Multi-Tech Systems MT2834BL - Manuals
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Manual Multi-Tech Systems MT2834BL
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User Guide S000300B Revision B MultiModem II Models: MT2834BA, MT2834BAI, MT2834BL, MT2834BLI This publication may not be reproduced, in whole or in part, without prior expressed written permissionfrom Multi-Tech Systems, Inc. All rights reserved. Copyright 2004©, by Multi-Tech Systems, Inc. Multi-T...
Contents Chapter 1 - Introduction and Description ......................................................................... 5 1.1 Introduction ...................................................................................................................................... 6 1.2 How To Use This ...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 6 1.1 Introduction Welcome to the world of data communications. You have acquired one of the finest intelligentdesktop data/fax modems available today, the MultiModem II BA/BL series modem, from Multi- Te...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7 Chapter 6 - S-Registers Chapter 6 covers the modem's S-Registers, which enable the user to establish, read, and modifyvarious modem options. All of the S-Registers are charted and explained, followed by...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 8 1.3.1 MT2834BA/BL Series Features Your MT2834BA/BL modem meets the proposed Enhanced V.34 ITU standard for data signallingrates as high as 33.6/31.2K bps in full duplex mode. Enhanced V.34 is an extensi...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 9 1.5 Technical Specifications Your data/fax modem meets the specifications listed below: Tradename MultiModem IITM Model Numbers MT2834BA, MT2834BAI, MT2834BL, MT2834BLI Data Rates (modem) 33,600, 31,200...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 10 Fax Modulations V.21CH2 FSK at 300 bps, V.27ter DPSK at 4800 and 2400 bps,V.29 QAM at 9600 and 7200 bps, V.17 TCM at 14400, 12000, 9600,and 7200 bps Transmit Level -11dBm (dial-up), -9 or -15 dBm (leas...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 11 1.7 Modem LED Indicators The MultiModem diagnostic LED indicators are shown in Figure 1-1 and Figure 1-2. FX EC TR OH 24 96 14.4 19.2 24.0 28.8 CD RD SD MT2834BA Series Intelligent Modem Voice/ Data An...
Chapter 1 - Introduction and Description Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 12 1.8 Controls on PC Board The MultiModem is designed on a single printed circuit (PC) board. This board contains one 16-position DIP-Switch (numbered 1-16). The DIP-Switches are accessible through a cut...
Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Chapter 2 - Installation and Connection 14 2.1 What Is in Your Modem Package? Your MultiModem is made up of many components. Make sure you have them all before trying tooperate your modem. Your package should include: · MT2834BA or MT2834BL data...
Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Chapter 2 - Installation and Connection 16 2.3 Installing PhoneTools, the Data Communications Software Data communications software is designed to send and receive messages. Multi-Tech includes adata communications software program, PhoneTools, ...
Chapter 3 - Software Configuration and Modem Basics
18 Chapter 3 - Software Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 3.1 Introduction Chapter 2 described the installation of PhoneTools, a communications software. If you are using adifferent software package, there are some points you should take into consideration. Since y...
19 Chapter 3 - Software Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 3.3.1 Changing Default Parameters By default, the modem will answer after the first ring and try to communicate with a modem on theother end of the line. If you have one telephone line for voice, fax, and mo...
20 Chapter 3 - Software Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 3.5 Modem Basics You control your modem by issuing AT commands, setting S-Registers, and setting DIP-Switches.You can easily change the settings of your DIP-Switches, as they are located on the right side of...
23 Chapter 4 - Manual Dial and Automatic Answer Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4.3 Automatic Leased Line Restoral Operation When the modem is in Dial Backup mode, it periodically checks the leased line to see if it'soperational and tries to restore the leased line if possible...
24 Chapter 4 - Manual Dial and Automatic Answer Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4.6 Dial-Up Operation When your modem is used as a dial-up modem (DIP-Switch #10 in the UP position), it can bothoriginate and answer calls. To originate calls, you use the automatic dialing capabi...
