3Com 3C882 - Manual

F IGURES 1-1 Network Access with the 3C882 ISDN Modem 1-1 1-2 ISDN Information Sheet 1-7 2-1 Installation Steps for the 3C882 ISDN Modem 2-1 2-2 Front Panel LED Indicators 2-2 2-3 Back Panel Connectors 2-2 2-4 Computer to 3C882 ISDN Modem COM Port Connection 2-4 2-5 ISDN Cable Connection 2-5 2-6 Ana...

T ABLES 1 Text Conventions 2 2 Notice Icons 2 2-1 Front Panel LED Indicator Definitions 2-3 5-1 Changing Default Settings 5-5 7-1 Symptoms, Causes, and Solutions 7-3 A-1 ISDN Order Codes A-2 A-2 Line Configuration for AT&T 5ESS NI1 A-3 A-3 Line Configuration for AT&T 5ESS Custom A-4 A-4 Line...

A BOUT T HIS G UIDE 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 lates...

Conventions 2 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:...

1 I NTRODUCTION 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 Amer...

3C882 ISDN Modem Features 1-2 The 3C882 ISDN modem allows transmission of data at speeds of up to 128 Kbps over digital ISDN connections with the highest reliability and error-free performance possible. With Stac  compression and a high-speed serial port, the 3C882 ISDN modem allows you to get tran...

3C882 ISDN Modem Features 1-3 High Performance ■ Stac compression, for data throughput of up to 230.4 Kbps, which conforms to these IETF drafts: The PPP Compression Control Protocol , March 1994, and PPP Stacker LZS Compression Protocol , February 1996 ■ An asynchronous RS-232-D data port for connec...

3C882 ISDN Modem Package Contents 1-5 3C882 ISDN Modem Package Contents The 3C882 ISDN modem package contents contains one each: ■ 3ComImpact IQ External ISDN Modem ■ Power cable with an AC wall transformer ■ RJ -45/RJ -11 ISDN telephone cable ■ 3.5-inch installation diskette for PCs running Windows...

Before You Install the 3C882 ISDN Modem 1-6 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 ■ 640 KB of conventional memory ■ A hard disk drive with 2...

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 ...

Before You Install the 3C882 ISDN Modem 1-8 ISDN Switch Type. Place a check mark next to the ISDN switch your telephone company uses. Each switch type has a corresponding provisioning table in Appendix A. Number of ISDN Telephone Numbers. Your one ISDN telephone line can support two ISDN telephone n...

2 I NSTALLING THE 3C882 ISDN M ODEM This chapter describes how to install 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, refe...

Familiarizing Yourself with the 3C882 ISDN Modem 2-2 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 fr...

Installing a Serial Cable 2-4 Installing a Serial Cable You will need the following type of serial cable. ■ For a Macintosh computer, you will need a 25-pin male to mini DIN 8-pin male serial cable. Refer to the information enclosed in your 3C882 ISDN modem package to order a free cable. If you are ...

Installing the ISDN Cable 2-5 2 Connect the other end of a serial cable to a serial COM port on the back of your computer and tighten the connector screws. On a PC, most COM port connectors are labeled COM, SERIAL, or RS-232-D. On an IBM AT® PC and most laptops or notebooks, connect the cable to a 9...

Installing Analog Equipment 2-6 Installing Analog Equipment You can connect an analog touch-tone telephone, answering machine, fax machine, or external analog modem to the 3C882 ISDN modem. You will need an RJ-11 to RJ-11 cable for each analog phone port connection. To install an analog device: 1 In...

Installing Analog Equipment 2-7 CAUTION: The 3C882 ISDN modem is designed to operate with telephones that are compatible with the original AT&T ® 2500 touch-tone telephone standard. 3Com guarantees proper operation of up to three compatible touch-tone devices per analog phone port. The 3C882 ISD...

Installing the Power Cable 2-8 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. Figure 2-7 Power Cable Connection 2 Plug the transformer end of the power cable i...

