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Multi-Tech MultiModem ISIHI-2S Manual

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MultiModemISI Hybrid Series
Model ISIHI-2S
88301150
Copyright © 1998 by Multi-Tech Systems, Inc.

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Summary of Contents for Multi-Tech MultiModem ISIHI-2S

  • Page 1 MultiModemISI Hybrid Series Model ISIHI-2S 88301150 Copyright © 1998 by Multi-Tech Systems, Inc.
  • Page 2 Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc., to notify any person or organization of such revisions or changes.

  • Page 3: Table Of Contents

    Installing the ISIHI-2S ............................ 19 Chapter 3—Software/Driver Installation Introduction ..............................22 Installing ISIHI-2S Drivers in Windows NT ..................... 23 Installing Terminal Adapters and Modems to COM Ports in Windows NT ..........25 Removing the Driver ..........................30 Installing ISIHI-2S Drivers in Windows 95 ...................... 31 Installing Terminal Adapters and Modems to COM Ports in Windows 95 ..........
  • Page 4 Introduction ..............................118 Limited Warranty ............................118 Service ................................ 119 The Multi-Tech BBS ............................. 119 Upgrading the ISIHI-2S with FlashPro ......................121 About CompuServe ............................. 121 About the Internet ............................121 Appendix Appendix A: Determining Current System Settings ..................124 Appendix B: Base I/O Switch Settings ......................
  • Page 5 Introduction MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 6: Chapter 1-Introduction

    The card also supports dial-out applications via the modems or terminal adapters. The ISIHI-2S card features eight RAS ports using two Basic Rate Interface (BRI) ISDN lines. The eight ports allow a server to accept any combination of analog modem and digital ISDN calls, giving the user the flexibility to customize the settings of the terminal adapters and modems.

  • Page 7: Modem Description/Features

    Chapter 1– Introduction From the perspective of the server PC, the ISIHI-2S is an 8-port serial card with eight devices permanently attached to the serial ports. The first four ports are the two terminal adapters, each of which appear as two ports. The remaining four ports are the four central site modems.

  • Page 8: Terminal Adapter Description/Features

    9600 bps and Group 2 Designation for sending and receiving faxes at 1800 bps. The ISIHI-2S also is downward-compatible to speeds as low as 300 bps, so you can send and receive faxes with virtually any fax machine in the world.
  • Page 9 FAX machines, etc. The following diagram reflects interface points in a typical ISDN network. Point S Point T Point U 4–8 wires 4–8 wires 4–8 wires Terminal (PBX) Point S Terminal Point S Terminal MultiModem ISI Hybrid Series, ISIHI-2S...

  • Page 10: Manual Organization

    Chapter 2–Hardware Installation Describes how to install the ISIHI-2S card into the ISA bus of your personal computer system and how to configure card settings (I/O address DIP switch setting and jumper setting). This chapter also provides you with procedures for physically connecting the ISIHI-2S to the ISDN BRI line.
  • Page 11 Chapter 1– Introduction Appendix K–Modem Result Code Summary Appendix L–Terminal Adapter AT Command Summary Appendix M–Terminal Adapter S-Register Summary Appendix N–Terminal Adapter Result Code Summary Appendix O–Regulatory Agency Information Glossary Index MultiModem ISI Hybrid Series, ISIHI-2S...

  • Page 12: Technical Specifications

    Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bps Flow Control XON/XOFF, CTS/RTS Mode of Operation Half or full duplex over dial-up lines, automatic or manual dialing, automatic or manual answer MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 13 Fax Carrier Frequencies V.23 Transmit originate: 390 Hz mark , 450 Hz space Receive originate: 1300 Hz space, 2100 Hz mark Transmit answer: 1300 Hz mark, 2100 Hz mark Receive answer: 390 Hz mark, 450 Hz space MultiModem ISI Hybrid Series, ISIHI-2S...

  • Page 14: Terminal Adapter

    TIA / EIA RS-232/ITU-T V.24/V.28 Diagnostics Power-on self-test, local analog loop, local digital loop, remote digital loop Firmware Upgrades Flash memory, available on Multi-Tech’s BBS and website Terminal Adapter Compatibility AT&T 5ESS, NT DMS-100, NTT INSnet64, US National ISDN-1, NET 3...

  • Page 15: Chapter 2-Hardware Installation

    Hardware Installation MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 16: Introduction

    Hardware Installation Introduction This chapter describes how to install the ISIHI-2S card into the ISA bus on your personal computer. Hardware installation involves the following: • Opening your PC • Setting card configuration (determining I/O address DIP-switch setting and IRQ jumper setting) •...

  • Page 17: Before You Start

    Warning: Direct interconnection (or connection by way of other apparatus) of ports marked SAFETY WARNING see instructions for use with any other ports (whether similarly marked or not) may produce hazardous conditions on the network. Multi-Tech strongly urges you to consult a qualified engineer before attempting to make this type of connection.

  • Page 18: Determine Current System Settings

    Input/Output (I/O) addresses route information to and from the device. Interrupt Requests (IRQs) gain the processor’s attention. The ISIHI-2S card requires eight I/O addresses and one IRQ value that are not used by any other device in your system.

  • Page 19: Installing The Isihi-2S

    5. Remove the cover of your computer as instructed in your computer’s documentation. 6. Locate the unused slot you will be using for your ISIHI-2S card and remove the slot cover according to instructions in your computer’s documentation. 7. Check the settings of the I/O address switch and the IRQ jumper to ensure they are set properly for your installation.
  • Page 20 Hardware Installation MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 21: Chapter 3-Software/Driver Installation

    Software/Driver Installation MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 22: Introduction

    The ISIHI-2S card ships with software/drivers for Windows NT, Windows 95, SCO Open Server 5, and NetWare Connect (Novell) operating systems. This chapter guides you through the installation of these drivers.

