Courier V.Everything External Modem: Getting Started

4/96 p/n 1.024.492

1996 U.S. Robotics Access Corp. 8100 North McCormick Blvd. Skokie, IL 60076-2999 All Rights Reserved
U.S. Robotics and the U.S. Robotics logo are registered trademarks of U.S. Robotics Access Corp. V.Fast Class and V.FC are trademarks of Rockwell International. Any trademarks, tradenames, service marks or service names owned or registered by any other company and used in this manual are the property of their respective companies. 1996 U.S. Robotics Access Corp. 8100 N. McCormick Blvd. Skokie, IL 60076-2999 USA

Table of Contents

About This Manual iii We Welcome Your Suggestions...iii Chapter 1 The Courier 1-1 Courier Controls, Displays, and Connectors..1-3 Status Indicators...1-4 Features....1-5 Chapter 2 Installing the Courier 2-1 What You Need...2-1 Package Contents...2-3 Installing the Courier...2-4 Setting the DIP Switches...2-4 Powering On the Courier...2-6 Chapter 3 Communicating with the Courier 3-1 Windows 95....3-1 Windows 3.x...3-5 DOS....3-6 OS/2....3-6 Mac OS....3-7 Windows NT...3-7 UNIX/Linux/AIX...3-10 Mainframe OSs...3-10 Testing the Courier...3-11 Chapter 4 Other Features 4-1 Volume Control...4-1 The Voice/Data Switch...4-2 Getting Information About Calls...4-6 MI/MIC Operations...4-7 Chapter 5 Setups for Common Windows Software Packages 5-1
Appendix A The Serial Port A-1 The EIA-232 Interface...A-1 For Macintosh Computers..A-3
Appendix B Technical Specifications B-1 Standards Compatibility... B-1 Appendix C Warranty and Notices C-1 Limited Warranty...C-1 Notices....C-3

About This Manual

This manual explains how to set up and start using your Courier V.Everything External Modem. Refer to the Command Reference manual, also included with the Courier, for detailed information about using advanced features.
We Welcome Your Suggestions
Weve made every effort to provide you with useful, accurate information. If you have any comments or suggestions about these materials, please let us know. Voicemail: Email: (847) 933-5200 sysdocs@usr.com

Chapter 1 The Courier

The Courier V.Everything External Modem makes any computer or terminal with an EIA/RS-232 serial port (or a Macintosh serial port) capable of exchanging data with modems or fax machines over standard, analog telephone lines at speeds of up to 33.6 Kbps.

Using the Courier

The most common uses of the Courier modem are for accessing the Internet or online services, accessing corporate networks remotely, calling bulletin board systems (BBSs), and for sending or receiving facsimiles or files. Using the Courier always requires some kind of communications software. The software required differs depending on what youre trying to do.

Accessing the Internet

To access the Internet, you need to set up an account with an Internet service provider in your area. Often, Internet service providers supply you with the software youll need. In other cases, support for Internet access is built in to your computers operating system, as is the case with Windows 95. The software needed to access the Internet is called a TCP/IP protocol stack. Your TCP/IP protocol stack must provide a dialing application that is capable of sending data over a serial line using the Point-to-Point protocol (PPP) or the Serial Line Internet Protocol (SLIP).

The Courier

Calling Online Services
Each online service, such as America Online or CompuServe, provides its own customized communications software package. A couple of these packages are included with the Courier. These packages do the dialing and guide you through the steps of registration.
Accessing Corporate Networks Remotely
Dialing in to a remote network requires remote access software. When you dial in to a network, the software makes your remote computer appear to the network as locally attached. You can then use your network just as you would if you were there: send mail, print files, and access LAN drives. A remote access package is included with the Courier.
Calling Bulletin Board Systems (BBSs)
Calling a BBS requires communications software that does terminal emulation. The software should also support common, standard file transfer protocols, such as YMODEM and ZMODEM. A communications software package is included with the Courier.
Sending Facsimiles or Files
Most communications software packages support file transfers and many support fax operations. You can use fax-capable software to call fax machines or other fax modems and send facsimiles.
Courier Controls, Displays, and Connectors
These figures show the controls, displays, and connectors on the Courier and indicate where to find more information about each.

Voice/Data Switch

SEE PAGE 4-2

SYNC ARQ/ FAX

VOICE/DATA

COURIER

V.EVERYTHING with V.34

Status LEDs

SEE PAGE 1-4

Volume Control

SEE PAGE 4-1
Figure 1-1. The Courier V.Everything Modem (Front).

To Telephone

SEE PAGE 2-4

To Wall Jack

Power Switch

SEE PAGE 2-6

To AC Power

To Computer

SEE PAGES 2-4 and A-1
Figure 1-2. The Courier V.Everything Modem (Back).

Status Indicators

The Courier displays its status using 12 light-emitting diodes (LEDs) that are visible from the front. Table 1-1. The Courier's Status Indicators.
HS On Off AA On Blinking Off CD On Off OH On Off RD Flashing Off SD Flashing Off TR On Off MR On Flashing Off RS On Off CS On Off High Speed 4800 bps or faster connection. Once on, remains on until reset. The Courier has not made a 4800 bps or faster connection since last reset. Auto Answer Status Auto-answer on. Incoming call detected. Auto-answer off. Carrier Detect Status Carrier detected from remote device, or carrier detect forced on (using DIP switch 6). Carrier not detected. Off Hook The Courier has control of the line. The Courier does not have control of the line. Received Data Status The Courier is sending data to your computer. Idle. Send Data Status The Courier is receiving data from your computer. Idle. Data Terminal Ready Status DTR signal received from your computer, or DTR is forced on (using DIP switch 1). DTR not detected. Modem Ready The Courier is powered on. The Courier is retraining with a remote device or is in test mode. The Courier is powered off. Request to Send Status RTS signal received from your computer. RTS signal not detected. Clear to Send Status The Courier is sending your computer the CTS signal. The Courier is not sending your computer the CTS signal.

continued

SYN On Blinking Off ARQ/FAX On Flashing Blinking Off
Synchronous Status The Courier is in synchronous mode. Dial security is active. The Courier is not in synchronous mode/dial security not active. Error Correction/Fax Error correction is active. The Courier is retransmitting data to the remote modem. The Courier is in fax mode. Error correction not active/not retransmitting data/not in fax mode.

