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The I-modem and ISDN

2-7

Compression

The I-modem supports the leading de-facto standards for compression

over ISDN: Stac LZS, Microsoft, and Ascend.

Multilink PPP (MP-PPP)

Multilink PPP support enables the I-modem to use both of the available

B-channels simultaneously. The I-modem uses PPP/MP-PPP spoofing to

mediate between applications running on your computer, which may not

be aware of MP-PPP, and host computers that support MP-PPP. In effect,

the I-modem tricks both ends of the connection, keeping them happy

communicating the way they’re accustomed, while maximizing

throughput.

Universal Connect

When the I-modem is set to Universal Connect, it autosenses V.120, V.110,

or analog fax/modem connections. Use Universal Connect when calling

ISDN or analog Bulletin Board Systems (BBSs), for example. For details,

see Chapter 11, Handshaking, Error Control, Data Compression, and

Throughput, in the I-modem Command Reference manual.

V.110 Connections

V.120 and V.110 are standards for passing asynchronous data over ISDN

B-channels, which are inherently synchronous. To make a connection

using V.120 or V.110, the device at the other end of the connection must

also support V.120 or V.110. A typical application of V.120 is for BBSs.

Modem and Fax Calls

The I-modem emulates an analog fax/modem, allowing you to connect to

remote analog modems and fax machines.

Clear-Channel Synchronous Connections

When you set the I-modem to make clear-channel synchronous

connections, it sets up a 64 Kbps connection with a remote device,

enabling you to exchange any kind of synchronous data. Common

applications of clear-channel synchronous are videoconferencing and

remote access to mini- or mainframe computers.

Содержание 000698-13 -

Страница 1: ...Courier I modem Getting Started Guide Final Draft Based on part number 1 024 1153 00 1997 U S Robotics 8100 N McCormick Blvd Skokie IL 60076 2999 USA ...

Страница 2: ...re registered trademarks and Courier and x2 are trademarks of U S Robotics Microsoft MS DOS Windows and Windows NT are registered trademarks of Microsoft Corporation AppleTalk and Macintosh are trademarks of Apple Computer Inc Any trademarks trade names service marks or service names owned or registered by any other company and used in this manual are the property of their respective companies U S...

Страница 3: ...hapter 9 page 1 Other operating systems Chapter 10 page 1 Using LEDs Jumpers and DIP Switches To do this Go to Locate jumpers Chapter 12 page 5 Modify jumper settings internal Courier Chapter 12 page 5 Locate DIP switches on the internal Courier Chapter 12 page 3 Modify DIP switch settings on the internal Courier Chapter 12 page 3 Locate DIP switches on the external Courier Chapter 12 page 1 Modif...

Страница 4: ...SDN 2 2 The ISDN Basic Rate Interface 2 2 How Does the I modem Fit In 2 4 U Interface with Integrated NT 1 2 5 S T Interface 2 5 Setting Up Your I modem for ISDN 2 6 How the I modem Calls a Variety of Devices 2 6 Internet Access TurboPPP 2 6 Universal Connect 2 7 V 110 Connections 2 7 Modem and Fax Calls 2 7 Clear Channel Synchronous Connections 2 7 Chapter 3 Ordering ISDN Service 3 1 Overview 3 1...

Страница 5: ...ations for AT T 5ESS Custom 6 8 If You Have No SPIDS and Only One DN 6 9 If You Have One SPID and One DN 6 10 Chapter 7 Configuring With AT Commands 7 1 Overview 7 1 Configuring the I modem 7 1 What You Should Know 7 1 Directory Numbers 7 1 Service Profile Identifiers 7 1 Terminal Endpoint Identifier 7 1 Preparing to Send AT Commands 7 2 Configuring and Testing Your I modem 7 3 Step One Configurin...

Страница 6: ...Software 10 2 If You Are Using MS DOS 10 3 If You Are Using OS 2 10 4 If You Are Using UNIX Linux or AIX 10 5 Chapter 11 Configuring TurboPPP With AT Commands 11 1 Overview 11 1 Point to Point Protocol PPP ML PPP 11 1 Determining TurboPPP Settings 11 1 Setting PPP ML PPP Host and Originate Mode 11 2 Making Calls With ML PPP 11 2 Dynamic Data Bandwidth Allocation 11 4 Controlling Dynamic Bandwidth ...

Страница 7: ... 14 4 Limiting the Lowest Possible Connect Speed 14 5 Limiting a Range of Possible Connect Speeds 14 5 N and U Command Values 14 6 Troubleshooting x2 Client Connections 14 7 New x2 Result Codes 14 8 Appendix A Other I modem Features A 1 Data Over Voice A 1 Protocols Supported by Data Over Voice A 1 Configuring Data Over Voice A 1 Period Dial Modifier A 2 PCSDL vs XMODEM A 2 230 kbps DTE Rate Under...

Страница 8: ...1 Choosing a Serial Cable C 1 Macintosh C 2 Appendix D Warranty D 1 U S Robotics Access Corp Limited Warranty D 1 Terms of the Limited Warranty D 1 What Is NOT Covered By the Limited Warranty D 3 How To Access Your Warranty Services D 4 Notices D 7 FCC Registration D 7 IC Industry Canada D 8 UL Listed Accessory D 9 ...

Страница 9: ......

Страница 10: ...kip directly to Chapter 3 Ordering ISDN Contacting U S Robotics Please contact U S Robotics if you have any questions To do this Contact Contact U S Robotics Technical Support 1 800 231 8770 Use the Fax on Demand service 1 800 762 6163 Download updated I modem x2 code from the U S Robotics Bulletin Board System 847 982 5092 analog 847 734 8612 V 120 ISDN Download updated I modem code http totalser...

Страница 11: ... U S Robotics Software Download SDL application allowing you quick easy access to updates of your Courier s technology The latest upgrades can be obtained on the U S Robotics web site or Bulletin Board System Plug and Play Support for Windows 95 The software for the external and internal Courier has been developed to support Plug and Play as defined by the Plug and Play External and Internal COM D...

Страница 12: ...chronous PPP conversion compression multilink PPP ML PPP You can use TurboPPP to access the Internet or remote local area networks LANs at speeds of up to 128 kbps before compression and up to 512 kbps with compression Rate Adaptation The I modem s support of the V 120 and V 110 protocols allows it to map slower speed asynchronous data to the 64 kbps B channel The I modem s rate adaptation capabil...

