3Com 3C882 manual

® 3C OM I MP A CT  IQ E XTERNAL ISDN M ODEM U SER G UIDE Part No. 09-0885-000 Published July 1996[...]

3Com C orporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145  3Com Corporation, 1996. All rights reserved. No part of this documentation may be reproduced in an y form or by any means or used to make any deriv ative work (such as translation, transformation, or adaptation) without permission from 3Com C orporation. 3C om [...]

® 5 Y EAR L IMITED W ARRANTY 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 3C omImpact IQ Ex t ernal ISDN modem has a 5 Y ear limited warranty on the hardware in lieu of the standard 1 year warranty . The software for the 3C [...]

C ONTENTS A BOUT T HIS G UIDE Introduction 1 How to Use This Guide 1 Con ventions 2 1 I NTRODUCTION 3C882 ISDN Modem F eatures 1-2 Easy Installation and Use 1-2 High P er formance 1-3 Prot ocols 1-3 ISDN Standards and Int er face 1-3 Security 1-4 V oice F eatures 1-4 Upgradability 1-4 Diagnostics 1-4 W arranty 1-4 3C882 ISDN Modem P ackage Contents[...]

3 C ONFIGURATION FOR AN IBM-C OMPATIBLE PC Configuring the 3C882 ISDN Modem f or a PC 3-1 Installing the 3C882 Software 3-2 Running SPID Wizard 3-3 Configuring Multilink PPP 3-8 Configuring the B Channel Rate 3-9 Configuring Voice C all Routing 3-9 V erifying the Configuration 3-11 Setup Using Windows 95 3-13 Setup Using Windows NT RAS 3-17 4 [...]

7 T ROUBLESHOOTING Checking the Basics 7-1 Monitoring LEDs 7-2 Monitoring the TEST LED 7-2 Monitoring the D Channel LED 7-2 Monitoring the B Channel LEDs 7-3 Evalua ting Symptoms and Solutions 7-3 Using On-Line Help 7-5 Finding Mor e Information 7-5 Contacting T echnical Suppor t 7-5 Downloading F irmware to Y our 3C882 ISDN Modem 7-5 A O RDERING I[...]

E T ECHNICAL S UPPORT On-line T echnical Services E-1 3Com Bulletin Board Service E-1 W orld Wide Web Site E-2 3ComF orum on CompuSer ve E-3 3ComF acts Automated F ax Ser vice E-3 Support from Y our Network Supplier E-4 Support from 3Com E-4 Returning Pr oducts for Repair E-4 G LOSSARY I NDEX L IMITED W ARRANTY 3C OM E ND U SER S OFTWARE L ICENSE A[...]

F IGURES 1-1 Network Access with the 3C882 ISDN Modem 1-1 1-2 ISDN Information Sheet 1-7 2-1 Installation Steps f or the 3C882 ISDN Modem 2-1 2-2 Fr ont P anel LED Indicators 2-2 2-3 Back P anel Connectors 2-2 2-4 Computer t o 3C882 ISDN Modem C OM Port Connection 2-4 2-5 ISDN Cable Connection 2-5 2-6 Analog Equipment C onnection 2-6 2-7 Po wer Cab[...]

4-1 Main 3C882 Configuration St eps for a Macintosh 4-1 4-2 3ComImpact IQ Installer Icon 4-2 4-3 Installation Confirmation Message Bo x 4-2 4-4 Software Installation Location Dialog Bo x 4-3 4-5 Successful Installation Message Box 4-3 4-6 3ComImpact IQ Pr ogram Icon 4-4 4-7 Select Modem Port Screen 4-4 4-8 SPID Wizard Start Screen 4-5 4-9 Switch [...]

T ABLES 1 T ext Con ventions 2 2 Notice Icons 2 2-1 Fr ont P anel 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 f or A T&T 5ESS NI1 A-3 A-3 Line Configuration f or A T&T 5ESS Cust om A-4 A-4 Line Configuration f or DMS 100 A-5 A-5 [...]

A BOUT T HIS G UIDE Introduction This guide describes how to install, operate , and troubleshoot the 3ComImpact  IQ External ISDN Modem, referr ed 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 pr oduct information. How to U se This Gui[...]

