Category : Communication (modem) tools and utilities
Archive   : SP144MAN.ZIP
Filename : FRONT.TXT

SPORTSTER 14,400
1 Introduction
INTRODUCTION


Congratulations! The Sportster 14,400
modem you've purchased represents
powerful, advanced design. It offers ex
ceptional reliability, compatibility and
flexibility at all standard rates up to
14.4K bits per second (bps). Whether
you're a seasoned modem user or have
just purchased your first modem, we're
sure it will give you excellent service.
Once you've connected your new Sportster
14,400 to your telephone line, you'll be
able to use your computer in exciting
new ways. Some of the possibilities are
shown in the figure below.

Data Communications Options

HOW TO USE THIS MANUAL

This manual is divided into two parts.
The first part is designed to aid you in
getting your modem connected and
operating as quickly as possible and to
explain all its functions. The second
part contains summaries and other
reference information.
As you use the manual, keep the
following guidelines in mind.
ù The modem is shipped ready for most
dial-up applications except for its
flow control setting, which depends
on the type of communications
software and machine you're using.
After you've set up the modem and
tested its operation (Chapter 2),
review the instructions in Chapter
3, Quick Start, for brief
configuration guidelines.
ù Sportster 14,400 modems connect
automatically with remote modems
operating at 14.4K, 12K, 9600,
7200, 4800, 2400, 1200 or 300 bps,
as long as the remote modems
observe the standards listed under
Compatibility in Chapter 1.
Below is a brief description of the
manual's contents.
ù Chapter 1_Operating and
compatibility features
ù Chapter 2_Installation and testing
ù Chapter 3_Quick-start instructions
ù Chapter 4_Modem settings for the
computer and phone line interfaces
ù Chapter 5_Internal modem
operational settings
ù Chapter 6_Dialing, answering and
disconnecting
ù Chapter 7_Queries and Help commands
to display current settings,
operational summaries, and other
data
The Appendixes in Part II cover the
following subjects.
ù Background information on error
control, throughput and flow
control
ù Summaries and tables
ù An alphabetical command summary
ù Problems, their causes and
solutions
ù Fax and other operational
information
ù Procedures for modem testing
ù Glossary
ù Warranty/Service/Certification
information


















USRobotics, the USRobotics logo,
Sportster, Sportster 14,400 V.32
bis with V.42 bis, and Sportster
14,400 Fax V.32 bis with V.42 bis
are registered trademarks of U.S.
Robotics, Inc. CompuServe is a
registered service mark of Compu
Serve Inc. IBM, IBM PC, PC/XT,
and PC/AT are trademarks of
International Business Machines
Corp. Microcom Networking
Protocol (MNP) is a registered
trademark of Microcom, Inc.
Prodigy is a registered service
mark and trademark of Prodigy
Services Company, a partnership of
IBM and Sears. Touch-Tone is a
trademark of American Telephone
and Telegraph.
TABLE OF CONTENTS
Introduction ii
How to Use this Manual ii
Table of Contents v

PART I. INSTALLATION AND OPERATION

CHAPTER 1_Features and Compatibility
Modem Features 1-1
Compatibility 1-3

CHAPTER 2_Set-Up and Testing
Package Components 2-1
Requirements_Communications Software
2-2
RS-232 Requirements 2-2
Hardware Features 2-3
Power Switch 2-3
Volume Control Switch 2-3
Front Panel Indicators 2-3
DIP Switches 2-4
Installing the Modem 2-4
Testing the Installation 2-6
Troubleshooting 2-8

CHAPTER 3_Quick Start
Basic Operating Requirements 3-1
Software Parameters 3-1
Modem Parameters 3-2
Setting Modem Parameters 3-2
Rate Shifting 3-3
Phone Line Interface 3-3
Serial Port Interface 3-3
Recommended Settings 3-4
Software Settings 3-4
Modem Settings 3-5
Alternative Settings 3-6
Data Format 3-8
Storing Defaults in Nonvolatile Memory
3-9
Dialing 3-10