Страница 13: ...ction must support V 120 or V 110 Modem and Fax Calls The I modem emulates an analog fax modem allowing you to connect to remote analog modems and fax machines using 3 1 kHz audio format Voice Calls If your I modem has an Analog Device port you can connect a standard analog telephone and use the phone over your ISDN line Be aware that the internal I modem cannot provide ringing voltage through the...

Страница 14: ...es When used with fax capable communications software your Courier auto detects and responds to calls from modems and Group III fax machines using EIA standard Class 1 or 2 0 fax software Data Compression V 42 bis MNP5 Data compression enables throughput of up to 230 4 kbps on analog connections I modems connecting under V 42 or HST error control use V 42bis compression I modems connecting under M...

Страница 15: ...1 6 Courier I modem Getting Started Guide ...

Страница 16: ...es or up to 56 kbps with analog devices before compression Internal I modem There are two versions of the internal I modem The ISDN U Interface with an analog device jack Model U The ISDN S T Interface Model S T External I modem There are two versions of the external I modem The ISDN U Interface with an analog device jack Model U The ISDN S T Interface Model S T External I modem for Macintosh Ther...

Страница 17: ... increase transmission speeds to up to 64 kbps per channel Benefits of ISDN The benefits of ISDN include Increased bandwidth Fewer errors during data transfer Quicker call setups and teardowns The ISDN Basic Rate Interface Physical Appearance The I modem communicates over an ISDN Basic Rate Interface BRI line You must order a BRI line from your local telephone company before you can use your I mod...

Страница 18: ... BRI that adapts the line for ISDN B channels and D channels Though BRI signals are transmitted over an ordinary pair of wires BRI typically contains three channels The channels are created by complex signaling techniques BRI is composed of two 64 kbps B channels and one 16 kbps D channel This Does this B channels Carries or Bears data or voice traffic D channel Sets up and tears down calls B chan...

Страница 19: ...EIA 232 and the S T interface signaling that the NT 1 understands NT 1 Network Termination Unit 1 That ranslates between the short distance signaling used at the S T interface and the longer distance signaling used at the U interface NT 1s also convert from the two wires used for the phone line to the six or eight wires needed for the S T bus How Does the I modem Fit In The I modem needs an NT 1 d...

Страница 20: ...ephone company will install a BRI line at your site You install the I modem in your computer and connect a cable between the I modem and the phone jack Then run the I modem Configuration Manager or send commands to change a few settings Before long you ll be making calls on the ISDN S T Interface Figure 2 6 illustrates how the I modem S T connects your computer to the ISDN Note Some NT 1s contain ...

Страница 21: ...nsparent to your computer and the networking applications running on it You can use TurboPPP to access the Internet or remote local area networks LANs at speeds of up to 128 Kbps before compression and up to 512 Kbps with compression TurboPPP is U S Robotics unique combination of asynchronous to synchronous PPP conversion compression multilink PPP MP PPP and PPP MP PPP spoofing Asynchronous to Syn...

Страница 22: ...DN or analog Bulletin Board Systems BBSs for example For details see Chapter 11 Handshaking Error Control Data Compression and Throughput in the I modem Command Referencemanual V 110 Connections V 120 and V 110 are standards for passing asynchronous data over ISDN B channels which are inherently synchronous To make a connection using V 120 or V 110 the device at the other end of the connection mus...

Страница 23: ...2 8 Courier I modem Getting Started Guide ...

Страница 24: ...telephone numbers called SPIDs If you decide that you would like assistance with the ordering process call the U S Robotics I team at 888 USR ISDN The U S Robotics I team The I team is a subset of U S Robotics Customer Support department that provides assistance with the ISDN ordering and configuring process The I team determines the availability and pricing of ISDN service in your area installati...

Страница 25: ...ce B channel Circuit Switched Voice and Data CSV D Dynamic TEI assignment Multipoint bus configuration No features or special services such as CACH EKTS call forwarding or hunt groups Terminal Type A RJ45 jack RJ11 is acceptable 2 Specify your preferred long distance provider 3 Ask the telephone company which type of central office switch your ISDN line will terminate and which protocol the switch...

Страница 26: ... channel Call types supported on each B channel If the switch does not auto assign TEIs most do then you need one fixed TEI per B channel For this Record the number here SPID 1 SPID 2 DN 1 DN 2 5 If you have an internal I modem continue with Chapter 4 Installing the Internal I modem If you have an external I modem continue with Chapter 5 Installing the External I modem ...

Страница 27: ...3 4 Courier I modem Getting Started Guide ...

Страница 28: ...tible computer with a free interface card slot An ISDN Basic Rate Interface line Communications software An NT 1 and Power Supply I modem S T only Note An NT 1 is a device that terminates the ISDN line and translates between the U interface signaling from the telephone company and the S T interface signaling needed by ISDN terminal devices such as the I modem S T Only I modem S T s require an exte...

Страница 29: ...phone cable Quick Reference card Customer Support card This Getting Started manual I modem Configuration Manager diskette The Connections CD ROM which contains I modem Command Reference Guide RapidComm communications software and manuals Stampede Remote Office Gold software and manuals Special offers Updated I modem INF file ...

Страница 30: ...ting the COM port and IRQ yourself requires a detailed knowledge of the settings of the other adapter cards in your computer If other adapter cards are set to use the same COM port or IRQ conflicts may occur that could result in data loss or lockups First determine whether your computer has a Plug and Play ISA bus Check your computer s documentation to be sure Keep these points about Plug and Play...

Страница 31: ... with jumpers if necessary Step Two Configure your I modem with DIPs if necessary Step Three Insert your I modem Step Four Connect the cables Step One Configuring with Jumpers Your I modem comes configured for Plug and Play which allows Windows 95 to automatically configure itself to work with the I modem Figure 4 1 Jumpers Default Jumper Settings Jumpers ...

Страница 32: ...rk However if your environment has multiple ISDN devices or you are using an NT 1 see the I modem Command Reference manual Windows 95 Users If you are using Window 95 you should not need to change the Plug and Play jumper settings because Windows 95 automatically detects and configures your Courier Other IBM PC Compatible Operating Systems If you are using an IBM PC compatible operating system you...

Страница 33: ...hes You will probably not need to change the DIP switch settings but review this section to be sure The DIP Dual Inline Package switches are located on the bracket of the I modem See Figure 3 7 to learn how to set the switches Figure 4 3 Location of the DIP Switches DIP switches ...