Conventions 2 C on ven tions T able 1 and T able 2 list text and icon conventions that are used throughout this guide. T able 1 T ex t C onventions 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 typefa[...]

1 I NTRODU CTION Th e 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 ser vices from local telephone companies in North America. One model (3C882) suppor ts both IBM [...]

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 transmission speeds of up to 230.4 Kbps. ISDN techno[...]

3C882 ISDN Modem Features 1-3 High P er formance ■ Stac compression, for data throughput of up to 230.4 Kbps , which conforms to these IETF drafts: The PPP Compression Control P rotoc ol , March 1994, and PPP Stacker LZS C ompression Protoc ol , February 1996 ■ An asynchronous RS-232-D data port for connectivit y t o IBM or compatible PC and Ap[...]

3C882 ISDN Modem Features 1-4 Security ■ P assword A uthentication Prot ocol (P AP) and Challenge Handshake Authentication Pr otocol (CHAP) support on both single-channel and Multilink PPP calls (IETF RFC 1334) V oice F eatures ■ D ynamic bandwidth allocation (DBA), which allows you to place or receive a v oice call while a Multilink PPP call i[...]

3C882 ISDN Modem Package Contents 1-5 3C882 ISDN Modem P ackage C ontents The 3C882 ISDN modem package contents contains one each: ■ 3ComImpact IQ External ISDN Modem ■ P ower cable with an AC wall transf ormer ■ RJ -45/RJ -11 ISDN telephone cable ■ 3.5-inch installation diskette for PCs running Windows® 95, Windows NT®, Windows 3.x, or D[...]

Before You Install the 3C882 ISDN Modem 1-6 IBM PC or C ompatible Requirements An IBM-compatible PC must have the f ollowing: ■ A 386, 486, or Pentium  pr ocessor ■ 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 MB of free space ■ A high-densi[...]

Before You Install the 3C882 ISDN Modem 1-7 ISDN Information Enter your ISDN telephone number(s) in the inf ormation sheet shown in F igure 1-2. Y ou will need this information during configuration of the 3C882 ISDN modem. Although the 3C882 ISDN modem automatically configures the ISDN switch type and Ser vice P rofile Identifier (SPID) number([...]

Before You Install the 3C882 ISDN Modem 1-8 ISDN Switch T ype. Place a check mark next to the ISDN switch your telephone compan y uses. Each switch type has a corresponding provisioning table in Appendix A. Number of ISDN T elephone Numbers. Y our one ISDN telephone line can support two ISDN telephone numbers. If you ordered one ISDN t elephone num[...]

2 I NST ALLING THE 3C882 ISDN M ODEM This chapter describes how t o install the 3C882 ISDN modem for use with an IBM or IBM-compatible PC or an Apple Macintosh computer . This installation procedure assumes that y ou are familiar with your Apple Macintosh or IBM-compatible computer . If you are not, refer to the user guide that accompanied y our co[...]

Familiarizing Yourself with the 3C882 ISDN Modem 2-2 F amiliarizing Y ourself with the 3C882 ISDN M odem Y ou 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 F igure 2-2, consists of eight front panel LEDs that are described in T able [...]

Familiarizing Yourself with the 3C882 ISDN Modem 2-3 T able 2-1 Fr ont Panel LED Indicat or Definitions LED Color Description PWR Green Po wer Indicat or . Lit when power is on and remains lit as long as power is supplied to the unit. TEST Green Self-T est/Status. Flashes when the 3C882 ISDN modem is executing its power-up self-test or a user-init[...]

Installing a Serial Cable 2-4 Installing a Serial Cable Y ou will need the following type of serial cable. ■ F or a Macintosh computer , you will need a 25-pin male to mini DIN 8-pin male serial cable. Refer to the inf ormation enclosed in your 3C882 ISDN modem package to order a free cable. If you are providing y our own serial cable , ensure th[...]

Installing the ISDN Cable 2-5 2 Connect the other end of a serial cable to a serial C OM port on the back of your computer and tighten the connector screws. On a PC, most COM port connec tors ar e labeled C OM, SERIAL, or RS-232-D. On an IBM A T® PC and most laptops or notebooks, connect the cable to a 9-pin COM port connector . If your PC has a 2[...]