3 C ONFIGURATION FOR AN IBM-C OMPATIBLE PC This chapter describes how to configure the 3C882 ISDN modem using the Windows operating system. Additional steps are required for Windows 95 and Windows NT users. The main topics are as follows: ■ Configuring the 3C882 ISDN modem ■ Setup Using Windows 95 ■...

Configuring the 3C882 ISDN Modem for a PC 3-2 Installing the 3C882 Software To install the 3C882 ISDN modem software: 1 Insert the 3ComImpact IQ Windows & DOS Installation Diagnostic Utilities diskette into an available floppy drive. 2 If you are using Windows 95, select Run from the Start menu....

Configuring the 3C882 ISDN Modem for a PC 3-3 Running SPID Wizard The SPID Wizard automatically detects your telephone company’s switch type and configures the SPID(s). You will need the ISDN telephone numbers from the ISDN Information Sheet you completed in Chapter 1. 1 Double-click the 3ComImpact ...

Configuring the 3C882 ISDN Modem for a PC 3-4 The dialog box for the first telephone number appears, as shown in Figure 3-5. Figure 3-5 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 mod...

Configuring the 3C882 ISDN Modem for a PC 3-5 Figure 3-6 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 ...

Configuring the 3C882 ISDN Modem for a PC 3-6 5 Click Finish . The on-line registration dialog box appears. Enter your information and then click Register Now . After your information is received, the Configuration dialog box appears, as shown in Figure 3-8. Figure 3-8 Configuration Dialog Box for P...

Configuring the 3C882 ISDN Modem for a PC 3-7 Tools. Clicking on the Tools button produces buttons for Firmware , Tests , Save and Restore . ■ Firmware. Refer to the readme file for firmware download instructions. ■ Tests. Use the Tests tool only under the direction of technical support personnel. ■...

Configuring the 3C882 ISDN Modem for a PC 3-8 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. A message box appears and asks you to confirm that you want to run SPID Wizard. 2 Click OK . The Second Te...

Configuring the 3C882 ISDN Modem for a PC 3-9 Configuring the B Channel Rate By default, the B Channel Rate is 56 Kbps. Check with your telephone company for the appropriate B Channel Rate. To change the B Channel Rate, do the following: 1 Select the appropriate radio button, 56 Kbps or 64 Kbps. 2 C...

Configuring the 3C882 ISDN Modem for a PC 3-10 One Telephone Number per Analog Device. If you have two telephone numbers and two analog devices, you may want one telephone number associated exclusively with just an analog telephone and the other telephone number associated with just a fax machine. I...

Configuring the 3C882 ISDN Modem for a PC 3-11 Figure 3-11 Configuration for One Telephone Number & Two Devices 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 IS...

Configuring the 3C882 ISDN Modem for a PC 3-12 The TEI number(s) are not configured by the user. The TEI number(s) are transmitted by the telephone company for informational purposes only. Before you close the Configuration dialog box, do the following. 1 Confirm that the Configuration dialog box pa...

Setup Using Windows 95 3-13 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. 1 Reboot your PC with the 3C882 ISDN...

Setup Using Windows 95 3-14 Figure 3-13 Install From Disk Dialog Box 4 Insert the 3ComImpact IQ Windows & DOS Installation Diagnostic Utilities diskette into an available floppy drive. 5 Click OK . The Select Device dialog box appears, as shown in Figure 3-14. Figure 3-14 Select Device Dialog Bo...

Setup Using Windows 95 3-15 6 Select 3ComImpact IQ and then click OK . If you are planning to run your computer at the maximum 230.4 Kbps baud rate, you must set up the driver that allows a maximum 230.4 Kbps baud rate. To do so, go on to step 7. Otherwise, if you plan to run your computer at baud r...

Setup Using Windows NT RAS 3-17 Go 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, go on to Chapter 6, “Placing and Receiving Calls.” Setup Using Windows NT RAS This section descri...

