® Part No.
3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145 3Com Corporation, 1997. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Corporation.
® 5-YEAR LIMITED WARRANTY The warranty for the 3ComImpact™ IQ External ISDN Modem is as stated in the Limited Warranty statement found at the back of this User Guide with the exception that the 3ComImpact IQ External ISDN modem has a 5-year limited warranty on the hardware in lieu of the standard 1-year warranty. The software for the 3ComImpact IQ External ISDN Modem has a 90-day warranty as further specified in the Limited Warranty statement.
CONTENTS ABOUT THIS GUIDE Introduction 1 How to Use This Guide Conventions 2 1 1 INTRODUCTION 3C882 ISDN Modem Features 1-2 3C882 ISDN Modem Package Contents 1-4 Before You Install the 3C882 ISDN Modem 1-5 IBM PC or Compatible Requirements 1-6 Apple Macintosh Requirements 1-6 ISDN Information 1-7 2 INSTALLING THE 3C882 ISDN MODEM Familiarizing Yourself with the 3C882 ISDN Modem Installing a Serial Cable 2-3 Installing the ISDN Cable 2-5 Installing Analog Equipment 2-5 Installing the Power Cable 2-7 3
Configure Dial-Up Networking 3-23 Dial Up Networking for Windows 95 3-23 To configure Dial-Up Networking manually: 3-23 Running the Internet Set-Up Wizard 3-24 Dial-up Networking for Windows NT 4.0 3-26 Setup for 230Kbps 3-30 Setting up 230K for Windows NT 3.5.1 3-30 Setting up 230K for Windows 95 and Windows NT 4.
PLACING AND RECEIVING CALLS Placing ISDN Data Calls 7-1 Placing Calls Automatically 7-2 Placing Calls Manually 7-2 Placing Multilink PPP Calls 7-3 Placing a TollMizer Call 7-4 Receiving ISDN Data Calls 7-5 Placing Voice Calls Using an Analog Phone Port 7-6 Receiving Voice Calls Using an Analog Phone Port 7-6 ISDN Call Logging 7-7 TROUBLESHOOTING Checking the Basics 8-2 Monitoring LEDs 8-2 Monitoring the TEST LED 8-2 Monitoring the D Channel LED 8-3 Monitoring the B Channel LEDs 8-3 Monitoring the SD LED
B AT COMMANDS, S REGISTERS, AND RESULT CODES AT Command Set B-1 S Registers B-4 Result Codes B-9 C SPECIFICATIONS 3C882 ISDN Modem Specifications C-1 RS-232 COM Port Pin Specifications C-2 PC Serial Cable Pin Specifications C-3 Macintosh Serial Cable Pin Specifications C-3 D CONFIGURATION USING DOS Configuration Using DOS D-1 GLOSSARY INDEX LIMITED WARRANTY 3COM END USER SOFTWARE LICENSE AGREEMENT FCC CLASS B CERTIFICATION STATEMENT CANADIAN NOTICE
FIGURES 1-1 Network Access with the 3C882 ISDN Modem 1-2 ISDN Information Sheet 1-7 2-1 2-2 2-3 2-4 2-5 2-6 2-7 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-20 1-1 Installation Steps for the 3C882 ISDN Modem 2-1 Front Panel LED Indicators 2-2 Back Panel Connectors 2-2 Computer to 3C882 ISDN Modem COM Port Connection ISDN Cable Connection 2-5 Analog Equipment Connection 2-6 Power Cable Connection 2-7 2-4 Main Configuration Steps for a PC 3-1 Run Dialog Box 3-2
3-21 Phonebook Entry Screen 3-28 3-22 Server Type Screen 3-28 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-10 4-11 4-12 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20 3C882 Configuration Steps for a Macintosh 4-1 Installation Message Box 4-2 Successful Installation Message Box 4-3 3ComImpact IQ Program Icon 4-3 Select Modem Port Screen 4-4 SPID Wizard Start Screen 4-4 First Telephone Number Screen for Macintosh 4-5 Second Telephone Screen for Macintosh 4-6 Configuration Dialog Box for Macintosh 4-7 Voice Call Routing De
TABLES 1 Text Conventions 2 Notice Icons 2 2 2-1 Front Panel LED Indicator Definitions 5-1 Changing Default Settings 2-2 5-5 6-1 How to Use Call Waiting 6-2 6-2 How to Use Call Conference 6-3 6-3 How to Use Call Transfer 6-4 8-1 Symptoms, Causes, and Solutions 8-4 8-2 Microkey Error Codes and Their Meaning A-1 A-2 A-3 A-4 A-5 8-8 Supporting Supplementary Voice Features A-4 Line Configuration for AT&T 5ESS NI1 A-5 Line Configuration for AT&T 5ESS Custom A-6 Line Configuration for DMS 100 A-7 Line Con
ABOUT THIS GUIDE Introduction This guide describes how to install, operate, and troubleshoot the 3ComImpact IQ External ISDN Modem, referred to throughout this guide as the 3C882 ISDN modem. Be sure to read the README.TXT or readme files on the applicable software utility diskette for the latest product information. How to Use This Guide The following table shows where to find specific information in this guide.
2 ABOUT THIS GUIDE Conventions Table 1 and Table 2 list text and icon conventions that are used throughout this guide. Table 1 Text Conventions Convention Description Text represented as screen display This typeface is used to represent displays that appear on your terminal screen, for example: NetLogin: Text represented as commands This typeface is used to represent commands that you enter, for example: SETDefault !0 -IP NETaddr = 0.0.0.
1 INTRODUCTION The 3ComImpact IQ External ISDN Modem (referred to as the 3C882 ISDN modem throughout this guide) is an external, stand-alone Integrated Services Digital Network (ISDN) Basic Rate ISDN modem for connection with digital telephone services from local telephone companies in North America. One model (3C882) supports both IBM or IBM-compatible PCs and Apple Macintosh computers.
1-2 CHAPTER 1: INTRODUCTION the highest reliability and error-free performance possible. With hi/fn compression and a high-speed serial port, the 3C882 ISDN modem allows you to reach transmission speeds of up to 230.4 Kbps. ISDN technology reduces call setup times by more than 50% compared to V. fast/V.34 analog modem setup times; connection is established in 3 seconds. Setting up the 3C882 ISDN modem takes only 15 minutes.
3C882 ISDN Modem Features 1-3 High Performance ■ hi/fn, version 5, compression, for data throughput of up to 230.4 Kbps, which conforms to these IETF RFC’s: The PPP Compression Control Protocol (1962), and PPP LZS Compression Protocol (1974) ■ An asynchronous RS-232-D data port for connectivity to IBM or compatible PC and Apple Macintosh serial ports at rates of up to 230.
1-4 CHAPTER 1: INTRODUCTION Security ■ Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) support on both single-channel and Multilink PPP calls (IETF RFC 1994) Voice Features ■ Dynamic bandwidth allocation (DBA), which allows you to place or receive a voice call while a Multilink PPP call is active ■ Two analog voice ports for attaching analog telephone equipment (touch-tone or cordless telephones, fax and answering machines, and analog modems) to the ISDN
Before You Install the 3C882 ISDN Modem 1-5 ■ 3.5-inch installation diskettes for PCs running Windows® 95, Windows NT®, or Windows 3.x ■ 3.5-inch installation diskette for PCs running DOS ■ 3.