Features

33.6 Kbps Connectivity
The Courier contains software that enables 31.2 and 33.6 Kbps connection rates, as well as improves throughput at lower speeds. While line conditions may not always allow for 33.6 Kbps connections, the new software makes it more likely that your Courier will achieve and maintain 28.8 Kbps connections. It can add up to 4800 bps to the average V.34 connection rate. Selective Reject Selective Reject is an optional part of the ITU V.42 (LAPM) specification. This feature improves performance on noisy lines by reducing the amount of overhead incurred when the protocol must resend data due to errors. When selective reject is active, only the frame that contained the error is resent, instead of the frame plus all of the following unacknowledged frames. You can disable selective reject by changing a setting in S-Register 51 (see Appendix A, Alphabetic Command Summary, in the Courier Modems Command Reference manual). Attaining Speeds Above 28.8 Kbps V.34 connections at 21.6, 24.0, and 26.4 Kbps are common. To get connections of 28.8, 31.2, and 33.6 Kbps, line quality must be pristine end-to-end. In addition, 31.2 and 33.6 Kbps connection rates are possible only when the device to which you are
connecting also runs software that supports speeds above 28.8 Kbps. If you are curious about the role that line quality plays in attaining and maintaining high speed connections, and want to learn what you can do to improve connections, request the following document from our Fax on Demand service: Phone Line Quality and High Speed Connections. The Fax on Demand number is (800) 762-6163.

V.Everything

The Courier provides full support of the V.34 standard, V.Fast Class, V.32 terbo, and many other modulation schemes, spanning the range of speeds between 33.6 Kbps and 300 bps. We call this unique combination of abilities V.Everything. See the Compatibility section in Appendix B, Technical Specifications, for details.

Flash ROM Upgradability

Courier modems are software-upgradable using XMODEM file transfers, allowing you quick, easy access to updates of the Couriers technology. See Chapter 17, Upgrading the Couriers Software, in the Courier Modems Command Reference manual.

Dial Security

The Couriers dial security functionality is part of its operating software, which allows you to control access at a modem-tomodem level instead of using software that runs on the host computer. With Dial Security, you can prevent unauthorized access to a system through the use of password prompting and dialback. Refer to Chapter 9, Dial Security, in the Courier Modems Command Reference manual.

Dedicated- and Leased-Line Support
The Courier does not need to be connected to the public switched telephone network. You can connect a standard telephone cable between the Courier and another modem and make connections without even dialing. You can also connect the Courier to a line that you lease from the telephone company. See Chapter 12, Dedicated/Leased Line and Synchronous Applications, in the Courier Modems Command Reference.
Chapter 2 Installing the Courier

What You Need

A Computer or Terminal with a Serial Port
The Courier is compatible with any computer or terminal that provides a serial port with an EIA-232 interface. See Appendix A, The Serial Port, for details. For top performance, your serial port must support speeds of 115.2 Kbps. For IBM-compatible PCs, make sure your computer has a 16C550 UART. Check your computers documentation for details.

An Analog Telephone Line

The Courier requires a standard, analog telephone line. Do not connect the Courier to a digital telephone line. Digital lines are commonly used in office buildings and hotels. If you are unsure whether your line is analog or digital, ask a network administrator or your local telephone company.

Communications Software

You must configure and run a communications software package in order to make the Courier work. The Courier is shipped with a DOS/Windows communications software package.

Installing the Courier

A Serial Cable
Because there are a variety of connector types that different computers require, a serial cable is not provided with the Courier. See the next section, Choosing a Serial Cable, for guidelines.

Choosing a Serial Cable

Check the back of your computer for a serial port. Serial ports may be labeled with the word COM or RS-232 or with symbols such as IOIOI, , or. Refer to your computers documentation to be sure.

DB-25, Male

DB-9, Male
8-pin Mini-DIN (Macintosh)
Figure 2-1. Typical Serial Ports.
Depending on what kind of serial port is on your computer, obtain a serial cable with a connector that will fit (either a female DB-25, female DB-9, or a male 8-pin Macintosh serial connector). The Couriers end of the serial cable must be a male DB-25 connector. For a Macintosh, you need a hardware handshaking cable.

Using CommandsATD, ATA

If your Voice/Data switch is set for a function other than Voice/Data operations and you don't wish to change it, use AT commands.
Make a voice call to the remote user (or have the remote user call you). You must both use telephones that are connected to the PHONE port of your modems.
If you are to originate the connection, type the following command: ATD <Enter> NOTE: Be sure the modem is not set to X2, X4, X6 or X7, or it will return the NO DIAL TONE result code and hang up.
The remote user should type the answer command: ATA <Enter> If the remote modem also has handset exclusion, leave both phones off hook in case you wish to switch back again to voice after your data transfer. If the remote modem doesn't have handset exclusion, switching back to voice may not be successful. If you don't want to switch back to voice later, hang up both phones as soon as the modems go off hook.
Changing the Function of the Voice/Data Switch
Use Register S32 to set the voice/data switch for the function you desire. The default is S32=1pressing the switch forces the modem off hook in Originate mode. Holding the switch in when you power on the modem causes it to perform a power-on self-test. NOTE: Some of the applications listed below require preconfiguration. Review the Chapter (from Table 4-1) in the Courier Modems Command Reference before assigning the Voice/Data switch function.
Table 4-1. Voice/Data Switch Commands.
S32 Value 8 9* Voice/Data Switch Function Disabled Voice/DataOriginate Mode Voice/DataAnswer Mode Redial Last Number Dial Number Stored at position 0 Auto Answer On/Off Toggle Reset Modem Initiate Remote Digital Loopback Busy Out the Phone Line Toggle Execute Stored Command Related Command _ ATD (Chapter 3) ATA (Chapter 3) ATDL (Chapter 3) ATDS0 (Chapter 3) ATS0=0 or 1 (Chapter 3) ATZ (Chapter 4) AT&T6, S16=8 (Chapter 15) _ AT&ZC=s (Chapter 4)
* The modem is shipped from the factory set at S32=9. If a command string has been stored (&ZC=s), the Courier sends the stored command string when you push the Voice/Data switch. If no command string is stored, the Courier still reports that S32=9, but actually behaves as if it is set to S32=1, Originate mode.
You can program the voice/data switch to execute a stored command string when pressed. The following example assigns a command string that displays the link diagnostics screen when you press the voice/data switch. AT&ZC=I6 <Enter> Set the voice/data switch function to execute stored command string by setting Register S32 to 9 with the following command: ATS32=9 <Enter> Note that you can reset the voice/data switch at any time to one of the other available functions. Additionally, you can overwrite the stored command string with a new one at any time. Once you've stored your command string and set Register S32, press the Voice/Data switch whenever you want the Courier to send the command string.

10 Replace the modem and reconnect the
CAUTION: When you power on the modem there will be potentially hazardous voltage, particularly near the phone jacks. Do not touch the board when the power is on.

11 Power on the modem.

Check to see that the Off Hook (OH) status light goes on. If you dialed a number, listen for an answer tone from the remote modem. Then drop the DTR signal. The modem should go on hook and the OH status light should go off.
12 When you are sure the equipment is working correctly,

reassemble the Courier.