  • Page 23: Installing Isihi-2S Drivers In Windows Nt

    Chapter 3—Software/Driver Installation Installing ISIHI-2S Drivers in Windows NT 1. Click Start, Settings, Control Panel, and then double-click the Add/Remove Programs icon. 2. The Add/Remove Program Properties dialog box appears. In the Install/Uninstall tab, click Install. 3. The Install Program From Floppy Disk or CD-ROM dialog box appears. If installing from diskette, insert the diskette labeled MultiModem ISI Driver for Windows NT in the disk drive.
  • Page 24 7. The Add Card dialog box appears, displaying defaults—Ports: 8, I/O Base: 210, and IRQ: 10. Click Done and then Close. Note: The ISIHI-2S contains 8 ports. Make sure the default is 8. 8. The ISI Card dialog box appears. Click Restart Now to restart the driver. Then click The ISI driver now is installed and you are ready to install the TAs and modems to the COM ports.

  • Page 25: Installing Terminal Adapters And Modems To Com Ports In Windows Nt

    3. The Install New Modem dialog box appears. Check the box marked Don’t detect my modem; I will select it from a list and click Next. 4. The Install New Modem dialog box appears. Click Have Disk. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 26 COM ports. 8. After the terminal adapters are installed, click Finish to return to the General tab where you can view COM port assignments (and make changes if necessary). You now are ready to install the modems. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 27 To install modems : 1. In the General tab, click Add. 2. The Install New Modem dialog box appears. Check the box marked Don’t detect my modem; I will select it from a list. Then click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 28 5. After the modems are installed to the ports, click Finish to return to the General tab where you can view COM port assignments (and make changes if necessary). 6. Close the Modem Properties dialog box. The message below appears asking if you want to configure dial-up networking. Click Yes. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 29 8. Each COM port appears in a separate Add RAS Device dialog box. To add the highlighted device, click OK. 9. The Remote Access Setup dialog box displays again. Repeat steps 7 and 8 until until all devices are added. 10. When all devices are added, click Continue. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 30: Removing The Driver

    The ISI Cards icon appears in the Control Panel and you now are ready to configure the terminal adapter. Go to page 44. Removing the Driver 1. Click Settings, Control Panel; then double-click Add/Remove Programs. 2. From the list box, select ISICOM Driver. 3. Click Add/Remove and follow screen instructions. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 31: Installing Isihi-2S Drivers In Windows 95

    Chapter 3—Software/Driver Installation Installing ISIHI-2S Drivers in Windows 95 1. Click Start, Settings, Control Panel, and then double-click the Add/Remove Programs icon. 2. The Add/Remove Program Properties dialog box appears. In the Install /Uninstall tab, click Install. 3. The Install Program From Floppy Disk or CD-ROM dialog box appears. If installing from diskette, insert the diskette labeled MultiModemISI Driver for Windows 95 &...
  • Page 32 Chapter 3—Software/Driver Installation 5. The Welcome dialog box appears. Click Next. 6. The ISI Card Port Count dialog box appears. Make sure the 8 Ports option is selected; then click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 33 Chapter 3—Software/Driver Installation 7. The Destination Directory dialog box appears. Click Next. 8. The Start Copying Files dialog box appears. Click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 34 10. The ISI Driver Setup dialog box appears instructing you to set the base address and IRQ for the card. Click OK. 11. The Systems Properties dialog box appears. In Device Manager, double-click MultiTech ISI Card in Multiport to change settings. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 35 Chapter 3—Software/Driver Installation 12. The MultiTech ISI Card Properties dialog box appears. Click Resources. Then click Set Configuration Manually. 13. In the Resources settings: list, select Input/Output Range; then click Change Setting. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 36 14. The Edit Input/Output Range dialog box appears. Click the arrows (up or down) to select the value that matches the ISIHI-2S card’s I/O address. (If you used the default I/O address, this value is 210. Otherwise, refer to the settings you recorded on page 18.) When finished, click OK to return to the Resources settings: list.
  • Page 37 16. The Edit Interrupt Request dialog box appears. Select the value that matches the ISIHI-2S card’s IRQ. (If you selected the default IRQ, this value is 10. Otherwise, refer to the settings you recorded on page 18.) Then click OK to return to the Resources settings: list.
  • Page 38 Chapter 3—Software/Driver Installation 18. When the System Settings Change dialog box appears, click Yes. Drivers now are installed. You are ready to install the TAs and modems to the COM ports. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 39: Installing Terminal Adapters And Modems To Com Ports In Windows 95

    3. The Install New Modem dialog box appears. Check the box marked Other and click Next. 4. The Install New Modem dialog box appears again. Check the box marked Don’t detect my modem; I will select it from a list. Click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 40 6. The Install From Disk dialog box appears. In the text box, enter A:\WIN95\isihimdm.inf and click OK. 7. The Install New Modem dialog box appears. From the Models list, select a protocol (depending on your application) for the terminal adapters . Then click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 41 COM ports. 9. After the terminal adapters install, click Finish to return to the General tab where you can view COM port assignments (and make changes if necessary). You now are ready to install the modems. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 42 To install modems : 1. In the General tab, click Add. 2. The Install New Modem dialog box appears. Check the box marked Don’t detect my modem; I will select it from a list. Then click Next. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 43: Removing The Driver

    COM port assignments (and make changes if necessary). Now you are ready to configure the terminal adapters. Removing the Driver 1. Click Settings, Control Panel, and then double-click Add/Remove Programs. 2. From the list box, select ISICOM Driver. 3. Click Add/Remove and follow screen instructions. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 44: Configuring The Terminal Adapter

    Chapter 3—Software/Driver Installation Configuring the Terminal Adapter Before you connect the ISIHI-2S to your network terminator, you must configure it to match your ISDN service and the remote TA. You can use any of the following methods: • I SDN TA Configuration Utility —recommended for computers with Windows 95 and Windows NT, version 4.0 operating systems.
  • Page 45 The TA can optionally store as many as 10 phone numbers, up to 20 characters each. AT command: &Z= • Dialing Stored Numbers ___________________ The TA can dial a number previously stored in directory number n using the &Zn=x command. AT command: e.g., DS3 MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 46: To Configure The Terminal Adapter

