MT2834BR/MT2834BLRIntelligent Data/FaxRack Mounted ModemUser Guide

10Chapter 2 - Installation2.2 InstallationPerform the following procedure to install modem cards in the CC916,CC1416, CC2816 or CC1600 racks*. The ins

11Chapter 2 - Installation9. Set both local and remote modems to either Normal (&E0&W0) modeor to Reliable (&E2&W0) mode.10. Verify le

12Chapter 2 - InstallationThe sixteen DIP-Switches and two berg jumpers control various modemoptions or set default values for the MT2834 Command mode

13Chapter 2 - InstallationSwitch Function Position Effect#5 Answer/Originate* UP* Originate call in(Async/Sync/Leased Line) DOWN Lease Line mode#6 Max

14Chapter 2 - InstallationDip Switch Settings #13 - 16Note: A modem baud rate command (e.g., $MB33600) overrides thesetting of the speed selection swi

15Chapter 2 - Installation2.4.1 Out of Service/Test JumperWhen the MT2834 is Out Of Service (OOS), it is busy to incoming calls. Inthe Test (default)

16Chapter 2 - Installation2.5 Dial-Up and Leased LinesConnection to the phone system is made via RJ11 type jacks such as anRJ11C or RJ11W. It can als

17Chapter 2 - Installation2.6 Modem LED IndicatorsThe MT2834 has ten LED diagnostic indicators.1. Receive Data (RCV). This LED blinks when data is bei

18Chapter 2 - Installation10. Error (ERR). When the ERR LED is flashing, the leased line is downand the modem is in self-test mode has failed. When ER

Chapter 3 - Installation

MT2834BR/MT2834BLR User GuidePN: S000316Copyright ©2003 by Multi-Tech Systems, Inc.All rights reserved. This publication may not be reproduced, in who

20Chapter 3 - Configuration3.1 IntroductionSince your communications software configuration is affected by thecapabilities of your computer, this chap

21Chapter 3 - Configurationcompromised by other serial communications, including printertransmissions and Appletalk, the networking software that allo

22Chapter 3 - ConfigurationFigure 3-1. MSD UART Identification, Screen 1Figure 3-2. MSD UART Identification, Screen 2

23Chapter 3 - Configuration3.3 Configuring Your SoftwareCommunications software must be configured to work with your modem,your computer, and the remo

24Chapter 3 - Configuration3.4 PC Initialization StringsWe recommend the following initialization string for a MT2834 connectedto a PC-compatible comp

25Chapter 3 - ConfigurationFigure 3-2. The MEW Modem Initialization Setup* Note that the above and following set up screens are examples found inMulti

26Chapter 3 - Configuration3.4.1 Changing Default ParametersThe default values for the other parameters in modem configuration menusrarely need changi

27Chapter 3 - Configuration3.6 Configuring Software for Your ComputerConfigure the communications software to match the computer’sconfiguration. If th

28Chapter 3 - Configuration3.6.1 Configuring Software for the Remote SystemYou must meet the requirements of the remote system for successfulcommunica

29Chapter 3 - Configuration3.6.3 File Transfer ProtocolsWhen you upload or download files with your modem, the host computerwill ask which file transf

ContentsChapter 1 - Introduction ... 51.1 Introduction ...

30Chapter 3 - ConfigurationThe command to disable compression is AT &E14 <CR>. If you have anolder UART or if you use your modem mostly for

Chapter 4 - ModemCommands

32Chapter 4 - Commands4.1 Modem AT CommandsAT commands are the means by which you, and your communicationssoftware, are able to communicate with and c

33Chapter 4 - CommandsCOMMAND: $AnVALUES: n = 0 or 1DEFAULT: $A0DESCRIPTION: $A0 discards data during auto-reliable time period. $A1buffers data durin

34Chapter 4 - CommandsVALUES: n = 0, 1, 2 or 4DEFAULT: &C1DESCRIPTION: &C0 forces Carrier Detect on.&C1 lets Carrier Detect act normally.&

35Chapter 4 - CommandsVALUES: n = 0 or 1DEFAULT: %DP0DESCRIPTION: %DP0 selects do not read Line Probe Information fromDSP during handshaking.%DP1 sele

36Chapter 4 - CommandsVALUES: n = 0 thru 2DEFAULT: #F2DESCRIPTION: #F0 means no fallback when on-line.#F1 means fallback from 33600 to 4800 bps when o

37Chapter 4 - CommandsVALUES: n = 1 thru 3DEFAULT: Read Only CommandDESCRIPTION: $H1 brings up Help Screen #1.$H2 brings up Help Screen #2.$H3 brings