Installing Analog Equipment 2-6 Installing Analog Equipment Y ou can connect an analog touch-tone telephone , answering machine , fax machine, or ex t ernal analog modem to the 3C882 ISDN modem. Y ou will need an RJ-11 to RJ-11 cable for each analog phone port connection. T o install an analog device: 1 Insert one RJ-11 connec t or to a phone port [...]

Installing Analog Equipment 2-7 CAUTION: The 3C882 ISDN modem is designed to operate with telephones that are compatible with the original A T&T ® 2500 touch-tone telephone standard . 3Com guar antees proper operation of up to thr ee compatible touch-tone devices per analog phone port. The 3C882 ISDN modem is designed to provide power and ring[...]

Installing the Power Cable 2-8 Installing the P ower Cable T o install the power cable: 1 Connect the 3C882 ISDN modem power cable t o the 9 VDC pow er connector on the back panel of the ISDN modem, as shown in F igure 2-7. Figure 2-7 P ower Cable Connection 2 Plug the transformer end of the pow er cable into a surge- protected standard 110 V AC wa[...]

3 C ONFIGURATION FOR AN IBM-C OMPATIBLE PC This chapter describes how t o configure the 3C882 ISDN modem using the Windows operating system. Additional steps are requir ed for Windows 95 and Windows NT users. The main topics are as f ollows: ■ Configuring the 3C882 ISDN modem ■ Setup Using Windows 95 ■ Setup Using Windows NT RAS F or instru[...]

Configuring the 3C882 ISDN Modem for a PC 3-2 Installing the 3C882 Software T o install the 3C882 ISDN modem software: 1 Insert the 3ComImpact IQ Windows & DOS Installation Diagnostic Utilities diskette into an a vailable floppy driv e. 2 If you are using Windows 95, select Run from the Start menu. If you are using Windows 3.x, select Run from[...]

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). Y ou will need the ISDN telephone numbers from the ISDN Information Sheet you completed in Chapter 1. 1 Double-click the 3ComImpact IQ 3.0 icon shown in Figur e 3-3. Figure 3-3 [...]

Configuring the 3C882 ISDN Modem for a PC 3-4 The dialog box f or the first telephone number appears, as shown in F igure 3-5. Figure 3-5 F irst T elephone Number Dialog Box for PC 2 Enter the first telephone number for y our ISDN line. 3 Click Next . A message appears, indicating that the 3C882 ISDN modem is detecting the SPID for the first tel[...]

Configuring the 3C882 ISDN Modem for a PC 3-5 Figure 3-6 Second T elephone Number Dialog Box for PC 4 If you ha ve a second telephone number f or your ISDN line , enter it, and then click Next . If not, leav e the field incomplete , and then click D one . After successful configuration of your switch type and SPID number(s), Figure 3-7 appears. F[...]

Configuring the 3C882 ISDN Modem for a PC 3-6 5 Click Finish . The on-line registration dialog bo x appears. Enter your information and then click Register Now . After your inf ormation is received , the Configuration dialog box appears , as shown in Figure 3-8. Figure 3-8 C onfiguration Dialog Box f or PC A message bar at the bottom of the dialo[...]

Configuring the 3C882 ISDN Modem for a PC 3-7 T ools. Click ing on the T ools button produces buttons f or F irmware , T ests , Sav e and Restore . ■ Fi rm w a re . Refer to the readme file f or firmware download instructions. ■ T ests. Use the T ests tool only under the direction of technical support personnel. ■ Sav e. Pressing the Sa ve [...]

Configuring the 3C882 ISDN Modem for a PC 3-8 T o run the SPID Wizard for a second telephone number: 1 Fr om the Configur ation dialog box, check the Enabled box locat ed in the Number 2 group box. A message box appears and asks you t o confirm that you want to run SPID Wizard. 2 Click OK . The Second T elephone Number dialog box appears. 3 Enter[...]

Configuring the 3C882 ISDN Modem for a PC 3-9 C onfiguring the B Channel Rate By default, the B Channel R ate is 56 Kbps. Check with your telephone company f or the appropriate B Channel Rate. T o change the B Channel Rate, do the following: 1 Select the appropriate radio button, 56 Kbps or 64 Kbps. 2 Click the Update button to download the change[...]