Troubleshooting
If the Courier does not respond to MI/MIC closure, or if the Courier fails to go back on hook when the computer or terminal drops the Data Terminal Ready (DTR) signal, your phone equipment probably reverses MI/MIC polarity. You can solve this problem by reversing the modem's MI/MIC wiring. Do this by resetting the two jumpers on the printed circuit board. Follow the steps from the previous section. This time, set the jumpers as follows:
If you still have difficulty, there may be a problem with the phone cable or with your hardware.
Chapter 5 Setups for Common Windows Software Packages
If you are running one of the following software packages, follow the steps given to configure it for use with the Courier. America Online v2.0 NetManage Chameleon v4.5 pcAnywhere v2.0 for Windows ProComm Plus v2.0 for Windows Prodigy Trumpet Winsock WinCIM (for CompuServe) WinFax Pro 4.0
These instructions are valid as of the printing of this manual and may not apply to future releases of the software packages. If you need further help, or help with a software package that is not listed here, try our fax-on-demand service (at 800-762-6163 or 847-676-1598) or our BBS (at 847-982-5092). Request document 10000 for a list of our technical support documents.

America Online 2.0

From the America Online - Welcome window, choose Setup. From the Network & Modem Setup window, select Setup Modem. From the Modem Selection and Customization window, select the COM port that the Courier is using, and choose USRobotics Courier HST Dual Std/PC FAX w/ASL (v2.0) as your modem. Then select Edit Commands.
Setups for Common Windows Software Packages
The following window will appear. Change the Setup Modem String to match:
Select OK, then OK, then OK.

NetManage Chameleon 4.5

You should know in advance which Internet service provider (for example, PSINet or NETCOM) you will be using. NetManage provides a number of configuration templates for many popular Internet service providers. The settings recommended here are the Courier-specific ones only.
Click Setup | Communications | Port. Two settings will be specific to your setup: Baud Rate: 115200 bps is recommended, but only if you have a 16550 UART. The UART is a computer chip that controls the transmission and reception of signals through your computers serial port. Check your computers manual to be sure - slower UARTs, like 16450 or 8250, will limit speeds to 19200 bps. Connector: Select the COM port to which the Courier is attached.

Click Setup | Communications | Modem. Select U.S. Robotics Courier Dual Standard.
pcAnywhere 2.0 for Windows
From the Smart Setup window, go to the Your Modem area and select USRobotics Courier HST Dual Standard.
Select the serial port and the protocol running on the network into which youll be dialing, and then select OK.
ProComm Plus 2.0 for Windows
Double-click on the PROCOMM PLUS icon. Select Setup, and then Setup. Select Data Modem/Connection, and then Connection Setup as shown in the following window:
Select Install New Modem or Connection. Under AutoDetect, select Start Search.
After the search is complete, go to the Modems list and select US Robotics Dual Standard 28800, and then select OK.

Prodigy

Start Prodigy. From the Prodigy SIGN-ON window, select Comm Options Setup. From the Set Up window, select a Modem Speed of 9600 bps and select the Communications Port that the Courier is using; then select OK.

Trumpet Winsock

From Windows, double-click the Trumpet Winsock icon. Select Dialler, and then Edit Scripts. Open the LOGIN.CMD file. Change these lines: output AT&F1\13 input 10 OK\n output atdt<phone number to dial> Exit and save the changes you made. From File | Setup, under SLIP Port, enter the COM port number that the Courier is using, its Baud Rate, and check Hardware Handshake. Youre now ready to call your Internet service provider. Select Dialler | Login.

Win CIM (CompuServe)

From Windows Main, double-click on Control Panel. From Control Panel, double-click on Ports. Set the COM port that the Courier is using to 19200 baud rate and Hardware flow control. Start the WinCIM program, and select Special and then Session Settings. Make sure that you choose the COM port that the Courier is using and set the baud rate to 19200. From the Special pull-down menu, select Modem Control Strings. Your modem type should be Current and Initialize should show this string: AT&F&B1&H1&R2&A3&K3X4^M Reset should show &F, Connect should show CONNECT, and Suffix should show ^M.

WinFax PRO 4.0

During installation, you are asked the following question: Do you want Setup to test COM ports for a fax device? Select Yes. When the following screen appears, choose as the Model U. S. Robotics, Inc Courier Dual Standard FAX, and then select Continue.

Appendix A The Serial Port
Most computers provide a DB-25 or DB-9 port that conforms to the EIA-232 standard. If you are connecting the Courier to a Macintosh computer, see the section For Macintosh Computers.

The EIA-232 Interface

The Couriers serial port is factory set to signal according to the EIA-232 standard:

DB-25 Connector (Female)

Figure A-1. Signals at the Courier's Serial Port.

The Serial Port

Wiring a DB-25 to DB-9 Cable
DB-9 connectors for PCs should be wired at the computer end of the cable as shown below.
DB-25 Connector (Male) DB-9 Connector (Female)

Minimum Requirements

Some computer/terminal equipment supports only a few of the Couriers EIA-232 signals. The minimum required for the Courier to operate asynchronously follows:
DB-25 Pin DB-9 Pin Function Transmitted Data Received Data Signal Ground 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 Request to Send and you wish to use Received Data hardware flow control (&R2), Pin 4 (DB-25) or Pin 7 (DB-9) is required.

For Macintosh Computers

If youre connecting the Courier to a Macintosh computer, we strongly recommend that you purchase a Hardware Handshaking cable to get the most reliable performance.
DB-25 Connector (Male) Macintosh 8-pin DIN Connector (Male) 2 5

Mac Pin 4,8 5

Mac Pin Description Output Handshake Input Handshake Transmit Data Ground Ground to Received Data Received Data -

Modem Pin 4,3

Modem Pin Description Request to Send and Data Terminal Ready Clear to Send Transmit Data Ground Received Data
Appendix B Technical Specifications

Standards Compatibility

The Courier uses multiple standard data communications protocols and is also compatible with many nonstandard schemes. NOTE: The International Telecommunication Union (ITU-T) was formerly the International Telegraph and Telephone Consultative Committee (CCITT).