25 Chapter 4 - Manual Dial and Automatic Answer Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4.8 Automatic Answering The modem can be used as an automatic answering modem. No special modifications or settings arerequired other than making sure that the Auto-Answer select switch is set to A...
26 Chapter 4 - Manual Dial and Automatic Answer Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4.10 Handshaking Details This section briefly explains what happens between two modems in a normal call. We are assumingthat there are MultiModems at both the originating and at the answering end o...
29 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Dial ( D or A ) command, or incoming phone call Carrier detected HANG UP ON-LINE MODE WAIT FOR CARRIER COMMAND MODE AT0 Command +++AT No carrier detected Carrier lost Figure 5-1. Functional Modes 5.2 Summary of AT Com...
32 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.3 Result Codes The Command mode provides you with several responses, or “Result Codes”, that can aid you inCommand mode operation. These Result Codes are displayed on your monitor. You can choose result codes that c...
33 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4 Dialing Commands 5.4.1 Dialing Action Commands Dial Command D The letter D in a command causes the modem to dial the telephone number immediately following it.For example, if you enter ATD5551212 and hit RETURN, t...
34 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide To activate DTR Dialing, enter AT$D1 and hit RETURN. The modem dials the phone number storedin the N0 location of memory when it receives a high DTR signal. DTR must remain high for theduration of the call, until disc...
35 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Automatic Pauses in Dialing , You can cause the modem to pause during the dialing sequence by entering a comma characterwhere the pause is desired. This pause lasts two seconds. If a longer pause is desired, more than...
36 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide "Calling Card" Detect Tones $ The modem has the capability to detect AT&T "calling card" tones for the purpose of utilizing theuser's calling card number to originate an on-line connection. An $ sy...
37 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.3 Phone Number Memory Commands Storing Phone Numbers D...N A telephone number and command line of up to sixty characters may be stored in the modem’snumber memory. As many as ten of these numbers may be stored. Ea...
38 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.4 Configuration and Default Storage Commands Store Configuration & S-Register Parameters in Non-Volatile Memory &W The modem can store configuration parameters and S-Register values in its nonvolatile read...
39 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Unix UUCP Spoofing $SP The modem can be configured in a Unix environment that employs ACK flow control as a means ofmonitoring data integrity. The modem can do “UUCP spoofing”, where the modem is able to generateACKs ...
40 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.5 Command Response (Result Code) Commands Echo Command Mode Characters E If the modem is connected to a full-duplex computer, it may be necessary for the modem to beconfigured to echo back characters entered while...
41 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Result Codes (Basic and Extended) and Call Progress Selection X The X Command is used to select one of two possible dialing methods (“dumb” or “smart”), and toselect various response combinations related to these meth...
42 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.6 Phone Line Conditioning Commands Guard Tones (Not Used in BAI/BLI Models) &G The &G command is used to control the presence or absence of guard tones from the transmitterwhen in Answer mode, at either 12...
43 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Fallback Modes When On-Line #F If line conditions deteriorate, the modem automatically drops its transmission speed (“fallback”). The#F command controls the different ways the modem falls back. During operation, if th...
44 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.7 RS-232C Interface Control Commands Carrier Detect Control &C The &C command allows you to control the status of the Carrier Detect signal (CD-Pin 8) on the RS-232C line. You have four choices. You can fo...
45 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Data Set Ready Control &S The &S command allows you to control the status of the Data Set Ready signal (DSR - pin 6) on theRS-232C interface. You have three choices. You can force the signal high, allow it to ...
46 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.8 Error Correction Commands You can use AT commands to place your modem one of three V.42 (error correction) modes ofoperation. These are the Normal, Auto-Reliable, and Reliable modes. Normal Mode &E0 In Norma...
48 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Enable/Disable Auto Reliable Fallback Character $F In Auto-Reliable mode, the modem is given four seconds to establish a Reliable connection. If asingle CARRIAGE RETURN is received from the remote modem during this fo...
49 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.9 Flow Control Commands Flow control refers to the techniques used by computer devices to stop and restart the flow of data toand from each other. Flow control is necessary so that a device does not receive more d...