CHAPTER 4_Interface Controls
Terminology 4-1
Modem Interfaces 4-1
Changing Settings 4-2
Throughput Guidelines 4-2
CCITT/Bell Settings (Bn) 4-4
Error Control (&Mn) 4-4
Auto Answer with Error Control4-5
Online Fallback and Fall Forward4-5
Flow Control Overview 4-6
Transmit Data Buffer Sizes 4-6
Received Data Buffer Size 4-6
Hardware/Software Flow Control Options
4-6
Warning on Software Flow Control4-7
Transmit Data Flow Control (&Hn)4-8
When it is Required 4-8
Received Data Flow Control 4-9
Hardware Control (&Rn) 4-10
Software Control (&In) 4-10
Data Compression (&Kn) 4-11
Data Rate Commands 4-12
Software Requirements 4-13
Serial Port Rate Select (&Bn)4-13
Connection Rate Select (&Nn)4-14
Data Set Ready (&Sn) 4-15
Break Handling (&Yn) 4-15

CHAPTER 5_Internal Controls
Setting/Using Defaults 5-1
Writing Defaults to NVRAM (&W)5-1
Loading the Factory Defaults (&F) 5-2
Reset (Z) 5-3
Storing a Phone Number (&Zs) 5-3
Result Codes 5-4
Response Modes (Vn) 5-4
Quiet Mode (Qn) 5-5
Result Code Options (Xn) 5-5
Additional Result Code Options (&An)
5-8
Local Echo 5-9
Command Mode Local Echo (En) 5-9
Online Local Echo (Fn) 5-10
The Audio Monitor 5-10
Speaker Control (Mn) 5-11
S-Registers 5-11

CHAPTER 6_Dialing and Answering
Before Connecting 6-1
Modulation/Standards 6-1
Setting the Transmission Rate6-1
Data Format 6-2
Error Control 6-3
Placing Calls 6-3
Dial (D) 6-3
Cancel Dialing 6-4
Dial Command Options 6-4
Dialing Type, Pulse or Tone 6-4
Adaptive Dialing (X2OX4) 6-5
Pause (,) 6-5
Slash (/) 6-5
Wait for Another Dial Tone (W)6-5
Dial and Return to Command Mode (;)
6-6
Dialing Letters (") 6-6
Transferring Calls (!) 6-6
Wait for an Answer (@) 6-7
Reversing Originate/Answer
Frequencies (R) 6-7
Dialing the Stored Number (DS)6-8
Redialing (A/) 6-8
Escape Code Operations (+++) 6-8
Modem Response to +++ 6-9
Hanging Up (Hn) 6-9
Returning Online (On) 6-9
Automatic Answering 6-10
Suppressing Auto Answer 6-11
Manual Answer 6-11
Points to Remember 6-11
International Calls 6-12
CCITT/Bell Answer Sequence (Bn)6-12
Guard Tone (&Gn) 6-12
Pulse Dial Make/Break Ratio (&Pn) 6-
12
CCITT V.21_300 bps 6-13
CCITT V.23_1200/75 bps 6-13

Chapter 7_Queries and Help Screens
User Inquiries (In) 7-1
S-Register Query (Sr?) 7-3
Stored Phone Number Query (&Z?)7-3
Help Screens 7-3
Stop/Restart Display 7-3
Cancel Display 7-4
Basic Command Set ($) 7-4
Ampersand Command Set (&$) 7-4
Dialing (D$) 7-5
S-Register Functions (S$) 7-6

PART II. REFERENCE

Appendix A_Error/Flow Control Concepts
Error Control and Throughput Overview
A-1
CCITT V.42 Handshaking A-1
MNP Handshaking A-2
Data Compression A-2
Flow Control A-3
Throughput Guidelines A-3
Online Fallback/Fall Forward A-5
Achievable Throughput StatisticsA-6

Appendix B_Summaries and Tables
Front Panel Indicators B-1
The RS-232 Interface B-2
DIP Switch Summary B-4
Default Settings B-6
S-Register Summary B-9
ASCII Chart B-17

Appendix C_Alphabetical Command Summary

Appendix D_Problems and Solutions
Before the Modems Connect D-1
During Data Transfer D-3
If You Still Have Problems D-4

Appendix E_Fax and Other Operations
Fax Operations E-1
High Speed/Low Speed Protocol E-2
Voice/Data Communications E-5

Appendix F_Modem Testing
Testing with &T F-1
Dial Test_S16=2 F-8

Appendix G_Glossary

Appendix H_Warranty/Service/Certification

Index