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Multi-Tech Systems MT5634ZBAV manual Remote Digital Loopback Test V.54 Loop, 133

Models: MT5634ZBA MT5634ZBAV

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C Loopback Tests

displayed on your monitor. The TD and RD LEDs should flash when a character is entered.

5.To exit the test, type the escape sequence +++AT and press EN- TER. This puts the modem in online command mode. Then type either AT&T or ATH to return to command mode.

6.Your modem passes this test if the data received on your monitor are the same as the data entered from your keyboard. If different data appear on your monitor, your modem is probably causing the problem, though it could also be your computer. If your modem passes this test, but you are receiving errors while on line, the re- mote modem or the phone line could be at fault.

Remote Digital Loopback Test (V.54 Loop 2)

The remote digital loopback test tests the phone lines and the circuits of both your modem and a remote modem. In this test, your modem must be on line with another modem that is set up to respond to a re- quest for remote digital loopback. (Note that some modems might not support remote digital loopback or might have it disabled.) Data from your computer or terminal is transmitted through your modem and over the phone line to the remote modem, where it is then looped back to your modem.

AT&T6

OK UUUUUUUUU UUUUU

Digital Analog			Analog Digital

AT&T6

OK

Computer or Terminal Local MultiModem

Remote MultiModem Computer or Terminal

Figure C-2. Remote digital loopback test.

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Multi-Tech Systems MT5634ZBAV manual Remote Digital Loopback Test V.54 Loop, 133