    Instructions for all three are provided in this section. ISDN TA Configuration Utility 1. Before you start the ISDN TA Configuration utility, disconnect the ISIHI-2S by removing the RJ-45 cable from the ISDN jack. 2. Insert the diskette labeled Config Utility (ISDNTA). Click Start, Programs, and then the ISDN TA Configuration Utility icon.
  • Page 47 Before You Start as you enter information to configure both TAs. If you have questions about choices, click Help. After entering information in each dialog box, click Next. 6. The Data Protocol Setup dialog box appears. Referring to you network configuation notes, enter the appropriate information; then click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 48 7. The SPID dialog box appears. Referring to your network configuration notes, enter the appropriate information; then click Next. 8. In the Save Configuration dialog box, enter a name to store the configuration. Then click Next. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 49 11. Click Back to return to the Configuration dialog box and repeat steps 5 through 10 to configure the remaining TA(s). If you install multiple ISIHI-2S cards in the same PC, you must configure two TAs per card installed. For example, if you install four ISIHI-2S cards in one PC, you have to configure eight TAs (two per card).

  • Page 50: Configmenu Configuration Utility

    ENTER. 4. When you finish, close ConfigMenu. 5. Use the &W command to save your new configuration and to load it automatically when the TA is turned on. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 51: At Commands

    To configure the TAs with AT commands: 1. Disconnect the ISIHI-2S from the network (remove RJ-45 cables from ISDN jacks). 2. Start a data communication program and select the first and third COM ports to be configured.

  • Page 52: Netware Connect (Novell) Driver Installation

    To copy, use the following command: COPY A:\AIOISIX.NLM F\:SYSTEM To load the driver, go to the system or PC console (where the ISIHI-2S is installed) and enter the following at the prompt: LOAD AIOISIX [port=W] [int=X] [name=Y] [note=Z] W is the hexadecimal I/O port address for the ISIHI-2S.

  • Page 53: Configuring Ports For Netware Connect

    Problem: I loaded the driver at the file server console, then I started NetWare Connect and connected a modem to a port on an ISIHI-2S. When I try to communicate with the modem, I see the DTR of the modem being raised, but the modem does not respond to my AT commands.

  • Page 54: Sco Open Server 5 Driver Installation

    (default): Floppy Disk Drive 0. The following message appears: Examining media. Please wait … 6. The system recognizes you are installing the Multi-Tech Serial Card Driver and prompts you to select the type of installation. 7. Select Full Installation and press ENTER to continue. These messages appear: Extracting Files...

  • Page 55: The Multi-Tech Installation Script

    Multi_View utility. This information extracts the necessary drivers, which will be linked with your system’s kernel. 1. The first screen requests the number of ISIHI-2S cards you are installing. If you have more than one ISIHI-2S, use the chart on page 18 of this guide—Recommended Base I/O Address and IRQ Values—to enter the appropriate values for each card.
  • Page 56 You are asked how many pseudo devices (the total number of pseudo devices you want to make available to the Multi_View utility) to create. This is the total number of devices available to all Multi-Tech’s terminals. You can have a maximum of 256 pseudo devices in your system.

  • Page 57: Activating Ports In Sco Open Server 5

    1. Turn on your system, noting that the firmware for each ISIHI-2S loads successfully. If the firmware for a given ISIHI card does not load, none of its ports will be accessible.

  • Page 58: Multi_Setup Utility

    Multi_Setup Utility This section guides you through the Multi_View Utility for SCO and UNIXWare systems. While installing the ISIHI-2S drivers, you also install the Multi_View utility for multiple page terminals. This section profiles the Multi_View utility and gives you the necessary information to create a Multi_View information file.
  • Page 59 The physical pages are numbered in the order they are specified in the description file. clear Specifies the escape sequence to clear the screen. The second column has the character sequence to be sent to the terminal by Multi_View. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 60 Do not switch the screen while outputting as it may break the escape sequence sent to the terminal. When there is more than one virtual screen, all outputs from the inactive virtual screens are blocked. The virtual screen the user currently is working on is the only active screen. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 61: Administration Utility

    Multi-Tech’s multiport boards. This section guides you through the Administration Utility for SCO and UNIXWare systems. This interactive menu utility displays various types of Multi-Tech’s multiport boards that can be installed in your system. You specifically can observe the status and statistics of any installed multiport board or any of its ports (e.g., MultiClusterU, ISI608, or ISIHI-2S).
  • Page 62 Chapter 3—Software/Driver Installation MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 63 MODEM AT Commands, S-Registers, and Result Codes MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 64: Chapter 4-Modem At Commands, S-Registers, And Result Codes

    Chapter 4—MODEM AT Commands, S-Registers, Result Codes Modem AT Commands The ISIHI-2S’s modems are controlled by instructions called AT commands , so called because the attention characters, AT , precede each command or sequence of commands (known as a command string ). You can send commands to the modem from your keyboard while in terminal mode, or you can use communications software to issue these commands automatically.
  • Page 65 Description Page Dialing Action Dial On-hook/off-hook Dial Modifiers Redial last number Pulse dialing Tone dialing Speakerphone mode Wait for new dial tone Dialing pause Return to command mode after dialing Flash on-hook Detect call card tone MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 66 Modem port flow control Set break control +ES=6 Enable synchronous buffered mode Escape Sequences +++AT<CR> Default in-band escape sequence Force answer mode Go back online Diagnostics Speaker Settings &T Self-test commands Monitor speaker volume Monitor speaker mode MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 67: Dialing Commands

    For example, if you type ATD5551212<cr>, the modem dials the number 555-1212. The ISIHI-2S modem supports several dialing methods. With the D command, you can specify either pulse (ATDP) or tone (ATDT) dialing. You also can modify the dialing command with several other characters that are explained in the Dial Modifier Commands section, later in this chapter.
  • Page 68 Pulse or Tone Dialing Default: T The ISIHI-2S’s modems dials numbers by using pulse dialing, tone dialing, or a combination of both methods. Pulse dialing, used by rotary-dial telephones, uses the timed opening and closing of a relay to encode the numbers. Tone dialing, used by push- button (touch-tone) telephones, uses dual tone multifrequency (DTMF) dialing.
  • Page 69 Disable Data Calling Tone Transmission Use the ^ command to disable the transmission of data calling tones. In the following example, the ^ command is used to tone dial 555-1212 and suppress data calling tone transmission. ATDT^5551212 MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 70: Phone Number Memory Commands