38Chapter 4 - CommandsVALUES: n = speedDEFAULT: $MB33600 bpsDESCRIPTION: $MB75 selects CCITT V.23 mode.$MB300 selects 300 bps on-line.$MB1200 selects

39Chapter 4 - CommandsVALUES: n = 0, 1 or 2DEFAULT: Q0DESCRIPTION: Q0 selects Result Codes displayed.Q1 selects Result Codes suppressed (quiet).Q2 sel

4.2 S-Registers... 484.3 Result Codes...

40Chapter 4 - CommandsVALUES: r = 0-11, 13, 15-17, 24-26, 29, 30, 32, 34, 36, 37, 48DEFAULT: n/aDESCRIPTION: Reads value of S-Register “r” and display

41Chapter 4 - CommandsVALUES: n = 4 or 5DEFAULT: &T5DESCRIPTION: &T4 selects Enable Response to Request for RemoteDigital Loopback.&T5 sel

42Chapter 4 - CommandsDEFAULT: X0DESCRIPTION: X0 selects Basic Result Codes (w/o CONNECT 1200,CONNECT 2400).X1 selects Extended Result Codes (w/CONNEC

43Chapter 4 - CommandsDEFAULT: n/aDESCRIPTION: Causes modem to wait for ringback, then 5 seconds ofsilence before processing next part of command.COMM

44Chapter 4 - CommandsDEFAULT: n/aDESCRIPTION: Callback password with xxxxxx being callback passwordand yy being the memory location. Callback passwo

45Chapter 4 - Commands4.1.2 Remote ConfigurationThe Remote Configuration feature is a network management tool thatallows you to configure modems remot

46Chapter 4 - CommandsYou can now use any AT commands of the modem being remotelyconfigured as if they were being entered locally. You cannot change t

47Chapter 4 - CommandsCOMMAND: CSPsVALUES: n/aDEFAULT: n/aDESCRIPTION: The CSP command will change the serial baud rate of yourmodem by entering CSPss

48Chapter 4 - Commands4.2 S-RegistersCertain Command Mode configurations are stored in memory registerscalled, S-Registers. The S command is used to

49Chapter 4 - CommandsS4Line Feed CharacterUnit: ASCII CharacterRange: 0-127Default: 10Description: Defines the character recognized as LINE FEED.S5Ba

Chapter 1 - Introduction

50Chapter 4 - CommandsS10Carrier Loss Disconnect Delay TimeUnit: 100 mSec.Range: 0-255Default: 7Description: Sets the time a carrier signal must be lo

51Chapter 4 - CommandsS25DTR Dropout TimeUnit: 100 mSec.Range: 0, 1 through 255Default: 0Description: Defines DTR dropout time. 0 default equals 50ms.

52Chapter 4 - CommandsS36Time Between DTR Inactive and Modem Off-HookUnit: 1 SecondRange: 0-255 secondsDefault: 0Description: Sets the time between DT

53Chapter 4 - CommandsTERSE VERBOSE0OK1 CONNECT2 RING3 NO CARRIER4 ERROR5 * CONNECT 12006 NO DIALTONE7 BUSY8 NO ANSWER9 * CONNECT 240011 * CONNECT 480

54Chapter 4 - CommandsTERSE VERBOSE0OK1 CONNECT2 RING3 NO CARRIER4 ERROR5 CONNECT 12006 NO DIAL TONE7 BUSY8 NO ANSWER10 CONNECT 240011 CONNECT 480012

55Chapter 4 - Commands4.3.1 AT Commands and S-Register SummaryThe vast majority of installations are similar, with the MT2834 being usedto dial up a r

Chapter 5 - Modem Testing

57Chapter 5 - Testing the Modem5.1 Local Analog Loopback Test/V.54 Loop 3In this test, data from your computer or terminal is sent to your modem'

58Chapter 5 - Testing the ModemATU1 and hit ENTER to place the modem in Analog Loopback mode, inthe Answer mode. Then repeat step 3.5. When testing is

59Chapter 5 - Testing the Modem2. Dial the remote modem by entering the Dial command and the phonenumber, to establish On-line mode.3. Type the Escape

6Chapter 1 - Introduction1.1 IntroductionWelcome to the world of data communications. You have acquired one ofthe finest intelligent data/fax modems

60Chapter 5 - Testing the Modem5.3 Digital Loopback Test/V.54 Loop 2(Remote/Automatic)In this test, your modem must be On-line with another modem set

