Multitech MT1432BA Manual de usuario

BA-SeriesIntelligent Data/Fax ModemUser Guide

10MultiModemBA User Guide1.3 Modem FeaturesThe MultiModem BA Series modem connections can be made on Public Switched TelephoneNetworks (PSTNs) and/or

100MultiModemBA User Guide8.3 Digital Loopback Test/V.54 Loop 2 (Local/Manual)In this test, your modem must be On-Line with another modem that can res

101Chapter 8 - Modem Testing8.4 Digital Loopback Test/V.54 Loop 2 (Remote/Automatic)In this test, your modem must be On-line with another modem set up

102MultiModemBA User Guide8.5 Back-to-Back TestThis test lets you connect two MultiModems with an RJ-11 cable to verify proper operation. Using amodem

103Chapter 8 - Modem Testing8.6 Synchronous Mode TestingThe following tests must be run with your modem in Synchronous mode (DIP Switch #12 in the Up(

104MultiModemBA User Guide8.8 Digital Loopback Test (Local/Manual) (Synchronous Mode)This test must be run when you have a data connection with anothe

105Chapter 8 - Modem Testing8.9 Digital Loopback Test (Remote/Automatic) (Synchronous Mode)This test must be run when you have a data connection with

106MultiModemBA User Guide

Chapter 9 - DIP-Switch Settings

108MultiModemBA User Guide9.1 IntroductionThere are several DIP-Switch options on the modem’s printed circuit (PC) board. The DIP-Switchesare accessib

109Chapter 9 - DIP-Switch Settings9.2 DIP-Switch Option SettingsSwitch #1Forced DTR -- "DTR"(Asynchronous/Synchronous Mode/Leased Line/Dial-

11Chapter 1 - Introduction and Description1.4 Fax FeaturesYour modem meets the ITU V.17 standard for sending and receiving faxes. When linked to acomp

110MultiModemBA User GuideSwitch #3dB Transmission Levels(Asynchronous/Synchronous Mode/Leased Line)2834 Series:DIP-Switch #3 adjusts dB transmission

111Chapter 9 - DIP-Switch SettingsSwitch #5Enable/Disable Auto-Answer - "Ans"(Asynchronous Mode/Synchronous Mode/Dial-Up)In some originate-o

112MultiModemBA User GuideSwitch #7Request To Send Forced - "RTS"(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)If your computer or term

113Chapter 9 - DIP-Switch SettingsSwitch #11"AT" Responses/Multi-Tech Responses(Asynchronous Mode/Leased line/Dial-Up)In Asynchronous mode,

114MultiModemBA User Guide1432 Series:14400 bps Operation = Switch #13 UP and Switch #14 UP9600 bps Operation = Switch #13 DN and Switch #14 UP4800 bp

115Chapter 9 - DIP-Switch Settings9.3 Speaker Volume ControlYou can adjust the volume of the modem’s phone-line monitor speaker with a volume control

116MultiModemBA User Guide#11 Internal*/External Clocking UP(Synchronous) DOWN*#12 Sync/Async Mode* UPDOWN** Factory Default SettingDIP Switches #13-1

Chapter 10 - Warranty, Service and Tech Support

118MultiModemBA User Guide10.1 IntroductionThis chapter starts out with statements about your modem's 5-year warranty. The next section, TechSupp

119Chapter 10 - Warranty, Service and Tech Support10.3 Tech SupportMulti-Tech has an excellent staff of technical support personnel available to help

12MultiModemBA User Guide1.5 Technical SpecificationsYour data/fax modem meets the specifications listed below:Tradename MultiModemIITMModel Numbers28

120MultiModemBA User Guide10.5 The Multi-Tech BBSFor customers who do not have Internet access, Multi-Tech maintains a bulletin board system (BBS)that

121Chapter 10 - Warranty, Service and Tech Support10.5.2 Upgrading the MultiModemThe MultiModem has a Flash PROM which contains firmware code for the

