US Robotics COURIER HST User manual

--
[]11ilobotic:;
-------
-COURIER
HST™-
----
MODEM
-
9600
/
2400
/
1200
/
300
BPS, AUTO DIAL, AUTO ANSWER
MODEM
M610
-01
01
-00
WITH USR
HSr
MERROR CONTROL
USER'S
MANUAL
USRobotics, Inc.
8100 North McCormick Blvd.
Skokie.
IL
60076
c
1986.
All
Rights
Re
se
rved

Courier
HST
is
a trademark
of
USRobotics. Inc.
Touch-Tone
and
Di
gital Data Service
(DDS)
are trademarks
of
American Telephone and Telegraph. MCI Mail is a service
mark
of
MCI
Communications.
Incorporated. Microcom Networking Protocol
(MNP)
is
a trademark
of
-"'1icrocom. Inc. Sprint
is
a trademark
of
General Telephone and
Electric.

Limited Warranty
FCC Registration
Connecting to the Telephone Company
Radio and Television Interference
For Canadian Modem Users
How to Use this Manual
COURIER HST
TABLE OF CONTENTS
Vil
Vlll
VIII
IX
X
XI
PART I. INSTALLATION AND OPERATION
CHAPTER I-Introduction
USR-HST
Trellis Coded Modulation
Asymmetric Modulation
Enhanced Error Control
Shorter Response Time
The Courier Product Family
Courier HST Compatibility
CHAPTER 2-Set-Up and Testing
Package Components
Operational Requirements
Assembling the Modem
Testing
Analog Loopback Self-Test
Additional Test Procedures
CHAPTER 3-0perations at a Glance
Data Format
Error Control
Dialing
HST-Compatible, 9600 bps
MNP-Compatible, 2400 or 1200 bps
Non-MNP Compatible, 2400, 1200, 300 bps
Flow Control
Maximum Throughput
High-Speed Channel Turnaround
Link Negotiation
Data Rate Defaults
Nonvolatile
Memory (NRAM)
Phone Number Storage
Dialing Stored
Numbers
1-1
1-1
1-1
1-1
1-1
1-1
1-3
2-1
2-1
2-1
2-2
2-5
2-6
2-7
3-1
3-1
3-1
3-1
3-1
3-1
3-2
3-2
3-2
3-2
3-2
3-3
3-3
3-3
3-3
iii

COURIER HST
IV
Busy Answer
Inactivity
Timer
CHAPTER 4-Interface Controls
Terminology
Error Control
ARQ Retry Timer
Error Control Modes (&Mn)
With Auto Answer
Flow Control
Commands
Transmit Data Flow Control (&Hn)
Received Data Flow Control
Software Control (&In)
Hardware Control (&Rn)
Data Rate
Commands
Optional Fixed Rates
Terminal Rate Select (&Bn)
Link Rate Select (&Nn)
Rate-Select Guidelines
DSR Override (&Sn)
CHAPTER 5-Internal Controls
Setting/Using Defaults
Writing Defaults to
NRAM (&W)
Loading the Factory Defaults (&F)
Resetting to
NRAM Defaults (Z)
Storing Telephone Numbers
(&Zn= s)
Result Codes
Response Modes (Vn)
Result Code Sets
(Xn)
Result Codes Options Table
Options
Summary
Quiet Mode (Qn)
/ARQ Result Codes (&An)
Local Echo
Command Mode Local Echo (En)
Online Local Echo (Fn)
The Audio Monitor
Speaker Control (Mn)
Modem Clock Usage (Kn)
Transmitter Enable/Disable (Cn)
Break Handling (&Yn)
The S-Registers
3-4
3-4
4-1
4-1
4-1
4-1
4-2
4-2
4-2
4-3
4-4
4-4
4-5
4-5
4-5
4-6
4-6
4-6
4-7
5-1
5-1
5-1
5-2
5-2
5-2
5-3
5-3
5-3
5-4
5-4
5-5
5-5
5-5
5-5
5-6
5-6
5-6
5-7
5-7
5-8
5-8

CHAPTER
6---Dialing and Answering
Basic Requirements
Transmission Rate
Error Control
Automatic Retrain
Placing Calls
Dial (D)
Dialing Type (T.
P)
Adaptive Dialing
Pause (,)
Dial and Return to
Command
Mode (;)
Dialing Letters
(")
Transferring Calls (')
Wait for a Second Dial Tone (W)
Wait for an Answer
((
i
t)
Reversing Originate/Answer Frequencies
Canceling Dialing
Redialing
Reexecute the Last
Command
(A/)
Automated Redialing
Continuous Repeat (> )
Continuous Reexecute (A> )
Exiting Repeat Mode
Dialing a Stored Number (DSn)
Pulse Dial Make/Break Ratio (&Pn)
Escape Code Operations ( + + +)
ARQ
Mode Response
Normal Mode Responses
Returning Online
(0)
Hanging UP (Hn)
Automatic Answering
Suppressing Auto Answer
Points to Remember
U.S./CCITT
Answer Tone (Bn)
CHAPTER
7-Queries
and Help Screens
User
Inquiries (In)
S-Register Query (Sr?)
Sl7
S20
COURIER HST
6-1
6-1
6-1
6-1
6-2
6-2
6-2
6-2
6-3
6-3
6-4
6-5
6-5
6-5
6-6
6-6
6-6
6-7
6-7
6-7
6-7
6-7
6-7
6-8
6-8
6-8
6-9
6-9
6-9
6-10
6-10
6-10
6-10
6-11
7-1
7-1
7-3
7-3
7-3
V