51 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Normal Mode Modem Flow Control On &E11 When two MultiModems are connected in Normal mode (not using error correction), Xon/Xoff can beused to control the flow of data between the modems. Flow Control can be turned...
52 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing Commands The modem has a variety of commands to control its error correction and data compression options.These additional commands are liste...
53 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.11 Speed Conversion Commands Speed conversion is a necessary part of data compression since data must be presented to themodem faster than it can handle data, if data compression is to be effective. Speed conversi...
54 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Serial Port Baud Rate $SB The $SB command presets the speed of the modem’s serial (RS-232C) port, in both Originate andAnswer modes. Speed conversion allows you to set this serial port baud rate at a fixed speed of up...
55 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 5.4.12 Immediate Action Commands Help Screens $H The Help command is designed to give you short explanations on how to use each modemcommand. The Help command can be quite useful if your manual is not handy and you ar...
56 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Listing On-Line Diagnostics L8 The L8 command displays the current on-line CONNECT status of the modem. This display can beprinted and used as a modem status report or as diagnostic information (such as when calling T...
57 Chapter 5 - Command Mode Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Force Answer Mode A You can force the modem into Answer mode with the modem’s A command. Entering ATA when in Command mode immediately brings your modem off-hook, out of Commandmode and into On-Line Answer mode, and c...
67 Chapter 6 - S-Registers Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 6.3 AT Command and S-Register Summary The vast majority of installations are similar, with the modem being used to dial up a remoteinstallation where the call is automatically answered. Your modem has a default configu...
Chapter 7 - Callback Security and Remote Configuration
70 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7.3 Remote Configuration Description The Remote Configuration feature is a network management tool that allows you to configuremodems remotely. This means you could configure modems anywh...
71 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide To turn your modem's Callback Security feature on and off: 7. If you want Callback Security with both remote and local password security, enter AT#DB1 andhit RETURN. You must turn on Call...
72 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide The + and/or - characters entered before the phone number are optional. The + (DepositNumber) code allows a caller to enter the number he or she wishes the Callback modem to callback when...
73 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7.3.2 Remote Configuration Procedures The procedures for using the Remote Configuration features are the same whether or not a calloriginates from the remote modem. Once the modem is on-l...
74 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7.4 Remote Configuration and Callback Security AT Commands When you have callback security enabled for the modem, anyone trying to connect with the modemwill be required to furnish a pass...
75 Chapter 7 - Callback Security and Remote Configuration Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7.5 Remote Configuration/Callback Security S-Registers The following S-Registers are used with Remote Configuration and Callback Security features. Remote Configuration Character (S13) S1...
78 Chapter 8 - Dip-Switch Settings Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 8.2 DIP-Switch Option Settings Switch #1Forced DTR -- "DTR"(Asynchronous/Synchronous Mode/Leased Line/Dial-Up) The modem must have a high DTR signal in order to operate. DTR is provided to the modem by ...
83 Chapter 8 - Dip-Switch Settings Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Switch #16 (MT2834BA Only)(Reserved for Future Use) Switch #16 (MT2834BL Only)2 Wire/4 Wire Operation(Asynchronous/Synchronous Mode) The modem works over either 2-wire or 4-wire leased lines. To select 4-wire o...
84 Chapter 8 - Dip-Switch Settings Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 8.4 Recording Option Configurations This section lets you record any changes you may have made to the DIP-Switch settings. Circle theappropriate setting and record the effect for future reference. DIP-Switches ...
87 Chapter 9 - Warranty, Service, and Technical Support Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 9.1 Introduction This chapter starts out with statements about your modem's warranty and repair procedures. Thenext sections cover online warranty registration, replacement parts, and techn...
88 Chapter 9 - Warranty, Service, and Technical Support Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Please direct your questions regarding technical matters, product configuration, verification that theproduct is defective, etc., to our Technical Support department at (800) 972-2439 or em...
89 Chapter 9 - Warranty, Service, and Technical Support Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 9.4 Replacement Parts SupplyNet, Inc., can supply you with replacement power supplies, cables and connectors for selectedMulti-Tech products. You can place an order with SupplyNet via mail,...