122MultiModemBA User Guide10.8 About Ordering AccessoriesSupplyNet, Inc. can supply you with replacement transformers, cables and connectors for selec

Appendixes

124MultiModemBA User GuideAppendix A - TroubleshootingYour modem was thoroughly tested at the factory before it was shipped. If you are unable to make

125Appendix A - Troubleshooting• If you don’t get an OK, the problem may still be in the communications software. Make sure youhave done whatever is n

126MultiModemBA User GuideThe Modem Dials But Cannot Make a ConnectionThere can be several reasons the modem fails to make a connection. Possibilities

127Appendix A - TroubleshootingThe Modem Disconnects While On-line• If you have call waiting on the same phone line as your modem, it may interrupt yo

128MultiModemBA User GuideI Am Losing Data• If you are using data compression and a high speed serial port, set the serial port baud rate tofour times

129Appendix B - ASCII Conversion ChartAppendix B - ASCII Character Code/Hex/Decimal Conversion ChartCTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE

13Chapter 1 - Introduction and DescriptionData CompressionAll models: V.42bis, (4:1 throughput) or MNP 5 (2:1 throughput) datacompressionSpeed Convers

130MultiModemBA User GuideAppendix C - Dial Pulse and Tone-Dial FrequenciesDial PulsesClosedOpenBADigit 2 Digit 1In the example above, the digit 2 is

131Appendix D - AT Command SummaryAppendix D - Command SummaryCommand Values DescriptionAT Attention Code that precedes most command stringsexcept A/,

132MultiModemBA User GuideCommand Values DescriptionBn n = 0 or 1 * B0 selects V.21 answer tone.B1 selects Bell answer tone.&Bn n = 0 or 1 * &

133Appendix D - AT Command SummaryCommand Values Description&En n = 0 thru 15 &E0 means no error correction.* &E1 means V.42 Auto-reliable

134MultiModemBA User GuideCommand Values Description$Hn n = 1 thru 3 $H1 brings up Help Screen #1.$H2 brings up Help Screen #2.$H3 brings up Help Scre

135Appendix D - AT Command SummaryCommand Values Description932 Series:$MB75 selects CCITT V.23 mode.$MB300 selects 300 bps on-line.$MB1200 selects 12

136MultiModemBA User GuideCommand Values DescriptionSr? r = 0-11, 13, Reads value of Register “r” and displays15-19, 24-26, value in 3-digit Decimal f

137Appendix D - AT Command SummaryCommand Values DescriptionUn n = 0, 1, 2, or 3 U0 places modem in Analog Loop Originate Mode.U1 places modem in Anal

138MultiModemBA User GuideCommand Description+++AT<CR> In-band Escape Sequence. Places modem inCommand Mode while still remaining On-Line. Enter

139Appendix D - AT Command SummaryPassword Command SummaryCommand Description#Ixxxxxxxxxx Login Password is any keyboard characters (x)(upper/lower ca

14MultiModemBA User GuideFax Carrier FrequenciesAll Models: V.21CH2 (Half Duplex)1650Hz Mark, 1850Hz Space for Transmit Originate1650Hz Mark, 1850Hz S

140MultiModemBA User GuideAppendix E - DIP-Switch SummaryAsynchronous ModeDIP-Switch Condition Effect#1 UP* DTR dependent on interfaceDown DTR forced

141Appendix E - DIP-Switch SummarySynchronous ModeDIP-Switch Condition Effect#1 UP* DTR Dependent On interfaceDown DTR forced On at all times#2 UP* SD

142MultiModemBA User GuideDIP Switches #13-14Note: The modem baud rate command ($MBn) overrides the setting of these speed selectionswitches (DIP swit

143Appendix F - S-Register SummaryAppendix F - S-Register SummaryS-REGISTER UNIT RANGE DEFAULT DESCRIPTIONS0 1 ring 0-255 1 Sets number of rings befor

