Multitech MT4X56USB Betriebsanweisung

Four USB V.90 ModemsMultiModemUSBModel MT4X56USBUser Guide

MultiModemUSB User GuideMT4X56USB10Back PanelThe cable connections for the MT4X56USB are made at the back panel. Three groups of cables areused; four

Four USB V.90 Modems Chapter 2 - Installation

MultiModemUSB User GuideMT4X56USB12UnpackingThe shipping box contains the MT4X56USB, four RJ-11 cables, one USB cable, an external powersupply and cab

Chapter 2 - InstallationMT4X56USB 13Cabling your MT4X56USBCabling your MT4X56USB involves making the proper cable and power connections. Figure 2-2sh

MultiModemUSB User GuideMT4X56USB14

Four USB V.90 ModemsChapter 3 - Software Loading and Configuration

MultiModemUSB User GuideMT4X56USB16IntroductionMT4X56USB software installation consists of verifying that your system supports USB and theninstalling

Chapter 3 - Software Loading and ConfigurationMT4X56USB 176. The Add New Hardware Wizard dialog box displays the message “What do you want Windowsto

MultiModemUSB User GuideMT4X56USB189. The driver files are copied to your Windows System directory.10. Once the files have been copied to your PC, the

Chapter 3 - Software Loading and ConfigurationMT4X56USB 19MT4X56USB Drivers for Windows 95This section details the process for loading the software. F

User Guide88310952 Revision CMultiModemUSB (Model MT4X56USB)This publication may not be reproduced, in whole or in part, without prior expressed writt

MultiModemUSB User GuideMT4X56USB206. The Insert Disk dialog box is displayed.Insert MT4X56USB Driver Disk 1 into drive A and click OK.7. The Copying

Chapter 3 - Software Loading and ConfigurationMT4X56USB 21MT4X56USB Drivers for Windows NT 4.0Because NT 4.0 does not support USB, Multi-Tech provides

MultiModemUSB User GuideMT4X56USB229. After the program files have been copied to your hard drive, the Information dialog box isdisplayed indicating t

Chapter 3 - Software Loading and ConfigurationMT4X56USB 23MT4X56USB Drivers for Windows 2000This section provides the procedure for loading MT4X56USB

MultiModemUSB User GuideMT4X56USB246. The Found New Hardware Wizard dialog box displays the message “Locate Driver Files.”Click (check) the box next t

Chapter 3 - Software Loading and ConfigurationMT4X56USB 2511. The Found New Hardware Wizard dialog box is displayed. It initiates a second search to c

MultiModemUSB User GuideMT4X56USB2614. The Found New Hardware Wizard dialog box is displayed with the message “Driver FilesSearch Results.”Click Next

Chapter 3 - Software Loading and ConfigurationMT4X56USB 27Installing Your V.90 ModemsAfter the software drivers are installed, you will need to insta

MultiModemUSB User GuideMT4X56USB283. The Install New Modem dialog box is displayed indicating that Windows NT ( or just “Windows”for Windows 95/98)

Chapter 3 - Software Loading and ConfigurationMT4X56USB 295. The Install New Modem dialog box is displayed identifying the modem you had selected.Enab

ContentsChapter 1 - Introduction and DescriptionIntroduction ...

MultiModemUSB User GuideMT4X56USB308. The Install New Modem dialog box is displayed indicating that the modem has been set upsuccessfully.Click Finish

Chapter 3 - Software Loading and ConfigurationMT4X56USB 31Installing Your V.90 Modems (Windows 2000)Follow the procedures below to install your V.90 m

MultiModemUSB User GuideMT4X56USB325. The Add/Remove Hardware Wizard dialog box is displayed.Insert Driver Disk 3 into drive A and click Have Disk.6.

Chapter 3 - Software Loading and ConfigurationMT4X56USB 339. The Found New hardware Wizard dialog box is displayed.Click Finish.10. The Phone and Mode

MultiModemUSB User GuideMT4X56USB34Windows 95/98 Configuration UtilityThe Windows 95 and Windows 98 Configuration utilities are located in your Window

Chapter 3 - Software Loading and ConfigurationMT4X56USB 353. From the MultiModemUSB USB Properties dialog box, click Version. The Version tab isdispla

MultiModemUSB User GuideMT4X56USB36Windows NT 4.0/2000 Configuration UtilityThe Windows NT 4.0 and Windows 2000 Configuration utilities are located in

Chapter 3 - Software Loading and ConfigurationMT4X56USB 373. From the MultiModemUSB USB Properties dialog box, click Version. The Version tab isdispla

MultiModemUSB User GuideMT4X56USB38

Four USB V.90 ModemsChapter 4 - AT Commands, S-Registersand Result Codes

Loopback Tests ...