Modulation

ITU-T V.34 33.6/31.2/28.8/26.4/24/21.6/19.2/16.8/14.4/12 Kbps; 9600/7200/4800 bps asynchronous Trellis Coded Modulation (TCM) 28.8/26.4/24/21.6/19.2/16.8/14.4 Kbps asynchronous Trellis Coded Modulation (TCM) 21.6/19.2/16.8/14.4/12 Kbps; 9600/7200 bps asynchronous Trellis Coded Modulation (TCM); 4800 bps asynchronous Quadrature Amplitude Modulation (QAM) 16.8/14.4/12 Kbps; 9600/7200 bps asynchronous, asymmetrical, 450 bps back channel with automatic handshake adjustment to 300 bps Trellis Coded Modulation (TCM) and Quadrature Amplitude Modulation (QAM); 4800 bps asynchronous, asymmetrical, 450 bps back channel with automatic

V.FC V.32terbo

Technical Specifications
handshake adjustment to 300 bps Quadrature Amplitude Modulation (QAM). ITU-T V.32bis 14.4/12 Kbps; 9600/7200 bps asynchronous Trellis Coded Modulation (TCM); 4800 bps asynchronous Quadrature Amplitude Modulation (QAM) 9600 bps asynchronous, Trellis Coded Modulation (TCM); 4800 bps asynchronous, Quadrature Amplitude Modulation (QAM) 2400 bps asynchronous, Quadrature Amplitude Modulation (QAM) 1200 bps (also V.22) asynchronous, Differential Phase Shift Keying (DPSK) 1200 bps asymmetrical with 75 bps back channel with Frequency Shift Keying (FSK), used by some U.K. and European phone systems. 300 bps (ITU-T V.21 optional) asynchronous, Frequency Shift Keying (FSK)

ITU-T V.32

ITU-T V.22bis Bell 212A ITU-T V.23

Bell 103

Error Control, Data Compression, Testing, and Dialing
ITU-T V.42 MNP HST ITU-T V.42bis ITU-T V.54 ITU-T V.25bis LAPM error control, 1200 bps and higher Levels 2, 3 and 4 error control, level 5 data compression, 1200 bps and higher Asymmetrical mode, at 16.8/14.4/12 Kbps; 9600/ 7200/4800 bps, 450/300 bps back channel Data compression, 1200 bps and higher Digital and remote digital loopback testing Dialing and answering method for automatic calling and/or answering equipment.
The Courier provides Group III-compatibility when controlled by Class 1 or Class 2.0 fax software. In addition, the Courier adheres to the following standards:
TIA/EIA-578 Service Class 1 Asynchronous Facsimile DCE Control Standard
TIA/EIA-592 ITU-T V.17 ITU-T V.29 ITU-T V.27ter ITU-T V.21
Service Class 2.0 Asynchronous Facsimile DCE Control Standard 14.4/12 Kbps 9600/7200 bps 4800/2400 bps 300 bps
Additional Specifications
Supported serial port rates Adaptive Speed Leveling (ASL) Serial port connector Serial interfaces Communications channel 115200, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 300 bps 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 bps DB-25 EIA RS-232, supports Macintosh serial ports Full- or half-duplex on 2-wire phone lines; demand-driven high-speed turnaround in HST mode; symmetrical speeds in V.32 bis Binary, serial; defaults to 8-bit word length, no parity, and 1 stop bit. Word Parity Stop Length (1 Bit) Bits 7 Even, Odd, 1 Mark, Space 7 None None 1 Variable sizes 56 characters, excluding the AT prefix, Carriage Return and spaces

Data format

Flow Control Buffers Command Buffer

IC (Industry Canada)

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the radio interference regulations of Industry Canada (formerly Canadian Department of Communications). Le prsent appareil numrique n'met pas de bruits radio-lectriques dpassant les limites applicables aux appareils numriques de la classe B prescrites dans le Rglement sur le brouillage radiolectrique dict par Industrie Canada (antrieurement le ministre des Communications du Canada).
The Industry Canada (formerly DOC) label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, 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 single line individual service by means of a certified connector assembly (telephone extension cord). You should be aware, however, that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by a user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
For your own protection, make sure that the electrical ground connections of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas. WARNING: Do not attempt to make such connections yourself; contact the appropriate electric inspection authority or electrician.

33.6 Kbps 1-5

AA light 1-4 access Internet 1-1 remote 1-2 Adaptive Speed Leveling (ASL) 1-7, B-3 AIX 3-10 alternating voice and data 4-3 America Online 5-1 AppleTalk Remote Access (ARA) 3-7 ARQ/FAX light 1-5
Chameleon 5-2 COM port 2-1 communications software 2-1 compression protocols B-2 CompuServe 5-7 contents of package 2-3 CS light 1-4

data compression protocols B-2 DB-25 connectorError! Bookmark not defined. A-2 DB-9 connector A-2 dedicated-line support 1-8 dialer 1-1 dialing protocols B-2 Dial-Up Networking 3-3 digital telephone lines 2-1 DIP switches, setting 2-4 distinctive ring feature 1-7 DNS configuration 3-4 DOS 3-6
Bulletin Board System (BBS) 1-2
cable DB-25 to DB-9 A-2 hardware handshaking 2-2, A-3 serial 2-2 caller ID feature 1-7 calls, getting information about 4-6 carrier loss redial feature 1-8 CD light 1-4
EIA-232 2-1, A-1 error control protocols B-2
fax features 1-7 protocols B-2 sending 1-2 FCC notice C-3 Flash memory 1-6 flow control A-2
Mac OS 3-7 Macintosh computers cabling A-3 communications 3-7 minicom 3-10 MR light 1-4
hardware handshaking cable 2-2, A-3 high speeds, attaining 1-5 HS light 1-4 HyperTerminal 3-2
NetManage Chameleon 5-2 notices C-3
OH light 1-4 online command mode 4-6 online services 1-2 OS/2 3-6
IC notices C-4 indicators, appearance at power-on 2-6 INF file for Windows 95 3-1 installation procedure 2-4 Internet access 1-1
package contents 2-3 pcAnywhere 5-4 Plug and Play 1-8 Point-to-Point Protocol (PPP) 1-1 port, serial 2-1 ProComm Plus 5-5 Prodigy 5-6 protocols B-1
last call information 4-7 leased-line support 1-8 LEDs 1-3 appearance at power-on 2-6 meanings of 1-4 lights appearance at power-on 2-6 status 1-4 line quality 1-6 Linux 3-10
RD light 1-4 redial, carrier loss 1-8 Remote Access Dialer for Windows NT 3-7 Remote Access Service for Windows NT 3-7
remote configuration of the Courier 1-7 RS light 1-4 RS-232 See EIA-232
V. protocols B-1 V.34 1-5, B-1 V.Everything, defined 1-6 verifying operation 3-11 Voice/Data switch 1-3, 4-2 volume control 1-3, 4-1
SD light 1-4 security features 1-6 selective reject 1-5 serial cable 2-2 Serial Line Internet Protocol (SLIP) 1-1 serial port 2-1 settings, current 4-6 software, communications 2-1 speaker, controlling the 4-1 standards compatibility B-1 status indicators 1-3 switches, setting 2-4 SYN light 1-5 synchronous applications 1-8, 3-10
Warp 3-6 warranty C-1 Win CIM 5-7 Windows 3.1 3-5 3.11 3-3-1 for Workgroups 3-5 NT 3-7 Terminal 3-5 WinFax PRO 5-8 Winsock 5-7
TCP/IP 1-1, 3-4 technical specifications B-1 testing the Courier 1-7, 3-11 TR light 1-4 Trumpet Winsock 5-7

YMODEM file transfer protocol 1-2
U.S. Robotics BBS 3-11 contacting the writers iv UART 2-1 UNIX 3-10
ZMODEM file transfer protocol 1-2

Introduction

Calling Online Services
Each online service, such as America Online or CompuServe, provides its own customized communications software package. A couple of these packages are included with the Courier. These packages do the dialing and guide you through the steps of registration.
Accessing Corporate Networks Remotely
Dialing in to a remote network requires remote access software. When you dial in to a network, the software makes your remote computer appear to the network as locally attached. You can then use your network just as you would if you were there: send mail, print files, and access LAN drives. A remote access package is included with the Courier.
Calling Bulletin Board Systems (BBSs)
Calling a BBS requires communications software that does terminal emulation. The software should also support common, standard file transfer protocols, such as YMODEM and ZMODEM. A communications software package is included with the Courier.
Sending Facsimiles or Files
Most communications software packages support file transfers and many support fax operations. You can use fax-capable software to call fax machines or other fax modems and send facsimiles.
Courier V.Everything Internal Modems: Getting Started
Courier Controls and Connectors
This section shows the DIP switches and connectors on the Courier and indicates where to find more information about each.

