Page 3 - Contents
Contents Chapter 1 - Introduction ................................................................ 51.1 Introduction .............................................................................. 61.2 Features ................................................................................... 61.3 H...
Page 5 - Chapter 1 - Introduction
Page 6 - Features
6 Chapter 1 - Introduction 1.1 Introduction Welcome to the world of data communications. You have acquired one ofthe finest intelligent data/fax modems available today, either the modelMT2834BR or MT2834BLR (MT2834), from Multi-Tech Systems. YourMT2834 modem provides data communication at 33,600-14,...
Page 7 - How to Use This Manual
· Automatic disabling of compression when transferring already- compressed files. · Serial port data rates adjustable to 115.2K bps. · Autodial, redial, pulse (rotary) and touch-tone dial. · Dial tone and busy signal detection for reliable call-progress detection. · Compatibility with the standard A...
Page 8 - Chapter 2 - Installation
Page 12 - Switch Function
12 Chapter 2 - Installation The sixteen DIP-Switches and two berg jumpers control various modemoptions or set default values for the MT2834 Command mode. There is adifference in how several of the switches operate depending on whetheryou are in synchronous or asynchronous mode (DIP-Switch #12). Most...
Page 14 - Switch Position
14 Chapter 2 - Installation Dip Switch Settings #13 - 16 Note: A modem baud rate command (e.g., $MB33600) overrides the setting of the speed selection switches (#13 and #14). Switch Position Effect 13/14 UP/UP* 28.8 K bps Operation (Default) 13/14 DOWN/UP 19.2 K bps Operation 13/14 UP/DOWN 14.4 K bp...
Page 19 - Chapter 3 - Installation
Page 21 - Chapter 3 - Configuration; How Can You Identify Your UART Type?
21 Chapter 3 - Configuration compromised by other serial communications, including printertransmissions and Appletalk, the networking software that allowsMacintoshes to share files. When Appletalk is active it controls all serialcommunications on the Macintosh. Because it gives priority to networkco...
Page 25 - Figure 3-2. The MEW Modem Initialization Setup
25 Chapter 3 - Configuration Figure 3-2. The MEW Modem Initialization Setup * Note that the above and following set up screens are examples found in MultiExpress for Windows (MEW), and that other 3rd party data communicationsoftware is similar but different.
Page 27 - Figure 3-3. MEW Configuration Parameters Screen
27 Chapter 3 - Configuration 3.6 Configuring Software for Your Computer Configure the communications software to match the computer’sconfiguration. If the MT2834 is connected to the COM2 serial port, select"COM2" under the Device drop-down menu. Select the appropriate serial port baud rate. ...
Page 28 - Figure 3-4. MEW Terminal Emulation Setup Screen
28 Chapter 3 - Configuration 3.6.1 Configuring Software for the Remote System You must meet the requirements of the remote system for successfulcommunications. Though the MT2834 can automatically synchronize withthe speed of the other modem, you must specify parameters such as typeof flow control, b...
Page 29 - Figure 3-5. MEW File Transfer Protocols Screen; When to Disable Data Compression
29 Chapter 3 - Configuration 3.6.3 File Transfer Protocols When you upload or download files with your modem, the host computerwill ask which file transfer protocol you want to use. Most communicationsprograms allow you to choose a default protocol. Your software’sdocumentation should list the ones ...
Page 31 - Commands
Page 32 - Modem AT Commands
32 Chapter 4 - Commands 4.1 Modem AT Commands AT commands are the means by which you, and your communicationssoftware, are able to communicate with and configure your modem. Theyenable you to establish, read, and modify parameters in addition to dialing.The following provides a summary and brief exp...
Page 43 - Callback Security Commands
43 Chapter 4 - Commands DEFAULT: n/a DESCRIPTION: Causes modem to wait for ringback, then 5 seconds ofsilence before processing next part of command. COMMAND: +++AT<CR> VALUES: n/a DEFAULT: n/a DESCRIPTION: In-band Escape Sequence. Places modem in Commandmode while still remaining On-Line. Ent...
Page 46 - Password Commands
46 Chapter 4 - Commands You can now use any AT commands of the modem being remotelyconfigured as if they were being entered locally. You cannot change theSet-up of the LOGIN Password until you enter the proper LOGINPassword. 4. When you are done entering AT commands and you want to exit, type AT0 an...
Page 52 - Result Codes
52 Chapter 4 - Commands S36Time 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 modemgoing off-hook. The DTR Busy-out feature is disabled withS36=0. S37Time Between DTR Active and Modem On-Hook Unit:...
Page 55 - AT Commands and S-Register Summary
55 Chapter 4 - Commands 4.3.1 AT Commands and S-Register Summary The vast majority of installations are similar, with the MT2834 being usedto dial up a remote installation where the call is automatically answered.Your MT2834 has a default configuration to dial another 33,600 bpsmodem that support er...
Page 56 - Chapter 5 - Modem Testing
Page 57 - Chapter 5 - Testing the Modem
57 Chapter 5 - Testing the Modem 5.1 Local Analog Loopback Test/V.54 Loop 3 In this test, data from your computer or terminal is sent to your modem'stransmitter, converted into analog form, looped back to the receiver,converted into digital form and then received back at your monitor forverification...
Page 64 - and Service
Page 67 - Chapter 6 - Warranty and Service; Using FlashPro to Upgrade Modem Firmware
67 Chapter 6 - Warranty and Service • check or purchase order number for payment if the modem is out of warranty. (Check with your technical support specialist for currentcharges.) • if possible, note the name of the technical support specialist with whom you spoke. If you need to inquire about the ...
Page 70 - Requirements
Page 74 - Chapter 7 - BABT Requirements
74 Chapter 7 - BABT Requirements 7.1.4 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...
Page 75 - Appendices
Page 77 - Appendix A
77 Appendix A 5. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of theequipment. If this happens, the telephone company will provideadvance notice in order for you to make necessary modifications inorder to maintain unin...
Page 80 - Appendix B
80 Appendix B Flow Control Xon/Xoff, Hardware RTS/CTS, ENQ/ACK, Options Unix-to-Unix Copy Protocol (UUCP) "Spoofing" Mode of Operation Full duplex over both dial-up lines and 2-wireleased lines; automatic or manual dialing,automatic or manual answer Intelligent Features Fully “AT command” co...
Page 83 - Index
Page 84 - Symbols
84 Index Index Symbols &E0 1-32 &E1 1-32 &E14 1-31, 1-32 1.1 Technical Specifica- tions 1-81 A Abort Timer S7 1-51 AGC Dynamic Range 1-84 ASCII code 1-26 AT 1-25 AT command set 1-41 AT Commands and S-Register Summary 1-57 AT&T's "call card" tones 1-34 Auto-answer 1-26, 1-28 B...