    You can automatically dial a telephone number that is stored in the modem’s number memory by typing ATDS n , where n = 0 through 3. For example, you can dial a number stored at N2 by typing ATDS2 in terminal mode and pressing E NTER MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 71: Configuration Storage And Recall Commands

    Chapter 4—MODEM AT Commands, S-Registers, Result Codes Configuration Storage and Recall Commands The ISIHI-2S stores parameters in two places. It stores factory default parameters in read-only memory (ROM), and customized parameters in nonvolatile random access memory (NVRAM). You cannot change the default parameters in ROM, but you can change parameters in temporary memory and then store them in NVRAM as custom settings.
  • Page 72 Chapter 4—MODEM AT Commands, S-Registers, Result Codes Modem Response (Result Code) Commands ISIHI-2S modems can give responses to commands. The most common is OK , but the modems also can alert you or your software to dial tones, busy signals, connection speeds, and whether the connection is made with error correction or compression enabled.
  • Page 73 View Numbers in Blacklist If blacklisting is in effect, this command displays the numbers for which the last call attempted in the previous two hours failed. In countries that do not require blacklisting, the ERROR result code appears. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 74: Online Connection Commands

    Echo Online Data Characters n = 1 Default: F1 This command determines if the modem echoes data from the DTE. This command provides backward compatibility with some data communications software. F1 disables online data character echo. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 75 In non-error correction mode, there is no polite way to request a disconnect. As a result, some garbage may be received when a hang-up command is issued. Y0 disables the modem’s use of the break signal. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 76 Chapter 4—MODEM AT Commands, S-Registers, Result Codes RS-232 Interface Commands These commands define how an ISIHI-2S modem uses and responds to standard RS- 232 signals. &C n Carrier Detect Control n = 0 or 1 Default: &C1 The &C command lets you control the Carrier Detect (CD) signal on the RS-232/V.24 interface.

  • Page 77: Error Correction And Data Compression Commands

    %C n Data Compression n = 0 or 1 Default: %C1 The %C command allows you to disable data compression. Data compression is normally enabled. %C0 disables V.42bis/MNP 5 data compression. %C1 enables V.42bis/MNP 5 data compression. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 78: Immediate Action Commands

    ( OK or ERROR ). I3 returns the default speed and controller firmware version number. Use this command to identify your modem’s firmware level before calling Multi-Tech Technical Support. (This is the same as I or I0.) I4 returns the firmware version for the data pump (for example, 94 ).

  • Page 79: Flow Control Commands

    \Q1 enables XON/XOFF software flow control. XON/XOFF flow control is an in-band method of data flow regulation. In-band data regulation means that the XON (^Q) and XOFF (^S) characters are inserted into the stream of data rather than using separate MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 80 Data Buffer Control n = 0 Default: \J0 This command enables data buffer control. Serial port speed is independent of connect speed. \J0 enables data buffer control. This is the default, and the only supported command format. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 81: Escape Sequences

    O0 causes the modem to exit command mode and return to online data mode. O1 causes the modem to issue a retrain before returning to online data mode. O3 causes the modem to issue a rate renegotiation before returning to online data mode. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 82: Diagnostic Commands

    M3 causes the speaker to remain on until the carrier is detected, except while dialing. This means the speaker is on during dialing, so you hear the dialing tones, but turns off during the handshake, so you eliminate the squawking . MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 83: Modem S-Registers

    Chapter 4—MODEM AT Commands, S-Registers, Result Codes Modem S-Registers This chapter describes the ISIHI-2S’s S-registers , which are small regions of memory where modem configuration information is stored. Whereas AT commands tell a modem what to do, S-registers tell the modem how to do it. Each S-register has a name that consists of the letter S and a number (S0, S1, S2, etc.), hence the term S-register .
  • Page 84 The maximum S7 value is 255 seconds for the US model, 45 seconds for Canadian and International models, and 55 seconds for the UK model. S7 also determines the wait for silence time for the @ dial modifier. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 85 S35 enables or disables the V.25 data calling tone, which allows remote data, fax and voice discrimination. Setting S35 to zero (0) disables V.25 data calling tone; setting S35 to 1 enables data calling tone. The default setting is 1. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 86 This register is used for testing and debugging only. S43 enables and disables V.32bis start-up auto mode operation. Set S43 to zero (0) to disable start-up auto mode, or 1 (the default) to enable start-up auto mode. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 87 2. When configuring S-registers, it is a good practice to include the verification read command in the same command string as the configuration assignment command. In the three preceding examples, type ATS8=5S8?, ATS0=4S3?, and ATS7=75S7?, respectively. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 88 For maximum throughput, the ISIHI-2S’s default configuration is for originating a call to another 33,600 bps modem that supports error correction, data compression, and flow control. If the receiving modem is not compatible, the ISIHI-2S can match any ITU-T or Bell standard modem (but not proprietary protocols).