1-6 CHAPTER 1: INTRODUCTION IBM PC or Compatible Requirements An IBM-compatible PC must have the following: ■ ■ A 386, 486, or Pentium processor Microsoft Windows 95, Windows NT, or Windows 3.x, MS-DOS, or IBM PC DOS 3.x or higher ■ 640 KB of conventional memory ■ A hard disk drive with 4 MB of free space ■ A high-density 3.5-inch floppy diskette drive ■ VGA or compatible video graphics adapter and monitor (color recommended) ■ An available serial communications port For 230.
Before You Install the 3C882 ISDN Modem 1-7 ISDN Information Enter your ISDN telephone number(s) in the information sheet shown in Figure 1-2. You will need this information during configuration of the 3C882 ISDN modem. Although the 3C882 ISDN modem automatically configures the ISDN switch type and Service Profile Identifier (SPID) number(s), you should indicate the switch type and SPID(s), if any were assigned. You may need to refer to this information for technical support.
1-8 CHAPTER 1: INTRODUCTION you ordered one ISDN telephone number, write 1. If you ordered two ISDN telephone numbers, write 2. Ordering two ISDN telephone numbers allows you to conduct two simultaneous calls on both analog phone ports. ISDN Telephone Number 1. Write down your ISDN telephone number provided to you by the telephone company ISDN representative. ISDN Telephone Number 2. Write the second ISDN phone number if you ordered two ISDN telephone numbers for your line. SPID Number.
2 INSTALLING THE 3C882 ISDN MODEM This chapter describes installation of the 3C882 ISDN modem for use with an IBM or IBM-compatible PC or an Apple Macintosh computer. This installation procedure assumes that you are familiar with your Apple Macintosh or IBM-compatible computer. If you are not, refer to the user guide that accompanied your computer for instructions on hardware installation and operating system commands. The main hardware installation steps are depicted in Figure 2-1.
2-2 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM Familiarizing Yourself with the 3C882 ISDN Modem You should familiarize yourself with the components of the front panel and back panel of the 3C882 ISDN modem prior to installation. The LED status display, shown in Figure 2-2, consists of eight front panel LEDs that are described in Table 2-1. 3 Com TM PWR TEST D B1 B2 SD RD 3ComImpact IQ DTR Figure 2-2 Front Panel LED Indicators Figure 2-3 shows the back panel. 9 VDC .
Installing a Serial Cable LED Color Description D Green D Channel Status. Indicates the ISDN physical network interface and D channel status: 2-3 Goes off once the physical and D channel signaling are synchronized. Flashes if the physical interface establishes synchronization and the ISDN D channel signaling procedures are not properly established. Remains lit if the physical ISDN interface is not synchronized or is disconnected. B1 Amber or green B1 Channel Activity.
2-4 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM To install the 3C882 ISDN modem serial cable: 1 Insert the 25-pin male end of a serial signal cable into the RS-232 serial port on the 3C882 ISDN modem’s back panel and tighten the connector screws, as shown in Figure 2-4. 2 -23 RS NU ISD 2 T 1 SE RE DC 9V X MA .
Installing the ISDN Cable 1Installing 2-5 the ISDN Cable To install the ISDN cable: 1 Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-45 ISDN line port labeled ISDN U on the 3C882 ISDN modem’s back panel, as shown in Figure 2-5. 2 -23 RS NU ISD 2 T 1 SE RE DC 9V X MA . 5A Figure 2-5 ISDN Cable Connection 2 Connect the RJ-11 (6-pin) connector end of the RJ-45/RJ-11 ISDN cable to the RJ-11 ISDN wall jack. CAUTION: An NT1 is built into the 3C882 ISDN modem.
2-6 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM 1 Insert one RJ-11 connector to a phone port labeled with a telephone icon on the back of the ISDN modem, as shown in Figure 2-6. 2 -23 RS NU ISD 2 ET 1 S RE DC 9V X MA .5A Figure 2-6 Analog Equipment Connection 2 Insert the other RJ-11 end into the appropriate RJ-11 port on the analog device. 3 If you have another analog device to install, repeat steps 1 and 2.
Installing the Power Cable 2-7 Specialized telephone equipment such as speaker phones that draw large amounts of power may not work on the 3C882 ISDN modem’s Phone port. Because these devices do not conform to the power specification of the 2500 touch-tone telephone standard, their operation is not guaranteed. Installing the Power Cable To install the power cable: 1 Connect the 3C882 ISDN modem power cable to the 9 VDC power connector on the back panel of the ISDN modem, as shown in Figure 2-7.
2-8 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM This completes the 3C882 ISDN modem installation. Refer to the appropriate chapter to configure the 3C882 ISDN modem; either Chapter 3, “Configuration for an IBM-Compatible PC Running Windows,”or Chapter 4, “Configuration for an Apple Macintosh Computer.
3 CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS This chapter describes the 3C882 ISDN modem configuration for use with the Windows operating system. Main topics are as follows: ■ Configuring the 3C882 ISDN modem ■ Setup using Windows 95 ■ Setup using Windows NT 3.5.1 ■ Setup using Windows NT 4.0 ■ Configuring Dial-Up Networking ■ Setup for 230Kbps For instructions on using the DOS operating system, refer to Appendix D.
3-2 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS Installing the 3C882 Software To install the 3C882 ISDN modem software: 1 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an available floppy drive. 2 If you are using Windows 95, select Run from the Start menu. If you are using Windows 3.x, select Run from the File menu. In the Run dialog box shown in Figure 3-2, type: a:\setup Figure 3-2 Run Dialog Box 3 Click OK.
Configuring the 3C882 ISDN Modem for a PC 3-3 4 Click Next to continue the installation. You will then be prompted to choose the directory in which to install the software. 5 If you would like to designate a directory other than the default directory, click Browse to do so. Otherwise, click Next to install the 3ComImpact IQ into the default directory. If you are running Windows 3.
3-4 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS 1 Double-click the 3ComImpact IQ icon shown in Figure 3-4. Figure 3-4 3ComImpact IQ Globe Icon You will see a start message, as shown in Figure 3-5. Figure 3-5 SPID Wizard Start Message for PC If you do not want to run the SPID Wizard, click Cancel to configure your values manually via the configuration dialog box (see Figure 3-9).
Configuring the 3C882 ISDN Modem for a PC 3-5 After the switch type is configured, the dialog box for the first telephone number appears, as shown in Figure 3-6. Figure 3-6 First Telephone Number Dialog Box for PC 2 Enter the first telephone number for your ISDN line. 3 Click Next. A message appears, indicating that the 3C882 ISDN modem is detecting the SPID for the first telephone number.
3-6 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS After the SPID is configured, the dialog box shown in Figure 3-7 appears. Figure 3-7 Second Telephone Number Dialog Box for PC 4 If you have a second telephone number for your ISDN line, enter it, and then click Next. If not, leave the field incomplete, and then click Done. After successful configuration of your switch type and SPID number(s), Figure 3-8 appears.
Configuring the 3C882 ISDN Modem for a PC 3-7 5 Click Finish. The on-line registration dialog box appears. Enter your information and then click Register Now. After your information is received, the Successful Registration dialog box will open. 6 Click OK. A message box indicates that you have correctly configured your 3C882 ISDN modem. 7 Click No to verify your settings and continue the setup procedure (recommended). To exit the installation program and leave the default settings, click Yes.
3-8 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS A message bar at the bottom of the dialog box provides status information about the 3C882 ISDN modem. The Configuration dialog box buttons do the following. Help. Click the Help button to access help for the Configuration dialog box. There is also comprehensive on-line help accessible from the 3ComImpact IQ program group box. Tools. Clicking on the Tools button produces buttons for Firmware, Tests, Save and Restore.