Configuring the 3C882 ISDN Modem for a PC 3-10 One T elephone Number per Analog Device. If you have two telephone numbers and two analog devices , you may want one telephone number associated ex clusively with just an analog telephone and the other telephone number associated with just a fax machine. In this example, shown in F igure 3-10, calls to[...]

Configuring the 3C882 ISDN Modem for a PC 3-11 Figure 3-11 Configuration for One T elephone Number & T wo Devices T o change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with T elephone Number 1 by checking the appropriate Phone P or t bo x. 2 If your ISDN line has two t elephone numbers, specif[...]

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 tr ansmitted by the telephone company for informational purposes only . Before y ou close the Configuration dialog box, do the following . 1 Confirm that the C onfiguration dialog box parameters are correc t. 2 Click the Updat[...]

Setup Using Windows 95 3-13 Setup Using W indow s 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 alr eady been installed. 1 Reboot your PC with the 3C882 ISDN modem pow ered up and physically c onnected t[...]

Setup Using Windows 95 3-14 Figure 3-13 Install Fr om Disk Dialog Box 4 Insert the 3ComImpact IQ Windows & DOS Installation Diagnostic Utilities diskette into an av ailable floppy drive. 5 Click OK . The Select Device dialog box appears, as shown in F igure 3-14. Figure 3-14 Select De vice Dialog Bo x[...]

Setup Using Windows 95 3-15 6 Select 3C omImpact IQ and then click OK . If you are planning to run your comput er at the maximum 230.4 Kbps baud rate , you must set up the driver that allows a maximum 230.4 Kbps baud rate. T o do so, go on to step 7. Other wise, if you plan to run your comput er at baud rates up to 115.2 Kbps, the process is comple[...]

Setup Using Windows 95 3-16 9 Check the box to pr event automatic det ection of the 3ComImpact IQ ISDN modem. 10 Click Next . The dialog box shown in F igure 3-16 appears. Figure 3-16 Modem Manufacturers and Models Dialog Box 11 Fr om the Manufacturers list box, selec t 3C OM . 12 Fr om the Models list box, select 3C omImpact IQ 230K . 13 Click Nex[...]

Setup Using Windows NT RAS 3-17 Go to Chapter 5, “ Advanced C onfiguration,” to review the default settings and ensure that they reflect your pref erences. If you prefer not t o change the default settings, go on to Chapter 6, “Placing and Receiving Calls.” Setup Using W indow s NT RAS This section describes how to set up the 3C882 ISDN m[...]

Setup Using Windows NT RAS 3-18 Figure 3-17 Network Settings Dialog Box 4 Fr om the Installed Network Software list box, select Remote Access Service and then click Configure . The Remote A ccess Setup dialog box appears, as shown in F igure 3-18. Figure 3-18 Remote Access Setup Dialog Box 5 If a modem is already configured , select it, and then [...]

Setup Using Windows NT RAS 3-19 6 Click Add . The Add P or t dialog box appears . 7 Select a COM port, and then click OK . The Remote A ccess Setup message box appears. 8 Click Cancel. The Configur e P or t dialog box appears. 9 Select 3ComImpact IQ for baud rates up to 115.2 Kbps or select 3ComImpact IQ 230K for baud rates up to 230.4 Kbps and th[...]

