A - Technical Specifications V.23 390 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 Transmit Level -10dBm (dial-up) Frequency Stability ±0.
70 MT2834ZPX Owner's Manual Appendix B - Tone Dial Frequencies Hz Digits 697 770 852 941 Hz 1209 1336 1477 1633 1 2 3 A 4 5 6 B 7 8 9 C 0 # D * The tone-dialing method combines two frequencies for each of the twelve digits found on a Touch Tone dial pad.
71 Appendix C - FCC and Canadian Regulations Appendix C - FCC and Canadian Regulations FCC Regulations for Telephone Line Interconnection 1. This equipment complies with Part 68 of the Federal Communications Commission (FCC) rules.
72 MT2834ZPX Owner's Manual 6. If trouble is experienced with this equipment (the model of which is indicated below) please contact Multi-Tech Systems, Inc.
73 Appendix C - FCC and Canadian Regulations 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.
74 MT2834ZPX 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.
75 Index Index Symbols &E0 .......................................................................................... 20 &E1 .......................................................................................... 20 &E14 ...............
76 MT2834ZPX Owner's Manual Cannot Make a Connection ..................................................... 51 Carrier Detect .......................................................................... 26 Carrier Detect Response T ime .............
77 Index Dialing a stored telephone ....................................................... 31 Dimensions .............................................................................. 69 DSR follows CD ................................................
78 MT2834ZPX Owner's Manual Intelligent Features .................................................................. 67 Interface ................................................................................... 69 Internet .....................
79 Index N Negotiate V .42 Mode ............................................................... 30 Noise Information .................................................................... 30 Non-volatile RAM .............................................
80 MT2834ZPX Owner's Manual Rreset default values .............................................................. 36 Result Codes ..................................................................... 32, 36 Result codes ...........................
81 Index T ransmission speed ................................................................. 17 T ransmit buf fer size ................................................................. 25 T ransmit Level .............................................
An important point after buying a device Multi-Tech Systems MT2834ZPX (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Multi-Tech Systems MT2834ZPX yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Multi-Tech Systems MT2834ZPX - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Multi-Tech Systems MT2834ZPX you will learn all the available features of the product, as well as information on its operation. The information that you get Multi-Tech Systems MT2834ZPX will certainly help you make a decision on the purchase.
If you already are a holder of Multi-Tech Systems MT2834ZPX, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Multi-Tech Systems MT2834ZPX.
However, one of the most important roles played by the user manual is to help in solving problems with Multi-Tech Systems MT2834ZPX. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Multi-Tech Systems MT2834ZPX along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