COURIER HST
vi
Phone Number Query
(&Z11
'
1)
Help Screens
Basic Command Set
($)
Extended Command Set
(&$)
S-Rcgister Functions (
S$)
Dialing
(0$)
PART
II.
REFERENCE
APPENDIX
A-Error
/Flow Control Concepts
Overview
Throughput
MNP
Service Classes
Error Detection/Retransmission
Flow Control
Example
I-Transmit
Data
Example
2-Received
Data
APPENDIX
B-Summaries
and Tables
The RS-232C Interface, with Pin Definitions
Front End Indicators
DIP
Switch Summary
Default Settings
S-Register Summary
ASCII Chart
APPENDIX
C-Alphabetic
al Command Summary
APPENDIX
0-Problems
and Solutions
If
You Still Have Problems
APPENDIX
E-Additional
Operational Information
Using Both Voice and Data Communications
High Speed/Low Speed Protocol
Retrain Sequence
PBX,
Dedicated Line, and Leased Line Operations
Hewlett Packard Installations
APPENDIX
F-Technical
Specifications
GLOSSARY
INDEX
7-4
7-4
7-4
7-5
7-5
7-6
A-1
A-1
A-1
A-1
A-2
A-3
A-4
A-4
B-1
B-1
.I
B-2. I
B-3. I
8-4.
I
B-5. I
B-6. I
C-1
D-1
0-3
E-1
E-1
.I
E-2. I
E-3. l
E-4. 1
E-5. I
F-1
G-1

LIMITED
WARRANTY
COURIER HST
U.S. Robotics. Inc.. 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
two
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. mis-
used.
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
IM-
PLIED,
INCLUDING ANY
IMPLIED
WARRANTY
OF MERCHANTABILITY
OR
FITNESS
FOR
A
PAR-
TICULAR
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
inci-
dental
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, and you may also have
other
rights
which vary from state to state.
To
obtain service under this warranty. contact the U.S.
Robotics Technical Support Department at
800
/982-5151
(in Illinois, 312/
982-5151),
or
by mail at 8100 North
McCormick
Blvd.,
Skokie, Illinois. 60076. You will be
given a Return Materials Authorization
(RMA)
number
to
help us keep track
of
your warranty request.
Once
you have
received your
RMA
number,
take
or
mail the product, post-
age prepaid, to U.S. Robotics at the above address. Include
proof
of
the date
of
purchase. IMPORTANT: If you ship
your unit, pack it securely, be sure your
RMA
number
is
visible on the outside
of
the
package,
and ship it charges
prepaid and insured.
>-
Should you
encounter
problems in operating this device.
follow the instructions in Appendix D in Part lI
of
this man-
ual.
The
Appendix contains solutions to operating problems
as well as procedures to follow
if
there
is
an apparent
modem
malfunction.
vii

COURIER HST
FCC
REGISTRATION
viii
CONNECTING
TO THE
TELEPHONE
COMPANY
FCC68: CJE794-l l
323-DM
-E
RINGER
EQUIVALENCE:
048
FCCl5:
CJE
794FAST
It
is
not necessary to notify the telephone
comp
any before
in
stalling the
modem
.
Howev
er. the telephone
co
mpany may
request the telephone number(s) to which the Courier
is
con-
nected and the FCC information printed above.
If the telephone co
mp
any has any ques
ti
ons
or
raises prob-
lems, ask them to
ca
ll
the T
ec
hnical
Supp
o
rt
Department.
USRobotics. Inc.. 800/982-5151 (in Illinois. 312/982-5151).
If the modem
is
malfunctioning.
it
may affect the telephone
lines. In this
case.
dis
connect
the modem until the source
of
the difficulty
is
traced. Do not use the mo
dem
on party
or
co
in
telephone lines.

RADIO
AND
TELEVISION
INTERFERENCE
COURIER HST
This equipment generates and uses radio frequency energy
and if not installed and used properly.
in
strict accordance
with the
manufacturer's
instructions, may cause interference
to radio and television reception. The Courier
HST
has been
tested and found to comply with the limits for a Class B
computing device
in
accordance with the specifications
in
Subpart J
of
Part
15
of
FCC
rules. which are designed to
provide reasonable protection against such interference in
a residential installation.
However, there
is
no guarantee that interference will not
occur
in
a particular installation.
If
this device does cause
interference to radio
or
television reception, which you can
determine by monitoring reception when the modem
is
on
and off, try to correct the problem with one
or
more
of
the
following measures.
Reorient the receiving antenna.
Relocate the
computer
with respect to the receiver.
Relocate the
computer
and/or the receiver so that they are
on separate branch circuits.
If necessary, consult your dealer
or
an experienced radio/
television technician for additional suggestions. You may
find the following booklet, prepared by the Federal
Commu-
nications
Commission,
helpful:
How to Identify and Resolve Radio-TV Interference
Problems
Stock No.
004-000-0345-4
U.S.
Government
Printing Office
Washington,
DC
20402
ix