Configuring the 3C882 ISDN Modem for a PC 3-9 SPID(s) are configured, clicking on the 3ComImpact IQ globe icon will thereafter display the Configuration dialog box. If you add a second telephone number to your ISDN line after you run the SPID Wizard, you can use the SPID Wizard to detect the SPID for your second telephone number. To run the SPID Wizard for a second telephone number: 1 From the Configuration dialog box, check the Enabled box located in the Number 2 group box.
3-10 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS Additional configuration may be needed for Multilink PPP. For details refer to S registers 82 and 83 in Appendix B, “AT Commands, S Registers, and Result Codes”. Note that if you disable Multilink PPP (i.e., Register S80=0), you can still place a Multilink PPP call without changing the S 80 register value. In the dial string, enter the first telephone number, then the ampersand character followed by the second telephone number.
Configuring the 3C882 ISDN Modem for a PC 3-11 have both a telephone and a fax machine connected to your 3C882 ISDN modem’s analog ports. 232 RS- NU ISD 2 1 ET RES C 9 VD X MA • 5A 908 555 1212 908 555 1213 Figure 3-10 Voice Call Routing Default Setting Note the phone port check marks for each telephone number. This default configuration routes each telephone number to a specified port. The ISDN Call Waiting default configuration is best served by the recommended scenario shown in Figure 3-10.
3-12 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS Note that while you are using the fax machine, for example, you cannot use the telephone to place or receive calls because your ISDN line has only one telephone number. NU ISD 232 RS- 2 1 ET RES C 9 VD X MA • 5A 908 555 1212 908 555 1212 Figure 3-11 Configuration for One Telephone Number and Two Devices Two Telephone Numbers and Two Analog Devices.
Configuring the 3C882 ISDN Modem for a PC 3-13 To change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with Telephone Number 1 by checking the appropriate Phone Port box. 2 If your ISDN line has two telephone numbers, specify which Phone port should handle the calls associated with Telephone Number 2. 3 Click the Update button to download the change to your 3C882 ISDN modem’s S register.
3-14 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS 2 Click the Update button if you made any changes to the 3C882 ISDN modem configuration. 3 Click Exit to leave the utility. This completes the ISDN modem configuration procedure. For Windows 3.x users, go to Chapter 5, “Advanced Configuration,” and review the default settings to ensure that they reflect your preferences. If you prefer not to change the default settings, go on to Chapter 7, “Placing and Receiving Calls”.
Setup Using Windows 95 3-15 Setup Using Windows 95 This section describes how to set up the 3C882 ISDN modem using Windows 95 Plug and Play. These instructions assume that Windows 95, Microsoft Plus!, and the 3C882 ISDN modem software have already been installed. To setup your 3C882 ISDN manually and bypass Windows 95 Plug and Play, refer to the section “Setup for Windows NT 4.0” below. 1 Reboot your PC with the 3C882 ISDN modem powered up and physically connected to your PC.
3-16 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS The Install From Disk dialog box appears, as shown in Figure 3-14. Figure 3-14 Install From Disk Dialog Box 4 Insert the 3ComImpact IQ Windows Installation Diagnostic Utilities diskette into an available floppy drive. 5 Click OK. The Select Device dialog box appears, as shown in Figure 3-15.
Setup Using Windows NT 3.5.1 RAS 3-17 6 Check Show All Devices. 7 Select 3ComImpact IQ for baud rates of up to 115.2Kbps and click Next. The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps. However, some computers require the installation of additional hardware, such as an accelerated serial port card, to take advantage of this higher speed. Additional configuration steps, as well, are required. Refer to “Setup for 230Kbps” for instructions. 8 Click OK.
3-18 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS 2 Copy the 3C882 ISDN modem MODEM.INF file to the same directory as the MODEM.ORG file. 3 From the main menu, select Control Panel, and then select Network. The Network Settings dialog box appears, as shown in Figure 3-16. Figure 3-16 Network Settings Dialog Box 4 From the Installed Network Software list box, select Remote Access Service and then click Configure.
Setup Using Windows NT 3.5.1 RAS 3-19 The Remote Access Setup dialog box appears, as shown in Figure 3-17. Figure 3-17 Remote Access Setup Dialog Box 5 If a modem is already configured, select it, and then click Remove. 6 Click Add. The Add Port dialog box appears. 7 Select a COM port, and then click OK. The Remote Access Setup message box appears. 8 Click Cancel. The Configure Port dialog box appears. 9 Select 3ComImpact IQ for baud rates up to 115.2 Kbps and then specify the port usage. Click OK.
3-20 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS 10 Click Continue. 11 Click OK to exit the Network Settings dialog box. The Network Settings Change alert box appears. 12 Click Restart Now. Once your computer has rebooted, you are ready to use the 3C882 ISDN modem. Refer to Chapter 5, “Advanced Configuration,” to review the default settings and ensure that they reflect your preferences.
Setup for Windows NT 4.0 3-21 Figure 3-18 Install New Modems Dialog Box 4 Check Don’t detect my modem, I will select it from a list and click Next.
3-22 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS The New Modem Manufacture screen will open, as shown in Figure 3-19. Figure 3-19 Modem Manufacturers and Models Dialog Box You will only see a 3Com entry if you have previously installed a 3Com modem. 5 Click Have Disk. 6 Select 3ComImpact IQ for baud rates of up to 115.2K and click Next. The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps.
Configure Dial-Up Networking 3-23 A dialog box indicates successful setup. 9 Click Finish. This completes the setup procedure for Windows NT 4.0. Refer to “Configure Dial-Up Networking” below to setup a remote access configuration, or continue on to Chapter 5, “Advanced Configuration,” to review the default settings and ensure that they reflect your preferences. If you prefer not to change the default settings, then go on to Chapter 7, “Placing and Receiving Calls”.
3-24 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS If you have not already set up the modem for 230K, refer to “Setup for 230Kbps” for assistance. 5 Click Configure. The 3ComImpact IQ Properties window opens. 6 Select the appropriate COM port and maximum speed available for your computer. 7 Click OK. You are returned to the Make New Connection screen. 8 Click Next. Enter the area code, telephone number and (if necessary) the country code of the location you are dialing. 9 Click Next.
Configure Dial-Up Networking ■ Subnet Mask (if required) ■ Primary and Alternate DNS Server address 3-25 To send and receive e-mail through the Internet: ■ E-mail address ■ Mail server address To run the Internet Set-Up Wizard, do the following: The Internet Set-Up Wizard procedure may vary depending on your particular version of Windows 95. 1 Click Start, Programs, Accessories, Internet Tools, and Internet Setup Wizard. 2 Click Next to view the Connection Type dialog box.
3-26 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS The Service Provider dialog box opens. 9 Enter the name of your ISP and click Next. The Phone number dialog box opens. 10 Enter the area code, telephone number and (if necessary) the country code of the location you are dialing. 11 Click Next. The User Name and Password dialog box will open. 12 Enter your user name and password and click Next. 13 Configure as specified by your ISP and click Next.
Configure Dial-Up Networking 3-27 The New Phonebook Entry screen opens, as shown in Figure 3-20. Figure 3-20 New Phonebook Entry Wizard If you have not yet configured a Dial-Up Networking connection, a message will indicate that your phonebook is empty. Click OK to add an entry. 2 Type a name for your connection, and click Next. 3 Select “I’m calling the Internet” and click Next. 4 Enter your ISP’s ISDN access number, and click Next. 5 Click Finish to close the New Phonebook Entry Wizard.