Contents

Model MT5634ZBA Model MT5634ZBAV Page Model MT5634ZBA Model MT5634ZBAV Models MT5634ZBA and MT5634ZBAV Contents User Guide FeaturesVii Callback SecurityViii Appendix C Loopback Tests145 User Guide Introduction Page Introduction Introduction Product DescriptionWhat Is in Your Modem Package? Related Manuals User Guide Quick Start Page We supply IntroductionWhat You Will Need Quick StartSafety Warnings Mounting the feet Assemble the ModemOpening the Modem Change the Internal JumpersInternal jumpers MT5634ZBAV Changing the Dial-Up/Leased-Line Jumpers User Guide Changing the Speaker JumperModem connections Connect the Modem to Your SystemMicrophone Connection MT5634ZBAV only User Guide RS232 ConnectionLine Connection Phone ConnectionQuick Start Speaker Connection MT5634ZBAV only Power ConnectionPower-On Test Adding the Modem to Windows 95 or NT Install the Modem in WindowsRemoving Your Old Modem from Windows 95 or NT Install and Configure Your Software Quick Start User Guide Windows 95 HyperTerminal Call the Multi-Tech BBSWindows Terminal Quick Start Send a Fax Select Start Programs Accessories Fax Compose new faxOther Ways to Access Microsoft Fax Loopback Test Test the MT5634ZBAV Voice CircuitsVoice Mail Test AT+FCLASS=8 AT+VLS=7 Speakerphone TestReferences Features Page What Can You Do with Your Modem? FeaturesData FeaturesVoice MT5634ZBAV only FaxSerial Cable Required EquipmentComputer Communications Software Features Telephone LineConnections Connecting to the Computer RS232Connecting to a Microphone MIC Features Connecting to the Telephone Line LineConnecting to a Telephone Set Phone Connecting to Power PWR Connecting to a Speaker SpkrConnecting to a Sound Card Spkr Surge Protectors and Lightning Front Panel 56 56K Mode 56,000-32,000 bps. The 56 LED lights wheneverFeatures User Guide AT Commands Registers Result Codes Page AT Commands, S-Registers, and Result Codes AT CommandsAnswer AT Command SummaryEnter Key Dial Repeat Last CommandCommunication Standard Setting Carrier ControlDS=y Dial Stored Telephone Number ATDT1028806127853500$123456789Information Request Echo Command Mode CharactersEcho Online Data Characters Hook ControlModulation Handshake Monitor Speaker VolumeMonitor Speaker Mode Set Register Value Return Online to Data ModeResult Codes Enable/Disable Pulse DialingResult Code Options Sr? Read Register ValueTone Dialing Result Code FormatLong Space Disconnect Modem ResetData Terminal Ready DTR Control Auto RetrainData Carrier Detect DCD Control Auxiliary Relay Control Load Factory SettingsCommunications Mode 22bis Guard Tone ControlData Set Ready DSR Control Asynchronous Communications ModeTest Commands Select Stored Configuration for Hard Reset Display Current SettingsStore Current Configuration \Bn Transmit Break Zy=x Store Dialing CommandSpeaker Codec Loopback \An Select Maximum MNP Block SizeBreak Control \Gn Modem Port Flow Control\Jn Data Buffer Control \Nn Error Correction Mode Selection \Vn Protocol Result Code \Tn Inactivity Timer\Qn Flow Control Selection Data Compression Control \Xn XON/XOFF Pass-ThroughData Calling Tone View Numbers in Blacklist$EBn DCn AT Command Control$Dn DTR Dialing #CBAn Callback Attempts +ES=n Enable Synchronous Buffered Mode#CBDn Callback Delay Command #CBF? Callback Failed Attempts Display#CBPn Callback Parity Callback Failed Attempts Reset#CBIn Local Callback Inactivity Timer Command #CBNy=x Store Callback PasswordCommand #S=x Store Setup Password Callback Security ResetCallback Enable/Disable Enter Setup Password+++ATCR Escape Sequence Registers Register Unit Range Default DescriptionS35 S10S11 S28S37 Register Unit Range Default Description S36S43 Register Unit Range Default Description S38S42 S108 Register Unit RangeS48 S89Terse Verbose Description Result CodesDelayed Remote Configuration Page Remote Configuration Basic ProcedureChanging the Setup Password SetupRemote Configuration Changing the Remote Escape Character User Guide Callback Security Page Callback Security Setup ProceduresTo Turn Callback Security On and Off User Guide To Change the Setup PasswordTo Set the Parity of the Callback Security Messages To Assign Callback Passwords and Phone Numbers Callback Security Password-Only Callback Calling ProceduresNumber-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 103 None of the Indicators LightSolving Problems 104 Modem Does Not Respond to Commands105 106 107 Modem Dials But Cannot Connect108 109 4The Modem Disconnects While Online110 File Transfer Is Slower Than It Should Be111 Data Is Being Lost112 4The Modem Doesn’t Work with Caller IDFax and Data Software Can’t Run at the Same Time Appendixes Page 115 FCC Regulations for Telephone Line InterconnectionRegulatory Compliance 116 117 Canadian Limitations Notice118 FCC Fax Update119 Compliance with Babt Requirements120 EMC and Safety ComplianceEuropean Low Voltage Directive 121 Command DefaultRegister Default Australian Modem Warning Notice122 Use of Supplied Power Transformer123 New Zealand Telecom Warning Notice124 Technical Specifications Command Buffer Error CorrectionMode of Operation Intelligent Features22bis/V.22 or Carrier FrequenciesITU-T AT&T V.32 terbo ITU-T V.32bis/V.32 Carrier FrequenciesFrequencies ConnectorsBell 103/113 Fax CarrierPower Consumption DiagnosticsIndicators Power Requirements130 131 Loopback Tests132 Test procedureLocal Analog Loopback Test V.54 Loop 133 Remote Digital Loopback Test V.54 Loop134 User Guide Test procedure135 Local Digital Loopback Test V.54 Loop136 137 Limited WarrantyWarranty, Service, and Technical Support Attn Repair ServiceTechnical Support Multi-Tech Systems, Inc Woodale Drive Mounds View, MN139 Online Warranty RegistrationMulti-Tech BBS 140 If you know the file nameIf you don’t know the file name 141 About the Internet142 About the Multi-Tech Fax-Back ServiceAbout CompuServe 143 Upgrade OverviewUpgrade Procedures 144 Identify the Modem FirmwareIdentify the Current Firmware Version Multi-Tech Web Site145 Multi-Tech BBS146 Download the Upgrade File147 Extract the Upgrade FilesClear Your Stored Paramenters 148 Upgrade the Modem’s Firmware149 Flashwin150 Restore Your ParametersIndex Page 153 Index47, 70 15420, 21 155156 Enable Synchronous Buffered Mode157 Modem Port Flow Control command20, 55 158159 Store Telephone Number command160 User Guide