3Com manual Use the Space Bar to select the 3C882 Isdn modem’s COM port

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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].

4Use 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.

5Press [F10] to connect to the 3C882 ISDN modem via the chosen COM port.

The Configuration screen appears.

6Select the ISDN switch type.

Your telephone company can provide this information.

7In the Phone #1 field, enter the telephone number to which your ISDN modem is connected.

8Enter the corresponding Service Profile Identifier (SPID) in the SPID #1 field for the telephone number you entered in the previous step.

You should have received this SPID from your telephone company.

9If you have a second telephone number associated with your ISDN telephone line (some telephone companies require two), enter the number and corresponding SPID in the Phone #2 and SPID #2 fields.

10Use the [Space Bar] to select (enable) or unselect (disable) the MLPPP Enable box.

Multilink PPP combines the ISDN B channels, creating a virtual single digital connection of up to 128 Kbps. Note that the destination you are dialing must also support Multilink PPP, or the dual-channel link will not occur and you will get a single B channel connection.

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Contents 3COMIMPACT IQ External Isdn Modem User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Year Limited Warranty Contents Placing Isdn Data Calls Configuring Multilink PPPRegisters AT&T 5ESS Custom Switch A-4Support from 3Com E-4 Returning Products for Repair E-4 World Wide Web SiteFigures Main 3C882 Configuration Steps for a Macintosh Pin Descriptions TablesIntroduction How to Use This GuideAdvanced configuration Chapter About this GuideConventions Introduction Network Access with the 3C882 Isdn Modem3C882 Isdn modem provides the following features 3C882 Isdn Modem FeaturesEasy Installation and Use Ansi V.120 rate adaption High PerformanceProtocols Isdn Standards and InterfaceSecurity Voice FeaturesDiagnostics WarrantyBefore You Install the 3C882 Isdn Modem 3C882 Isdn Modem Package ContentsApple Macintosh Requirements IBM PC or Compatible Requirements3ComImpact IQ Isdn Modem Isdn Switch TypeIsdn Information Isdn Information SheetBefore You Install the 3C882 Isdn Modem Main hardware installation steps are depicted Installing the 3C882Familiarizing Yourself with the 3C882 Isdn Modem Front Panel LED IndicatorsGreen Front Panel LED Indicator DefinitionsAs power is supplied to the unit Color DescriptionYou will need the following type of serial cable Installing a Serial CableInstalling the Isdn Cable Analog Equipment Connection Installing Analog EquipmentInstalling Analog Equipment Power Cable Connection Installing the Power CableMain steps are shown in Figure Configuration for ANIBM-COMPATIBLE PC Configuring the 3C882 Isdn Modem for a PCClick OK Installing the 3C882 SoftwareTo install the 3C882 Isdn modem software You will see a start message, as shown in Figure Running Spid WizardDouble-click the 3ComImpact IQ 3.0 icon shown in Figure First Telephone Number Dialog Box for PC Second Telephone Number Dialog Box for PC Configuration dialog box buttons do the following Click FinishConfiguring the 3C882 Isdn Modem for a PC Appears Click Finish Configuring Multilink PPPConfiguring Voice Call Routing Configuring the B Channel RateConfiguring the 3C882 Isdn Modem for a PC 11 Configuration for One Telephone Number & Two Devices Verifying the ConfigurationConfiguring the 3C882 Isdn Modem for a PC 12 New Hardware Dialog Box Setup Using Windows13 Install From Disk Dialog Box 15 Install New Modems Dialog Box 16 Modem Manufacturers and Models Dialog Box Setup Using Windows NT RAS 18 Remote Access Setup Dialog Box 17 Network Settings Dialog BoxConfigure Port dialog box appears Remote Access Setup dialog box appearsConfiguring the 3C882 Isdn Modem for a Macintosh Computer Configuration for AN Apple Macintosh ComputerClick