4 C ONFIGURATION FOR AN A PPLE M ACINTOSH C OMPUTER This chapter describes how t o configure the 3C882 ISDN modem using an Apple Macintosh computer . Y ou will need the ISDN telephone numbers from the ISDN Information Sheet you completed in Chapter 1. C onfiguring the 3C882 ISDN Modem for a Macintosh C omputer The main steps are sho wn in F igure[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-2 Installing the 3C882 Software T o 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 diskette icon. 2 Double-click the 3ComImpact IQ Ins[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-3 4 Click Continue . F igure 4-4 appears. Figure 4-4 Software Installation L ocation Dialog Box 5 Select the location on your hard drive wher e you would like the 3ComImpact IQ folder . If you do not want to use the default folder name , change the name. Click Install . After all of the 3C[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-4 Running SPID Wizard The SPID Wizard automatically detects your telephone company’ s switch type and configures the SPID(s). SPID Wizard automatically runs when you ar e configuring the 3C882 ISDN modem for the first time or if you connect the 3C882 ISDN modem to a differ ent ISDN li[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-5 2 Select the por t to which the 3C882 ISDN modem is connected and then click OK . The SPID Wizard star t scr een appears, as shown in F igure 4-8. Figure 4-8 SPID Wizard Start Screen If you do not want to run the SPID Wizard, click Cancel. The Configur ation dialog box appears (see F ig[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-6 Figure 4-9 S witch Detection Status Screen for Macintosh After the switch type is configured , the First T elephone Number dialog box appears , as shown in Figure 4-10. Figure 4-10 First T elephone Number Screen for Macintosh[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-7 4 Enter the first telephone number for y our ISDN line and then click Next . After SPID Wizard configures the SPID for the first telephone number , Figure 4-11 appears. Figure 4-11 Second T elephone Screen for Macintosh 5 If your ISDN line has a second t elephone number assigned to it[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-8 Figure 4-12 Successful Configuration Screen 6 Click Done . The on-line registration dialog bo x appears. Enter your information and then click Register Now . Af ter your information is sent, the Configuration dialog box appears , as shown in F igure 4-13. Figure 4-13 Configuration Dia[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-9 The Configuration dialog bo x buttons do the follo wing. Update C onfiguration. Click Update Configuration to download parameter changes to y our ISDN modem ’ s S registers. Update Firmware. Refer to the readme file f or firmware download instructions. Diagnostics. Use the Diagnos[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-10 C onfiguring the B Channel Rate By default, the B Channel R ate is 56 Kbps. Check with your telephone company f or the appropriate B Channel Rate. T o change the B Channel Rate, do the following: 1 Select the appropriate radio button, 56 Kbps or 64 Kbps. 2 Click the Update Configur at[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-11 One T elephone Number per Analog Device. If you have two telephone numbers and two analog devices , you may want one telephone number associated ex clusively with just an analog telephone and the other telephone number associated with just a fax machine. In this example, shown in F igur[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-12 Note that while you are using the fax machine , for example, you cannot use the telephone to place or r eceive calls because your ISDN line has only one telephone number . T o change the voice call routing setting: 1 Specify which Phone port should handle the calls associated with T ele[...]

Configuring the 3C882 ISDN Modem for a Macintosh Computer 4-13 Before closing the C onfiguration dialog box, do the following . 1 Confirm that the C onfiguration dialog box parameters are correc t. 2 Click the Update Configur ation button to update this information to the 3C882 ISDN modem. 3 Click Quit to exit the C onfiguration dialog bo x. T[...]

5 A DVANCED C ONFIGURATION Adv anced C onfigura tion P aramet er Default V alues T o change advanced configuration parameter v alues, you will need terminal emulation software to allow y ou to use A T commands. F or Windows 95 and Windows NT users, HyperT erminal terminal emulation software is provided with those operating systems . For Macintosh[...]

Advanced Configuration Parameter Default Values 5-2 QuickSelect The QuickSelect feature automatically detects and uses the protocol requir ed for each digital call, either V .120 or Async-Sync PPP . T ypically , V .120 is used for communication between two computers , while PPP is used for communication between a computer and an Internet ser vice p[...]

Advanced Configuration Parameter Default Values 5-3 Auto Answ er When Auto Answ er 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 A T A to answer the incoming data call. A C ONNECT message is then delivered to the RS-232 port upon successfu[...]

Changing The Parameter Settings 5-4 T o access the 3C882 Configur ation dialog box, Autobaud must be enabled. If the baud rate is set to a specific rate , you will not be able to access the Configur ation dialog box. Before setting a specific baud rate , ensure that the Configuration dialog box par ameters are set appropriately . T o set the b[...]

Changing The Parameter Settings 5-5 3 Ty p e : AT <command> 4 Press Ent er or Return. Refer to T able 5-1 f or the appropriate command . F or example, to disable compression, type A T%C0, and then press [Enter] or [Return]. An A T command line star ts with the characters A T . The command line accepts up to 40 command characters in the line ([...]