144MultiModemBA User GuideS-REGISTER UNIT RANGE DEFAULT DESCRIPTIONS29 1 1-255 20 Specifies the amount of idle time can elapsebetween AT commands afte

145Appendix G - Result Code SummaryAppendix G - Result Code SummaryTERSE (Digit) VERBOSE (Words) Effect0 OK Command was executed without error; ready

146MultiModemBA User GuideNote: If the modem is used in MNP Reliable mode, the following responses change:1R CONNECT RELIABLE5R CONNECT 1200 RELIABLE9

147Appendix H - V.25bis OperationAppendix H - V.25bis OperationChapter 5 described a set of commands which let the modem dial, hang-up, and be configu

148MultiModemBA User GuideAnother asynchronous mode concern is the problem of connecting at a different speed than thespeed at which the serial port i

149Appendix H - V.25bis OperationV.25bis Mode AT CommandsThe following commands will either alter standard V.25bis behavior (so you must be careful in

15Chapter 1 - Introduction and DescriptionReceiver SensitivityAll models: -43 dBm under worst case conditionsAGC Dynamic RangeAll models: 43 dBInterfa

150MultiModemBA User GuideV.25bis AT CommandsThe AT commands associated with V.25bis mode are described as follows. Note that one commandenables and d

151Appendix H - V.25bis OperationListing Delayed Phone Numbers (RLD) CommandWhen a phone number is dialed by a CRN command and a connection is not mad

152MultiModemBA User GuideITU V.25bis Country Specific InformationDue to the flexibility of the V.25bis standard, each country may establish specific

153Appendix H - V.25bis Operation4. Francea) Command/Indication modification (none)b) Delay and Forbidden list behavior1. 2 min. delay after 1st call,

154MultiModemBA User GuideAppendix I - MultiModemBA CablesThese cables connect your modem to your terminal or computer’s serial port.25-PIN DTEConnect

155Appendix J - RS-232C Interface Specifications25 POSMALE DSUB8 POS.MINI-DINTD 2RCV 3RTS 4CTS 5GND 71 Handshake Out2 Handshake In4

156MultiModemBA User GuideAppendix J - RS-232C Interface SpecificationsThe modem's RS-232C interface circuits have been designed to meet the elec

157Appendix J - RS-232C Interface SpecificationsFunctional Description of RS-232C Signals:Transmitted Data - Pin 2, SD (BA)Direction: to modemSignals

158MultiModemBA User GuideTest Voltage - Pin 9, XVDirection: from modemThe XV lead has 330 ohms of resistance to +12 volts DC. This lead may be used t

159Appendix J - RS-232C Interface SpecificationsExternal Transmit Clock - Pin 24, XTCDirection: to modemSupplies the same function as transmit clock o

16MultiModemBA User Guide1.6 PowerPower is supplied through an AC power transformer terminated with a standard two-prong plug. Thetransformer supplies

160MultiModemBA User GuideAppendix K - Regulatory InformationCompliance with European Community RequirementsEMC, Safety and Terminal Directive Complia

161Appendix K - Regulatory InformationFCC Regulations for Telephone Line Interconnection1. This equipment complies with Part 68 of the Federal Communi

162MultiModemBA User GuideCanadian Limitations NoticeNotice: The ringer equivalence number (REN) assigned to each terminal device provides anindicatio

163IndexIndexSymbols&E0 ...32&E1 ...

