US Robotics 002805-00 Bedienungsanleitung

Courier V.Everything External Modem:

Getting Started

FINAL

4/96

p/n 1.024.492

1996 U.S. Robotics Access Corp.

8100 North McCormick Blvd.

Skokie, IL 60076-2999

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

We’ve 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: (847) 933-5200

Email: [email protected]

The Courier 1-1

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 you’re 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 you’ll need. In other

cases, support for Internet access is built in to your computer’s

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).

1-2 Courier V.Everything External Modem: Getting Started

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.

The Courier 1-3

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.

AA CD NS RD SD DTR MR RTS CTS SYNC ARQ/

FAX

HS VOICE/DATA

COURIER

V.EVERYTHING

with V.34

Status LEDs

Voice/Data Switch

Volume Control

SEE PAGE 4-2

SEE PAGE 4-1

SEE PAGE 1-4

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

To Wall JackTo Telephone

To AC Power To Computer

Power

Switch

SEE PAGE 2-4 SEE PAGE 2-4

SEE PAGE 2-6

SEE PAGES 2-4 and A-1SEE PAGE 2-4

Figure 1-2. The Courier V.Everything Modem (Back).

1-4 Courier V.Everything External Modem: Getting Started

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 High Speed

On 4800 bps or faster connection. Once on, remains on until reset.

Off The Courier has not made a 4800 bps or faster connection since last

reset.

AA Auto Answer Status

On Auto-answer on.

Blinking Incoming call detected.

Off Auto-answer off.

CD Carrier Detect Status

On Carrier detected from remote device, or carrier detect forced on

(using DIP switch 6).

Off Carrier not detected.

OH Off Hook

On The Courier has control of the line.

Off The Courier does not have control of the line.

RD Received Data Status

Flashing The Courier is sending data to your computer.

Off Idle.

SD Send Data Status

Flashing The Courier is receiving data from your computer.

Off Idle.

TR Data Terminal Ready Status

On DTR signal received from your computer, or DTR is forced on (using

DIP switch 1).

Off DTR not detected.

MR Modem Ready

On The Courier is powered on.

Flashing The Courier is retraining with a remote device or is in test mode.

Off The Courier is powered off.

RS Request to Send Status

On RTS signal received from your computer.

Off RTS signal not detected.

CS Clear to Send Status

On The Courier is sending your computer the CTS signal.

Off The Courier is not sending your computer the CTS signal.

continued…

The Courier 1-5

SYN Synchronous Status

On The Courier is in synchronous mode.

Blinking Dial security is active.

Off The Courier is not in synchronous mode/dial security not active.

ARQ/FAX Error Correction/Fax

On Error correction is active.

Flashing The Courier is retransmitting data to the remote modem.

Blinking The Courier is in fax mode.

Off 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

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