  • Page 89: Modem Result Codes

    Modem detected carrier at 45000 bps and gone online. CONNECT 56000 Modem detected carrier at 56000 bps and gone online. DELAYED Delay is in effect for the dialed number. BLACKLISTED The dialed number is blacklisted. BLACKLIST FULL The blacklist is full. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 90 Error Correction V42bis LAP-M V.42 error control and V.42bis data compression LAP-M V.42 error control only MNP5 MNP4 error control and MNP 5 data compression MNP4 MNP 4 error control only NoEC No error control protocol MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 91: Result Codes

    TERMINAL ADAPTER AT Commands, S-Registers, and Result Codes MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 92: Chapter 5-Terminal Adapter At Commands, S-Registers, And Result Codes

    AT commands recognized by the ISIHI-2S terminal adapter are listed by function on the following page. For an alphabetic list of AT commands, see AT commands in the index.
  • Page 93 Store telephone number Dial a Stored telephone number Persistent DTR dialing Escape sequence options @P3= Parity @P4= Data bits @P6= Stop bits Data Call Commands Answer Dial Hang up Display product information Return online @Config Start ConfigMenu MultliModemISI Hybrid Series, ISIHI-2S...
  • Page 94 Use the %A97= command to select between the two methods. %A97=0 En bloc sending during call SETUP %A97=1 Overlap sending during call SETUP MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 95 Values:n = 0, 1, or 5 Default: !C0=1 (Northern Telecom DMS-100) Use the !C0= command to select one of the seven network switch types supported by the ISIHI-2S. Factory default setting is !C0=1 (Northern Telecom DMS-100). !C0=0 AT&T 5ESS !C0=1 Northern Telecom DMS-100...
  • Page 96 !L Display Network Configuration Values: n/a Default: n/a Use to display the ISIHI-2S’s current DN, SPID, TEI, Data protocol, and switch type. Displays the current network configuration >Dn Embedded Protocol Analyzer Values: 0, 1, 2, 3, 4, 98 or 99...
  • Page 97 Controls whether the TA sends result codes to the computer. (Use the V command to select the format of the result codes.) Enable result codes. Disable result codes (quiet mode) for applications such as computer- controlled auto dialing. MultliModemISI Hybrid Series, ISIHI-2S...
  • Page 98 ATZ. Note that whereas the &F0 reset command always restores the factory default profile, the Z reset command restores either the factory default or the stored profile, depending on how the &W command is set. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 99 When CTS goes low, data flow from the computer is suspended until CTS goes high again. This method works with pacing, which uses the RTS signal on pin 4. Hardware flow control cannot be enabled unless an error correction protocol is selected. MultliModemISI Hybrid Series, ISIHI-2S...
  • Page 100 These profiles are stored in permanent memory and are not user-configurable. (See Appendix A.) &F0 Profile 0 — Modem-like operation (default) &F2 Profile 1 — V.120 async operation &F4 Profile 3 — PPP async operation MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 101 DSR is always high. &S1 DSR acts normally; that is, it follows the state of the CD signal, which goes high when the ISIHI-2S detects a carrier signal, and goes low when the carrier signal is lost. &S2 DSR is always high, except on disconnect, when it drops for the period of time set by S10 and then goes high again.
  • Page 102 %E command to set the modem to respond only to the <break> method, to respond to either +++ or the <break> method, or to ignore both methods and not escape. Modem won’t escape +++ escape method <BREAK> escape method Both +++ and <BREAK> escape methods MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 103 Use these commands to make or configure data calls. A Answer Call Values: none Default: none Forces TA to answer an incoming call. To cause the TA to autoanswer, set register S0 to a value higher than 0. MultliModemISI Hybrid Series, ISIHI-2S...
  • Page 104 @CONFIG Start ConfigMenu Values: none Default: none Starts TA’s internal configuration utility, which you can then use to customize the TA’s configuration for your particular application. You must enter the command while in your communication program’s terminal mode. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 105: Terminal Adapter S-Registers

    S2 Escape Character Unit: Decimal ASCII code Range: 0–127 Default: 43 (+) Specifies the character used by the TA to escape from data mode and return to command mode. MultliModemISI Hybrid Series, ISIHI-2S...
  • Page 106 Sets the time allowed in an escape sequence from the receipt of the A in AT to the receipt of the carriage return. If the S32 time interval expires before you press E , the escape NTER sequence ends. The default time is 2 seconds. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 107 Unit: Decimal ASCII code Range: 0-2048 Default: 2048 Sets the maximum size of data frames in X.75 mode. This register can be configured to contain as many as 2048 characters per frame, and is the TA’s default value MultliModemISI Hybrid Series, ISIHI-2S...

  • Page 108: Terminal Adapter Result Codes

    CONNECT 56000/PPP COMPRESSED CONNECT 56000/V.120 56VC CONNECT 56000/V.120 COMPRESSED CONNECT 56000/X.75 56XC CONNECT 56000/X.75 COMPRESSED CONNECT 64000 CONNECT 64000/PPP 64PC CONNECT 64000/PPP COMPRESSED CONNECT 64000/V.120 64VC CONNECT 64000/V.120 COMPRESSED CONNECT 64000/X.75 64XC CONNECT 64000/X.75 COMPRESSED CONNECT MODEM MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 109: Modes Of Operation

    These characters are ignored by the TA. For example, the TA would read the following dial strings the same way: ATD16127853500 <cr> ATD 1-612-785-3500 <cr> ATD 1 (612) 785-3500 <cr> Canceling a Call To cancel a call before the TA makes a connection, press any key. MultliModemISI Hybrid Series, ISIHI-2S...

  • Page 110: Answering A Call

    To hang up a call, first escape to online command mode ( +++AT<cr> ), then enter the H command ( ATH<cr> ). The escape sequence and hang up command can be combined into one command string: +++ATH<cr> . MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 111 Troubleshooting MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 112: Chapter 6-Troubleshooting

    This chapter covers common problems you may have with your ISIHI-2S and how to solve them. Your ISIHI-2S was thoroughly tested at the factory before shipping. If you are unable to successfully connect, or if you experience data loss or garbled characters, during connecting, it is possible that the modem or terminal adapter is defective.
  • Page 113 • The serial port may be defective. If you have another serial port, install the TA on it, change the COM port setting in your software, and try again. • The TA may be defective. Call Tech Support for assistance (see Chapter 6). MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 114 • A faulty communications device, computer, or software at the other end • Incompatibility between communications devices • An improperly configured ISIHI-2S TA Narrow the list of possibilities by using extended result codes. To enable them, enter ATV1X2 and press ENTER while in terminal mode or include V1X2 in the TA ’s initialization string (V1X2 is enabled by default).
  • Page 115 • Your computer and the remote computer may be set to different parities. Check with the remote system with which you are communicating and set your communications software to use the same parity as the remote system. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 116 Chapter 6—Troubleshooting Guide MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 117 Service, Warranty, and Technical/BBS MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 118: Introduction

    Support section. It includes technical support telephone numbers, space for recording information about your ISIHI-2S, and information on how to send it in should you require service. The final sections explain how to get information and technical support from our BBS, how to upgrade ISIHI-2S via flash PROM, and information on the Compuserve/ Internet forums.