To Telephone

SEE PAGE 2-12

To Wall Jack

DIP Switches Jumpers
SEE PAGES 2-4 & 2-7 SEE PAGE 2-8
Figure 1-1. The Courier V.Everything Modem.

The Courier

Features

33.6 Kbps Connectivity

The Courier contains software that enables 31.2 and 33.6 Kbps connection rates, as well as improves throughput at lower speeds. While line conditions may not always allow for 33.6 Kbps connections, the new software makes it more likely that your Courier will achieve and maintain 28.8 Kbps connections. It can add up to 4800 bps to the average V.34 connection rate. Selective Reject Selective Reject is an optional part of the ITU V.42 (LAPM) specification. This feature improves performance on noisy lines by reducing the amount of overhead incurred when the protocol must resend data due to errors. When selective reject is active, only the frame that contained the error is resent, instead of the frame plus all of the following unacknowledged frames. You can disable selective reject by changing a setting in S-Register 51 (see Appendix A, Alphabetic Command Summary, in the Courier Modems Command Reference manual). Attaining Speeds Above 28.8 Kbps V.34 connections at 21.6, 24.0, and 26.4 Kbps are common. To get connections of 28.8, 31.2, and 33.6 Kbps, line quality must be pristine end-to-end. In addition, 31.2 and 33.6 Kbps connection rates are possible only when the device to which you are connecting also runs software that supports speeds above 28.8 Kbps. If you are curious about the role that line quality plays in attaining and maintaining high-speed connections, and want to learn what you can do to improve connections, request the following document from our Fax on Demand service: Phone Line Quality and High Speed Connections. The Fax on Demand number is (800) 762-6163.

V.Everything

The Courier provides full support of the V.34 standard, V.Fast Class, V.32 terbo, and many other modulation schemes, spanning the range of speeds between 33.6 Kbps and 300 bps. We call this unique combination of abilities V.Everything. See the Compatibility section in Appendix B, Technical Specifications, for details.

Flash ROM Upgradability

Courier modems are software-upgradable using XMODEM file transfers, allowing you quick, easy access to updates of the Couriers technology. See Chapter 17, Upgrading the Couriers Software, in the Courier Modems Command Reference manual.

Dial Security

The Couriers dial security functionality is part of its operating software, which allows you to control access at a modem-tomodem level instead of using software that runs on the host computer. With Dial Security, you can prevent unauthorized access to a system through the use of password prompting and dialback. Refer to Chapter 9, Dial Security, in the Courier Modems Command Reference manual.
Remote Configuration and Diagnostics
You can remotely configure and test the Courier. If you are a network administrator supporting remote users, this feature can save you time and money. Refer to Chapter 8, Remote Access, in the Courier Modems Command Reference manual.
Adaptive Speed Leveling (ASL)
Couriers monitor line conditions while connected, and fall back to the next lower speedfor example, 19.2K, then 16.8K in V.32terbo modeif conditions are poor. Couriers also detect improved line conditions and shift upward to the next higher speed. Transmit and receive channels adapt independently, each detecting and adjusting to line conditions.
Calls to and from Modems and Fax Machines
When used with fax-capable communications software, the Courier auto-detects and responds to calls from modems and Group III fax machines using EIA-standard Class 1 or 2.0 fax software.

Testing

ITU-T V.54 loopback testing is available. The Courier can perform analog, digital, and remote digital loopback tests. See Chapter 15, Testing, in the Courier Modems Command Reference manual.

Caller ID Support

The Courier can interpret and display caller ID information. See the Caller ID section in Chapter 3, Dialing, Answering, and Hanging Up, in the Courier Modems Command Reference manual.

Distinctive Ring Support

The Courier can be set to recognize and respond to any of four distinctive ring patterns. See the Distinctive Ring section in Chapter 3, Dialing, Answering, and Hanging Up in the Courier Modems Command Reference manual.

Carrier Loss Redial

If you enable the carrier loss redial feature, the Courier will automatically redial the last number it dialed if carrier is lost (for example, if there is trouble on the line or if the remote modem hangs up). This feature is useful for dialed-line connections that operate unattended. See Chapter 3, Dialing, Answering, and Hanging Up, in the Courier Modems Command Reference manual.

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 lock ups. First, determine whether your computer has a Plug and Play ISA bus. Check your computers documentation to be sure. Keep these points about Plug and Play in mind: Your computers Basic Input/Output System (BIOS) must support Plug and Play, and Your computers operating system must support Plug & Play (examples of those that do: OS/2 Warp, Windows 95, Windows NT), or your computers manufacturer must supply you with Plug and Play software.
If your computer has a Plug and Play ISA bus, BIOS, and operating system, follow the steps in Plug and Play Setup. If not, follow the steps in Standard Setup.

Plug and Play Setup

The Courier is Plug and Play capable, but is shipped with settings for COM2 and IRQ3. To prepare the Courier for installation in a computer with a Plug and Play operating system, locate the jumpers at the bottom corner of the card.
Figure 2-2. Location of the Jumpers.
Remove the jumper from C. The positions of all other jumpers, including the IRQ jumpers, are irrelevant while Plug and Play is selected, and are ignored.

Plug and Play

Figure 2-3. Setting the Jumpers for Plug and Play.
Go to Setting the DIP Switches on page 2-8.

