Acer V.90 User manual

Modem
User’s Guide
Manuel d’utilisation
Benutzerhandbuch
Mauale dell’utente
Guía del usuario
Part No.: HMU.0550.003
Doc No.: NB235-0110A

Changes may be made periodically to the information in this publication without obligation
to notify any person of such revision or changes. Such changes will be incorporated in new
editions of this manual or supplementary documents and publications. This company makes
no representations or warranties, either expressed or implied, with respect to the contents
hereof and specifically disclaims the implied warranties of merchantability or fitness for a
particular purpose.
Record the model number, serial number, purchase date, and place of purchase information in
the space provided below. The serial number and model number are recorded on the label
affixed to your computer. All correspondence concerning your unit should include the serial
number, model number, and purchase information.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, mechanical, photocopy, recording, or otherwise,
without the prior written permission of Acer Incorporated.
Model number : _________________________________
Serial number: ___________________________________
Purchase date: ___________________________________
Place of purchase: ________________________________
Copyright © 2001 Acer Incorporated.
All Rights Reserved.
Modem User’s Guide
Original Issue: September 2001
Acer and the Acer logo are registered trademarks of Acer Incorporated. Other brands and
product names are trademarks and/or registered trademarks of their respective owners.

1
Modem user’s guide
Introduction
This V.90 modem provides the highest speed access to the Internet and
online services, and especially accelerates downloading of graphics,
telegaming, and collaborative computing. It’s the highest speed
international FAX/modem available. It has worldwide homologation
support which allows you to instantly configure the modem for
telephone lines, so you don’t have to pay additional, up-front, monthly
costs for special lines.
Features
•Highest Internet connection rates, downstream speeds to 56kbps,
backward compatible with V.34 modems
•Data mode capabilities:
•ITU-T V.90 data rates: 28000bps ~ 56000bps
•Ultrahigh compression throughput due to parallel access
directly to the host PC
•ITU-T V.34 extended rates: 33600bps ~ 24000bps
•V.32terbo, V.32bis
•TIA/EIA 602 standard for AT command set
•V.42 error correction (LAPM and MNP)
•V42bis and MNP Class 5 data compression
•Fax mode capabilities:
•ITU-T V.17, V.29, V.27ter, and V.21 Channel 2 standards
•TIA/EIA 578 Class 1 FAX
•Auto-dial, call progress monitor
•Ring, line break detection
•Low Power consumption
•ITU standard V.92 software upgradeability
•Worldwide homologation support
•Software support

2
Note: Execute this program to match the country you are currently
in for the modem to function properly.
Installing and Testing the Modem
Installing and Configuring the Software
Install the communications software according to the software user’s
modem of the same COM port and IRQ line used by the modem. You
may be prompted by the software to configure certain communication
parameters. We suggest the following settings:
Testing Your Modem
In order to check if the modem is installed properly, make sure that the
COM Port and IRQ settings of the modem match the software. Type AT
on your terminal screen and press ENTER. The modem should respond
by displaying an OK (or 0). If it does not, either the modem may not
have been installed properly or the software has not been properly
configured.
Using Your Modem
The communications software included with your modem provides a
user friendly interface to access the data and fax. The modem may also
perform basic communication functions (such as dialing) via the AT
commands. Please refer to “AT Commands” on page 4 for detailed
Item Suggested Setting
Baud rate 115200 bps
Data bits 8
Parity none
Stop bit 1
Flow control Xon./Xoff
initialization string AT&F

3
descriptions. Since the communication software is designed to shield
the user from the difficult and cumbersome AT commands, we strongly
suggest that all modem operations be performed via the software.
Troubleshooting
If you encounter problems while using your modem, please read this
chapter. If you cannot resolve your difficulties after reading this
chapter, contact your dealer or vendor for assistance.
Problem Solution
Modem does not
respond to
commands
1Make sure the communications software is
configured with the correct COM port and IRQ
setting (same COM port and IRQ setting as the
modem). Your communications software will not
be able to send or receive any data if it is not
configured to match the COM and IRQ settings for
the modem.
2Make sure that your modem is initialized correctly.
Your modem may have been improperly initialized
by the software because you have selected an
incorrect modem type. You may also be prompted
to enter an initialization string by the software.
Use AT&F as your initialization string.
Modem dials but
does not connect.
1Make sure the IRQ setting is identical on both the
modem and the software.
2Make sure the phone line is working properly. A
noisy line will prevent proper modem operation.
Modem makes a
connection but no
data appears on
your screen.
1Make sure all communication parameters (baud
rate, data, stop, and parity bits) are properly
configured and are identical on both sides. Be
certain software flow control (Xon-Xoff - default)
is enabled in both the modem and the
communication software.
2Press the ENTER key several times. The remote
system may be waiting to receive your data before
it begins.

