Multitech MT5600ZDXV manual Digital Loopback Test/V.54 Loop 2 Local/Manual

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User Guide

the same as the data received on your monitor. If different data is appearing on your monitor, your modem is probably causing the problem, although it could also be your computer. If your modem passes this test, but you are receiving errors while On-line, the remote modem or the phone line could be at fault.

Digital Loopback Test/V.54 Loop 2 (Local/Manual)

The Digital Loopback Test is an on-line test that loops data sent from one modem across the phone line to another modem, then back to the first modem. See Figure 4-2. There are two ways to put a modem into Digital Loopback mode:

1.Locally or Manually, described here in section 4.2.

2.Remotely or Automatically, see section 4.3.

Note: If you wish to abort any test in progress, enter AT&T0<CR>.

All loopback tests will operate at all speeds except 300 bps. Disable er- ror correction (AT\N0&W0<CR>) before engaging in loopback tests. In this test the local modem is placed in Digital Loopback mode. Data is entered and transmitted from the remote modem (which is not in digital loopback mode), sent across the phone line to the local modem and looped back to the remote modem.

The test procedure is as follows:

1.Go into Terminal mode. Type AT and hit ENTER; you should get an OK message.

2.Dial the remote modem by entering the Dial command and the phone number, to establish On-line mode.

3.Type the Escape Sequence (+++) which brings your modem into Command mode, while still maintaining the pseudo On-line mode with the remote modem.

4.Type AT&T3 from the local PC and hit ENTER. Once you receive an OK message from your modem (if responses are enabled), the local modem is placed in Digital Loopback mode.

5.Data is typed from the remote keyboard. For this test, typing multiple upper case "U" characters is a good way to send an alternating test pattern of ones and zeros. The data received by the local modem will enter its analog receiver, be converted to digital data, be reconverted into analog, and then looped through its transmitter back to the remote

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Contents Page Models MT5600ZDX & Zdxv User Guide Chapter Chapter Page Introduction Introduction Product Description Data Fax What Is in Your Modem Package?Software Considerations for Zdxv Voice Zdxv onlyTroubleshooting How to Use This ManualInstallation AT Commands, S-Registers & Result CodesInstallation Serial Cable ComputerAssemble the Modem Safety Warning TelecomTelephone Line Communications SoftwarePhone Line Installation ProcessUser Guide 2a. Modem Connections Sound Card Considerations Zdxv onlySoundCard Connections Zdxv only Modem Front Panel LED IndicatorsUser Guide Operating Your Modem Is Your Modem Ready for Use?Simple Operations Software ConfigurationHardware/Software Confirmation Modem Initialization SetupNone of the LEDs Light When the Modem Is On Modem Does Not Respond to Commands Modem Dials But Cannot Make a Connection Models MT5600ZDX & Zdxv Modem Disconnects While Online Slow File Transfer Modem Cannot Connect When AnsweringGarbage Characters on the Monitor Losing DataPage AT Commands Registers Result Codes AT Commands Command Ds Dial Zdxv only Command Information Request Command DS=n Dial Stored Telephone NumberCommand En Echo Command Mode Characters Command Hn On-Hook/Off-Hook ControlCommand Qn Enable/Disable Result Codes Command Mn Monitor Speaker ModeCommand Nn Modulation Handshake Command On Return Online to Data ModeCommand Vn Terse/Verbose Result Code Format Command Sn Read/Write Register ValueCommand Wn Connect Message Control Command &Cn Data Carrier Detect DCD Control Command Xn Result Code SelectionCommand Yn Long Space Disconnect Command Zn Modem ResetCommand &Fn Load Factory Default Settings Command &Dn Data Terminal Ready DTR ControlCommand &Ln Leased Line Operation Command &Gn 22bis Guard Tone ControlCommand &Jn Telephone Jack Control Command &Kn Flow Control SelectionCommand $SBn Serial Baud Rate Command &Mn Communications ModeCommand Asynchronous Communications Mode Command Data Set Ready DSR ControlCommand V1 Display Last Connection Statistics Command &V0 View Current ConfigurationCommand %Q Line Signal Quality Command &Wn Store Current ConfigurationCommand &Zn=x Store Telephone Number Command %L Line Signal LevelCommand \An Select Maximum Block Size Command %7 Plug and Play Serial NumberCommand %8 Plug and Play Vendor ID and Product Number Command %C Enable/Disable Data CompressionCommand \Kn Set Break Control Command \Bn Transmit Break to RemoteCommand \Vn Single Line Connect Message Command \Nn Error Correction Mode SelectionCommand +MS Select Modulation +MS=mod,automode,minrate,maxrate,xlaw ,rbsignallingcrCommand Mn Command SDR=n Enable/Disable Distinctive RingCommand SEC=n Enable/Disable MNP10-EC Command *Hn MNP 10 Link Negotiation SpeedCommand -Kn MNP 10 MNP Extended Services Command -Qn MNP 10 Enable Fallback to V.22 bis/V.22Command *B View Numbers in Blacklist Command En MNP 10 Compromise Equalizer Enable CommandCommand *D View Delayed Numbers Command +++ Escape Sequence Command #CID Caller IDCommand P Pulse Dial Command T Tone DialRegisters Register Unit Range Default DescriptionS18 S10S11 S12S24 S32 S25S29 S30S37 Bit-Mapped Options Status Register Unit Range Default Description S38 S48 Register Unit Range Default Description S46S91 S82 Break Handling OptionsS95 Extended Result Codes S92Result Codes Result CodesVerbose Description Delayed Connect Troubleshooting Local Analog Loopback Test Local Analog Loopback Test/V.54 LoopDigital Loopback Test/V.54 Loop 2 Local/Manual Digital Loopback Test Local/manual Digital Loopback Test/V.54 Loop 2 Remote/ AutomaticDigital Loopback Test remote/automatic Page Warranty Service Tech Support Online Warranty Registration Limited WarrantyTech Support ServiceRecording Modem Information Fax About Ordering AccessoriesMail PhoneLogging on to the Multi-Tech BBS About the Multi-Tech BBSIf you know the file name Reading a Message If you don’t know the file nameLeaving a Message Flash Procedure Using Flash to Upgrade Modem FirmwareBulletins Models MT5600ZDX & Zdxv About Internet Tech Support Page Technical Specifications Carrier Frequencies Transmit Originate Command Buffer 40 charactersCarrier Frequencies 1800 Hz DataCarrier Frequencies Fax 21 CH2 22bis/V.22 or300 bps Bell StandardPower Consumption Connectors DiagnosticsIndicators Temperature Power RequirementRegulatory Information Models MT5600ZDX & Zdxv User Guide Canadian Limitations Notice FCC Fax UpdateUser Guide Compliance with Babt Requirements International Modem RestrictionsUser Guide Compliance with BS6789 .1 and Part Compliance with BS6328 Part Modem CE Mark EMC and Safety ComplianceNew Zealand Telecom Warning Notice Commission Decision CTR21 & European Directive NoticeInformation Support Appendix C V.90 InformationUser Guide Models MT5600ZDX & Zdxv