91 Appendix A - Upgrading Your Modem’s Firmware Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix A - Upgrading Your Modem’s Firmware Your modem is controlled by semi-permanent software, called firmware, which is stored in flashmemory. Firmware is nonvolatile; that is, it remains store...
92 Appendix A - Upgrading Your Modem’s Firmware Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4. If the firmware version number matches the firmware version number found in “Step 1: Identify the Modem Firmware,” you have the current firmware version and do not need to be update. 5. If the f...
93 Appendix A - Upgrading Your Modem’s Firmware Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 4. Type AT&W1Z and press E NTER to clear your stored parameters and reset your modem to factory default. 5. Close the terminal program. Step 6: Upgrade the Modem’s Firmware Before you begin the...
94 Appendix B - Troubleshooting Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix B - Troubleshooting Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make asuccessful connection or if you experience data loss or garbled characters during your...
96 Appendix B - Troubleshooting Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide The Modem Dials But Cannot Make a Connection There can be several reasons the modem fails to make a connection. Possibilities include · lack of a physical connection to the telephone line. · a wrong dial tone. · a...
97 Appendix B - Troubleshooting Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide The Modem Disconnects While On-line · If you have call waiting on the same phone line as your modem, it may interrupt your connectionwhen someone tries to call you. If you have call waiting, disable it before each...
98 Appendix B - Troubleshooting Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide I Am Getting Garbage Characters on the Monitor · Your computer and the remote computer may be set to different word lengths, stop bits, orparities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-ve...
99 Appendix C - AT Command Summary Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix C - AT Command Summary Command Values Description AT Attention Code that precedes most command stringsexcept A/, A: and Escape Codes. RETURN Pressing RETURN key executes most commands. $ This symbol pl...
105 Appendix C - AT Command Summary Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Callback Security/Remote Configuration Command Summary Command Description #DBn #DB0 disables Callback Security and answering Yesto the prompt turns off Callback Security and erasesstored phone numbers and pas...
106 Appendix C - AT Command Summary Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Password Command Summary Command Description #Ixxxxxxxxxx Login Password is any keyboard characters (x)(upper/lower case sensitive), minimum 6 andmaximum 10 characters. The default LoginPassword is #IMULTI-TEC...
107 Appendix D - V.25bis Operation Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix D - V.25bis Operation Chapter 4 described a set of commands which let the modem dial, hang-up, and be configured for variousapplications. However, these commands, the AT command set, are only functiona...
108 Appendix D - V.25bis Operation Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide V.25bis Set-Up and Initialization Before you operate your modem in the V.25bis mode, you need to make sure it is set up properly(various RS-232 lines such as DSR and CTS act as specified in the V.25bis standard...
111 Appendix D - V.25bis Operation Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide ITU V.25bis Country Specific Information Due to the flexibility of the V.25bis standard, each country may establish specific regulations governingthe way operations are handled. The purpose of this document is ...
113 Appendix E - MultiModemBA/BL Cables Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix E - MultiModemBA Cables These cables connect your modem to your terminal or computer’s serial port. 25-PIN DTE Connector 25-PIN DCE Device 2 TD 3 RD 4 RTS 5 CTS 6 DSR 7 GND 8 CD 20 DTR 22 RI TD 2 ...
114 Appendix F - Regulatory Information Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Appendix F - Regulatory Information FCC Part 15 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 ofthe FCC Rules. These limits are design...
115 Appendix F - Regulatory Information Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Canadian Limitations Notice Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximumnumber of terminals allowed to be connected to a telephone inte...
116 Appendix F - Regulatory Information Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide 7. Some parameters required for compliance with Telecom’s Telepermit requirements are dependent on theequipment (PC) associated with this device. The associated equipment shall be set to operate within the...
117 Index Multi-Tech Systems, Inc. MT2834BA/BL Series User Guide Index Symbols 2 Wire/ 4 Wire Operation .................................... 832 Wire/4 Wire Operation ..................................... 83 A Abort Timer ......................................................... 60Answer Mode .........
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