61Chapter 5 - Testing the Modem5.4 Local Analog Loopback Test (Synchronous Mode)To initiate the Local Analog Loopback Test, with the modem inSynchrono

62Chapter 5 - Testing the Modem5.5 Digital Loopback Test (Local/Manual)(Synchronous Mode)This test must be run when you have a data connection with an

63Chapter 5 - Testing the Modem5.6 Digital Loopback Test (Remote/Automatic) (Synchronous Mode)This test must be run when you have a dat

Chapter 6 - Warrantyand Service

65Chapter 6 - Warranty and Service6.1 IntroductionThis chapter starts out with statements about your modem's 2-yearwarranty. The next section, Te

66Chapter 6 - Warranty and Service6.3 Tech SupportMulti-Tech has an excellent staff of technical support personnel availableto help you get the most o

67Chapter 6 - Warranty and Service• check or purchase order number for payment if the modem is out ofwarranty. (Check with your technical support spec

68Chapter 6 - Warranty and Serviceand select the rate you want to program at. Hit ESC whenfinished.5. Highlight the "Select File to Program&quo

69Chapter 6 - Warranty and Service6.6 InternetMulti-Tech is a commercial provider on the Internet, and we retrievee-mail messages from the following m

· Automatic disabling of compression when transferring already-compressed files.· Serial port data rates adjustable to 115.2K bps.· Autodial, redial,

Chapter 7 - BABTRequirements

71Chapter 7 - BABT Requirements7.1 Compliance with BABT RequirementsApproved for connection to telecommunications system specified in theinstructions

72Chapter 7 - BABT Requirements7.1.1 European Low Voltage DirectiveWhen correctly installed and maintained, the modem will present nohazard to the use

If a telephone or other device is connected in parallel with the modem, thecombined REN must not exceed 4. A BT supplied telephone may beassumed to ha

74Chapter 7 - BABT Requirements7.1.4 Compliance with BS6328 Part 1a. The modem is not suitable for use on circuits with BritishTelecommunications sign

Appendices

76Appendix AAppendix A FCC Regulations for Telephone Line Interconnection1. This equipment complies with Part 68 of the Federal CommunicationsCommissi

77Appendix A5. The telephone company may make changes in its facilities, equipment,operations, or procedures that could affect the operation of theequ

78Appendix ACanadian Limitations NoticeNotice: The ringer equivalence number (REN) assigned to each terminaldevice provides an indication of the maxim

79Appendix BAppendix BTechnical SpecificationsYour MT2834BR/BRL data/fax modem meets the specifications listedbelow:Model Numbers MT2834BR, MT2834BRI,

Chapter 2 - Installation

80Appendix BFlow Control Xon/Xoff, Hardware RTS/CTS, ENQ/ACK,Options Unix-to-Unix Copy Protocol (UUCP) "Spoofing"Mode of Operation Full dupl

81Appendix BFrequencies 1650Hz Mark, 1850Hz Space for TransmitOriginate; 1650Hz Mark, 1850Hz Space forTransmit Answer; V.27ter 1800Hz Originate/Answer

82Appendix BFrequency Stability ±0.01%Receiver Sensitivity -43 dBm under worst case conditionsAGC Dynamic Range 43 dBInterface EIA RS232C/ITU-TSS V.24

Index

84IndexIndexSymbols&E0 1-32&E1 1-32&E14 1-31, 1-321.1 Technical Specifica-tions 1-81AAbort TimerS7 1-51AGC Dynamic Range 1-84ASCII code 1-

85IndexClear to Send 1-41cleardown on disconnect 1-36COM portsCOM2 1-29Command Buffer 1-82Command mode characters control 1-37Command string 1-26Comma

86IndexData Terminal Ready 1-19Datacomm software 1-22, 1-25, 1-26, 1-29, 1-30, 1-31Configuration 1-25, 1-29, 1-30Diagnostics 1-84Dial-Up and Leased Li

87IndexInactivity Timer 1-53S30 1-53Indicators 1-84Initialization strings 1-25, 1-28, 1-32Macintosh 1-28PC-compatible 1-26Installation 1-12Intelligent

88IndexChanging defaults 1-28Parity 1-25pause during dialing 1-44Pause Time for Comma 1-51S8 1-51PBX/CBX Disconnect DropTime for DSR/CTS/CD 1-52S24 1-

89Index39Signal to Noise Ratio Informa-tion 1-39SIT files 1-31Speed Conversion 1-81speed conversion 1-35Standard AT command setresponses 1-54"St

9Chapter 2 - Installation2.1 Preliminaries This chapter covers MT2834 installation and connection. In addition to thecontents of the MT2834 package

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