3-28 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS Figure 3-21 Phonebook Entry Screen You now have an opportunity to verify various settings of your Dial-Up Networking connection. 6 Click More, and select “Edit entry and modem properties”. Verify your ISP’s ISDN access number and your modem selection. 7 Click the Server tab. The Server Type screen opens, as shown in Figure 3-22.
Configure Dial-Up Networking 3-29 8 Choose “PPP: Windows NT, Windows 95 Plus, Internet” from the Dial-up server type drop down box. 9 Check TCP/IP if you are dialing into an ISP for Internet access. If you are accessing a remote network, such as a corporate LAN, check with your MIS network administrator for the appropriate Network Protocols. 10 Click the TCP/IP Settings button. In most cases your ISP will provide a dynamic IP address; if so check “Server assigned IP address”.
3-30 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS Setup for 230Kbps The 3C882 ISDN modem allows for transfer rates of up to 230.4 Kbps. Note that some computers require the installation of additional hardware, such as an accelerated serial port card, to take advantage of this higher speed. There are two setup scenarios covered: ■ 230K setup for Windows NT 3.5.1 ■ 230K setup for Windows 95 and Windows NT 4.0 Setting up 230K for Windows NT 3.5.
Setup for 230Kbps 3-31 4 From the Main menu, select Control Panel, then select Network. The Network Settings dialog box appears. 5 Click Configure. The Remote Access Setup dialog box appears. 6 Click Configure. 7 Select 3ComImpact IQ 230K. 8 Click OK. 9 Change the setting of your application program to 230400 bps. This completes the procedure to change the baud rate to 230.4 Kbps for Windows NT 3.5.1.
3-32 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS 3C882 ISDN modem. This will set the baud rate to 230.4 Kbps. Once the baud rate is set to a fixed amount you will no longer be able to access the Configuration dialog box to make changes. Refer to “Restoring the 3C882 ISDN Modem to Autobaud” on page 8-9 for assistance. 3 Save this setting by entering AT&W and press return. Next you must install the 230K driver to take advantage of the higher baud rate.
Setup for 230Kbps 3-33 This completes the procedure to change the baud rate to 230.4 Kbps for Windows 95 and Windows NT 4.0. Refer to Chapter 5, “Advanced Configuration,” to review the default settings and ensure that they reflect your preferences. If you prefer not to change the default settings, then go on to Chapter 7, “Placing and Receiving Calls”.
3-34 CHAPTER 3: CONFIGURATION FOR AN IBM-COMPATIBLE PC RUNNING WINDOWS
CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER 4 This chapter describes the configuration for the 3C882 ISDN modem for use with an Apple Macintosh computer. Main topics covered are: ■ Configuring the 3C882 ISDN modem ■ Configuring Internet access for a Macintosh computer You will need the ISDN telephone numbers from the ISDN Information Sheet you completed in Chapter 1. Configuring the 3C882 ISDN Modem for a Macintosh Computer The main steps are shown in Figure 4-1.
4-2 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Installing the 3C882 Software To install the 3C882 ISDN modem software in an Apple Macintosh computer: 1 Insert the 3ComImpact IQ Installer Diagnostic Utilities software utility diskette into the floppy drive and then double-click the 3ComImpact IQ Installer icon. A message box appears as shown in Figure 4-2. Figure 4-2 Installation Message Box 2 Click Continue. The Readme file opens. You can choose to review the document or print the file.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-3 Figure 4-3 Successful Installation Message Box 6 Click OK. This completes the software installation. Running the SPID Wizard The SPID Wizard automatically detects your telephone company’s switch type and configures the SPID(s). The SPID Wizard automatically runs when you are configuring the 3C882 ISDN modem for the first time, if you connect the 3C882 ISDN modem to a different ISDN line, or if any of your ISDN line parameters have changed (e.
4-4 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER The Select Modem Port screen appears, as shown in Figure 4-5. Figure 4-5 Select Modem Port Screen 2 Select the port to which the 3C882 ISDN modem is connected and then click OK. The SPID Wizard start screen appears, as shown in Figure 4-6. Figure 4-6 SPID Wizard Start Screen If you do not want to run the SPID Wizard, click Cancel to configure your values manually via the configuration dialog box (see Figure 4-9).
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-5 the SPID Wizard is the recommended method for configuring your SPID values. 3 Click Next. The SPID Wizard first checks for ISDN layer 1status, and then configures the switch type. After the switch type is configured, the First Telephone Number dialog box appears, as shown in Figure 4-7. Figure 4-7 First Telephone Number Screen for Macintosh 4 Enter the first telephone number for your ISDN line and then click Next.
4-6 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER After the SPID Wizard configures the SPID for the first telephone number, Figure 4-8 appears. Figure 4-8 Second Telephone Screen for Macintosh 5 If you have a second telephone number for your ISDN line, enter it and click Next. If not, leave the field incomplete, and then click Done If you entered a second telephone number for your ISDN line, the SPID for the second telephone number is configured.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-7 After your information has been sent, the Configuration dialog box appears, as shown in Figure 4-9. Figure 4-9 Configuration Dialog Box for Macintosh The Configuration dialog box buttons do the following. Update Configuration. Click Update Configuration to download parameter changes to your ISDN modem’s S registers. Update Firmware. Refer to the readme file for firmware download instructions. Diagnostics.
4-8 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER are dialing must also support Multilink PPP, or you will get a single B channel connection instead of the dual-channel link. By default, Multilink PPP is enabled. To enable or disable Multilink PPP, do the following: 1 Click the Multilink check box in the PPP area to clear it (disable) or check it (enable). 2 Click the Update Configuration button to download the change to your 3C882 ISDN modem’s S register.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-9 Configuring Voice Call Routing The 3C882 ISDN modem allows you to assign a specific telephone number to a specified analog phone port. By default, telephone number 1 is assigned to phone port one, and telephone number 2 is assigned to phone port two, as shown in Figure 4-10. This is especially helpful should you have both a telephone and a fax machine connected to your 3C882 ISDN modem’s analog ports.
4-10 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Figure 4-11. Calls to that telephone number will ring both devices, allowing you to answer a call using either device. NU ISD 232 RS- 2 1 ET RES C 9 VD X MA • 5A 908 555 1212 908 555 1212 Figure 4-11 Configuration for One Telephone Number and Two Devices Note that while you are using the fax machine, for example, you cannot use the telephone to place or receive calls because your ISDN line has only one telephone number.
Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-11 Figure 4-12 Configuration to ring both ports simultaneously To change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with Telephone Number 1. 2 If your ISDN line has two telephone numbers, specify which Phone port should handle the calls associated with Telephone Number 2. 3 Click the Update Configuration button to download the change to your 3C882 ISDN modem’s S register.
4-12 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER ■ TEI 1: Number from 64 to 126 ■ SPID 2: Init (if required) ■ TEI 2: Number from 64 to 126 (if required) Before closing the Configuration dialog box, do the following. 1 Confirm that the Configuration dialog box parameters are correct. 2 Click the Update Configuration button if you made any changes to the 3C882 ISDN modem configuration. 3 Click Quit to exit the Configuration dialog box. This completes the 3C882 ISDN modem configuration.
Configuring Internet Access for a Macintosh Computer 4-13 1 Activate the PPP control panel by choosing the Apple menu, Control Panels and then PPP. The PPP control panel opens as shown in . Figure 4-13 PPP Control Panel 2 Configure the PPP control panel as specified by your ISP. 3 Open the Modem control panel by choosing the PPP pull down menu and selecting Modem. The Modem control panel opens as shown in Figure 4-14.