Setup Using Windows NT RAS 3-18 Figure 3-17 Network Settings Dialog Box 4 From the Installed Network Software list box, select Remote Access Service and then click Configure . The Remote Access Setup dialog box appears, as shown in Figure 3-18. Figure 3-18 Remote Access Setup Dialog Box 5 If a modem...

Setup Using Windows NT RAS 3-19 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 or select 3ComImpact IQ 2...

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-2 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 dis...

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-3 4 Click Continue . Figure 4-4 appears. Figure 4-4 Software Installation Location Dialog Box 5 Select the location on your hard drive where you would like the 3ComImpact IQ folder. If you do not want to use the default folder name, change ...

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-5 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 4-8. Figure 4-8 SPID Wizard Start Screen If you do not want to run the SPID Wizard, click Cancel. Th...

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-9 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 instru...

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-13 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 to update this information to the 3C882 ISDN modem. 3 Click Quit t...

5 A DVANCED C ONFIGURATION Advanced Configuration Parameter Default Values To change advanced configuration parameter values, you will need terminal emulation software to allow you to useAT commands. For Windows 95 and Windows NT users, HyperTerminal terminal emulation software is provided with thos...

Advanced Configuration Parameter Default Values 5-2 QuickSelect The QuickSelect feature automatically detects and uses the protocol required for each digital call, either V.120 or Async-Sync PPP. Typically, V.120 is used for communication between two computers, while PPP is used for communication be...

Advanced Configuration Parameter Default Values 5-3 Auto Answer When Auto Answer is disabled (the default), a RING message is delivered to the RS-232 port upon reception of an incoming data call to the 3C882 ISDN modem. Enter the command AT A to answer the incoming data call. A CONNECT message is th...

Changing The Parameter Settings 5-4 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. Before setting a specific baud rate, ensure that the Configuration dialog box parameter...

Changing The Parameter Settings 5-5 3 Type: AT <command> 4 Press Enter or Return. Refer to Table 5-1 for the appropriate command. For example, to disable compression, type AT%C0, and then press [Enter] or [Return]. An AT command line starts with the characters AT. The command line accepts up t...

6 P LACING AND R ECEIVING C ALLS 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. This chapter covers the following: ■ Placing ISDN data calls ■ Placing a Multilink PPP call ■ P...

Placing ISDN Data Calls 6-2 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 ...

Placing ISDN Data Calls 6-3 3 Type: AT D <telephone number> The 3C882 ISDN modem recognizes the AT command ATD to dial a digital ISDN data call. Correct examples of outgoing circuit-switched ISDN modem commands with dial strings are: AT D 1 408 654 2703 ATD14086542703 For a summary of the AT c...

Placing a 56K TollSaver Call 6-4 For automatic placement of a Multilink PPP call, simply launch the call. For manual dialing, type the following: ATD <telephone number> An example is as follows: ATD 1 908 555 1212 Some Internet service providers require you to dial two telephone numbers to pla...

Receiving ISDN Data Calls 6-5 To manually dial a 56K TollSaver call on a call by call basis, type the following: ATDD <telephone number> An example is as follows: ATDD 1 908 555 1212 By setting S Register 61=1, all outgoing calls will be 56K TollSaver calls. Receiving ISDN Data Calls The 3C882...

Placing Voice Calls Using an Analog Phone Port 6-6 Placing Voice Calls Using an Analog Phone Port To place an outgoing call, simply take the telephone handset or external fax machine off the hook, wait for a dial tone, and dial the destination telephone number. When you place a voice call, a B chann...

7 T ROUBLESHOOTING 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. This chapter covers the following main topics: ■ Checking the basics ■ Monitoring the LEDs ■ Evaluating symptom...

Monitoring LEDs 7-2 ■ Verify that the ISDN cable is properly connected to the 3C882 ISDN modem and the ISDN wall jack. The 3C882 ISDN modem will not operate if connected to an analog telephone wall jack. Make sure that the 3C882 ISDN modem is connected directly into the ISDN wall outlet without conn...

