US Robotics Courier V.Everything 3CP3453 Manual de usuario
Courier V.Everything Internal Modem:
Getting Started
FINAL
4/96
p/n 1.024.493
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 and Connectors.......................................................1-3
Features...................................................................................................1-4
Chapter 2 Installing the Courier 2-1
What You Need......................................................................................2-1
Package Contents...................................................................................2-2
Important!...............................................................................................2-2
Plug and Play Setup..............................................................................2-4
Standard Setup.......................................................................................2-5
Setting the DIP Switches.......................................................................2-8
Installing the Courier..........................................................................2-10
Connecting the Cables ........................................................................2-12
Chapter 3 Communicating with the Courier 3-1
Windows 95............................................................................................3-1
Windows 3.x...........................................................................................3-7
Windows NT..........................................................................................3-9
DOS........................................................................................................3-12
OS/2 ......................................................................................................3-12
Linux......................................................................................................3-13
Chapter 4 Setups for Common Windows Software Packages 4-1
America Online 2.0................................................................................4-1
pcAnywhere 2.0 for Windows.............................................................4-4
ProComm Plus 2.0 for Windows.........................................................4-5
Prodigy....................................................................................................4-6
Trumpet Winsock..................................................................................4-7
Win CIM (CompuServe).......................................................................4-7
WinFax PRO 4.0.....................................................................................4-8
Appendix A Technical Specifications A-1
Standards Compatibility......................................................................A-1
Appendix B Warranty and Notices B-1
Limited Warranty................................................................................. B-1
Notices.................................................................................................... B-3
About This Manual
This manual explains how to set up and start using your Courier
V.Everything Internal 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
E-mail: [email protected]
Introduction 1-1
Chapter 1
The Courier
The Courier V.Everything Internal Modem makes any
IBM-compatible computer with an Industry Standard
Architecture (ISA) or Extended Industry Standard Architecture
(EISA) expansion bus 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 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 Internal Modems: 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 and Connectors
This section shows the DIP switches and connectors on the
Courier and indicates where to find more information about
each.
To Wall Jack
To Telephone
SEE PAGE 2-12
SEE PAGE 2-12
DIP Switches
SEE PAGE 2-8
Jumpers
SEE PAGES 2-4 & 2-7
Figure 1-1. The Courier V.Everything Modem.
1-4 Courier V.Everything Internal Modems: Getting Started
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.
The Courier 1-5
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
Courier’s technology. See Chapter 17, Upgrading the Courier’s
Software, in the Courier Modems Command Reference manual.
Dial Security
The Courier’s dial security functionality is part of its operating
software, which allows you to control access at a modem-to-
modem 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 speed—for example, 19.2K, then 16.8K in
V.32terbo mode—if 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.
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