4-14 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Figure 4-14 OT/PPP Modem Control Panel 4 Choose the port to which your modem is attached from the Connect via pop up menu. Then select the appropriate modem script file from the Modem menu that best matches your dial up criteria. For example, if your ISP accepts connections at 64Kbps, and your computer’s COM port can handle speeds up to 115K, then you would choose the 3ComImpact™ IQ-64k-115K modem script. NOTE: Users of Apple’s System 7.
Configuring Internet Access for a Macintosh Computer 4-15 6 Open the TCP/IP control panel by choosing TCP/IP from the PPP pull down menu. The TCP/IP control panel opens as shown in Figure 4-15. Figure 4-15 TCP/IP Control Panel 7 Choose PPP from the Connect via pop up menu, and Using PPP Server from the Configure menu (or Manually if specified by your ISP). 8 Enter the Name server address(es) as directed by your ISP, and the appropriate Search domain(s) if required. Then choose File and Close.
4-16 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Set Up Using FreePPP with Open Transport FreePPP is a freeware application for accessing the Internet available for use with Apple’s Open Transport networking software (version 1.1 or higher) or MacTCP, Apple’s older networking software. These instructions cover Open Transport configuration only, and assume that the pertinent software has already been installed on your system. These instructions are for FreePPP 2.5v2.
Configuring Internet Access for a Macintosh Computer 4-17 The Account screen will open as shown in Figure 4-17. Figure 4-17 FreePPP Account Screen 3 Configure the fields as specified by your Internet service provider. Generally you would enter the name of your ISP as the Server Name. However you may wish to specify a more unique description to distinguish this particular dial up profile.
4-18 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Figure 4-18 FreePPP Connection Screen 5 Choose the maximum COM port rate available for your computer, and then select CTS & RTS (DTR) from the pop up menu, as shown in Figure 4-18. Click OK to return to the FreePPP setup screen. 6 Click the General tab to return to the FreePPP Setup screen. Then click Modem Setup to reveal the FreePPP Modem Setup screen as shown in Figure 4-19.
Configuring Internet Access for a Macintosh Computer 4-19 7 Choose the port to which your 3ComImpact IQ ISDN modem is attached. Under Modem Init String Settings, click Use: and add at&d0. Click OK to return to the FreePPP Setup screen. NOTE: You may want to set up unique modem configurations for each dial up Account profile (i.e., one Multilink PPP dial up account and one 64K Single link dial up). In this case, you would need to set specific modem init strings for each Account.
4-20 CHAPTER 4: CONFIGURATION FOR AN APPLE MACINTOSH COMPUTER Figure 4-20 FreePPP TCP/IP Control Panel 9 Choose FreePPP from the Connect via pop up menu. 10 Choose Using PPP Server from the Configure menu (or Manually if specified by your ISP). Enter the Name Server Address(es) as directed by your ISP, and the appropriate Search Domain(s) if required. Then choose File and Close. When asked to save changes do so by choosing Save.
5 ADVANCED CONFIGURATION This chapter presents information to guide you through advanced configuration options available for the 3C882 ISDN modem. Advanced Configuration Parameter Default Values To change advanced configuration parameter values, you will need terminal emulation software which will allow you to use AT commands. The Windows 95 and Windows NT operating systems provide HyperTerminal terminal emulation software.
5-2 CHAPTER 5: ADVANCED CONFIGURATION QuickSelect The QuickSelect feature (S71=0, by default) automatically detects and implements the protocol required for each digital call, either V.120 or Async-Sync PPP. Typically, V.120 is used for communication between two computers, whereas PPP is used for communication between a computer and an Internet service provider.
Advanced Configuration Parameter Default Values 5-3 the incoming call is dropped. The calling party will still hear ringing, and must retry their call. If you have a Multilink PPP call active and you receive an incoming voice call, one of the two B channels will not be assigned to the voice call until you answer the voice call. The LED remains green until the call is answered.
5-4 CHAPTER 5: ADVANCED CONFIGURATION Autobaud enabled unless you want to set the baud rate to 230.4 Kbps. The command AT $B (baud rate) is used to set a specific baud rate, such as 230.4 Kbps. Refer to Appendix B for a list of acceptable values. To access the 3C882 Configuration dialog box, Autobaud must be enabled. If the baud rate is set to a specific rate, you will not be able to access the Configuration dialog box. Refer to Chapter 8, “Restoring the 3C882 ISDN Modem to Autobaud.” for assistance.
Changing the Parameter Settings 5-5 question mark (?) after the particular value. For example, to read the status of S register 63, you would type AT S63? and then press [Enter] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen followed by a result code. Refer to Appendix B for a complete list of result codes. 5 To change another parameter setting, repeat steps 1 through 4. Otherwise, go on to Chapter 7, “Placing and Receiving Calls.
5-6 CHAPTER 5: ADVANCED CONFIGURATION
6 SUPPLEMENTARY VOICE FEATURES Supplementary Voice Features This chapter provides an overview of the supplementary voice features which are available for the 3C882 ISDN Modem. These voice features are as follows: ■ Call Forwarding ■ ISDN Call Waiting ■ Call Conference (3 Way Calling) ■ Call Transfer To use Call Conference, as well as Call Transfer, your ISDN line must support Flexible Calling. To use ISDN Call Waiting, your ISDN line must support Additional Call Offering (ACO).
6-2 CHAPTER 6: SUPPLEMENTARY VOICE FEATURES telephone company should provide the appropriate commands. The 3C882 ISDN modem will announce a forwarded call by producing a short ring on the telephone that is routed to the forwarded number. ISDN Call Waiting ISDN Call Waiting allows you to place a voice call on hold while you answer an incoming voice call. By default, ISDN Call Waiting is disabled on analog port 2 (S76=1).
Supplementary Voice Features 6-3 The analog method for disabling Call Waiting, typically *70, is not available for ISDN. Instead, you must set the appropriate S Register (S76) to activate or deactivate the Call Waiting feature. Refer to Appendix B, “AT Commands, S Registers, and Result Codes” for the appropriate values. Troubleshooting What if the call is busy? The 3C882 ISDN modem supports two simultaneous voice calls per voice port. If you already have two calls up (e.g.
6-4 CHAPTER 6: SUPPLEMENTARY VOICE FEATURES Table 6-2 How to Use Call Conference How Do I Do This Abort the second dial and switch If the dialed party is busy, press and release the switch back to the first call? hook button to cancel the call and reconnect you to the first call. If you dialed a wrong number, or the far end does not answer, hang up the phone to abort the attempted call. The phone will then ring, indicating that the first call is on hold.
Supplementary Voice Features 6-5 Table 6-3 How to Use Call Transfer How Do I Do This Cancel the second call and switch back to the first call? If the dialed party is busy, press and release the switch hook button to cancel the attempted call and reconnect you to the first call. If you should hang up, the phone will ring back, indicating that you have a call on hold. If you dialed a wrong number, or the far end does not answer, hang up the phone to abort the attempted call.
6-6 CHAPTER 6: SUPPLEMENTARY VOICE FEATURES This completes the procedure for Pacific Bell ISDN users. Refer to Chapter 5, “Changing the Parameter Settings” or Appendix B, “AT Commands, S Registers, and Result Codes” for further assistance.
7 PLACING AND RECEIVING CALLS This chapter illustrates how to place and receive a variety of calls with your 3C882 ISDN modem. The 3C882 ISDN modem uses AT commands and S registers for call management.