  • Page 119: Service

    • Return billing and return shipping addresses • Contact name and phone number • Check or purchase order number for payment if the ISIHI-2S is out of warranty (The standard repair charge is $95. This price is valid at the time of this publication but could change in the future.
  • Page 120 You cannot read messages from the Message Menu. Leaving a Message The Multi-Tech BBS has no public discussion area. To leave a personal message, select the Message Menu by entering M at the Main Menu. Enter E, then press RETURN to select the Sysop conference.

  • Page 121: Upgrading The Isihi-2S With Flashpro

    Chapter 7—Service, Warranty, and Technical/BBS Upgrading the ISIHI-2S with FlashPro The ISIHI-2S has a flash PROM that contains firmware code for the hardware. At various times, Multi-Tech adds enhancements and/or fixes to the firmware. The flash technology used in the ISIHI-2S allows you load these upgrades into the PROM through the ISIHI-2S TA serial port.
  • Page 122 Chapter 7—Service, Warranty, and Technical/BBS MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 123: Appendix

    Appendix MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 124: Appendix A: Determining Current System Settings

    /*ibm COM1*/ If you are removing COM 2, delete the following line: {0, IBM_BOARD, 1,3,8 (sd)0x2f8,0, 0,MCRBIT3}, /*ibm COM2*/ 4. After you have modified these files, continue with the ISIHI-2S driver installation using the freed IRQ value(s). MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 125: Appendix B: Base I/O Switch Settings

    The table below provides the DIP switch settings for valid base I/O addresses of the ISIHI-2S. The switches can be set to OPEN (O in the table below) or to CLOSED (C in the table below). Holding the board with the switch facing you (reading numbers 1-8 left to right), the UP position for the switch is OPEN, and the DOWN position is CLOSED.
  • Page 126 Appendix I/O Addr. DIP Switch Settings (continued) (hex) 210* O P E N * Denotes default setting MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 127 Appendix I/O Addr. DIP Switch Settings (continued) (hex) MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 128 Appendix I/O Addr. DIP Switch Settings (continued) (hex) MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 129: Appendix C: Pin Assignments

    Pin 7 Not connected Pin 8 Not connected The RJ-11 Pin-outs of Analog Fax/Modem DAA Pin 1 Not connected Pin 2 Not connected Pin 3 Pin 4 Ring Pin 5 Not connected Pin 6 Not connected MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 130: Appendix D: Isihi-2S Testing Utilities

    Appendix Appendix D: ISIHI-2S Testing Utilities This disk contains two files to be used in conjunction with MutiModemISI boards. These files are described in two sections: • Operation with factory default settings (file name: ISI608.BIN) • Operation with other than the factory default settings (file name: 608TERM.EXE) Note: This program is a DOS utility.
  • Page 131 608TERM [-Axxxx] 2. Changing only the IRQ setting, the command line takes the form: 608TERM [-Iy] 3. Changing both the base IO address and the IRQ settings, the command line takes the form: 608TERM [-Axxxx] [-Iy] MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 132 This message indicates that keyboard entry can now be performed. Any characters typed on the keyboard are sent through the ISI board to the modem and then returned to display on the PC. When operation has been verified, exit the utility by pressing F10. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 133: Appendix E: Configuration Profiles

    (see Chapter 5, Terminal Adapter AT Commands, S-Registers, Result Codes ). 4. Type AT&W0 and press ENTER to save your customized port configuration. 5. Your customized profile now loads automatically whenever the TA is turned on or reset. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 134 Set escape sequence guard time to 2 seconds S50=1 Caller Line ID Enabled S52=1 Auto-Protocol Detection Enabled S53=2048 Maximum Frame Size 2048 Characters &S1 DSR follows DCD $SB1152 Select 115,200 bps for DTE interface Select verbose messages MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 135 Set escape sequence guard time to 2 seconds S50=1 Caller Line ID Enabled S52=1 Auto-Protocol Detection Enabled S53=2048 Maximum Frame Size 2048 Characters &S1 DSR follows DCD $SB1152 Select 115,200 bps for DTE interface Select verbose messages !Z=5 Enable V.120 data protocol MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 136 Set escape sequence guard time to 2 seconds S50=1 Caller Line ID Enabled S52=1 Auto-Protocol Detection Enabled S53=2048 Maximum Frame Size 2048 Characters &S1 DSR follows DCD $SB1152 Select 115,200 bps for DTE interface Select verbose messages !Z=12 Enable X.75 data protocol MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 137 Set escape sequence guard time to 2 seconds S50=1 Caller Line ID Enabled S52=1 Auto-Protocol Detection Enabled S53=2048 Maximum Frame Size 2048 Characters &S1 DSR follows DCD $SB1152 Select 38,400 bps for DTE interface Select verbose messages !Z=9 Enable MLPPP data protocol MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 138: Appendix F: Ordering Isdn Bri (2B+D) Lines