MultiModemUSB User GuideMT4X56USB40IntroductionThe AT commands are used to control the operation of your modem. They are called AT commandsbecause eac

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 41Command: Bn Communication Standard SettingValues: n = 0–3, 15, 16Default: 1 and 16Des

MultiModemUSB User GuideMT4X56USB42Command: In Information RequestValues: n = 0–5, 9, 11Default: NoneDescription: I0 Display V.90 protocol supported,

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 43Command: T Tone DialingValues: P, TDefault: TDescription: Configures the modem for DT

MultiModemUSB User GuideMT4X56USB44Command: &Gn V.22bis Guard Tone ControlValues: n = 0, 1, or 2Default: 0Description: &G0 Disable guard tone.

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 45Command: &Wn Store Current ConfigurationValues: n = 0Default: NoneDescription: &a

MultiModemUSB User GuideMT4X56USB46Command: \Kn Break ControlValues: n = 0–5Default: 5Description: Controls the response of the modem to a break recei

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 47Command: \Vn Protocol Result CodeValues: n = 0, 1, or 2Default: 1Description: \V0 Dis

MultiModemUSB User GuideMT4X56USB48Command: +++AT<CR> Escape SequenceValues: n/aDescription: Puts the modem in command mode (and optionally is

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 49S-RegistersCertain modem values, or parameters, are stored in memory locations called

Four USB V.90 ModemsChapter 1 - Introduction and Description

MultiModemUSB User GuideMT4X56USB50S38 decimal 0–23 1 Sets “downstream” data rate where K56flex provides ratesof 32,000 to 56,000 in 2,000 bps increm

Chapter 4 - AT Commands, S-Registers and Result CodesMT4X56USB 51Result CodesIn command mode your modem can send responses called result codes to your

MultiModemUSB User GuideMT4X56USB52* EC is added to these result codes when the extended result codes configuration option is enabled. EC is replaced

Four USB V.90 ModemsChapter 5 - Remote Configuration

MultiModemUSB User GuideMT4X56USB54IntroductionRemote configuration is a network management tool that enables you to configure modemsanywhere in your

Chapter 5 - Remote Configuration and ManagementMT4X56USB 55Changing the Remote Escape CharacterTo increase security, you can change a remote modem’s r

MultiModemUSB User GuideMT4X56USB56

Four USB V.90 ModemsChapter 6 - Troubleshooting

MultiModemUSB User GuideMT4X56USB58IntroductionYour MT4X56USB was thoroughly tested at the factory before it was shipped. If you are unable tomake a s

Chapter 6 - TroubleshootingMT4X56USB 59• a wrong number• no modem at the other end• a faulty modem, computer, or software at the other end• incompatib

MultiModemUSB User GuideMT4X56USB6IntroductionThe MultiModemUSB, model MT4X56USB, is a Universal Serial Bus (USB) Concentrator thatcontains four full-

MultiModemUSB User GuideMT4X56USB60• If you have extension phones on the same line as your modem, you or someone else caninterrupt the connection by p

Chapter 6 - TroubleshootingMT4X56USB 61Local Analog Loopback Test (V.54 Loop 3)In this test, data from your computer or terminal is sent to your modem

MultiModemUSB User GuideMT4X56USB62Remote Digital Loopback Test (V.54 Loop 2)The remote digital loopback test tests the phone lines and the circuits o

Chapter 6 - TroubleshootingMT4X56USB 63Local Digital Loopback Test (V.54 Loop 2)The local digital loopback test is identical to the remote digital loo

MultiModemUSB User GuideMT4X56USB64Windows 95/98 TroubleshootingIf after installing the Microsoft USB supplement (usbsupp.exe), Windows Plug-and-Play

Four USB V.90 ModemsChapter 7 - Upgrade Procedure

MultiModemUSB User GuideMT4X56USB66IntroductionYour modem is controlled by semi-permanent software (firmware) that is stored in flash memory.Firmware

Chapter 7 - Upgrade ProcedureMT4X56USB 675. If the Current Revision number is larger than the firmware version number found in “Step 1:Identify the MT