7-2 CHAPTER 7: PLACING AND RECEIVING CALLS Placing Calls Automatically If you are using standard communications software, select the 3ComImpact IQ ISDN modem. If the 3ComImpact IQ ISDN modem is not listed, select a Hayes®-compatible modem configuration and dial out through the 3C882 ISDN modem. If you are using a Hayes-compatible modem configuration, you may have to manually configure settings such as baud rate. Refer to your communications software documentation for more details.
Placing ISDN Data Calls 7-3 circuit-switched ISDN modem commands with dial strings are: AT D 1 408 654 2703 ATD14086542703 For a summary of the AT command set, see Appendix B. 4 Press [Enter] or [Return]. After completing its tasks, the 3C882 ISDN modem sends a message to the screen. An AT command line starts with the characters AT.
7-4 CHAPTER 7: PLACING AND RECEIVING CALLS ATD An example is as follows: ATD 1 908 555 1212 Some Internet service providers may require you to dial two telephone numbers to place a Multilink PPP call. In this case, the ampersand (&) character is used to dial two telephone numbers.
Receiving ISDN Data Calls 7-5 either via the Configuration dialog box or setting S register 61=0. By setting S register 61=1, all outgoing calls will be TollMizer calls. Alternatively, you can place TollMizer calls on a call by call basis using the command ATDD . To manually dial a TollMizer call on a call-by-call basis, type the following: ATDD An example is as follows: ATDD 1 908 555 1212 Note that the TollMizer feature is available for Multilink PPP calls as well.
7-6 CHAPTER 7: PLACING AND RECEIVING CALLS If Auto Answer is enabled, the call is automatically answered and a CONNECT message, indicating the speed of the connection, is delivered to the RS-232 port. When the 3C882 ISDN modem receives a voice call, the B channel LED(s) flash green and then remain lit once the call is answered. (If you are running Multilink PPP, both B channels flash and then remain lit.) A flashing LED(s) indicate that the receiving end has not yet answered the call.
ISDN Call Logging 7-7 Troubleshooting If both ports are busy, and Call Waiting has been disabled (i.e., S76), the third incoming call generates a busy signal to the far end. If Call Waiting is enabled, and your telephone company has provisioned this feature on your ISDN line, you will hear the Call Waiting indicator (a click), alerting you to an incoming call. Refer to Chapter 6, “Supplementary Voice Features” for further ISDN Call Waiting assistance.
7-8 CHAPTER 7: PLACING AND RECEIVING CALLS This information is cleared upon restarting or power cycling the unit. To clear the Call Logging information manually, use terminal emulation software to enter the command AT\N0. Troubleshooting What if no information is displayed? If you enter AT\N but the Call Logging information is not displayed, you may not have Caller ID provisioned on your ISDN line.
8 TROUBLESHOOTING This chapter explains how to isolate and solve problems encountered with the 3C882 ISDN modem. Problems may stem from incorrect option settings or improper installation. Your ISDN line provisioning may also affect your 3C882 ISDN modem’s performance. Refer to Chapter A, “Ordering ISDN Service” for assistance.
8-2 CHAPTER 8: TROUBLESHOOTING Checking the Basics Before you monitor the LEDs or refer to the section on symptoms and solutions, check the following: ■ Verify that the cables are not physically damaged. If damage is apparent, replace the cable. ■ Verify that the power cord is connected to an electrical outlet and the 3C882 ISDN modem. ■ Verify that the ISDN cable is properly connected to the 3C882 ISDN modem and the ISDN wall jack.
Monitoring LEDs 8-3 Monitoring the D Channel LED Observe the D channel LED. If you are connected to a live digital ISDN line, the D channel LED remains lit for a few minutes after the self-test and then begins to flash. When the D channel LED flashes, it indicates that the ISDN signal is present and it is attempting to synchronize with the telephone company. When the D channel LED goes out, it indicates that a valid communication channel has been established and you can place calls.
8-4 CHAPTER 8: TROUBLESHOOTING communicate at incompatible baud rates. Refer to “Evaluating Symptoms and Solutions” below. Monitoring the DTR LED When illuminated, the Data Terminal Ready LED indicates that communication between the 3C882 ISDN modem and your computer has been established. If the DTR LED does not illuminate, refer to “Evaluating Symptoms and Solutions” below. Evaluating Symptoms and Solutions Table 8-1 lists symptoms of common problems, possible causes, and possible solutions.
Evaluating Symptoms and Solutions 8-5 Table 8-1 Symptoms, Causes, and Solutions Symptom Possible Cause Calls cannot be If you cannot place a call, placed from analog there may be a problem with equipment the configuration of your ISDN line. Solution Call the telephone company to verify that your line is configured for circuit-switched voice and data service. Calls from an analog port may From the Configuration dialog box, be blocked.
8-6 CHAPTER 8: TROUBLESHOOTING Table 8-1 Symptoms, Causes, and Solutions Symptom Possible Cause Solution A connection has There is an interoperability been established mismatch between the local (B-1 or B-2 green and remote applications. LED remains lit and you receive a CONNECT message) but data cannot be sent Make sure that the local and remote data applications have communications capability and are properly configured.
8-7 Table 8-1 Symptoms, Causes, and Solutions Symptom Possible Cause Solution ISDN Call Waiting does not work. ISDN Call Waiting is disabled. ISDN Call waiting is disabled on Port 2 by default (S76=1). Use terminal emulation software to change S76 to the appropriate value. Refer to Chapter B, “AT Commands, S Registers, and Result Codes” for the available options.
8-8 CHAPTER 8: TROUBLESHOOTING Microkey Error Codes Table 8-2 lists Microkey error codes, possible causes, and possible solutions regarding installation of the Microkey Com Port Accelerator card for Windows 3.x. Table 8-2 Microkey Error Codes and Their Meaning Error Code Possible Cause Solution 1001 Cannot find or copy the file s7comm.drv. Check the 3COM directory and reinstall the 3C882 ISDN modem software. 1002 Cannot find or copy the file s7vcd.drv.
Restoring the 3C882 ISDN Modem to Autobaud 8-9 Table 8-2 Microkey Error Codes and Their Meaning Error Code Possible Cause Solution 1022 Cannot remove TURBOBUF from the SYSTEM.INI file. Try to remove these items manually and/or contact 3Com Technical Support. Restoring the 3C882 ISDN Modem to Autobaud The 3C882 ISDN modem autobauds up to 115 Kbps (by default) to match your computer’s COM port speed.
8-10 CHAPTER 8: TROUBLESHOOTING Using On-Line Help The following on-line help is available: ■ For comprehensive information about the 3C882 ISDN modem, click the 3ComImpact IQ Help icon in the 3ComImpact IQ program group. ■ From the 3C882 Configuration dialog box for Windows, click the Help button for information about the Configuration dialog box. ■ For the Macintosh, on-line help may be accessed by clicking the question mark icon in the main menu bar and then selecting the 3ComImpact IQ Help.
A ORDERING ISDN SERVICE This appendix describes how to order ISDN service. If you are ordering ISDN for the first time, you may either have 3Com order ISDN service for you, free of charge, or you may choose to call your telephone company and order ISDN yourself. ISDN line provisioning information is subject to change. Visit 3Com’s World Wide Web site (http://www.3com.com) for the latest information. Placing the ISDN Order Through 3Com Simply call 1-800-572-3Com to have your ISDN line ordered for you.