Evaluating Symptoms and Solutions 7-3 Monitoring the B Channel LEDs Attempt to place a call and observe the B channel LED(s). The B1 and B2 LEDs flash amber for a voice call or green for a data call during the call establishment phase. They then remain continuously amber or green once the connection...

Using On-Line Help 7-5 Using On-Line Help The following on-line help is available. ■ For comprehensive information about the 3C882 ISDN modem, click on the 3ComImpact IQ Help icon in the 3ComImpact IQ program group. ■ From the 3C882 Configuration dialog box for Windows, click the Help button for inf...

A O RDERING ISDN S ERVICE This appendix describes how to order ISDN service. You can either let 3Com order ISDN service for you, or you can call your telephone company and order it yourself. Placing the ISDN Order Through 3Com Simply call 1-800-572-3Com to have your ISDN line ordered for you. 3Com w...

Placing the ISDN Order Through Your Telephone Company A-2 If the representative has the requested code listed, go to step 7. If the representative does not have the code listed, go to step 4. * Having two telephone numbers assigned to an ISDN line allows both analog ports to be used simultaneously. ...

Placing the ISDN Order Through Your Telephone Company A-3 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. * The Directory Number, Circuit-switched Voice, and Circuit-switched Voice Limit parameters...

Placing the ISDN Order Through Your Telephone Company A-5 Northern Telecom DMS 100 Switch To order ISDN service for the Northern Telecom® DMS 100 switch, supply the telephone company with the information provided in Table A-4. * FCO (also referred to as Additional Call Offering) allows you to receiv...

B AT C OMMANDS , S R EGISTERS , AND R ESULT C ODES 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...

S Registers B-4 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 non-volatile memory and will not be cleared or returned ...

Result Codes B-8 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 c...

C S PECIFICATIONS 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 ...

RS-232 COM Port Pin Specifications C-2 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 ...

PC Serial Cable Pin Specifications C-3 PC Serial Cable Pin Specifications The DB25 male to DB9 female pin assignments for the PC serial cable are provided in Table C-2. Macintosh Serial Cable Pin Specifications The DB25 male to 8-pin DIN male pin assignments for the Macintosh serial cable are provid...

D C ONFIGURATION U SING 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 Window...

Configuration Using DOS D-2 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’sCOM port. When y...

E T ECHNICAL S UPPORT 3Com provides easy access to technical support information through the variety of services described in this appendix. On-line Technical Services 3Com offers worldwide product support seven days a week, 24 hours a day, through the following on-line systems: ■ 3Com Bulletin Boar...

On-line Technical Services E-2 Call the telephone number nearest you: Access by Digital Modem ISDN users can dial-in to 3ComBBS using a digital modem for fast access up to 56 Kbps. To access 3ComBBS using ISDN, dial the following number: (408) 654 2703 World Wide Web Site Access the latest networkin...

On-line Technical Services E-3 3ComForum on CompuServe 3ComForum is a CompuServe-based service containing patches , software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. To use 3ComForum, you need a CompuServe account. To use 3ComForum: 1...

Support from Your Network Supplier E-4 Support from Your Network Supplier If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware ma...

G LOSSARY 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 AT...

G LOSSARY 2 COM port The communications port (also referred to as a serial port). The 3C882 ISDN modem communications port allows a maximum baud rate of 230.4 Kbps. Note that most computer COM ports only allow a maximum of 115.2 Kbps. However, accelerator cards can be purchased to increase the compu...

G LOSSARY 3 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. There are two types of lines which provide access to ISDN,...

G LOSSARY 4 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. POTS Plain old telephone service. PPP Point-to-Poin...

I NDEX Numerics 3C882 specifications C-13Com Bulletin Board Service (3ComBBS) E-1 3ComFacts E-33ComForum E-3 A analog equipment installation 2-6analog port placing calls 6-6receiving calls 6-6 Apple macintosh requirements 1-6Async-Sync PPP 1-3AT commands list B-1placing an ISDN data call 6-2 AT&...