Multi-Tech Systems MT5634ZPX-PCI-V92 manual Local Analog Loopback Test V.54 Loop, Test procedure

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MultiModemZPX User Guide

C Loopback Tests

Appendix C: Loopback Tests

Introduction

Each time you turn on your modem, it performs an automatic self-test to ensure proper operation. Your modem also has three diagnostic tests: local analog loop- back, remote digital loopback, and local digital loopback. These ITU-T V.54 loop- back tests isolate telephone circuit and transmission problems.

In a loopback test, data from your computer loops through the circuits of your mo- dem and/or a remote modem before it appears on your monitor. When the loop has been completed, the data on your PC’s monitor should match the original data.

The local analog loopback test allows you to verify that the modem’s transmitter and receiver circuits are functioning properly.

The remote digital loopback test allows you to verify that the local computer or ter- minal, the serial ports, the local and remote modems, and the transmission line be- tween them are functioning properly.

The local digital loopback test allows you to verify that the remote computer or ter- minal, the serial ports, the local and remote modems, and the transmission line be- tween them are functioning properly.

Local Analog Loopback Test (V.54 Loop 3)

In this test, data from your computer or terminal is sent to your modem’s transmit- ter, converted into analog form, looped back to the modem’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 9600

UUUUUUUUUUUU

Digital Analog

Computer or Terminal

Local MultiModem

Figure C-1. Local analog loopback test.

Test procedure

1.Using a communications program, set the baud rate to 9600 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 dis- play. The modem is now out of command mode and in a pseudo-online mode.

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Contents Page Record of Revisions Introduction Solving Problems Appendix G Installing Under SCO OpenServer Introduction Product Description What Is in Your Modem Package?Introduction Installation Safety Warnings What You Will NeedWe supply You supplyInstall the MultiModemZPX in your Computer Phone Connection Make the External ConnectionsLine Connection Microphone Connection Sound Card and Speaker ConnectionsWindows 98/Me Install the Modem DriverWindows Changing the Windows 95/98/Me COM port assignment Verifying the Windows 95/98/Me Configuration If Dial-Up Networking is not installed Windows NTIf Dial-Up Networking is already installed Verifying the Windows NT Configuration Viewing system resources Global Wizard Utility Configure the Modem for Your CountryAT Commands Install and Configure Your Software Operation Connecting to the Internet Configuring the ModemPhoneTools Features Dial-Up Networking Sending a FaxReferences AT Commands Registers Result Codes Introduction AT Commands Repeat Last CommandCommunication Standard Setting AnswerEcho Command Mode Characters DS=n Dial Stored Telephone NumberEcho Online Data Characters Hook ControlMonitor Speaker Mode Return Online to Data ModeResult Codes Enable/Disable Modulation HandshakeModem Reset Tone DialingResult Code Format Result Code OptionsLoad Factory Settings Asynchronous Communications ModeData Terminal Ready DTR Control XON/XOFF Pacing ControlTest Commands Display Current SettingsStore Current Configuration Store Dialing Command\Kn Break Control \Bn Transmit Break\Jn Data Buffer Control \Nn Error Correction Mode Selection \Tn Inactivity Timer\Qn Flow Control Selection \V n Protocol Result CodeAdaptive Answer Result Code Enable Data Calling ToneView Numbers in Blacklist 42bis Compression ControlData Compression Reporting Command +DCS=x,y Select V.44 Data CompressionCommand +DS44=n V.44 Data Compression Enable Synchronous Buffered Mode SubparametersModulation Selection ModCommand +PCW= n Call Waiting Enable Modem on Hold Enable Command +PMHR=n Modem on Hold InitiatePCM Upstream Ignore Modem Hook FlashCommand +PMHT=n Modem on Hold Timer Quick Connect ControlCommand +VCID=n Caller ID Selection Command +VDR=x, y Distinctive Ring Report#Sx Enter Setup Password #S=x Store Setup PasswordCommand +++ATCR Escape Sequence Command %%%ATCR Remote Configuration Escape SequenceRegister Unit Range Default Description RegistersValue Speed Value RateBit 56K mode Value Digital lossResult Codes Terse Verbose DescriptionDelayed Remote Configuration To Change the Setup Password Basic ProcedureSetup To Change the Remote Escape Character Solving Problems Modem Does Not Respond to Commands Modem Cannot Connect When Dialing ModemDisconnects While Online MultiModemZPX User Guide There Are Garbage Characters on the Monitor Modem Doesn’t Work with Caller IDFax and DataSoftware Can’t Run at the Same Time Voice Functions Don’t WorkSpeakerphone Test Voice Mail TestLoopback Test Appendixes Appendix a Regulatory Compliance FCC Part 68 TelecomFCC Part Fax Branding StatementProtection Against Contact with TNV Circuit Canadian Limitations NoticeIndustry Canada EMC, Safety, and R&TTE Directive Compliance New Zealand Telecom Warning NoticeSouth African Notice International Modem RestrictionsAppendix B Technical Specifications Command Buffer Test procedure Local Analog Loopback Test V.54 LoopRemote Digital Loopback Test V.54 Loop Figure C-2. Remote digital loopback testLocal Digital Loopback Test V.54 Loop Figure C-3. Local digital loopback testMultiModemZPX User Guide Loopback Tests Canadian Customers Limited WarrantyOnline Warranty Registration Service International Customers outside U.S.A. and Canada International DistributorsTechnical Support Internet SitesUpgrade Overview Identify the Modem FirmwareDownload the Upgrade File Extract the Upgrade FilesIdentify the Current Firmware Version Document and Clear Your Stored ParamentersUpgrade the Modem’s Firmware Restore Your ParametersPC port Linux port InstallationStandard Linux Serial Port Definitions Using the Terminal Program Minicom to Verify Operation Using the Modem to Call the InternetCalling the ISP Answering CallsAppendix G Installing Under SCO OpenServer Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index MultiModemZPX User Guide Index