MultiModemUSB User GuideMT4X56USB68Step 6: Upgrade the Modem’s FirmwareAt various times, Multi-Tech may add enhancements and/or fixes to the modem fir

Four USB V.90 ModemsChapter 8 - Service, Warranty and Tech Support

Chapter 1 - Introduction and DescriptionMT4X56USB 7Technical SpecificationsThe MT4X56USB conforms to the following specifications.USB Ports• Interface

MultiModemUSB User GuideMT4X56USB70IntroductionThis chapter provides the information necessary for receiving service or support for yourMT4X56USB. The

Chapter 8 - Service, Warranty and Tech SupportMT4X56USB 71Limited WarrantyMulti-Tech Systems, Inc. (“MTS”) warrants that its products will be free fro

MultiModemUSB User GuideMT4X56USB72Contacting Tech Support via E-mailIf you prefer to receive service on-line, via the internet, you can contact Tech

Four USB V.90 ModemsAppendices

MultiModemUSB User GuideMT4X56USB74Appendix A - Regulatory InformationClass B StatementFCC Part 15This equipment has been tested and found to comply w

AppendicesMT4X56USB 75FCC Part 68 Telecom1. This equipment complies with Part 68 of the Federal Communications Commission (FCC) rules.On the outside s

MultiModemUSB User GuideMT4X56USB76FAX Branding StatementThe Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a compu

AppendicesMT4X56USB 77EMC, Safety and Terminal Directive ComplianceThe CE mark is affixed to this product to confirm compliance with the following Eur

MultiModemUSB User GuideMT4X56USB78Appendix B - V.90 SupportIntroductionV.90 is the ITU designation for what had formerly been called V.pcm. The ITU

Four USB V.90 ModemsGlossary of Terms

MultiModemUSB User GuideMT4X56USB8Chapter 3 - Software Loading and ConfigurationThis chapter provides the necessary information to verify if your syst

MultiModemUSB User GuideMT4X56USB80AAnalog signal: A waveform which has amplitude, frequency and phase, and which takes on a range of values between i

GlossaryMT4X56USB 81Bus Enumeration: Detecting and identifying Universal Serial Bus devices.Byte: The unit of information a computer can handle at one

MultiModemUSB User GuideMT4X56USB82Congestion: A network condition where there is too much data traffic. The ITU I.233 standard defines congestionmana

GlossaryMT4X56USB 83Digital Signal: A discrete or discontinuous signal (e.g., a sequence of voltage pulses). Digital devices, such as terminalsand com

MultiModemUSB User GuideMT4X56USB84Extended Super Frame (ESF): One of two popular formats for framing bits on a T1 line. ESF framing has a 24-framesup

GlossaryMT4X56USB 85Host Controller: The host’s Universal Serial Bus interface. A hardware device that provides the interface to the HostController Dr

MultiModemUSB User GuideMT4X56USB86LLAPB: Link Access Procedure Balanced; based on the X.25 Layer 2 specification. A full-duplex, point-to-point, bit-

GlossaryMT4X56USB 87Multiplexer (Mux): 1. A device that takes several input signals and combines them into a single output signal in such amanner that

MultiModemUSB User GuideMT4X56USB88Packet Mode: Refers to the switching of chunks of information for different users using statistical multiplexing to

GlossaryMT4X56USB 89Rate Enforcement: The concept in frame relay where frames sent faster than the CIR are to be carried only if thebandwidth is avail

Chapter 1 - Introduction and DescriptionMT4X56USB 9Front PanelThe front panel has four groups of LEDs that provide the status of the four port connect

MultiModemUSB User GuideMT4X56USB90Synchronous Data Link Control (SDLC): A discipline conforming to subsets of the Advanced Data CommunicationsControl

GlossaryMT4X56USB 91Transmission Control Protocol (TCP): A communications protocol used in Internet and in any network that follows the USDepartment o

MultiModemUSB User GuideMT4X56USB92USB: See Universal Serial Bus.USBD: See Universal Serial Bus Driver.USB Performance categories: Low Speed (Interact

MT4X56USB93IndexIndexSymbols56K operationdigital loss when used with PBX ... 50disabling the auto rate ...

MT4X56USB94MultiModemUSB User GuideCommission Decision "CTR21" ... 77Communication Standard command ...

MT4X56USB95IndexFor Windows 95.... 19For Windows 98.... 16Fo

MT4X56USB96MultiModemUSB User GuideSelect Maximum MNP Block Size command ... 45Select Stored Configuration command...... 45Service ..