Страница 34: ...emory ROM 2 ON Default Acts on AT commands smart mode OFF Ignores AT commands dumb mode 3 OFF No effect 4 OFF No effect When you power on your computer or reset the I modem the DIP switch settings override the settings you may have made previously using AT commands Note The following AT commands are not changed by a power on or reset and must be changed manually Cn Dn En Qn Vn S0 n S14 n and S67 n...

Страница 35: ...l refer to your computer s user s manual 1 Turn off the computer s power and unplug the computer s power cord Ground yourself 2 Remove the screws that hold on the computer s cover and slide the cover off 3 Find an empty expansion slot that provides enough room to install your Courier 4 Remove the screw that holds on the slot cover and remove the slot cover Save the screw ...

Страница 36: ...nto the slot and press down on the top edge of your Courier until it is seated firmly 6 Using the screw you saved in Step 4 secure your Courier in your computer 7 Replace the cover of your computer and tighten the screws You are now ready to connect the cables ...

Страница 37: ...alog Device port connect an analog device such as a standard telephone now Be aware that the internal I modem does not provide ringing voltage which may prevent normal operation of devices that auto answer such as fax or answering machines I modem Model S T 1 Connect one end of the S T interface cable to an S T port on your NT 1 and the other end to the I modem NT 1 2 Install the NT 1 according to...

Страница 38: ...package such as Windows Terminal HyperTerminal Procomm Plus or RapidComm HyperTerminal is used as an example Every communications program is different consult the documentation that came with your communications program for more information 1 Run HyperTerminal 2 Enter the name of your connection in Name and click OK ...

Страница 39: ...4 12 Courier I modem Getting Started Guide 3 Enter the phone number you want to dial in Phone number and click OK If you only want to test your modem you may enter any number ...

Страница 40: ...Installing the Internal I modem 4 13 4 Change any properties and To do this Click this button Dial a number Dial Test without dialing a number Cancel ...

Страница 41: ...ng Started Guide 5 When the HyperTerminal terminal window appears enter AT and hit enter If your modem is connected and configured properly you will see OK on the terminal screen You are now ready to configure your Courier modem ...

Страница 42: ...Installing the Internal I modem 4 15 ...

Страница 43: ...urier I modem Power adapter Telephone cable Quick Reference card Customer Support card This Getting Started manual The Connections CD ROM which contains Courier I modem Command Reference Guide RapidComm communications software and manuals Stampede Remote Office Gold software and manuals Special offers An updated Courier I modem INF file Note about serial cables You need a serial cable to connect y...

Страница 44: ... about each AA CD NS RD SD DTR MR RTS CTS SYNC ARQ FAX B1 B2 with ISDN V 34 Figure 5 1 Front panel of the I modem O N O F F I O POWER DATA PHONE U Figure 5 2 Rear panel of the I modem Installing Your External I modem To install your external I modem do the following Step One Connect the serial cable Step Two Connect the ISDN cable Step Three Connect the power cable ...

Страница 45: ...ntosh modem port or printer port Refer to your computer s documentation to determine where the serial port is NT 1 I modem ISDNT elephone S TBus U This is a typical Model S T configuration which requires an external NT 1 unit to connect to the ISDN wall jack The I modem Model U configuration is similar but does not require an external NT 1 Instead the I modem Model U has an internal NT 1 and conne...

Страница 46: ... Note Write down the number of the serial port to which you connect your Courier I modem If your serial ports are lettered instead of numbered A is COM1 and B is COM2 If you cannot find a serial port consult the documentation that came with your computer 2 Connect one end of the phone cable to the wall jack and the other end to your Courier I modem port labeled U 3 If you have Model U and a teleph...

Страница 47: ... settings to your I modem and test whether you have a working connection with the central office switch Configuring the I modem Before you can make any calls you need to configure the I modem to work on your ISDN line If you haven t ordered an ISDN line see Chapter 3 Ordering ISDN Service Install and run the Windows Configuration Manager software shipped with the I modem The Configuration Manager ...

Страница 48: ...ed to your computer and powered on 2 Power on your computer and start Windows 3 Insert the Courier I modem Configuration Manager diskette in drive A or drive B 4 Windows 3 x From the Program Manager group s menu bar select File and then Run Windows 95 Click Start and then Run 5 Enter a setup or b setup depending on the drive into which you inserted the diskette The installation program will start ...

Страница 49: ... the diskette from the drive Configuring the I modem 1 Start the I modem Configuration Manager by clicking the ISDN Program icon The following window appears 2 Select the COM Port to which the I modem is connected and then select Open COM Port Once you communicate successfully with the I modem the first ...

Страница 50: ...ose one of the following call types for the Data B channel Your choice applies for both incoming and outgoing calls This call type Allows these types of calls Automatic Service Choice V 120 then analog fax modem V 120 Rate Adaptation V 120 only V 110 Rate Adaptation V 110 only Analog Modem Analog fax modem only Clear Channel Clear channel synchronous Internet Access TurboPPP then analog fax modem ...

Страница 51: ...e All Digits At Once Like a cellular phone press to send dialed number 6 Analog Device Channel Call Type Choose one of the following call types for the Analog Device B channel Your choice applies to outgoing calls only If you want to use Select this call type Higher quality audio 3 1 kHz audio or speech Analog Modem or Fax Lower quality audio Speech 7 Analog Device Channel Service Profile ID Enter...

Страница 52: ...r in this chapter 12 Bus Configuration This field is active only if you select AT T 5ESS Custom as your switch protocol type Explained in Special Considerations for AT T 5ESS Custom later in this chapter 13 Audio Port Volume Controls the volume of the sound from the receiver of a device that s attached to the Analog Device port 0 is quietest and 9 is loudest 4 is the default and is recommended 14 ...

Страница 53: ...nterface is active An active Data Link Layer indicates that the I modem is ready to make or receive calls If the Data Link Layer is Then the I modem Inactive Is not ready to make or receive calls Active Is ready to make or receive calls Active Incorrect SPID Cannot make or receive calls because the central office switch does not recognize the SPID set in the I modem 16 Exit Button When you see the...

Страница 54: ...CT 56000 ARQ DIGITAL V120 CONNECT 64000 ARQ DIGITAL V120 If you don t see one of these messages refer to Chapter 15 Troubleshooting in the I modem Command Referencemanual 4 I modems with Analog Device Jack Make a test voice call When the network connects the call the B1 or B2 LED should flash If you have set up your analog device B channel to use All Digits At Once en bloc dialing you must press t...