6 P LACING AND R ECEIVING C ALLS This chapter illustrates ho w to place and receive a v ariety of calls with your 3C882 ISDN modem. The 3C882 ISDN modem uses A T commands and S registers for call management. This chapter cov ers the following: ■ Placing ISDN data calls ■ Placing a Multilink PPP call ■ Placing a 56K T ollSaver call ■ Receivi[...]

Placing ISDN Data Calls 6-2 Placing Calls A utomatically If you are using standard communications software , selec t the 3ComImpact IQ ISDN modem. If the 3ComImpact IQ ISDN modem is not listed , selec t a Hayes ® -compatible modem configuration and dial out through the 3C882 ISDN modem. If you ar e using a Hayes-compatible modem configuration, y[...]

Placing ISDN Data Calls 6-3 3 Ty p e : AT D <telephone number> The 3C882 ISDN modem recognizes the A T command AT D to dial a digital ISDN data call. Correct examples of outgoing circuit-switched ISDN modem commands with dial strings are: A T D 1 408 654 2703 A TD14086542703 F or a summar y of the A T command set, see Appendix B. 4 Press Ent [...]

Placing a 56K TollSaver Call 6-4 F or 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: A TD 1 908 555 1212 Some Internet service providers require you to dial tw o telephone numbers to place a Multilink PPP call. The ampersand (&)[...]

Receiving ISDN Data Calls 6-5 T o manually dial a 56K T ollSaver call on a call by call basis, type the following: ATDD <telephone number> An example is as follows: A TDD 1 908 555 1212 By setting S Register 61=1, all outgoing calls will be 56K T ollSaver calls . Receiving ISDN Da ta Calls The 3C882 ISDN modem can receive incoming circuit-swi[...]

Placing Voice Calls Using an Analog Phone Port 6-6 Placing V oice Calls U sing an Analog Phone P or t T o 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 channel LED flashes amber , and then remains li[...]

7 T ROUBLESHOOTIN G This chapter explains how to isolat e and solve problems encountered with the 3C882 ISDN modem. Pr oblems may stem from incorrect option settings or improper installation. This chapter cov ers the following main topics: ■ Checking the basics ■ Monitoring the LEDs ■ Evaluating sympt oms and solutions ■ Using on-line help [...]

Monitoring LEDs 7-2 ■ V erify 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 connection to any intermediate telephone equipment [...]

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 gr een for a data call during the call establishment phase. They then remain continuously amber or green once the connection is established. I f they do not remain continuo[...]

Evaluating Symptoms and Solutions 7-4 B channel LED(s) do not remain green or amber Problem with your computer or application software or incompatible local or toll telephone company. Carefully monitor the B1 and B2 LEDs while attempting a call. These LEDs flash during call establishment and then remain green or amber once the connection is establi[...]

Using On-Line Help 7-5 Using On-Line Help The follo wing on-line help is available . ■ F or comprehensive inf ormation about the 3C882 ISDN modem, click on the 3ComImpact IQ Help icon in the 3ComImpact IQ program group . ■ F rom the 3C882 Configuration dialog bo x for Windows, click the Help button for inf ormation about the Configuration dia[...]

A O RDERING ISDN S ERVICE This appendix describes how to or der ISDN ser vice. Y ou can either let 3Com order ISDN service for you , or you can call your telephone compan y and order it yourself . Placing the ISDN Order Through 3C om Simply call 1-800-572-3Com to ha ve your ISDN line or dered for you . 3Com will provide the appropriat e line parame[...]

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

Placing the ISDN Order Through Your Telephone Company A-3 A T&T 5ESS Switch NI1 T o order ISDN service for the A T&T® 5ESS switch, supply the telephone company with the inf ormation provided in T able A-2. * The Directory Number, Circuit-switched Voice, and Circuit-switched Voice Limit parameters should be set to 2 to allow both analog por[...]

Placing the ISDN Order Through Your Telephone Company A-4 A T&T 5ESS C ustom Switch T o order ISDN service for the A T&T 5ESS Cust om switch, supply the telephone company with the information provided in T able A-3. * The Directory Number, Circuit-switched Voice, and Circuit-switched Voice Limit parameters should be set to 2 to allow both a[...]