A-2 APPENDIX A: ORDERING ISDN SERVICE To order the ISDN service from the telephone company for the 3C882 ISDN modem: 1 Call the telephone company and ask for the ISDN representative. 2 Tell the representative that you would like to place an order for ISDN service for a 3ComImpact IQ External ISDN modem. 3 Request that your line be provisioned according to Bellcore capability package S1, the recommended ISDN Ordering Code for use with your 3C882 ISDN modem.
What Do I Need To Support Supplementary Voice Features? A-3 Some telephone companies may choose to refer to the Flexible Calling features by unique terminology. Refer to “What Do I Need To Support Supplementary Voice Features?” on page A-3 for more information; additionally, Chapter 6, “Supplementary Voice Features” provides a thorough explanation of each voice feature. 5 Ask the representative which ISDN switch type your ISDN line will be using.
A-4 APPENDIX A: ORDERING ISDN SERVICE Some telephone companies may choose to refer to the Flexible Calling features by unique terminology. Table A-1 Supporting Supplementary Voice Features To Use This 3ComImpact IQ Voice Feature ISDN Call Waiting Allows you to place a voice call on hold while you answer a second incoming call.
ISDN Line Parameter Tables A-5 AT&T 5ESS Switch NI1 To order ISDN service for the AT&T® 5ESS switch, supply the telephone company with the information provided in Table A-2.
A-6 APPENDIX A: ORDERING ISDN SERVICE AT&T 5ESS Custom Switch To order ISDN service for the AT&T 5ESS Custom switch, photocopy and fax Table A-3 to the telephone company.
ISDN Line Parameter Tables A-7 NorthernTelecomDMS 100 Switch To order ISDN service for the Northern Telecom® DMS 100 switch, photocopy and fax Table A-4 to the telephone company. Some telephone companies will only provision one analog voice port on a DMS 100 switch. Check with your telephone company for additional line provisioning information.
A-8 APPENDIX A: ORDERING ISDN SERVICE **Caller ID is necessary.to employ the Call Logging feature. If you would like to have Call Logging, you must order Caller ID. However, Caller ID itself, which requires an external device to monitor incoming calls, is not supported. ††Call Forwarding allows you to forward calls to another telephone number. Siemens EWSD Switch To order ISDN service for the Siemens® EWSD switch, supply photocopy and fax Table A-5 to the telephone company.
B AT COMMANDS, S REGISTERS, AND RESULT CODES The 3C882 ISDN modem AT commands are summarized in Table B-1, S registers in Table B-2, and result codes in Table B-3. AT Command Set Table B-1 summarizes the AT command set for the 3C882 ISDN modem. Table B-1 AT Command Set Summary Command Function (Example) Description A Answers an incoming circuit-switched ISDN modem call (AT A) Answers an incoming data call. $B* Set baud rate (AT $B57600) 0 — Autobaud (default).
B-2 APPENDIX B: AT COMMANDS, S REGISTERS, AND RESULT CODES Table B-1 AT Command Set Summary (continued) Command Function (Example) Description DD (ATDD5551234) Dials an outgoing TollMizer connection. &D DTR control (AT &D0) &D0 causes ISDN modem to ignore DTR from host. &D1 causes ISDN modem to enter command state on detecting on-off transition of DTR. &D2 causes ISDN modem to hang up current calls upon on-off transition of DTR and prepares serial port to accept AT command at any speed (default).
AT Command Set B-3 Table B-1 AT Command Set Summary (continued) Command Function (Example) Description Sn= Write configuration register (AT S60=64) Writes to a specific S register. \S Read on-line status: command settings (AT \S) Reads the status of any parameters that have been modified through AT commands and provides call status information. \T Link inactivity timer (AT \T1) \T0 disables inactivity timer (default). \Tn link inactivity timer in minutes.
B-4 APPENDIX B: AT COMMANDS, S REGISTERS, AND RESULT CODES S Registers Table B-2 provides a complete list and descriptions of the S registers supported by the 3C882 ISDN modem. All S registers except S0 are the 3Com extended registers. S registers notated with an asterisk are stored in nonvolatile memory and will not be cleared or returned to the default value if the ISDN modem is powered down.
S Registers B-5 Table B-2 S Registers (continued) Registers Descriptions S58 Terminal Initialization State: Indicates the status of the second TEI using SPID 2. This information is provided only if your carrier requires a second directory number. This field is read-only. 0 — ISDN modem has not attempted initialization 1 — ISDN modem has initialized successfully using SPID 2 2 — ISDN modem has failed initialization using SPID 2 S59 U Interface Status: This field is read-only.
B-6 APPENDIX B: AT COMMANDS, S REGISTERS, AND RESULT CODES Table B-2 S Registers (continued) Registers Descriptions S63* Voice Call Routing 0 — Calls to either analog port are blocked 1 — Phone #1 to Phone port 1 only; Phone #2 calls blocked 2 — Phone #1 to Phone port 2 only; Phone #2 calls blocked 3 — Phone #1 to Phone port 1 or 2; Phone #2 calls blocked 4 — Phone #1 calls blocked; Phone #2 to Phone port 1 only 5 — Phone #1 to Phone port 1 only; Phone #2 to Phone port 1 only 6 — Phone #1 to Phone port
S Registers B-7 Table B-2 S Registers (continued) Registers Descriptions S70* Dynamic Bandwidth Allocation (DBA): 0 — DBA disabled 1 — DBA enabled for outgoing calls only 2 — DBA enabled for incoming calls only 3 — Enabled for both incoming and outgoing calls (default) S71 B Channel Protocol: 0 — QuickSelect (default) 1 — Async-Sync PPP conversion 2 — V.120 S73 V.120 Frame Type: 0 — I frame (default) 1 — UI frame S74 V.
B-8 APPENDIX B: AT COMMANDS, S REGISTERS, AND RESULT CODES Table B-2 S Registers (continued) Registers Descriptions S79 Call Drop: 0 — Disabled 62 — (default) S80* Multilink PPP: 0 — Disabled 1 — Enabled (default) S82* Multilink PPP Endpoint Discriminator Class: The 3C882 ISDN modem automatically sets the Endpoint Discriminator Class to 5. 1 — Locally Assigned Address 2 — Internet Protocol (IP) Address 3 — IEEE 802.
Result Codes B-9 Result Codes Table B-3 lists the 3C882 ISDN modem result codes. Table B-3 3C882 ISDN Modem Result Codes Short Form Long Form Meaning 0 OK Indicates that the most recent command or action was successfully completed. 2 RING Indicates that an incoming call is present and no AT Answer command is outstanding. 3 NO CARRIER Indicates that the most recent call attempts did not establish a call or that the physical ISDN interface is not operational.
B-10 APPENDIX B: AT COMMANDS, S REGISTERS, AND RESULT CODES
C SPECIFICATIONS This appendix describes the physical specifications of the 3C882 ISDN modem and provides the pin assignments of the RS-232 COM port, PC serial cable, and Macintosh serial cable. 3C882 ISDN Modem Specifications Network Interface Integrated Services Digital Network (ISDN) Basic Rate telephone service provided by the telephone company Physical Interface U (integrated NT1) Physical Dimensions Length 8.66 in. (22.0 cm.) Width 5.44 in. (13.8 cm.) Height 1.56 in. (4.0 cm.
C-2 APPENDIX C: SPECIFICATIONS RS-232 COM Port Pin Specifications The asynchronous RS-232-D COM port on the 3C882 ISDN modem, labeled RS-232, is a standard DB-25 female connector. The 3C882 ISDN modem asynchronous port pin assignments, shown in Table C-1, conform to standard definitions for data communications equipment (DCE).