    Use the ISDN BRI (2B+D) Line Ordering Checklist provided later in this document for protocol specifications. • The type of jack required by the ISIHI-2S (i.e., RJ-45 male 2-wire U Basic Rate Interface). 4. Wait for installation notification from the LEC. Ask the LEC representatiave what type of switch is used (AT&T 5ESS and NT DMS-100 are most prevalent).
  • Page 139 • 1B service • Data only on 1 B channel • One directory number Capability C (previously Generic Data C ) • 1B service • Alternate voice and data on one B channel • One directory number MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 140 • Two directory numbers Applications for Capability S include: • 115.2K or 128 Kbps data • 56K/64K bps data with voice or modem support • Generic 115.2K/128 Kbps data transfer applications (including remote access and LAN/WAN connectivity and telecommuting). MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 141 ________ BCS-32 and later software (Pvc1), or ________ National ISDN-1 (Pvc2) ________ Siemens EWSD with National ISDN-1 4. Request that the ISDN line you are ordering allocates one dynamic TEI (Terminal Endpoint Identifier) per phone number. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 142 Bearer Service: Circuit Switched Voice and Data Permitted on any B channel (Packet Mode Data not permitted) 6. Select a long distance carrier (record here)________________________ 7. Contact the selected long distance carrier and request Circuit-Switched 64 K bps Clear Channel Access (if available). MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 143 Except for the ability to spread two calls across two phone numbers, multipoint lines offer no special features and may create complications. However, if you use a multipoint line, the parameters are similar to the point-to-point lines, except for the SPIDs. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 144 Line Type: Basic rate, functional EKTS: No CACH: No Initializing terminal: Yes Bearer services: Circuit-switched voice & data permitted (Packet mode data not permitted) Circuit-switched service: Yes Packet-switched service: No Protocol version: Functional Pvc1 TEI: Dynamic MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 145 Ameritech Data Services http://www.ameritech.com/products/business/asg data_services.html Bell Atlantic http://www.bell-atl.com/ Bell Atlantic Small Business ISDN http://www.bell-atl.com/isdn/sbs/ Bell Atl. ISDN Fact Sheet http://www.ba.com/isdn.html Bell Atl. Residence Customer Information http://www.bell-atl.com/customer/consumer/home.html Bell Atl. Residence Customer ISDN http://www.bell-atl.com/customer/consumer/isdn/ Bell Atl.Residential ISDN Market Trial http://www.ba.com/nr/95/jul/resisdn.html MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 146 Southwest Bell Tariff http://www.icus.com/swbtariff.html Southwestern Bell Telephone Houston Digiline info http://www.icus.com/swb-hou.html SNET (Connecticut) http://www.snet.net/ US West Faxback Service: 800-PATHWAY (item 99=Index) US West Center (Minneapolis): 800-223-7508 U.S. West http://www.uswest.com U.S. West ISDN Info http://www.uswest.com/isdn/index.html WilTel http://www.wiltel.com/ MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 147 Netherlands Rollout voor de ISDN FAQ http://student.twi.tudelft.nl/~s674129/rollout.html Neuradne Telekom informacije (Slovenia) http://www.abm.si/~dalibor/telekom/ Middle East Bezeq - Israel TeleComm http://www.bezeq.co.il/ Israel http://wwwold.technion.ac.il/teach/topnet/cnpp95/ISDN_in_Israel/isdn.html Australia Telestra http://www.telstra.com.au/prod-ser/isdn/index.html Japan http://www.ntt.jp/ NTT official server http://www.info.hqs.cae.ntt.jp/ NTT ISDN Info http://www.info.hqs.cae.ntt.jp/SER/ISDN/ISDN.html Russia Russian ISDN Home Page http://mp.aha.ru/koi/isdn/ MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 148 The New York ISDN Users Group http://www.interport.net/~digital/index.html The Texas ISDN Users Group (TIUG) http://www.crimson.com/isdn/ Southern African ISDN Forum http://www.saif.org.za/ IIIUF - Indonesian ISDN & Internet User Forum http://www.idola.net.id/i3uf/i3uf.htm Bellcore ISDN Home Page (Bell & NIUF documents) http://www.bellcore.com/ISDN/ISDN.html MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 149: Appendix G: Ascii Conversion Chart

    Data Link Escape Escape Acknowledge Device Control 1 File Separator Bell or Alarm Device Control 2 Group Separator Backspace Device Control 3 Record Separator Horizontal Tab Device Control 4 Unit Separator Line Feed Negative Acknowledge Delete MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 150: Appendix H: Dial Pulses And Tones

    For example, the digit 4 is dialed by combining two tone frequencies: 770 Hz from the second row, and 1209 Hz from the first column. In another example, the digit 9 is dialed with tone frequencies 852 Hz and 1477 Hz. Digits 1209 1336 1477 MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 151 This fourth column provides for extended PBX control functions. The actual functions that are provided depend on the PBX manufacturer’s implementation and feature set. Digits 1209 1336 1477 1633 MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 152: Appendix I: At Command Summary (Modem)

    = phone # Dial telephone number s , where s may include up to 40 alpha-numeric characters, and the L, P, T, V, W, comma (,), colon (:), semicolon (;), !, $, @ and ^ dial string modifiers MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 153 Display default speed and controller firmware version Display firmware version for data pump (for example, 94) Display country code (for example, NA Ver. 1) &J n Auxiliary Relay Control n = 0 &J0 The auxiliary relay is never closed. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 154 RTS/CTS hardware flow control. Same as &K3 S r = n Set Register Value r = 0–8,10-11, 28, 35, 37, 42-43, or 89; n varies Set value of S-register r to value of n , where n is entered in decimal format. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 155 Extended result codes with NO DIAL TONE and BUSY Extended result codes with NO DIAL TONE and BUSY Extended result codes with NO DIAL TONE and BUSY Basic result codes with NO DIAL TONE and BUSY MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 156 The modem does not transmit data calling tones. +++AT<cr> Escape Sequence Puts modem in command mode while still remaining on line. Type +++ followed by the letters A and T, up to ten command characters and a RETURN. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 157: Appendix J: S-Register Summary (Modem)

    S89 1 sec 0, 5-255 Sets the length of time in the off-line command mode before the modem goes into standby mode. A value of zero prevents standby mode; a value of 1-4 sets the value to 5. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 158: Appendix K: Result Code Summary (Modem)

    Modem detected carrier at 45000 bps and gone online. CONNECT 56000 Modem detected carrier at 56000 bps and gone online. DELAYED Delay is in effect for the dialed number. BLACKLISTED The dialed number is blacklisted. BLACKLIST FULL The blacklist is full. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 159 Error Correction V42bis LAP-M V.42 error control and V.42bis data compression LAP-M V.42 error control only MNP5 MNP4 error control and MNP 5 data compression MNP4 MNP 4 error control only NoEC No error control protocol MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 160: Appendix L: At Command Summary (Ta)