Placing the ISDN Order Through Your Telephone Company A-5 Northern T elecom DMS 100 Switch T o order ISDN service for the Nor thern T elecom® DMS 100 switch, supply the telephone company with the information provided in T able A-4. * FCO (also referred to as Additional Call Offering) allows you to receive an incoming call while a dual-channel Mult[...]

Placing the ISDN Order Through Your Telephone Company A-6 Siemens EWSD Switch T o order ISDN service for the Siemens® EWSD switch, supply the telephone company with the inf ormation provided in T able A-5. * The Directory Number, Circuit-switched Voice, and Circuit-switched Voice Limit parameters should be set to 2 to allow both analog ports to be[...]

B AT C OMMANDS , S R EGISTERS , AND R ESUL T C ODES The 3C882 ISDN modem A T commands are summarized in T able B-1, S registers in T able B-2, and result codes in T able B-3. A T C ommand Set T able B-1 summarizes the A T command set for the 3C882 ISDN modem. T able B-1 A T Command Set Summary Command Function (Example) Description A Answer incomin[...]

AT Command Set B-2 &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). E AT comm[...]

AT Command Set B-3 * To access the Configuration dialog box, the baud rate must be set to Autobaud. 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 Lin[...]

S Registers B-4 S Registers T able B-2 provides a complete list and descriptions of the S registers supported by the 3C882 ISDN modem. All S registers ex cept S0 are the 3Com extended registers . S registers notated with an asterisk ar e stored in non-volatile memor y and will not be cleared or returned t o the default value if the ISDN modem is po[...]

S Registers B-5 S57 Terminal Initialization State: Indicates the status of the first TEI using SPID 1. This field is read-only. 0 — ISDN modem has not attempted initialization 1 — ISDN modem has initialized successfully using SPID 1 2 — ISDN modem has failed initialization using SPID 1 S58 Terminal Initialization State: Indicates the status o[...]

S Registers B-6 S63 * Voice Call Routing (bit map) 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 #[...]

S Registers B-7 * The values of these S registers are stored in non-volatile memory and will not be cleared or returned to the default value if the ISDN modem is powered down. 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.120 Maximum[...]

Result Codes B-8 Result C odes T able B-3 lists the 3C882 ISDN modem result codes. T able 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 t[...]

C S PECIFICATIONS This appendix describes the physical specifications of the 3C882 ISDN modem and provides the pin assignments of the RS-232 C OM por t , 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 c[...]

RS-232 COM Port Pin Specifications C-2 RS-232 C OM Port Pin Specifications The asynchronous RS-232-D C OM por t on the 3C882 ISDN modem, labeled RS-232, is a standard DB-25 female connector . The 3C882 ISDN modem asynchronous por t pin assignments, shown in T able C-1, conform to standard definitions for data communications equipment (DCE). T abl[...]

PC Serial Cable Pin Specifications C-3 PC Serial Cable Pin Specifica tions The DB25 male to DB9 f emale pin assignments for the PC serial cable are provided in T able C-2. Macintosh Serial C able Pin Specifications The DB25 male to 8-pin DIN male pin assignments f or the Macintosh serial cable are provided in T able C-3. T able C-2 PC COM P or t [...]

D C ONFIGURATION U SING DOS C onfigura tion Using DOS T o configure the 3C882 ISDN modem for an IBM PC or compatible computer using DOS, follow these steps. Y ou will need the ISDN Information Sheet you completed in Chapter 1. 1 Create a dir ector y on the har d drive , and then inser t the 3ComImpact Windows & DOS Installation Diagnostic Uti[...]

Configuration Using DOS D-2 The configuration program launches and then the P or t Settings screen appears. T o move the cursor around the screen, use the [Up Arrow] and [Down Arrow] keys. T o selec t a parameter , use the [Space Bar]. 4 Use the [Space Bar] to select the 3C882 ISDN modem ’ s C OM por t. When you select the por t, a default stand[...]

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 por ts, you will want to configure v oice call routing by assigning telephone numbers to the analog ports. By default, calls to and from both ISDN telephone numbers ring t[...]