Standard Setup

If your computer can run Windows applications, follow the steps below to determine how to set up the Courier. If your computer cant run Windows applications, see Chapter 3, Communicating with the Courier.
Before attempting to insert the Courier card in your computer, power ON your computer and start Windows. Insert the QuickLink II diskette into drive A (or B). From the Program Manager groups menu bar, select File and then Run. Type a:\comtest (or b:\comtest, depending on the drive into which you inserted the diskette).
Select Recommend settings for a new modem and then select Next >. Select Internal modem and then select Next >.
Write down the COM port and IRQ that ComTest recommends, and then select Next >. COM IRQ _______ _______
If ComTest gives you the choice, select Write to SYSTEM.INI and then select Next >, and then Finish. Eject the QuickLink II diskette, exit Windows, and then power OFF your computer.
10 If ComTest recommends settings that are different from the

Remove the screws that hold on the computers cover and then slide the cover off.
Find an empty slot that provides enough room to install the Courier. Remove the screw that holds on the slot cover and then remove the slot cover. Save the screw!
Insert the Courier into the slot and press down on the top edge of the Courier until it is seated firmly. Using the screw you saved in step 3, secure the Courier in your computer. Replace the cover of your computer and tighten its screws.

Connecting the Cables 3

Connect one end of the phone cable to the wall jack and the other end to the Courier port labeled JACK. If you have a telephone that youd like to connect to the Courier, plug its cable into the Courier port labeled PHONE. Continue with Chapter 3, Communicating with the Courier.
Chapter 3 Communicating with the Courier
The methods of verifying communication with the Courier vary depending on the operating system your computer uses. Windows 95 Windows 3.x Windows NT DOS OS/2 Linux
This chapter provides advice about how to get many popular operating systems to communicate with the Courier. The last section, Testing the Courier, explains how to verify that your Courier and software are working together correctly.

Windows 95

The first time you start Windows 95 after youve installed the Courier, Windows 95 will auto-detect the Courier. Windows 95 has built-in support for Couriers, but since the Courier has been updated since the release of Windows 95, you need to supply Windows 95 with an updated INF file so it can properly identify your Courier. The latest INF file is always available from our BBS and our ftp site.

Getting the INF File

Power on your computer with the modem installed. As Windows 95 loads, it presents a New Hardware Found panel. Select Standard Modem.
Communicating with the Courier
Start a communications software package (such as HyperTerminal, which is included with Windows 95) and dial the U.S. Robotics BBS at (847) 982-5092. Go to File directories, then 5) U.S. Robotics Courier. Download the MDMUSRCR.INF file.
Or, ftp://ftp.usr.com/SYS/PCB/dl05 and get MDMUSRCR.INF.

Installing the INF File

Go to an MS-DOS Prompt:
Microsoft Windows 95 Copyright Microsoft Corp 1981-1995 c:\WINDOWS>
Change to the directory in which you put the INF file; for example, the TEMP directory.

C:\WINDOWS>cd\temp

Windows responds:

C:\TEMP>

Enter the following command:
C:\TEMP>copy mdmusrcr.inf \windows\inf

1 file(s) copied

Be aware that the \inf directory is hidden, and even though it may not appear, it is there.
Making Windows 95 Auto-Detect Your Courier
Click Start | Settings | Control Panel and then double-click Modems. Remove the Standard Modem. Then click Add.
At the Install New Modem panel, click Next. Windows 95 will auto-detect your Courier and install the appropriate support.
Finding Out Which COM Port Windows 95 Assigned (Plug and Play Only)
If you set the Courier to Plug and Play when you installed it, you need to know which COM port your system has chosen for the Courier, especially if you plan to use communications software created for Windows 3.x.
From Start | Control Panel | Modems, select the Courier and then select Properties.
Note the COM port that Windows 95 has chosen for the Courier.
Windows 95 Dial-Up Networking: Internet Access
This section explains how to set up the Courier for accessing the Internet using Windows 95 Dial-Up Networking. You can also use Dial-Up Networking for accessing remote LANs.
Make sure Dial-Up Networking is installed.
Click Start | Settings | Control Panel. From the Control Panel, double-click on Network. If a Dial-Up Adapter is listed, go to step 5. If not, continue with step 3.
Go back to the Control Panel and double-click on Add/Remove Programs. Click the Windows Setup tab. Then double-click on Communications. Click on Dial-Up Networking to check the box. Click OK, then OK. Insert your Windows 95 Setup diskette or CD-ROM when you are prompted, and Windows 95 will install Dial-Up Networking.
Add Dial-Up TCP/IP Support.
Click Start | Settings | Control Panel. From the Control Panel, double-click on Network. If TCP/IP -> Dial-Up Adapter is listed, go to step 8. If not, continue with step 7.
Select Add | Protocol | Microsoft | TCP/IP | OK. Insert your Windows 95 Setup diskette or CD-ROM when you are prompted, and Windows 95 will install TCP/IP protocol support.
Customize the TCP/IP Settings.
Click Start | Settings | Control Panel. From the Control Panel, double-click on Network. Click on
10 Select TCP/IP -> Dial-Up Adapter | Properties
the DNS Configuration tab. Select Enable DNS.
Type in your Host: and Domain: names, which are provided to you by your Internet service provider. Type your DNS servers IP address or addresses (also provided by your Internet service provider) in the blank, and then click Add | OK | OK.
Set Up a Connection to Your Internet Service Provider.
11 Click Start | Programs | Accessories | Dial-Up

Networking.

12 Double-click Make New Connection.
Type a name for the connection, then click Next >. Type a phone number for the connection, then click Next >. You should see a message indicating that a new connection was created successfully. Click Finish.
13 From the Dial-Up Networking window, put the cursor over
your new icon and click the right mouse button. Select Properties from the menu that appears.
14 Click Server Type, and then deselect Log on to Network,
NetBEUI, and IPX/SPX Compatible.

15 Select OK, then OK.

Double-click on your new connection icon to connect!

Windows 3.x

First, try testing the Courier by following the steps below. Use any communications software package for this test. For example, Windows includes Terminal, a minimally equipped communications program. Because Terminal supports serial port rates of up to only 19200, Quick Link II Fax is used in this example.
Install and then start Quick Link. Click Setup | Line Settings Make the following settings. If you are using a computer with a serial port that cannot support high speeds, choose 19200. Then click OK.
Click Setup | Modem Setup Select the COM Port that the Courier is using (the one you set using the jumpers in Chapter 2). Click OK. In the terminal window, type AT <Enter>. The Courier should respond OK.
If you dont get an OK response, refer to Chapter 16, Troubleshooting, in the Courier Modems Command Reference manual.
Dial the U.S. Robotics BBS at (847) 982-5092. For example, ATDT18479825092 <Enter> dials the U.S. Robotics BBS as a long-distance call. NOTE: If you need to dial 9 to get an outside line, dial as in this example: ATDT9,18479825092 <Enter>. If you want to disable call waiting for this call, in most areas, dial *70 before you dial the phone number, for example, ATDT*70,18479825092 <Enter>. The following screens are what you should see when you dial the BBS.
atdt9825092 CONNECT 31200/ARQ/V34/LAPM/V42BIS CONNECT 31200/ARQ/V34/LAPM/V42BIS CONNECT 115200 / 02-27-96 (12:52:21) (Error Correcting Modem Detected) USR Support BBS - ComServer 486 PCBoard (R) v15.22/100 - Node 11 Testing your system capability. Do you want graphics (Enter)=yes? ( )

Figure 3-1. Connecting.

