Test procedure, 132 | Multi-Tech Systems MT5634ZBAV specification

User Guide

Local Analog Loopback Test (V.54 Loop 3)

In this test, data from your computer or terminal is sent to your mo- dem’s transmitter, converted into analog form, looped back to the mo- dem’s receiver, converted into digital form, and then sent to your monitor for verification. No connection to the phone line is required.

AT&T1

CONNECT

UUUUUUUUU

UUU

Digital Analog

Computer or Terminal

Local MultiModem

Figure C-1. Local analog loopback test.

Test procedure

1.Connect the modem to your computer. Using your communication program, set the desired baud rate and go into terminal mode.

2.Type AT&T1 and press ENTER. This places your modem in analog loopback mode in the originate mode. A CONNECT message should appear on your display. The modem is now out of command mode and in a pseudo-online mode.

3.Note that the CD LED is on. If you are set for 14,400 bps or higher, a speed LED should be on. If the CD LED is not on, there is a defect in your modem.

4.Enter characters from your keyboard. For this test, typing multiple uppercase U characters is a good way to send an alternating test pattern of binary ones and zeros. The characters entered should be

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Multi-Tech Systems MT5634ZBAV manual Local Analog Loopback Test V.54 Loop, Test procedure, 132

Contents

Model MT5634ZBA Model MT5634ZBAV Page Model MT5634ZBA Model MT5634ZBAV Models MT5634ZBA and MT5634ZBAV Contents Features User Guide Callback Security Vii Appendix C Loopback Tests Viii 145 User Guide Introduction Page Introduction Product Description Introduction What Is in Your Modem Package? Related Manuals User Guide Quick Start Page Quick Start IntroductionWhat You Will Need We supply Safety Warnings Assemble the Modem Mounting the feet Change the Internal Jumpers Opening the Modem Internal jumpers MT5634ZBAV User Guide Changing the Speaker Jumper Changing the Dial-Up/Leased-Line Jumpers Connect the Modem to Your System Modem connections Phone Connection User Guide RS232 ConnectionLine Connection Microphone Connection MT5634ZBAV only Power-On Test Power ConnectionQuick Start Speaker Connection MT5634ZBAV only Install the Modem in Windows Adding the Modem to Windows 95 or NT Removing Your Old Modem from Windows 95 or NT Install and Configure Your Software Quick Start User Guide Call the Multi-Tech BBS Windows 95 HyperTerminal Windows Terminal Quick Start Select Start Programs Accessories Fax Compose new fax Send a Fax Other Ways to Access Microsoft Fax Voice Mail Test Test the MT5634ZBAV Voice CircuitsLoopback Test Speakerphone Test AT+FCLASS=8 AT+VLS=7 References Features Page Features What Can You Do with Your Modem? Features Data Fax Voice MT5634ZBAV only Computer Required EquipmentSerial Cable Features Telephone Line Communications Software Connecting to the Computer RS232 Connections Connecting to a Telephone Set Phone Features Connecting to the Telephone Line LineConnecting to a Microphone MIC Connecting to a Sound Card Spkr Connecting to a Speaker SpkrConnecting to Power PWR Surge Protectors and Lightning 56 56K Mode 56,000-32,000 bps. The 56 LED lights whenever Front Panel Features User Guide AT Commands Registers Result Codes Page AT Commands AT Commands, S-Registers, and Result Codes Enter Key AT Command SummaryAnswer Carrier Control Repeat Last CommandCommunication Standard Setting Dial ATDT1028806127853500$123456789 DS=y Dial Stored Telephone Number Hook Control Echo Command Mode CharactersEcho Online Data Characters Information Request Monitor Speaker Mode Monitor Speaker VolumeModulation Handshake Pulse Dialing Return Online to Data ModeResult Codes Enable/Disable Set Register Value Result Code Format Sr? Read Register ValueTone Dialing Result Code Options Modem Reset Long Space Disconnect Data Carrier Detect DCD Control Auto RetrainData Terminal Ready DTR Control 22bis Guard Tone Control Load Factory