Страница 55: ...ax modem and a voice call simultaneously SPIDs DNs Bus Configuration 0 1 Point to Point 1 1 Multipoint 2 2 Multipoint If You Have No SPIDS and Only One DN Make these modifications when entering your line configuration 2 Data Channel Service Profile ID Leave this field blank 3 Data Channel Directory Number Enter your DN Do not include your area code 7 Analog Device Channel Service Profile ID Leave ...

Страница 56: ...le ID Enter your SPID up to 20 digits 3 Data Channel Directory Number Enter your DN Do not include your area code 7 Analog Device Channel Service Profile ID Enter your SPID up to 20 digits This field should be blank if you have only on SPID 8 Analog Device Channel Directory Number Enter your DN Do not include your area code 10 Switch Protocol Type Select AT T 5ESS Custom 11 Incoming Modem Fax Call...

Страница 57: ...ns software in Terminal mode and then use your software to send the I modem AT commands What You Should Know Directory Numbers Directory Numbers DNs take the form of ordinary seven or ten digit telephone numbers Be sure to leave off the area code from your DN Service Profile Identifiers Service Profile Identifiers SPIDs tell the telephone company about any special services and features to which yo...

Страница 58: ...mmands you type go directly through the serial port to the I modem Refer to the manual for your communications software to determine how to change to Terminal mode 4 Set your communications software to use the COM port to which the I modem is connected as well as 8 data bits no parity and 1 stop bit 5 Send the following command all commands surrounded by angle brackets like Enter indicate key pres...

Страница 59: ...ur ISDN service provider to obtain your central office switch and protocol type This switch type Supports this protocol type Northern Telecom DMS 100 National ISDN 1 PVC 2 Custom PVC 0 or 1 AT T 5ESS National ISDN 1 Custom Other for example Siemens EWSD National ISDN 1 The command is AT W n To set this switch protocol type Use this command AT T 5ESS Custom AT W 0 Northern Telecom DMS 100 AT W 1 Na...

Страница 60: ...Example AT S1 84755511110111 Enter b Set the Directory Number DN The command is AT P1 n Example AT P1 5551111 c Set the Terminal Endpoint Identifier TEI if you were assigned one If not continue with step d The default setting is 0 or dynamic TEI assignment The TEI permanently identifies your link with the central office switch The command is AT T1 n If your TEI Use this command Is dynamic AT T1 00...

Страница 61: ...t up the DATA B channel a Set the Service Profile Identifier SPID The command is AT S2 n Example AT S2 84755511120111 b Set the Directory Number DN The command is AT P2 n Example AT P2 5551112 c Set the Terminal Endpoint Identifier TEI if you were assigned one If not continue with step d The default setting is 0 or dynamic TEI assignment The command is AT T2 n If your TEI Use this command Is dynam...

Страница 62: ...u are done configuring your I modem Step Two Checking the Configuration Send ATI12 Enter and check that the settings you made are correct Step Three Saving the Configuration Reset the I modem by sending ATZ Enter or power off the modem and power it on again Sending ATZ is not sufficient Send ATZ Enter Your settings will not take effect until the I modem undergoes this type of reset Note If your ph...

Страница 63: ...nk 8 per second Yellow Searching for U interface I modem Model 1 and 2 only 2 Slow blink 1 per second Yellow Searching for S T interface 3 Slow blink 1 per second Green Physical connection active 4 Green solid Ready to make or receive calls These are error conditions and suggested solutions If NS LED does this This may be the problem Red blink 1 per second Incorrect SPID Send ATI12 Enter and re ch...

Страница 64: ...these codes refer to Chapter 15 Troubleshooting in the I modem Command Reference Special Considerations for AT T 5ESS Custom If your central office switch is an AT T 5ESS that runs the Custom protocol you can use fewer than two SPIDs DNs although this is not recommended Lines with fewer than two SPIDs DNs prevent your making two analog based calls at one time For example with fewer than two SPIDs ...

Страница 65: ...a channel DN Enter your DN do not include your area code For example AT P2 5551111 4a Analog Device channel SPID Leave blank enter AT S1 and press Enter 4bAnalog Device channel DN Enter your DN for example AT P1 5551111 Also decide whether incoming analog fax modem calls are routed to the Analog Device port to be handled by the voice device attached to the Analog Device port or to the Data Port to...

Страница 66: ...511110111 Enter 3bData channel DN Enter your DN do not include your area code For example AT P2 5551111 Enter 4a Analog Device channel SPID Leave blank enter AT S1 and press Enter 4bAnalog Device channel DN Enter your DN for example AT P1 5551111 Enter Also decide whether incoming analog fax modem calls are routed to the Analog Device port to be handled by the device attached to the Analog Device ...

Страница 67: ...u start Windows 95 or Windows 95 will not recognize your I modem What You Need You need Windows 95 with Dial Up Networking installed to configure your I modem for Windows 95 Configuring Your Courier With Plug and Play Plug and Play mode allows Windows 95 to automatically detect your I modem and determine which modem configuration file called an INF file to use Note for internal Courier users If yo...

Страница 68: ...Power on your computer and start Windows 95 Your computer detects new hardware and displays the following window 2 Select Driver from disk provided by hardware manufacturer and click OK to install the INF file that is provided on the root directory D or the correct path of your CD ROM of the Connections CD ROM ...

Страница 69: ...es from to D or the correct path of your CD ROM and click OK to install the INF file Windows 95 displays the following window asking you to choose your I modem type from the list 4 Select the Courier I modem with ISDN V 34 PC Internal or Courier I modem with ISDN V 34 External from the list and click OK Your I modem is now ready to use ...

Страница 70: ...ends that you use the latest version of the following two files from the U S Robotics web site http totalservice usr com or ISDN 847 734 8612 or analog 847 982 5092 BBS This file Does this The I modem software Contains software that contains new feature updates The INF file Helps your computer work more effectively with your I modem ...

Страница 71: ...u can also use Dial Up Networking to access Internet Service Providers ISPs or remote LANs To access your ISP or a remote LAN you must do the following Step One Determine if Dial Up Networking is installed Step Two Install Dial Up TCP IP support Step Three Set up a connection to your ISP Step Four Customize TCP IP settings if necessary Step One Determine if Dial Up Networking is Installed 1 Click ...

Страница 72: ...Up Networking Do this Is listed Go to the section Installing TCP IP Support to install Dial Up Networking Is not listed Go to Step 3 3 Return to the Control Panel and double click on Add Remove Programs to open the Add Remove Programs Properties window ...