164MultiModemBA User GuideDialing a Stored Number (N) ...49Dialing/On-Line/Answering ...28Dig

165IndexModem Dials But Cannot Make a Connection..126Modem Disconnects While Online ...127Modem Does Not Respond to Commands...124

166MultiModemBA User Guideself-test ...124Time Elapse for Escape Sequence ...82

17Chapter 1 - Introduction and Description(24.0) 24,000 bps. (2834 models only). This LED is lit when the modem is connected at 24,000 bps.Note: if th

18MultiModemBA User Guide

Chapter 2 - Installation and Connection

User Guide88312000 Revision AMultiModemII Models:MT2834BA/MT2834BAIMT1432BA/MT1432BAI/MT1432BA-MacMT932BA/MT932BAThis publication may not be reproduce

20MultiModemBA User Guide2.1 What is in Your Modem Package?Your MultiModem is made up of many components. Make sure you have them all before trying to

21Chapter 2 - Installation and Connection2.2 InstallationThe installation of the modem consists of making the physical connections necessary to render

22MultiModemBA User GuidePHONE LINEONOFFPOWEREIA RS232CVOLUMEFigure 2-2. MultiModemBA/BAI Connections4 Attach the EIA RS-232C connector on the modem t

23Chapter 2 - Installation and Connection2.3 Loading Trio DataFAX SoftwareThe following procedure will guide you through the installation of Trio Data

24MultiModemBA User Guide10 Click Complete Installation and the installation introduction is presented.11 Click Next Dialog and follow the on-screen i

25Chapter 2 - Installation and Connection16 Follow the on-screen instructions and when you are finished, click Next Dialog. The followingdialog is dis

26MultiModemBA User Guide

Chapter 3 - Software Configuration and Modem Basics

28MultiModemBA User Guide3.1 IntroductionChapter 2 guided you through the installation of Trio communications software. If you are using adifferent so

29Chapter 3 - Software Configuration3.2.2 The 16550 UART and Windows 3.1Windows 3.1 may cause a loss of data when communicating at high speed, even wi

ContentsChapter 1 - Introduction and Description1.1 Introduction...

30MultiModemBA User Guide3.4 PC Initialization StringsWe recommend the following initialization string for a MultiModem connected to a PC-compatibleco

31Chapter 3 - Software Configuration3.5 Macintosh InitializationMacintosh computers cannot use RTS/CTS hardware flow control without a serial cable wi

32MultiModemBA User Guide3.6.3 File Transfer ProtocolsWhen you upload or download files with your modem, the host computer will ask which file transfe

33Chapter 3 - Software Configuration3.8 Modem BasicsYou control your modem by issuing AT commands, setting S-Registers, and setting DIP-Switches.You c

34MultiModemBA User Guide

Chapter 4 - Manual Dial and Automatic Answer

36MultiModemBA User Guide4.1 IntroductionWe’ll assume that yours is the very common application, where you are using a modem to dial up aremote comput

37Chapter 4 - Manual Dial and Automatic Answer4.3 Manual Call OriginationYou can use the modem to both originate and answer calls. To originate calls

38MultiModemBA User Guide4.5 Manual AnsweringWe have shown that the modem can automatically answer incoming calls. The MultiModem can alsoanswer manua

39Chapter 4 - Manual Dial and Automatic Answer4.7 Call TerminationThere are a number of ways to terminate a call, or simply stated, hang up. They are:

Chapter 4 - Manual Dial and Automatic Answer4.1 Introduction...

40MultiModemBA User Guide

Chapter 5 - Command Mode

42MultiModemBA User Guide5.1 IntroductionAT commands are the means by which you, and your communications software, are able tocommunicate with and con

43Chapter 5 - Command Mode5.1.2 Functional ModesThe MultiModem can be in one of two functional states (see Figure 5-1). These are "Commandmode&qu

44MultiModemBA User Guide5.2 Summary of AT CommandsA wide variety of autodial operations and modem options can be controlled when the modem is inComma

45Chapter 5 - Command ModeCONTROL RS232C &C Carrier Detect ControlINTERFACE &D Data Terminal Ready Control&R Clear To Send Control&S D

46MultiModemBA User GuideEXECUTE %DF Format Line Probe Display (Graph or Table Format)LINE %DP Enable/Disable Reading Line Probe From DSP during hands

47Chapter 5 - Command Mode5.3 Result CodesThe Command mode provides you with several responses, or “Result Codes”, that can aid you inCommand mode ope

48MultiModemBA User Guide"Standard AT" Result Codes2834 SeriesTERSE VERBOSE TERSE VERBOSE0 OK 11 CONNECT 48001 CONNECT 12 CONNECT 96002 RING

49Chapter 5 - Command Mode5.4 Dialing Commands5.4.1 Dialing Action CommandsDial Command DThe letter D in a command causes the modem to dial the teleph

Chapter 8 - Modem Testing8.1 Introduction...