    Appendix L: AT Command Summary (TA) How To Use AT Commands Usually, your data communication software controls the ISIHI-2S terminal adapters for you. However, you may also want to use AT commands,which give you complete control over the TAs. Be careful using these commands because loose its ability to control the TA.
  • Page 161 Enable result codes Disable result codes for applications such as computer-controlled auto dialing Terse/Verbose Result Codes Connect Messages Reset to Stored Profiles %A97= n Dialing Method n = 0 or 1 %A97=0 En bloc sending %A97=1 Overlap sending MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 162 = 0, or 1 Default: $D0 (Disabled) Enables or disables persistent DTR dialing (PDD). PDD causes the terminal adapter to automatically and continually redial stored telephone number 0 when the port has no active calls and DTR is high. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 163 &S0 DSR is always high. &S1 DSR acts normally (follows state of CD signal—goes high when the ISIHI-2S detects a carrier signal and goes low when carrier signal is lost) &S2 DSR always high except on disconnect when it drops for period of time set by S10; then goes high again &V n...
  • Page 164 Use this command only to set the number of stop bits the TA uses when turned on. Once the TA receives an AT command from the computer, it automatically adjusts to the number of stop bits the computer is using. @P6=1 1 stop bit @P6=2 2 stop bits MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 165: Appendix M: S-Register Summary (Ta)

    S52 decimal 0 or 1 Sets whether the mechanism for identifying V.120, X.75, or PPP operation is enabled or disabled. S53 decimal 0-2048 2048 Sets the maximum size of data frames in X.75 mode. MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 166: Appendix N: Result Codes (Ta)

    56PC CONNECT 56000/PPP COMPRESSED CONNECT 56000/V.120 56VC CONNECT 56000/V.120 COMPRESSED CONNECT 56000/X.75 56XC CONNECT 56000/X.75 COMPRESSED CONNECT 64000 CONNECT 64000/PPP 64PC CONNECT 64000/PPP COMPRESSED CONNECT 64000/V.120 64VC CONNECT 64000/V.120 COMPRESSED CONNECT 64000/X.75 64XC CONNECT 64000/X.75 COMPRESSED CONNECT MODEM MultiModemISI Hybrid Series, ISIHI-2S...

  • Page 167: Appendix O: Regulatory Agency Information

    FCC Regulations for Telephone Line Interconnection 1. No repairs are to be made by you. Repairs are to be made only by Multi-Tech Systems or its licensees. Unauthorized repairs void registration and warranty.

  • Page 168: Canadian Limitations Notice

    This precaution may be particularly important in rural areas. Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 169 Glossary MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 170 An analog signal becomes a carrier when it ure the system. is modulated by altering its phase, amplitude and frequency MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 171 “A”. Binary: A numbering system based on two digits, 1 and 0, which is conductive to the two-state digital electronics used within computers. All input to a computer is encoded as a MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 172 Daisy-chain: A method of connecting multiple devices in a Clipboard: An electronic holding place for the most recent series, one after another. cur or copy made from a document. Whatever is on the MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 173 With over 1200 members, it Directory: A logical subdivision of a computer’s disk space sponsors shows and seminars, gives awards for outstand- used to organize a group of files. A directory can be thought MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 174 It is a synchronization and Flash Memory: A memory chip that holds its content negotiation process, accomplished by the exchange of without power, but must be erased in bulk. The term comes predefined, mutually recognized control codes. MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 175 Hard Disk: A metal disk covered with magnetic recording and data over a digital communications line. material. Some can hold up to several gigabytes of informa- ISI (Intelligent Serial Interface): Multi-Tech’s multiport tion. Contrast with floppy disk. serial card with an on-board processor and 50K or RAM for Hardware: The equipment that makes up your computer data buffering.
  • Page 176 MNP7 never became a de facto standard because of V.42 bis “4-to-1” compression. Modem: A communications device that enables a computer to transmit information over a telephone line. It converts the MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 177 Differential PSK replaces this technology signals from losing their strength. because it is less prone to error. Modems using PSK normally operate at 1200 bps. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 178 Threshold: A value or condition which, when reached, triggers an event. Spoofing: A command recognized by modems which have been manufactured specifically for use within the UNIX UUCP (UNIX to UNIX Copy) facility. Spoofing is the process MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 179 4-wire leased lines. Primarily for 800 numbers are WATS lines in. The calls are charges to synchronous use. Not common in North America. the holder of the 800 number at a discounted rate. MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 180 XModem. It sends file name, date and size first, and responds well to changing line conditions due to its variable length blocks. It uses CRC error correction and is effective in delay-induced satellite transmission. MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 181 Index MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 182 CBX phone systems, 76 Carrier Control, 74 CD signal command string limit, 64 control of, 76 D, 67, 107 comma, 85 DSn, 70 command buffer, 65 E, 72, 95 Command mode, 107 entering, 90 command mode, 64 MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 183 DTMF (dual tone multifrequency) Hang Up command, 108 dialing, 68 hanging up, 67, 81 frequencies, 149 Hardware flow control, 97 DTR (Data Terminal Ready) signal, 100, 161 Help File, 58 DTR dialing, 100, 161 DTR signal control of, 76 MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 184 64, 81, 83 S-registers, 87, 103 Ordering Codes (IOCs), 138 definition, 83 Ordering ISDN Without IOCs, 140 reading, 87 Overlap sending, 92 S0, 83, 87, 101, 108, 159 S1, 83 S10, 85, 97, 99, 162 MultiModem ISI Hybrid Series, ISIHI-2S...
  • Page 185 12 Telephone numbers, stored, 100, 161 testing commands, 82 tone dialing, 149 Tone-Dial command, 68 tone-dialing, 85 Troubleshooting, 53 Using ISDN Ordering Codes (IOCs), 138 V.120 protocol, 95, 161 V.42, 77 Vendors’ ISDN Association (VIA), 143 MultiModemISI Hybrid Series, ISIHI-2S...
  • Page 186 Glossary MultiModem ISI Hybrid Series, ISIHI-2S...

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