03F8 02F8 03E8 02E8

IRQ4 IRQ3 IRQ4 IRQ3
The Quick Link II diskette, which is included in the package with the Courier, contains a DOS version of the software as well as a Windows version. For instructions about how to set up your DOS communications software package, call our fax-on-demand service (at 800-7626163 or 847-676-1598) or our BBS (at 847-982-5092). Request document 10000 for a list of our technical support documents.
Remember that you can use WinOS2 to run Windows communications software packages. To get the best performance, however, you should replace the standard OS/2 serial port drivers COM.SYS and VCOM.SYS with SIO.SYS and VSIO.SYS. You can get the enhanced drivers from our BBS at 847-982-5092. Check file area 18, OS/2 Support, Utilities, etc for SIO153.ZIP.
These are the standard I/O address and IRQ settings for each COM port:
Nonstandard COM/IRQ settings are done by adding switches (command line parameters) to the COM.SYS (or SIO.SYS) line in CONFIG.SYS. For example, the following line selects COM3 and IRQ5: \OS2\BOOT\COM.SYS /i5/c3 For help with OS/2 Warp installations, download the file WARPIN.ZIP from BBS file area 18, OS/2 Support, Utilities, etc. For instructions about how to set up your OS/2 communications software package, call our fax-on-demand service (at 800-7626163 or 847-676-1598) or our BBS (at 847-982-5092). Request document 10000 for a list of our technical support documents.
If you are using the Courier for dial-in only, set DIP switch 4 ON and leave the other switches in their default positions. You may need to set DIP switch 1 ON if your computer does not send a Data Terminal Ready (DTR) signal. If you are using the Courier for dial-in and dial-out, set DIP switches 3, 4, 7, and 8 ON and leave the other switches in their default positions. You may need to set DIP switch 1 ON if your computer does not send a Data Terminal Ready (DTR) signal.
These are the standard port names and settings:
Outgoing Calls Incoming Calls Port IRQ I/O Address
/dev/cua0 /dev/cua1 /dev/cua2 /dev/cua3
/dev/ttyS0 /dev/ttyS1 /dev/ttyS2 /dev/ttyS3
Use the setserial command to tell Linux about any nonstandard COM/IRQ combinations that you may have set using the Couriers jumpers. Setserial also selects serial port speed and I/O port address. Linux has a built-in communications software package called minicom. By default, minicom is located in the usr/bin directory. For instructions about how to set up your Linux communications software package, call our fax-on-demand service (at 800-762-6163 or 847-676-1598) or our BBS (at 847-9825092). Request document 10000 for a list of our technical support documents.
Chapter 4 Setups for Common Windows Software Packages
If you are running one of the following software packages, follow the steps given to configure it for use with the Courier. America Online v2.0 NetManage Chameleon v4.5 pcAnywhere v2.0 for Windows ProComm Plus v2.0 for Windows Prodigy Trumpet Winsock WinCIM (for CompuServe) WinFax Pro 4.0

These instructions are valid as of the printing of this manual and may not apply to future releases of the software packages. If you need further help, or help with a software package that is not listed here, try our fax-on-demand service (at 800-762-6163 or 847-676-1598) or our BBS (at 847-982-5092). Request document 10000 for a list of our technical support documents.

America Online 2.2 3

From the America Online - Welcome window, choose Setup. From the Network & Modem Setup window, select Setup Modem. From the Modem Selection and Customization window, select the COM port that the Courier is using, and choose USRobotics Courier HST Dual Std/PC FAX w/ASL (v2.0) as your modem. Then select Edit Commands.
Setups for Common Windows Software Packages
The following window will appear. Change the Setup Modem String to match the string in the figure below.
Select OK, then OK, then OK.

NetManage Chameleon 4.5

You should know in advance which Internet service provider (for example, PSINet or NETCOM) you will be using. NetManage provides a number of configuration templates for many popular Internet service providers. The settings recommended here are the Courier-specific ones only.
Click Setup | Communications | Port. Two settings will be specific to your setup: Baud Rate: 57600 bps is recommended, but only if you have a 16550 UART. The UART is a computer chip that controls the transmission and reception of signals through your computers serial port. Check your computers manual to be sure - slower UARTs, like 16450 or 8250, will limit speeds to 19200 bps. Connector: Select the COM port to which the Courier is attached.
Click Setup | Communications | Modem. Select U.S. Robotics Courier Dual Standard.
pcAnywhere 2.0 for Windows 1
From the Smart Setup window, go to the Your Modem area and select USRobotics Courier HST Dual Standard.
Select the serial port and the protocol running on the network into which youll be dialing, and then select OK.

V.FC V.32terbo

Technical Specifications
handshake adjustment to 300 bps Quadrature Amplitude Modulation (QAM). ITU-T V.32bis 14.4/12 Kbps; 9600/7200 bps asynchronous Trellis Coded Modulation (TCM); 4800 bps asynchronous Quadrature Amplitude Modulation (QAM) 9600 bps asynchronous, Trellis Coded Modulation (TCM); 4800 bps asynchronous, Quadrature Amplitude Modulation (QAM) 2400 bps asynchronous, Quadrature Amplitude Modulation (QAM) 1200 bps (also V.22) asynchronous, Differential Phase Shift Keying (DPSK) 1200 bps asymmetrical with 75 bps back channel with Frequency Shift Keying (FSK), used by some U.K. and European phone systems. 300 bps (ITU-T V.21 optional) asynchronous, Frequency Shift Keying (FSK)

ITU-T V.32

ITU-T V.22bis Bell 212A ITU-T V.23

Bell 103

Error Control, Data Compression, Testing, and Dialing
ITU-T V.42 MNP HST ITU-T V.42bis ITU-T V.54 ITU-T V.25bis LAPM error control, 1200 bps and higher Levels 2, 3, and 4 error control; level 5 data compression, 1200 bps and higher Asymmetrical mode, at 16.8/14.4/12 Kbps; 9600/ 7200/4800 bps, 450/300 bps back channel Data compression, 1200 bps and higher Digital and remote digital loopback testing Dialing and answering methods for automatic calling and/or answering equipment.
The Courier provides Group III-compatibility when controlled by Class 1 or Class 2.0 fax software. In addition, the Courier adheres to the following standards:
TIA/EIA-578 Service Class 1 Asynchronous Facsimile DCE Control Standard
TIA/EIA-592 ITU-T V.17 ITU-T V.29 ITU-T V.27ter ITU-T V.21
Service Class 2.0 Asynchronous Facsimile DCE Control Standard 14.4/12 Kbps 9600/7200 bps 4800/2400 bps 300 bps
Additional Specifications
Supported serial port rates Adaptive Speed Leveling (ASL) Communications channel 115200, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 300 bps 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 bps Full- or half-duplex on 2-wire phone lines; demand-driven high-speed turnaround in HST mode; symmetrical speeds in V.32 bis Binary, serial; defaults to 8-bit word length, no parity, and 1 stop bit. Word Parity Stop Length (1 Bit) Bits 7 Even, Odd, 1 Mark, Space 7 None None 1 Variable sizes 56 characters, excluding the AT prefix, Carriage Return and spaces Remote digital loopback, digital loopback, test pattern, and dial test 60 second default, programmable 2-255 sec