50MultiModemBA User GuideTo activate DTR Dialing, enter AT$D1 and hit RETURN. The modem dials the phone number storedin the N0 location of memory when

51Chapter 5 - Command ModeAutomatic Pauses in Dialing ,You can cause the modem to pause during the dialing sequence by entering a comma characterwhere

52MultiModemBA User Guide"Calling Card" Detect Tones $The modem has the capability to detect AT&T "calling card" tones for the

53Chapter 5 - Command Mode5.4.3 Phone Number Memory CommandsStoring Phone Numbers D...NA telephone number and command line of up to sixty characters m

54MultiModemBA User Guide5.4.4 Configuration and Default Storage CommandsStore Configuration & S-Register Parameters in Non-Volatile Memory &W

55Chapter 5 - Command ModeUnix UUCP Spoofing $SPThe modem can be configured in a Unix environment that employs ACK flow control as a means ofmonitorin

56MultiModemBA User Guide5.4.5 Command Response (Result Code) CommandsEcho Command Mode Characters EIf the modem is connected to a full-duplex compute

57Chapter 5 - Command ModeResult Codes (Basic and Extended) and Call Progress Selection XThe X Command is used to select one of two possible dialing m

58MultiModemBA User Guide5.4.6 Phone Line Conditioning CommandsGuard Tones (Not Used in BAI Models) &GThe &G command is used to control the pr

59Chapter 5 - Command ModeFallback Modes When On-Line #FIf line conditions deteriorate, the modem automatically drops its transmission speed (“fallbac

vi

60MultiModemBA User GuideAuto Speed Detect #AThe function of the #A command is to detect and select the operational data rates (the “starting”speeds)

61Chapter 5 - Command Mode5.4.7 RS-232C Interface Control CommandsCarrier Detect Control &CThe &C command allows you to control the status of

62MultiModemBA User GuideData Set Ready Control &SThe &S command allows you to control the status of the Data Set Ready signal (DSR - pin 6) o

63Chapter 5 - Command Mode5.4.8 Error Correction CommandsYou can use AT commands to place your modem one of three V.42 (error correction) modes ofoper

64MultiModemBA User GuideV.42 Mode Select #LThe V.42 standard implements both MNP Class 3 & 4 and LAP-M error correction methods. The V.42Mode Sel

65Chapter 5 - Command ModeEnable/Disable Auto Reliable Fallback Character $FIn Auto-Reliable mode, the modem is given four seconds to establish a Reli

66MultiModemBA User Guide5.4.9 Flow Control CommandsFlow control refers to the techniques used by computer devices to stop and restart the flow of dat

67Chapter 5 - Command ModeXon/Xoff Pass-Through &E7So far, you have had three choices to make regarding pacing:1. You can set the modem to respond

68MultiModemBA User GuideNormal Mode Modem Flow Control On &E11When two MultiModems are connected in Normal mode (not using error correction), Xon

69Chapter 5 - Command Mode5.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing CommandsThe modem has a variety of commands to c

Chapter 1 - Introduction and Description

70MultiModemBA User Guide5.4.11 Speed Conversion CommandsSpeed conversion is a necessary part of data compression since data must be presented to them

71Chapter 5 - Command Mode1432 Series:AT$MB75 = CCITT V.23AT$MB300 = 300 bpsAT$MB1200 = 1200 bpsAT$MB2400 = 2400 bpsAT$MB4800 = 4800 bpsAT$MB9600 = 96