MT5600ZDXV, MT5600ZDX specifications

The MultiTech MT5600ZDX and MT5600ZDXV are state-of-the-art modems designed to offer reliable communication capabilities for a variety of applications. These devices are particularly favored in industrial, telecommunications, and enterprise settings due to their robust performance and versatility.

One of the standout features of the MT5600ZDX series is its ability to support both analog and digital signaling. This dual compatibility enables seamless integration with existing telecommunication infrastructure, making it an ideal choice for businesses looking to upgrade without overhauling their entire system. With ITU-T V.34 modem technology, these devices support high-speed data transmission rates of up to 56 kbps, ensuring quick and efficient data transfer.

The MT5600ZDX and MT5600ZDXV models come equipped with a comprehensive array of communication protocols, including PPP, TCP/IP, and the unique Multitech proprietary protocols. This broad compatibility allows for easy connection to various networks and devices, facilitating smooth data exchange across platforms.

Another notable feature is the built-in error correction and data compression capabilities. With technologies such as MNP, V.42, and V.42bis, users can expect enhanced data integrity and faster transmission speeds, which are particularly crucial in environments with high noise levels or signal interference. These features make the modems highly effective for remote monitoring applications, telemetry, and point-of-sale terminals.

Additionally, both models excel in terms of connectivity options. The MT5600ZDX includes a standard RS-232 interface, while the MT5600ZDXV offers an enhanced V.24 interface for those requiring additional communication flexibility. This variety in connectivity options ensures that users can integrate these devices into a wide range of systems, whether for industrial automation or remote data acquisition.

Durability and reliability are also core characteristics of the MT5600ZDX series. Designed to operate in challenging environments, they boast a wide operating temperature range and robust casing, making them suitable for deployment in harsh industrial conditions.

In conclusion, the MultiTech MT5600ZDX and MT5600ZDXV modems provide a feature-rich solution for organizations seeking high-performance communication. With advanced technologies, exceptional versatility in connections, and reliability in demanding settings, they continue to stand out as preferred choices for efficient industrial communication solutions. These devices not only enhance operational efficiency but also pave the way for future-proof connectivity in an increasingly digital world.
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