Data format

Flow Control Buffers Command Buffer Test Options Failed Call Timeout
Answer Tone Timeout Answer Tone Detector Loss of Carrier (Disconnect Timer) Equalization Receive Sensitivity Transmit Level Transmitter Frequency Tolerance Certification Ringer Equivalence
60 seconds 2080-2120 Hz 0.7 second default, programmable 0.2-25.5 sec. Adaptive - 43 dBm + 2 dBm - 9 dBm maximum.01% FCC Part 15, Class B Domestic; IC (Canada) CS-03, UL listed 0.4b
Appendix B Warranty and Notices

Limited Warranty

U.S. Robotics Access Corp. warrants to the original consumer or other end user purchaser that this product is free from defects in materials or workmanship for a period of five years from the date of purchase. During the warranty period, and upon proof of purchase, the product will be repaired or replaced (with the same or similar model) at our option, without charge for either parts or labor. This warranty shall not apply if the product is modified, tampered with, misused, or subjected to abnormal working conditions. REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE, AND U.S. ROBOTICS SHALL IN NO EVENT BE LIABLE TO PURCHASER FOR INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND OR CHARACTER. Some states do not allow the exclusion or limitation of incidental or consequential damages or allow limitations on how long an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights. You may also have other rights that vary from state to state.

Warranty and Notices

Should you encounter problems in operating this device, first follow the instructions in Chapter 16, Troubleshooting, of the Courier Modems Command Reference manual. The chapter contains solutions to operating problems as well as procedures to follow if there is an apparent Courier malfunction.

Service/Support

To obtain service under this warranty, contact U.S. Robotics Corporate/Systems Support as described below. Be sure to have the products serial number handy if you call, or send copies if you are contacting us by mail.

Contacting U.S. Robotics

Check the Corporate/Systems Customer Support card that came with your Courier for information about how to contact us. If the support representative determines that you should send your equipment to USR for service, you will be given a Service Repair Order (SRO) number to help us keep track of your warranty request. Once you have received your SRO number, take or mail the product, postage prepaid, to U.S. Robotics at the address on page 16-8 in the Courier Modems Command Reference. Include proof of the date of purchase. IMPORTANT: If you ship your unit, pack it securely, be sure your SRO number is visible on the outside of the package, and ship it charges prepaid and insured.

Notices

FCC Registration
FCC15: CJE-0269 FCC 68: CJEUSA-73130-FA-E
Connecting to the Telephone Companys Lines
The telephone company may request the telephone number(s) to which the Courier is connected and the FCC information printed above. If the Courier is malfunctioning, it may affect the telephone lines. In this case, disconnect the 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 protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ----Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

IC (Industry Canada)

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the radio interference regulations of Industry Canada (formerly Canadian Department of Communications). Le prsent appareil numrique n'met pas de bruits radio-lectriques dpassant les limites applicables aux appareils numriques de la classe B prescrites dans le Rglement sur le brouillage radiolectrique dict par Industrie Canada (antrieurement le ministre des Communications du Canada).
The Industry Canada (formerly DOC) label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, 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 single line individual service by means of a certified connector assembly (telephone extension cord). You should be aware, however, that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by a user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
For your own protection, make sure that the electrical ground connections of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas. WARNING: Do not attempt to make such connections yourself; contact the appropriate electric inspection authority or electrician.

33.6 Kbps 1-4

ComTest 2-5 connecting cables 2-12 contents of package 2-2
access Internet 1-1 remote 1-2 Adaptive Speed Leveling (ASL) 1-5, A-3 adminstrator login 3-9 America Online 4-1
data compression protocols A-2 dedicated-line support 1-7 dialer 1-1 dialing protocols A-2 Dial-Up Networking 3-4 DIP switches 2-8, 3-13 distinctive ring feature 1-6 DNS configuration 3-5 DOS 3-12 downloading new software 1-5
BIOS 2-3 Bulletin Board System (BBS) 1-2
error control protocols A-2 expansion slot 2-11 Extended Industry Standard Architecture (EISA) 1-1
cables, connecting 2-12 caller ID feature 1-6 carrier loss redial feature 1-6 Chameleon 4-2 COM port names for Linux 3-14 Plug and Play and 3-3 requirement 2-2 setting 2-7 standard settings 3-12, 3-13 COM.SYS 3-12 compression protocols A-2 CompuServe 4-7
fax features 1-6 protocols A-2 sending 1-2 FCC notice B-3 Flash memory 1-5
high speeds, attaining 1-4 HyperTerminal 3-2

online services 1-2

IC notices B-4 Industry Standard Architecture (ISA) 1-1 INF file for Windows 95 3-1 installing the Courier 2-10 Internet access 1-1 IRQ requirement 2-2 setting 2-7
package contents 2-2 pcAnywhere 4-4 PHONE 2-12 Plug and Play 1-6, 2-2, 3-3 Point-to-Point Protocol (PPP) 1-1 ProComm Plus 4-5 Prodigy 4-6 protocols A-1

JACK 2-12 jumpers 2-4

Quick Link II 3-7
leased-line support 1-7 line quality 1-4 Linux 3-14 redial, carrier loss 1-6 Remote Access Dialer for Windows NT 3-9 Remote Access Service for Windows NT 3-9 remote configuration of the Courier 1-5 resetting the Courier 2-9

minicom 3-14

security features 1-5 selective reject 1-4 Serial Line Internet Protocol (SLIP) 1-1 setserial command for Linux 3-14 SIO.SYS 3-12 standard COM port settings 3-12, 3-13 standards compatibility A-1
NetManage Chameleon 4-2 New Connection icon 3-5 notices B-3
TCP/IP 1-1, 3-4 testing the Courier 1-6, 3-7 Trumpet Winsock 4-7
warranty B-1 Win CIM 4-7 Windows 95 3-1 NT 3-9 Windows Terminal 3-7, 3-9 WinFax PRO 4-8 WinMSD 3-9 WinOS2 3-12 Winsock 4-7
U.S. Robotics BBS 3-8 contacting the writers iii UART 2-2 upgrading the Courier's software 1-5
YMODEM file transfer protocol 1-2
V. protocols A-1 V.34 1-4, A-1 V.Everything, defined 1-5 VCOM.SYS 3-12 verifying operation 3-7 VSIO.SYS 3-12
ZMODEM file transfer protocol 1-2