E T ECHNICAL S UPPORT 3Com pro vides easy access to technical support information through the variety of services described in this appendix. On-line T echnical Ser vices 3Com off ers worldwide product suppor t seven days a w eek, 24 hours a day , through the following on-line systems: ■ 3Com Bulletin Board Service (3ComBBS) ■ W orld Wide W eb [...]

On-line Technical Services E-2 Call the telephone number nearest y ou: Acc ess by Digital Modem ISDN users can dial-in to 3ComBBS using a digital modem f or fast access up to 56 Kbps. T o access 3ComBBS using ISDN, dial the following number: (408) 654 2703 W orld Wide W eb Site Access the latest netw orking information on 3Com ’ s W orld Wide Web[...]

On-line Technical Services E-3 3C omF orum on CompuServe 3ComF orum is a CompuSer ve-based service containing patches , software, drivers, and technical ar ticles about all 3Com products, as well as a messaging section for peer suppor t. T o use 3ComF orum, you need a C ompuSer ve account. T o use 3ComF orum: 1 Log on to C ompuSer ve . 2 Enter go t[...]

Support from Your Network Supplier E-4 Suppor t from Y our Network Supplier If additional assistance is required , contac t your network supplier . M any suppliers are authoriz ed 3Com service par tners who are qualified to pr ovide a variety of services, including network planning, installation, hardware maintenance , application training, and su[...]

G LOSSARY Async-Sync PPP C onv ersion Asynchronous to synchronous PPP con version. The 3C882 ISDN modem converts asynchronous PPP into synchronous (HDL C-based) PPP that can be transpor ted in ISDN B channels to communications ser vers that hav e integrated ISDN BRI, PRI, or T1 access lines. A T commands A Ttention Codes. A T commands are used to c[...]

G LOSSARY 2 C OM 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 C OM por ts only allow a maximum of 115.2 Kbps . However , accelerator cards can be purchased t o increase the computer ’ s C OM por t rate to 230.4 Kbps. Com[...]

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 PO T s ser vice. There are tw o types of lines which provide access to ISDN, BRI and PRI. Kbps Kilobits per second. The r[...]

G LOSSARY 4 PA P Passw ord Authentication P rotocol. P AP is one of two PPP authentication protocols; CHAP is the other . An authentication protocol requests inf ormation to verify a v alid user . P AP requests the user ’ s name and password for verification. PO TS Plain old telephone service. PPP P oint-to-P oint Pr otocol. PPP provides a stand[...]

I NDEX Numerics 3C882 specifications C-1 3Com Bulletin Board Service (3ComBBS) E-1 3ComF acts E-3 3ComF orum E-3 A analog equipment installation 2-6 analog port placing calls 6-6 receiving calls 6-6 Apple macintosh requirements 1-6 Async-Sync PPP 1-3 A T commands list B-1 placing an ISDN data call 6-2 A T&T 5ESS Custom switch A-4 A T&T 5ES[...]

I NDEX 2 F fax ser vice. See 3ComF acts front panel components 2-2 LED indicator definitions 2-3 I installation 2-1 analog equipment 2-6 general steps 2-1 ISDN cable 2-5 power cable 2-8 serial cable 2-4 ISDN 1-1 Information Sheet 1-7 ordering service for A T&T 5ESS Custom A-4 for A T&T 5ESS NI1 A-3 for Northern T elecom DMS 100 A-5 for Sie[...]

I NDEX 3 serial por t 1-3 connection for Macintosh 2-5 connection for PC 2-5 Siemens EWSD switch A-6 specifications C-1 switch type A-3 to A-6 T technical support E-1 T est LED 7-2, 7-3 troubleshooting 7-1 checking the basics 7-1 evaluating symptoms and solutions 7-3 monitoring LEDs 7-2 V V .120 protocol 1-2 voice calls placing 6-6 receiving 6-6 W[...]

LIMITED W ARR ANTY HARDW ARE: 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller: Internetworking products One year Network adapters Lifetime Ethernet stackable hubs and unmanaged Ethe[...]

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. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES[...]

IMPORT ANT: Read Before Using This Product 3COM END USER SOFTWARE LIC ENSE 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 US[...]

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 re[...]

FCC CLASS B C ERTIFICATION 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 cau[...]

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 ensur[...]

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