Страница 73: ...Windows 95 8 7 4 Click Windows Setup tab ...

Страница 74: ... Double click on Communications to display the Communications window 6 Click on Dial Up Networking to check the box 7 Click OK OK 8 Insert your Windows 95 Setup diskette or CD ROM when you are prompted and Windows 95 installs Dial Up Networking ...

Страница 75: ...el double click on the Network icon to display the following window Determine if the TCP IP Dial Up Adapter is installed IF TCP IP Dial Up Adapter Do this Is not listed Click Add Protocol Microsoft TCP IP OK Insert your Windows 95 Setup diskette or CD ROM when you are prompted and Windows 95 installs TCP IP protocol ...

Страница 76: ...8 10 Courier I modem Getting Started Guide support Is listed Read the section Customize the TCP IP Settings ...

Страница 77: ...etting Up a Connection to Your ISP 1 Click Start Programs Accessories Dial Up Networking 2 Double click Make New Connection 3 Select the correct Courier modem if not already selected 4 Type a name for the connection and click Next ...

Страница 78: ...8 12 Courier I modem Getting Started Guide 5 Type a phone number for the connection and click Next 6 You should see a message indicating that a new connection was created successfully ...

Страница 79: ... to display the following window 8 On the My Connection window click Server Type and deselect the following Log on to Network NetBEUI IPX SPX Compatible 9 Click OK and OK If your ISP Do this Gives you specific IP or server addresses Go to Step Four Customizing TCP IP Settings Does not give you specific IP or server addresses Double click on the icon you just created to dial your ISP ...

Страница 80: ...ed to customize the TCP IP settings Contact your ISP for specific information such as IP address or domain name servers DNS 1 Click My Computer and double click Dial Up Networking icon to display all the connections you can customize 2 Right click the icon you created and select Properties to display the My Connection window ...

Страница 81: ... display the TCP IP Settings window 4 Specify an IP address if needed If your ISP Do this Gives you a specific IP address Click Specify an IP address and enter the IP address provided by your ISP Does not give you a specific IP address Click Server assigned IP address ...

Страница 82: ...server addresses if needed If your ISP Do this Gives you specific server addresses Click Specify name server addresses and enter the server address es provided by your ISP Does not give you specific server addresses Click Server assigned server address 6 Double click your New Connection icon to connect ...

Страница 83: ...hooser The modem initialization string should be AT F1 D0 For instructions about how to set up your Macintosh communications software package visit the U S Robotics Totalservice web site at http totalservice usr com Accessing the Internet Accessing the Internet through an ISP requires the following software MacTCP or Open Transport TCP IP from the Control Panels menu which has probably already bee...

Страница 84: ... the domain name and IP address for one or more domain name servers Note If you don t have domain name server information contact your ISP When you re finished configuring MacTCP restart your Macintosh Installing MacPPP Dialer When you install MacPPP for the first time a PPP icon appears in the MacPPP folder Put the PPP icon in the Extensions Folder in the System Folder and restart your Macintosh ...

Страница 85: ...ck OK 4 Click Config and set your Port Speed the fastest speed for MacPPP is 57 6 kbps phone number and modem initialization string 5 Click Authentication and enter the user name and password your ISP assigned you 6 Click Done Dialing With ConfigPPP In Config PPP click Open Config PPP dials your ISP and establishes your PPP connection ...

Страница 86: ...9 4 Courier I modem Getting Started Guide ...

Страница 87: ... software package Windows Terminal You can use Windows Terminal to test your I modem or you can install the communications software package that is included on the Connections CD ROM Because Windows Terminal only supports speeds up to 19200 bps it is recommended that you use a third party communications software package For instructions about how to set up your Windows 3 x communications software ...

Страница 88: ...nfiguring Your I modem To obtain and install the I modem INF file for Windows NT follow the same steps as Windows 95 users Installing the Latest I modem Software After you obtain the latest I modem INF file copy it to the C WINNT INF subdirectory For more information about Windows NT see the Windows NT documentation or visit the U S Robotics Totalservice web site at http totalservice usr com ...

Страница 89: ...h your I modem is attached in whatever communications software package you are using For instructions about how to set up your MS DOS communications software package see the software documentation or visit the U S Robotics Totalservice web site at http totalservice usr com For Internal Couriers Only You must choose the COM port IRQ and the I O address within the communications software that you us...

Страница 90: ...oftware package visit the U S Robotics Totalservice web site at http totalservice usr com For Internal Couriers Only These are the standard I O address and IRQ settings for each COM port COM Port I O Address IRQ COM1 03F8 IRQ4 COM2 02F8 IRQ3 COM3 03E8 IRQ4 COM4 02E8 IRQ3 Nonstandard COM IRQ settings are done by adding switches command line parameters to the COM SYS or SIO SYS line in CONFIG SYS Fo...

Страница 91: ...are package visit the U S Robotics Totalservice web site at http totalservice usr com These are the standard port names and settings Outgoing Calls Incoming Calls Port IRQ I O Address dev cua0 dev ttyS0 COM1 4 03F8 dev cua1 dev ttyS1 COM2 3 02F8 dev cua2 dev ttyS2 COM3 4 03E8 dev cua3 dev ttyS3 COM4 3 02E8 Use the setserial command to tell Linux about any nonstandard COM IRQ combinations that you ...

Страница 92: ...10 6 Courier I modem Getting Started Guide ...

Страница 93: ...Accept PPP ML PPP calls Dynamic Data Bandwidth Allocation DBA Save money by only using the second B channel when it is need for data transfers and then dropping the second B channel when it is not needed Point to Point Protocol PPP ML PPP Your Courier I modem now supports Originate and Host Mode PPP ML PPP Host Mode ML PPP allows you to set the I modem to accept ML PPP calls Originate Mode allows ...

Страница 94: ...Calls With ML PPP You can make ML PPP calls with any PPP dialer Making an Outgoing ML PPP Call When making an outgoing ML PPP call enter the number of the host If the phone number for two calls is different you must enter both of them They must be separated by an as shown below If only one phone number is given the same number will be dialed for both calls Making an Incoming ML PPP Call to Your I ...

Страница 95: ...Configuring with AT commands 11 3 Regular Connection Without ML PPP Connection With ML PPP ...