4
AT Commands
Basic AT Commands
A summary of the commands implemented by the modem are shown
in the following table labeled “AT Command Set Summary”.
Commands may be executed when the modem is in COMMAND mode.
COMMAND mode is entered upon one of the following conditions:
•After power up
•At the termination of a connection
•After the execution of a command other than dial or answer
commands (ATO or AT&T)
•Upon the receipt of the ESCAPE SEQUENCE (three consecutive
characters matching the contents of S register 2) while in online
mode
•Upon the on-to-off transition of DTR if D1, &D2, or &D3 has been
set
Modem
experiences errors
while on-line with
a remote modem.
1Make sure Call Waiting is turned off.
2Make sure to use Xon/Xoff software flow control
when transferring binary files.
Problem Solution

5
AT Commands Set Summary
Command Description Command Description
A/ Re-execute command &Dn Data terminal ready
(DTR) option
AT=X Write to Selected
S-register
&Fn Restore default
configuration
AT? Read selected
S-register
&Gn Select guard tone
A Answer &Kn Flow control
Bn CCITT/Bell mode &Mn Mode selection
Cn Carrier control
Dn Dial &Pn Pulse dialing control
En Command echo &Qn Mode selection
Hn Disconnect and hook
control
&Tn Test and diagnostics
In Modem identification &Sn Data set ready (DSR)
option
Ln Speaker volume &V Display current
configuration
Mn Speaker control &Wn Store current
configuration
On Return to on-line data
mode
&Yn Select default reset
profile
P Set pulse dialing as
the default
&Zn=x Store telephone
number
Qn Result code control %En Auto fallback/
fallforward control
Sn Access S-register \An Select maximum MNP
block size

6
T Set tone dial as the
default
\Bn Transmit break to
remote
Vn Result code form \Jn DCE rate adjustment
Wn Connect result code
control
\Kn Break control
Xn Extended result code
control
&Cn Data carrier detect
(DCD) control
Yn Long-space disconnect Zn Reset
Command Description Command Description

7
FAX Command Table
Command Function Command Function
+FCLASS=n Set service class +FTH=98 V.17 9600 bps (short
train)
+FCLASS=0 Select data mode
(Default)
+FTH=121 V.17 12000 bps (long
train)
+FCLASS=1 Select FAX Class 1 +FTH=122 V.17 12000 bps
(short train)
+FTS=n Stop transmission and
wait
+FTH=145 V.17 14400 bps (long
train)
+FRS=n Receive silence +FTH=146 V.17 14400 bps
(short train)
+FTH=n Transmit data with
HDLC framing
+FRH=n Receive data with
HDLC framing
+FTH=3 V.21 channel 2 300 bps +FRH=3 V.21 channel 2 300
bps
+FTH=24 V.27ter 2400 bps +FRH=24 V.27ter 2400 bps
+FTH=48 V.27ter 4800 bps +FRH=48 V.27ter 4800 bps
+FTH=72 V.29 7200 bps +FRH=72 V.29 7200 bps
+FTH=96 V.29 9600 bps +FRH=96 V.29 9600 bps
+FTH=73 V.17 7200 bps (long
train)
+FRH=73 V.17 7200 bps (long
train)
+FTH=74 V.17 7200 bps (short
train)
+FRH=74 V.17 7200 bps (short
train)
+FTH=97 V.17 9600 bps (long
train)
+FRH=97 V.17 9600 bps (long
train)
+FRH=98 V.17 9600 bps (short
train)
+FTM=145 V.17 14400 bps (long
train)
+FRH=121 V.17 12000 bps (long
train)
+FTM=146 V.17 14400 bps
(short train)