Continue. -3 appears Message box appearsClick Continue. -4 appears Click OK This completes the software installation procedureSelect Modem Port Screen 3ComImpact IQ Program IconSpid Wizard Start Screen 10 First Telephone Number Screen for Macintosh 11 Second Telephone Screen for Macintosh 12 Successful Configuration Screen Quit. Click Quit to leave the Configuration dialog box Configuring the 3C882 Isdn Modem for a Macintosh Computer 15 Configuration for One Telephone Number per Device Verifying the Configuration Configuring the 3C882 Isdn Modem for a Macintosh Computer Advanced Configuration Parameter Default Values Advanced ConfigurationDBA Baud Rate Auto AnswerSend the command AT $B 230400 to the 3C882 Isdn modem Changing The Parameter SettingsAnswer Auto Answer DisabledAutobaud Enabled TypePlacing Isdn Data Calls Placing and ReceivingCalls Placing Calls Manually Placing Calls AutomaticallyPlacing Multilink PPP Calls An example is as follows ATD 1 908 555 1212 & 1 908 555 Placing a 56K TollSaver CallChannels flash and then remain lit When the 3C882 Isdn modem receives a voice call,Receiving Isdn Data Calls An example is as follows Atdd 1 908 555Receiving Voice Calls Using an Analog Phone Port Placing Voice Calls Using an Analog Phone PortChecking the Basics TroubleshootingMonitoring the D Channel LED Monitoring LEDsMonitoring the Test LED Monitoring the B Channel LEDs Evaluating Symptoms and SolutionsDo not remain Or application software or Symptom Possible Cause SolutionLED remains lit Properly configured You receive a Cannot be sent Upon power up Previous firmwareFollowing on-line help is available Using On-Line HelpFinding More Information Contacting Technical Support Downloading Firmware to Your 3C882 Isdn ModemGive the representative the 3C882 Isdn modem Isdn code Ordering Isdn ServicePlacing the Isdn Order Through 3Com Placing the Isdn Order Through Your Telephone CompanyNumber of Telephone Numbers Package K Package U Table A-1 Isdn Order CodesTable A-2 SwitchCircuit-switched Data Telephone company with the information providedSwitch Dynamic To order Isdn service for the Northern Telecom DMSSwitch, supply the telephone company with the information Provided in Table A-4Key System Ekts Flexible Call Offering FCO Yes † EwsdAT Command Set AT Commands REGISTERS, and Result CodesHardware flow control default Host computer defaultAnswer mode only \Q0 disables flow control\T0 disables inactivity timer default Settings AT \SReset AT Z +++ Enter command stateRegisters except S0 are the 3Com extended registers RegistersIsdn Default S65 Isdn Caller ID for Voice Calls for Phone Port S75 Connection Delay Table B-3 lists the 3C882 Isdn modem result codes Result Codes3C882 Isdn Modem Specifications SpecificationsClear to Send CTS From Isdn modem RS-232 COM Port Pin SpecificationsReceive Data RD Send Data SD PC Serial Cable Pin SpecificationsMacintosh Serial Cable Pin Specifications To copy the README.TXT file, at the C\3Com prompt, type Configuration UsingConfiguration Using DOS Use the Space Bar to select the 3C882 Isdn modem’s COM port Configuration Using DOS Technical Support On-line Technical Services3Com Bulletin Board Service Call the telephone number nearest you World Wide Web SitePress Return to see the 3ComForum main menu 3ComFacts Automated Fax Service3ComForum on CompuServe To use 3ComForum Log on to CompuServeReturning Products for Repair U.S. and Canada, call 800 876 3266 for customer serviceSupport from Your Network Supplier Support from 3ComChannel GlossaryAsync-Sync PPP Conversion COM port Layer Isdn120 Plain old telephone serviceApple macintosh requirements 1-6 Async-Sync PPP Analog equipment installation 2-6 analog portIndex NumericsResult codes B-8 Data Using AT commands 6-2 voiceRegisters B-4 Serial cable installation DMS 100 A-5Index Limited Warranty Santa Clara, CA 95052-8145 408 3COM END User Software License Agreement For civilian agencies Interference Handbook Canadian Notice  1996, 3Com Corporation