SettingsCommunications Mode Auxiliary Relay Control Test Commands Asynchronous Communications ModeData Set Ready DSR Control Store Current Configuration Display Current SettingsSelect Stored Configuration for Hard Reset \An Select Maximum MNP Block Size Zy=x Store Dialing CommandSpeaker Codec Loopback \Bn Transmit Break \Jn Data Buffer Control \Gn Modem Port Flow ControlBreak Control \Nn Error Correction Mode Selection \Qn Flow Control Selection \Tn Inactivity Timer\Vn Protocol Result Code View Numbers in Blacklist \Xn XON/XOFF Pass-ThroughData Calling Tone Data Compression Control $Dn DTR Dialing DCn AT Command Control$EBn Command #CBF? Callback Failed Attempts Display +ES=n Enable Synchronous Buffered Mode#CBDn Callback Delay #CBAn Callback Attempts Command #CBNy=x Store Callback Password Callback Failed Attempts Reset#CBIn Local Callback Inactivity Timer #CBPn Callback Parity Enter Setup Password Callback Security ResetCallback Enable/Disable Command #S=x Store Setup Password +++ATCR Escape Sequence Register Unit Range Default Description Registers S28 S10S11 S35 Register Unit Range Default Description S36 S37 S42 Register Unit Range Default Description S38S43 S89 Register Unit RangeS48 S108 Result Codes Terse Verbose Description Delayed Remote Configuration Page Basic Procedure Remote Configuration Setup Changing the Setup Password Remote Configuration Changing the Remote Escape Character User Guide Callback Security Page Setup Procedures Callback Security User Guide To Change the Setup Password To Turn Callback Security On and Off To Set the Parity of the Callback Security Messages To Assign Callback Passwords and Phone Numbers Callback Security Calling Procedures Password-Only Callback Number-Entry Callback Extension-Entry Callback Direct Connection Callback Security Commands #CBFR Command #CBPn #CBS0 Zy=+-x,???Store Dialing Command Only after the setup password has been entered 100 Solving Problems Page Solving Problems None of the Indicators Light103 Modem Does Not Respond to Commands 104 105 106 Modem Dials But Cannot Connect 107 108 4The Modem Disconnects While Online 109 File Transfer Is Slower Than It Should Be 110 Data Is Being Lost 111 Fax and Data Software Can’t Run at the Same Time 4The Modem Doesn’t Work with Caller ID112 Appendixes Page Regulatory Compliance FCC Regulations for Telephone Line Interconnection115 116 Canadian Limitations Notice 117 FCC Fax Update 118 Compliance with Babt Requirements 119 European Low Voltage Directive EMC and Safety Compliance120 Australian Modem Warning Notice Command DefaultRegister Default 121 Use of Supplied Power Transformer 122 New Zealand Telecom Warning Notice 123 124 Technical Specifications Intelligent Features Error CorrectionMode of Operation Command Buffer AT&T V.32 terbo ITU-T V.32bis/V.32 Carrier Frequencies Carrier FrequenciesITU-T 22bis/V.22 or Fax Carrier ConnectorsBell 103/113 Frequencies Power Requirements DiagnosticsIndicators Power Consumption 130 Loopback Tests 131 Local Analog Loopback Test V.54 Loop Test procedure132 Remote Digital Loopback Test V.54 Loop 133 User Guide Test procedure 134 Local Digital Loopback Test V.54 Loop 135 136 Warranty, Service, and Technical Support Limited Warranty137 Multi-Tech Systems, Inc Woodale Drive Mounds View, MN ServiceTechnical Support Attn Repair Multi-Tech BBS Online Warranty Registration139 If you don’t know the file name If you know the file name140 About the Internet 141 About CompuServe About the Multi-Tech Fax-Back Service142 Upgrade Procedures Upgrade Overview143 Multi-Tech Web Site Identify the Modem FirmwareIdentify the Current Firmware Version 144 Multi-Tech BBS 145 Download the Upgrade File 146 Clear Your Stored Paramenters Extract the Upgrade Files147 Upgrade the Modem’s Firmware 148 Flashwin 149 Restore Your Parameters 150 Index Page Index 153 154 47, 70 155 20, 21 Enable Synchronous Buffered Mode 156 Modem Port Flow Control command 157 158 20, 55 Store Telephone Number command 159 User Guide 160