Страница 96: ...han the time set in D2 Brings down the second link Important Dynamic Bandwidth Allocation is set on by default To turn off Dynamic Bandwidth Allocation use D0 1 Controlling Dynamic Bandwidth Allocation in ML PPP Use the following D0 settings to control Dynamic Bandwidth Allocation To do this Use this setting Or this setting Enable Dynamic Bandwidth Allocation in ML PPP default D0 0 S68 6 0 Disable...

Страница 97: ...s Down Use the following D4 setting to determine when the I modem should bring down a second link To do this Use this setting Example Determine when the second link should be brought down based on the level of utilization of the existing link D4 n where n equals 1 100 D4 44 Enabling the Tone When the Second Link Comes Up Use the following T settings to enable the tone when the I modem brings up a ...

Страница 98: ...ion This is the default Turbo Mode Compression Turbo Mode Compression allows the I modem to negotiate compression with the remote host and disable compression between the I modem and your application Setting Modes of Compression Use the following K settings to use compression in TurboPPP mode Use this mode of compression Use this setting Pass through Mode K0 Auto Mode Default K1 Turbo Mode K2 U S ...

Страница 99: ...Configuring with AT commands 11 7 I modem supports a 230 kbps DTE rate using ML PPP ...

Страница 100: ...11 8 Courier I modem Getting Started Guide ...

Страница 101: ...cating DIP Switches On the external I modem the DIP switches are on the bottom of the unit Figure 8 1 DIP Switches on the External Courier Default DIP Switches Model U Here are the default settings for the Model U I modem To do this Set DIP Switch To this setting Load FO settings upon reset 1 OFF Load NVRAM settings upon reset ON Default Ignore AT commands 2 OFF Enable AT commands ON Default Note ...

Страница 102: ...12 2 Courier I modem Getting Started Guide ...

Страница 103: ...he figure because their settings are not relevant Figure 8 2 Default DIP Switches for the External Model U Courier Default DIP Switches Model S T If you have Model S T the default DIP switches are the same as in figure 8 2 In addition there are additional default settings DIP switch 1 and 2 are set ON DIP switch 3 through 12 are set OFF Use the following chart to set termination on the Model S T T...

Страница 104: ...n the Internal I modem Locating DIP Switches On the internal I modem the DIP switches are on the end of the unit Figure 8 5 DIP Switches on the Internal Courier Default DIP Switches DIP switches 1 and 2 are set ON DIP switches 3 and 4 are unused DIP Switches ...

Страница 105: ... commands 2 OFF Enable AT commands ON Default Note DIP switches 3 and 4 are unused Jumpers on the Internal I modem Locating Jumpers Your internal I modem is set to Plug and Play You shouldn t have to change this setting however if you have multiple devices connected to your system you may need to change the jumper settings to avoid hardware conflicts Figure 8 8 Jumpers on the Internal Courier Jump...

Страница 106: ...not have any hardware conflicts you do not need to use this section To change jumper settings use tweezers or needle nosed pliers and gently rock the jumper back and forth as you lift Figure 8 9 Jumper Blocks Without Shunts Figure 8 10 Shunt Note Do not grasp the shunts too firmly If you grasp them too firmly you may crush the shunt or damage the modem COM port block IRQ block ...

Страница 107: ...Jumpers for a Specific COM Port or IRQ To set your modem to To set the COM port jumpers to COM 1 COM 2 COM 3 COM 4 Plug and Play Setting Jumpers for a Specific IRQ To set your modem to To set the IRQ jumpers to IRQ 2 IRQ 3 IRQ 4 IRQ 5 IRQ 7 ...

Страница 108: ...ected at 64 or 56 kbps Green blink 1 sec Analog modem or fax call connected Green Voice call connected Off Not connected B2 Green blink 8 sec Digital call connected at 64 or 56 kbps Green blink 1 sec Analog modem or fax call connected Off Not connected AA On Will auto answer calls Blinking Has detected an incoming call Off Will not auto answer calls CD On Has detected a carrier from a remote devic...

Страница 109: ...gnal from your computer Off Has not detected DTR MR On Configurable See Command Reference Manual Flashing Is retraining with a remote device or is in Test mode Off Configurable See Command Reference Manual RTS On Has detected the Request to Send RTS signal from your computer Off Has not detected the RTS signal from your computer CTS On Is sending your computer the Clear to Send CTS Off Is not send...

Страница 110: ...Viewing LEDs 13 3 ...

Страница 111: ...se this command Detemine if x2 is enabled in your modem ATI7 Disable or enable x2 ATS58 Limit the upper speed limit of an x2 connection AT N Limit the lower speed limit of an x2 connection AT U Note New x2 features should be transparent to most users If you are an advanced user see the sections Controlling x2 and Controlling Link Speeds with N and U later in this chapter for detailed information r...

Страница 112: ...ght 19xx 96 U S Robotics All rights reserved Product type US Canada External Options HST V32bis Terbo VFC V34 x2 Fax Options Class 1 Class 2 0 Clock Freq Clock Frequency Eprom 256k Ram 32k Supervisor date Date DSP date Date Supervisor rev x x x DSP rev x x x Serial Number serial number OK Note Dates serial numbers revision numbers and Clock Frequencies may vary The most important line is the Optio...

Страница 113: ...over a 3 1 kHz voice call V2 3 For x2 Symmetric Mode to work our I modem must connect to a modem using x2 Symmetric Mode such as another I modem Note In some areas 3 1 kHz voice calls over ISDN are cheaper than data calls Use the following S58 settings to control x2 To do this Use this command Disable x2 S58 0 1 Force A law mode S58 2 1 Disable Symmetric Mode S58 3 1 Note A law is required in all ...

Страница 114: ... 1 Using Link Speeds Note The default values for N and U are 0 If you change these values you will limit the speeds at which you can connect U S Robotics recommends that you do not alter these values Limiting the Highest Possible Connect Speed The N command allows you to limit the highest possible connect speed If a remote modem attempts to connect to your Courier with x2 at a speed higher than N ...

Страница 115: ...with x2 connects If a remote modem does not connect to your Courier with x2 at a range between the speeds designated by the N and U commands your Courier with x2 will not allow it to connect Note The link speed associated with the U argument cannot be greater than the link speed associated with N argument Use the following table to understand the relationship between U and N commands If U And N Th...

Страница 116: ...hest 0 21600 11 45333 22 300 1 24000 12 46666 23 1200 2 26400 13 48000 24 2400 3 28800 14 49333 25 4800 4 31200 15 50666 26 7200 5 33600 16 52000 27 9600 6 33333 17 53333 28 12000 7 37333 18 54666 29 14400 8 41333 19 56000 30 16800 9 42666 20 57333 31 19200 10 44000 21 64000 32 Table 14 3 Link Speeds and Indexes Note For x2 mode links N and U are used to constrain the speed of the higher speed dir...