MT5634ZPX-PCI-V92 specifications

The Multi-Tech Systems MT5634ZPX-PCI-V92 is a high-performance V.92 data/fax modem designed to enhance communication capabilities in various applications. This modem is particularly well-suited for commercial and industrial environments where reliable connectivity is crucial.

One of the standout features of the MT5634ZPX-PCI-V92 is its support for the V.92 protocol, which allows for quicker uploads and improved connection speeds compared to earlier standards. It offers download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, making it an excellent choice for businesses that rely on time-sensitive data transmission. The modem's ability to maintain reliable connections even over noisy telephone lines is a critical aspect of its design, ensuring that users can depend on it for essential communications.

The MT5634ZPX-PCI-V92 also includes advanced error correction and data compression technologies, such as MNP 4 and V.42bis. These technologies work together to ensure data integrity during transfers and to maximize throughput, enabling users to send larger files without compromising quality or speed. Additionally, the modem features a robust fax capability, supporting both analog and digital fax transmissions, which is vital for businesses that frequently deal with document sharing.

A notable characteristic of the MT5634ZPX-PCI-V92 modem is its PCI interface, which allows for easy integration into desktop systems. This plug-and-play capability simplifies installation and setup, making it accessible for users with varying levels of technical expertise. The modem is built on a reliable hardware platform, characterized by its durable components, making it ideal for environments where long-term use is expected.

Moreover, the MT5634ZPX-PCI-V92 comes with comprehensive driver support for various operating systems, including Windows and Linux, ensuring compatibility with a wide range of applications. With its combination of speed, reliability, and ease of use, the Multi-Tech Systems MT5634ZPX-PCI-V92 modem remains a popular option for businesses looking to maintain effective communication channels through dial-up connectivity. Whether for data transmission or faxing, it stands as a solid choice for organizations that require dependable performance in a compact form factor.
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