PC Serial Cable Pin Specifications C-3 PC Serial Cable Pin Specifications The DB-25 male to DB-9 female pin assignments for the PC serial cable are provided in Table C-2.
C-4 APPENDIX C: SPECIFICATIONS
D CONFIGURATION USING DOS Configuration Using DOS To configure the 3C882 ISDN modem for an IBM PC or compatible computer using DOS, follow these steps. You will need the ISDN Information Sheet you completed in Chapter 1. 1 Create a directory on the hard drive, and then insert the 3ComImpact DOS Installation Diagnostic Utilities diskette into the floppy drive of the PC. Create a new DOS directory.
D-2 APPENDIX D: CONFIGURATION USING DOS The configuration program launches and then the Port Settings screen appears. To move the cursor around the screen, use the [Up Arrow] and [Down Arrow] keys. To select a parameter, use the [Space Bar]. 4 Use the [Space Bar] to select the 3C882 ISDN modem’s COM port. When you select the port, a default standard interrupt (IRQ) associated with that port is automatically chosen. 5 Press [F10] to connect to the 3C882 ISDN modem via the chosen COM port.
Configuration Using DOS D-3 11 Specify which Phone port should handle the calls associated with telephone number one. If you plan to use the 3C882 ISDN modem’s analog Phone ports, you will want to configure voice call routing by assigning telephone numbers to the analog ports. By default, telephone number 1 is assigned to phone port one and telephone number 2 is assigned to phone port 2.
D-4 APPENDIX D: CONFIGURATION USING DOS
GLOSSARY Async-Sync PPP Conversion Asynchronous to synchronous PPP conversion. The 3C882 ISDN modem converts asynchronous PPP into synchronous (HDLC-based) PPP that can be transported in ISDN B channels to communications servers that have integrated ISDN BRI, PRI, or T1 access lines. AT commands ATtention Codes. AT commands are used to configure and operate the 3C882 ISDN modem. These commands can be sent either automatically or manually through your communications software.
2 GLOSSARY CHAP Challenge Handshake Authentication Protocol. CHAP is one of two PPP authentication protocols; PAP is the other. An authentication protocol requests information to verify a valid user. CHAP is a stronger authentication method because it uses encryption and may repeatedly request verification of the identity of the user any time after link establishment. COM port The communications port (also referred to as a serial port).
GLOSSARY 3 Firmware Firmware is the code that resides in the 3C882 ISDN modem and controls its behavior. It differs from software in the form of programs that run on your computer. ISDN Integrated Services Digital Network. ISDN provides a digital telephone service which allows both data and voice communication over the same telephone line and at significantly faster speeds than the traditional POTs service. Two types of lines provide access to ISDN: BRI and PRI.
4 GLOSSARY National ISDN An ISDN standard that enables consistency in ISDN service features across different vendors’ equipment and switches for North America. Network terminator (NT1) A device that terminates the ISDN line. The NT1 is built into the 3C882 ISDN modem. PAP Password Authentication Protocol. PAP is one of two PPP authentication protocols; CHAP is the other. An authentication protocol requests information to verify a valid user. PAP requests the user’s name and password for verification.
GLOSSARY 5 TollMizer Allows you to place a data call over a voice channel, saving the extra cost of the data channel. Your telephone company, ISP, and the device into which you are calling must all support this feature. V.120 A rate adaption scheme that converts transmission rates from a range of 300 bps to 115.2 Kbps to the B channel 56 Kbps or 64 Kbps rate. V.120 is used for communication between two computers.
6 GLOSSARY
Numerics 3C882 specifications C-1 A advanced configuration parameters 5-1 analog equipment installation 2-5 analog port placing calls 7-6 receiving calls 7-6 Apple Macintosh requirements 1-6 Async-Sync PPP 1-3 AT commands list B-1 placing an ISDN data call 7-2 setting 5-4 AT&T 5ESS Custom switch A-6 AT&T 5ESS NI1 switch A-5 Auto Answer 5-3 Autobaud 5-3 B B channel data rate 3-10, 4-8, B-5 B channel LEDs 8-5 B1 channel LED 2-3 B2 channel LED 2-3 monitoring 8-3 back panel components 2-2 Baud Rate 5-3 config
analog ports for PC using DOS D-3 analog ports for PC using Windows 3-13 Call Transfer 6-4 Call Waiting Troubleshooting 8-7 Caller ID. See ISDN Call Logging Challenge Handshake Authentication Protocol (CHAP) 1-4 changing parameter settings 5-4 COM port connection 2-4 pinout specifications C-2 compression 5-3 configuration advanced 5-1 Apple Macintosh FreePPP 4-16 OT/PPP 4-12 changing 5-4 for an Apple Macintosh computer 4-2 using DOS D-1 using Windows 3-1 using Windows 95 3-15 using Windows NT 3.5.
receiving 7-5 Data Over Voice. See TollMizer Data Terminal Ready LED 2-3 Dial-Up Networking Windows 95 3-23 Windows NT 4.
Windows NT 4.
O ordering ISDN service for AT&T 5ESS Custom A-6 for AT&T 5ESS NI1 A-5 for Northern Telecom DMS 100 A-7 for Siemens EWSD A-8 P package contents 1-4 parameter settings changing 5-4 Password Authentication Protocol (PAP) 1-4 PC requirements 1-6 Phone port 2-5, 3-10, 4-9 physical dimensions C-1 placing calls 7-1 data 7-1 using AT commands 7-2 using TollMizer 7-4 voice 7-6 Plug and Play setup with Windows 95 3-15 power cable connection 2-7 Power LED 2-2 power requirements C-1 PPP protocol 1-2 Q QuickSelect 1-
S S registers B-4 Self-Test/Status LED 2-2 Send Data (SD) LED monitoring 8-3 Send Data LED 2-3 serial cable installation 2-3 serial port 1-3 connection for Macintosh 2-4 connection for PC 2-4 Siemens EWSD switch A-8 specifications C-1 SPID Wizard 4-3 Switch 56 Permissive. See TollMizer switch type A-5 to A-8 T Test LED 8-2, 8-4 TollMizer 7-4 placing a call 7-4 troubleshooting 8-1 checking the basics 8-2 evaluating symptoms and solutions 8-4 Microkey error codes 8-8 monitoring LEDs 8-2 V V.
Windows NT 3.5.1 3-17 Windows NT 4.
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WARRANTIES EXCLUSIVE: IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION.
IMPORTANT: Read Before Using This Product 3COM END USER SOFTWARE LICENSE AGREEMENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE OPENING OR USING THIS PRODUCT. IT CONTAINS SOFTWARE, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION (“3COM”) TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH BELOW. OPENING THIS PACKAGE OR USING ANY PART OF THE SOFTWARE INDICATES THAT YOU ACCEPT THESE TERMS.
For civilian agencies: Restricted Rights Legend: Use, reproduction or disclosure is subject to restrictions set forth in subparagraph (a) through (d) of the Commercial Computer Software - Restricted Rights clause at 48 C.F.R. 52.227-19 and the limitations set forth in 3Com's standard commercial agreement for the Software. Unpublished rights reserved under the copyright laws of the United States.
FCC CLASS B CERTIFICATION STATEMENT 3Com Corporation Model No: 3C882 FCC ID: DF63C882 Made in U.S.A. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 this device may not cause harmful interference, and 2 this device must accept any interference received, including interference that may cause undesired operation.
CANADIAN NOTICE The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operation, and safety requirements. The Department does not guarantee the equipment will operate to the users’ satisfaction. Before installing this equipment, users should ensure that is permissible to be connected to the facilities of the local telecommunications company.