Страница 117: ...es not support x2 Channel is x2 capable but feature is not installed You have not purchased x2 Your Courier may be connected to the public network via a PBX or other telephone equipment with analog to digital and digital to analog conversions Contact your telephone equipment vendor for information about obtaining pure analog service Due to extra analog to digital conversions performed by some PBX ...

Страница 118: ... 185 CONNECT 37333 ARQ 186 CONNECT 37333 x2 187 CONNECT 37333 ARQ x2 188 CONNECT 41333 189 CONNECT 41333 ARQ 190 CONNECT 41333 x2 191 CONNECT 41333 ARQ x2 192 CONNECT 42666 193 CONNECT 42666 ARQ 194 CONNECT 42666 x2 195 CONNECT 42666 ARQ x2 196 CONNECT 44000 197 CONNECT 44000 ARQ 198 CONNECT 44000 x2 199 CONNECT 44000 ARQ x2 200 CONNECT 45333 201 CONNECT 45333 ARQ 202 CONNECT 45333 x2 203 CONNECT ...

Страница 119: ... ARQ 214 CONNECT 49333 x2 215 CONNECT 49333 ARQ x2 216 CONNECT 50666 217 CONNECT 50666 ARQ 218 CONNECT 50666 x2 219 CONNECT 50666 ARQ x2 220 CONNECT 52000 221 CONNECT 52000 ARQ 222 CONNECT 52000 x2 223 CONNECT 52000 ARQ x2 224 CONNECT 53333 225 CONNECT 53333 ARQ 226 CONNECT 53333 x2 227 CONNECT 53333 ARQ x2 228 CONNECT 54666 229 CONNECT 54666 ARQ 230 CONNECT 54666 x2 231 CONNECT 54666 ARQ x2 232 C...

Страница 120: ...34 CONNECT 56000 x2 235 CONNECT 56000 ARQ x2 236 CONNECT 57333 237 CONNECT 57333 ARQ 238 CONNECT 57333 x2 239 CONNECT 57333 ARQ x2 240 CONNECT 64000 241 CONNECT 64000 ARQ 242 CONNECT 64000 x2 243 CONNECT 64000 ARQ x2 Table 14 4 New Result Codes There is a complete list of result codes in your I modem Command Reference ...

Страница 121: ... Regional Bell Operating Companies usually charge less for analog calls than digital calls DOV allows users to pay a lower fee while taking advantage of the digital transmission Protocols Supported by Data Over Voice You can use Data Over Voice with V 120 and Multilink PPP calls Configuring Data Over Voice Use the following V2 settings to control Data Over Voice To force Use these commands V 120 D...

Страница 122: ...ftware download using PCSDL As a result U S Robotics recommends using PCSDL under DOS only or performing software download using the XMODEM file transfer protocol as described in the Courier I modem Command Reference in section 17 2 230 kbps DTE Rate Under Windows If you are using a Windows 95 terminal program you will be unable to set your transmission speed to 230 kbps 230 kbps in Internal I mod...

Страница 123: ...alog local calls and bill digital calls by usage at a metered rate Although all long distance calls are typically metered long distance digital calls tend to be slightly more expensive than long distance analog calls To do this Use this setting Prevent the I modem from behaving like a fax modem over digital connections S68 0 1 When you use this setting and the I modem detects an analog device over...

Страница 124: ...A 4 Courier I modem Getting Started Guide ...

Страница 125: ... nonstandard schemes The following schemes are supported ISDN This standard Supports ITU T Q 921 ISDN data link layer ITU T Q 931 I 451 ISDN call control signaling variants AT T 5ESS Custom Northern Telecom DMS 100 National ISDN 1 National ISDN 2 ITU T V 120 I 463 Encapsulates asynchronous or synchronous data for transmission over the ISDN at 56 or 64 kbps ITU T V 110 I 462 Encapsulates asychronou...

Страница 126: ...ronous asymmetrical 450 bps back channel with automatic handshake adjustment to 300 bps TCM and QAM 4800 bps asynchronous asymmetrical 450 bps back channel with automatic handshake adjustment to 300 bps QAM ITU T V 32 bis 14 4 12 kbps 9600 7200 bps asynchronous TCM 4800 bps asynchronous QAM ITU T V 32 9600 bps asynchronous TCM 4800 bps asynchronous QAM ITU T V 22 bis 2400 bps asynchronous QAM Bell...

Страница 127: ... T V 54 Digital and remote digital loopback testing ITU T V 25 bis Dialing and answering method for automatic calling and or answering equipment Fax Your I modem provides Group III compatibility when controlled by Class 1 or Class 2 0 fax software In addition your I modem adheres to the following standards This Supports TIA EIA 578 Service Class 1 Asynchronous Facsimile DCE Control Standard TIA EI...

Страница 128: ...o 8 bit word length no parity and 1 stop bit Word Length Parity 1 Bit Stop Bits 7 Even Odd 1 8 None 1 Flow Control Buffers Variable sizes Command Buffer 56 characters excluding the AT prefix Carriage Return and spaces Test Options Remote digital loopback digital loopback test pattern and dial test Failed Call Timeout 60 second default programmable 2 255 sec Answer Tone Timeout 60 seconds Answer To...

Страница 129: ...es that are attached to the I modem Because a typical telephone has a REN value of 0 6 the I modem can support up to five phones connected through the Analog Device port over short loops Power Consumption At Normal Peak 5 V 800 mA 1500 mA 12 V 250 mA 350 mA 12 V 20 mA 50 mA Serial Ports Most computers provide a DB 25 or DB 9 port that conforms to the EIA 232 standard If you are connecting your I m...

Страница 130: ...B 6 Courier I modem Getting Started Guide The EIA 232 Interface The I modem s serial port is factory set to signal according to the EIA 232 standard Figure B 1 Signals at your Courier s Serial Port ...

Страница 131: ...or your I modem to operate asynchronously follows DB 25 DB 9 Supports this signal Pin Pin Function 2 3 Transmitted Data 3 2 Received Data 7 5 Signal Ground 20 4 Data Terminal Ready Flow Control Requirements If your computer and software support Clear to Send and you wish to use Transmit Data hardware flow control H1 Pin 5 DB 25 or Pin 8 DB 9 is required If your computer and software support Reques...