72MultiModemBA User GuideSerial Port Baud Rate $SBThe $SB command presets the speed of the modem’s serial (RS-232C) port, in both Originate andAnswer

73Chapter 5 - Command Mode5.4.12 Immediate Action CommandsHelp Screens $HThe Help command is designed to give you short explanations on how to use eac

74MultiModemBA User GuideListing On-Line Diagnostics L8The L8 command displays the current on-line CONNECT status of the modem. This display can bepri

75Chapter 5 - Command ModeForce Answer Mode AYou can force the modem into Answer mode with the modem’s A command.Entering ATA when in Command mode imm

76MultiModemBA User Guide

Chapter 6 - S-Registers

78MultiModemBA User Guide6.1 IntroductionCertain Command Mode configurations are stored in memory registers called, S-Registers. The Scommand is used

79Chapter 6 - S-RegistersS4Line Feed CharacterUnit: ASCII CharacterRange: 0-127Default: 10 (^J)Description: S4 defines the character recognized as Lin

8MultiModemBA User Guide1.1 IntroductionWelcome to the world of data communications. You have acquired one of the finest intelligentdesktop data/fax m

80MultiModemBA User GuideS9Carrier Detect Response TimeUnit: 100 mSec.Range: 1-255Default: 6Description: S9 sets the time delay between when the modem

81Chapter 6 - S-RegistersS15Callback Time DelayUnit: SecondsRange: 10-255Default: 20Description: S15 defines the time delay between Callback attempts

82MultiModemBA User GuideS26Failed Password AttemptsUnit: 1 failed attemptRange: 0-255Default: 0Description: S26 counts the number of times there has

83Chapter 6 - S-RegistersS34Buffer Length of Command Mode...After On-line Escape SequenceUnit: ASCII CharacterRange: 0-60Default: 10Description: If th

84MultiModemBA User Guide6.2 Reading and Assigning S-Register ValuesThe S command is used to assign a value to, and to read the current value of, an S

85Chapter 6 - S-Registers6.3 AT Command and S-Register SummaryThe vast majority of installations are similar, with the modem being used to dial up a r

86MultiModemBA User Guide

Chapter 7 - Callback Security andRemote Configuration

88MultiModemBA User Guide7.1 IntroductionThis chapter describes how the MultiModem’s Callback and Remote Configuration features operate.These features

89Chapter 7 - Callback Security and Remote Configuration7.3 Remote Configuration DescriptionThe Remote Configuration feature is a network management t

9Chapter 1 - Introduction and DescriptionChapter 5 - AT Command Mode OperationChapter 5 may be the most important chapter of this manual. It begins wi

90MultiModemBA User GuideTo turn your modem's Callback Security feature on and off:7. If you want Callback Security with both remote and local pa

91Chapter 7 - Callback Security and Remote ConfigurationThe + and/or - characters entered before the phone number are optional. The + (DepositNumber)

92MultiModemBA User Guide7.3.2 Remote Configuration ProceduresThe procedures for using the Remote Configuration features are the same whether or not a

93Chapter 7 - Callback Security and Remote Configuration7.4 Remote Configuration and Callback Security AT CommandsThe following AT commands are used w

94MultiModemBA User GuideErase Callback Password #RCBNxxThis command erases the single callback password specified by xx (0 through 29).Erase Callback

95Chapter 7 - Callback Security and Remote Configuration7.5 Remote Configuration/Callback Security S-RegistersThe following S-Registers are used with

96MultiModemBA User Guide

Chapter 8 - Modem Testing

98MultiModemBA User Guide8.1 IntroductionEach time you power up the MultiModem, it performs an automatic self- test to ensure properoperation. The mod

99Chapter 8 - Modem Testing8.2 Local Analog Loopback Test/V.54 Loop 3In this test, data from your computer or terminal is sent to your modem's tr