Страница 132: ...ware handshaking cable to get the most reliable performance Figure B 3 Macintosh Computer Cable Pinout Mac Pin Mac Pin Description Mode m Pin Modem Pin Description 1 Output Handshake 4 20 Request to Send and Data Terminal Ready 2 Input Handshake 5 Clear to Send 3 Transmit Data 2 Transmit Data 4 Ground 7 Ground 4 8 Ground to Received Data 5 Received Data 3 Received Data ...

Страница 133: ...Technical Information B 9 Serial Ports Macintosh modem These are the signals generated or accepted by your I modem s serial port Figure B 4 Pinouts for your Courier s Serial Port ...

Страница 134: ...B 10 Courier I modem Getting Started Guide ...

Страница 135: ... of cable to purchase If you have a serial connector in the back of your computer that looks like this You need to purchase this type of shielded serial connector DB 25 female connector to DB 25 female connector DB 25 female connector to DB 9 female connector Notes for Macintosh Users For top performance your serial port should support speeds of 115 2 kbps Most Macintosh serial ports support 57 6 ...

Страница 136: ...card Notes for Mainframe Users If you plan to connect your Courier I modem to a mainframe computer or use your Courier to dial in to a mainframe computer refer to Synchronous Applications in your Courier I modem Command Reference manual Macintosh These are the signals generated or accepted by the I modem s serial port Figure C 2 Pinouts for the Courier s Serial Port ...

Страница 137: ... in materials or workmanship during the Limited Warranty period identified in the chart below which is effective on the date of purchase During the Limited Warranty period U S Robotics will repair or replace the product with the same or a similar model which may be a remanufactured unit at U S Robotics option without charge for either parts or labor Replacement parts assume the remaining warranty ...

Страница 138: ...r 90 days effective upon purchase 2 years Factory Repair Replacement TOTALswitch Product Family For 90 days effective upon purchase For 90 days effective upon purchase 3 years Factory Repair Replacement Allegra Modem Pool and NETServer Product Families For 90 days effective upon purchase For 90 days effective upon purchase 2 years Factory Repair Replacement Allegra Courier and DataBurst Product Fa...

Страница 139: ...orized service provider THIS LIMITED WARRANTY DOES NOT GUARANTEE YOU UNINTERRUPTED SERVICE REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS LIMITED WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANT OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE U S ROBOTICS SHALL ...

Страница 140: ...l and NetWare are registered trademarks of Novell Inc How To Access Your Warranty Services Telephone Support Warranty For 90 days effective upon product purchase you will have access to our technical support analysts To obtain telephone support under the conditions of this Limited Warranty call the appropriate U S Robotics number North America 1 800 231 8770 toll free Monday Friday 7 a m 8 p m Cen...

Страница 141: ...ware Updates from the U S Robotics Network Systems Division web site http totalservice usr com Software Firmware Update Options Customers who require Software Firmware updates beyond 90 days from the purchase date will be referred to a U S Robotics sales representative to establish a service contract if desired Hardware Support Warranty During the applicable Limited Warranty period if U S Robotics...

Страница 142: ...7700 Monday Friday 9 a m 7 p m Central European Time All Other Locations 1 847 797 6600 Monday Friday 7 a m 8 p m Central Standard Time Shipping Checklist Did You Include Your Name Your Company s Name Return Shipping Address A Contact Telephone Number Serial Number and Part Number both are contained within the barcode attached to the unit Brief Problem Description ...

Страница 143: ...ion printed above If your Courier is malfunctioning it may affect the telephone lines In this case disconnect your Courier until the source of the difficulty is traced FCC Notice Radio and Television Interference This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protec...

Страница 144: ...e operational and safety requirements The department does not guarantee the equipment will operate to a user s satisfaction Before installing this equipment make sure you are permitted to connect it to the facilities of the local telecommunications company You must also install the equipment using an acceptable method of connection In some cases you may also extend the company s inside wiring for ...

Страница 145: ...Warranty D 9 UL Listed Accessory Your internal Courier modem is a UL listed accessory It must be used with a UL listed computer ...

Страница 146: ...D 10 Courier I modem Getting Started Guide ...

Страница 147: ...6 authentication 9 3 Automatic Service Choice 2 7 6 4 B Basic Rate Interface 2 2 Bellcore capability packages 3 2 Bellcore SR NWT 1953 7 6 BRI 2 2 BRI line signals 2 4 bus configuration 6 6 C cable DB 25 to DB 9 B 7 hardware handshaking B 8 serial 5 1 call routing incoming modem fax 6 6 7 9 call type Analog Device Channel 6 5 Data Channel 6 4 7 6 CD LED off 13 1 13 2 CD LED on 13 1 13 2 central of...

Страница 148: ...DUN 8 4 dynamic TEI assignment 3 2 E EIA 232 B 6 error control protocols B 3 Exit button 6 7 expansion slot 4 8 F fax 1 5 protocols B 3 fax on demand service 1 1 FCC notice D 7 flash memory 1 2 flow control B 7 Free PPP 9 1 H hardware handshaking cable 9 1 B 8 highest possible connect speed 14 4 how to tell if x2 is enabled in your modem 14 2 how to use this guide 1 1 I I11 14 7 I7 14 1 IC notices...

Страница 149: ...on 6 9 7 8 Point to Point Protocol PPP 9 1 possible connect speeds 14 5 power consumption B 5 PPP dialer 9 1 PPP MP PPP spoofing 2 7 printer port 5 3 5 4 protocols B 1 R RapidComm 4 2 5 1 10 3 RD LED flashing 13 2 RD LED off 13 2 remote configuration 1 2 REN B 5 Ringer Equivalence B 5 routing incoming modem calls 7 9 RS LED off 13 2 RS LED on 13 2 S S58 14 1 Save button 6 6 SD LED flashing 13 2 SD...

Страница 150: ... S Robotics on Compuserve 1 1 U S Robotics web site 1 1 UART 4 3 Universal Connect 2 7 6 4 UNIX 10 1 using DIP switches 12 4 using MS DOS 10 3 using this guide 1 1 V V protocols B 1 V 110 rate adaptation 2 7 6 4 V 120 rate adaptation 2 7 6 4 V 34 B 2 V 42bis compression 1 5 V Everything defined 1 5 verifying operation 4 11 Viewing LEDs 13 1 Voice Data switch 5 2 volume control 5 2 volume of audio ...

Страница 151: ...Index ...

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