8
+FRH=122 V.17 12000 bps (short
train)
+FRM=n Receive raw Fax data
+FRH=145 V.17 14000 bps (long
train)
+FRM=24 V.27ter 2400 bps
+FRH=146 V.17 14000 bps (short
train)
+FRM=48 V.27ter 4800 bps
+FTM=n Transmit raw FAX
data
+FRM=72 V.29 7200 bps
+FTM=24 V.27ter 2400 bps +FRM=96 V.29 9600 bps
+FTM=48 V.27ter 4800 bps +FRM=73 V.17 7200 bps (long
train)
+FTM=72 V.29 7200 bps +FRM=74 V.17 7200 bps (short
train)
+FTM=96 V.29 9600 bps +FRM=97 V.17 9600 bps (long
train)
+FTM=73 V.17 7200 bps (long
train)
+FRM=98 V.17 9600 bps (short
train)
+FTM=74 V.17 7200 bps (short
train)
+FRM=121 V.17 12000 bps (long
train)
+FTM=97 V.17 9600 bps (long
train)
+FRM=122 V.17 12000 bps
(short train)
+FTM=98 V.17 9600 bps (short
train)
+FRM=145 V.17 14400 bps (long
train)
+FTM=121 V.17 12000 bps (long
train)
+FRM=146 V.17 14400 bps
(short train)
+FTM=122 V.17 12000 bps (short
train)
+F34=? FAX V.34 Half
Duplex
Command Function Command Function

9
Note: +F34=? ---- +F34=<maxp>[[,<minp>],<prefc>] will report the
current values for the parameters.
Parameters Function
maxp: The maximum allowed primary data rate in multiples of
2400 bps. The valid range is 0 to 14 inclusive, 0 means that
the modem will choose the maximal rate possible.
minp: The minimum allowed primary data rate in multiples of
2400 bps. The valid range is 0 to 14 inclusive. 0 means that
the modem will choose the rate.
prefc: The preferred control channel data rate in multiples of
1200 bps. The valid values are 0, 1, and 2, 0 means that the
modem will choose the rate.

10
S-Registers
Register Default Description Range/Units
S0 0 Number of rings to auto-
answer
0-255/rings
S1 0 Ring counter 0-255/rings
S2 43 Escape character 0-255/ASCII
S3 13 Carriage return character 0-127/ASCII
S4 10 Line feed character 0-127/ASCII
S5 8 Backspace character 0-255/ASCII
S6 3 Wait time for dial tone 3-255/seconds
S7 50 Wait time for carrier 1-255/seconds
S8 2 Pause time for dial delay
modifier
0-255/seconds
S9 Reserved
S10 Reserved
S11 95 DTMF tone duration 50-255/.001
seconds
S12 50 Escape guard time 0-255/.02seconds
S14 138 General bit-mapped
options status
S20 0 Sync underrun fill character 0-255
S21 48 V.24/general bit-mapped
options status
S22 70 Speaker/results bit-mapped
options status
S23 54 General bit-mapped
options status

11
S27 73 General bit-mapped
options status
S28 160 General bit-mapped
options status
S29 70 Flash Dial Modifier Time 0-255/.01 seconds
S30 0 Inactivity Timer 0-255
S31 10 General bit-mapped
options status
105
S32 17(11h) XON character 0-255/ASCII
S33 19(13h) XOFF character 0-255/ASCII
S35 0 Unused
S36 7 LAPM failure control
S37 0 Line connection speed
S48 7 V.42 negotiation control
S49 26(1Ah) Link layer capabilities
S53 47 General bit-mapped
options
S54 2 Blind dialing delay 2-255
S91 10 PSTN transmit attenuation
level
6-25/dBm
S92 10 FAX transmit attenuation
level
6-25/dBm
S93 6 DTMF transmit attenuation
level
5-25/dBm
S94 0 DTMF transmit attenuation
level for high DTMF group
0-25/dBm
Register Default Description Range/Units

12
Result Code Summary
Long-Form Code Short-From Code Description
OK 0 Acknowledges the execution of
a command line.
CONNECT 1 Sent upon connecting when the
line speed is 300 bps and the
modem has been instructed to
report the line speed upon
connecting, or when the range
of result code responses is
restricted by the X command
such that no speed reporting is
allowed.
RING 2 Incoming ring is detected on the
line as per the interface
description.
NO CARRIER 3 When attempting to establish a
call, no ringback is detected
within the period of time
determined by register S7, it is
also used when the modem
auto-disconnects due to loss of
carrier. Under X0, if busy to
detection is enforced, this result
code is used as a response to the
detection of busy or reorder.
Under X0, if dial tone detection
is enforced or selected, this
result code is used to indicate
that a dial tone has not been
detected.

13
ERROR 4 Command line contains a syntax
error, or LU97 is unable to
execute a command contained
in a command line. This code is
issued if a command does not
exist or if the parameter
supplied is outside the
permitted range. Under X0, X1,
X2, and X3, this result is used
instead of DELAYED and
BLACKLISTED.
CONNECT 1200 5 For X1, X2, X3, and X4, line
speed is 1200 bps, and LU97 has
been instructed to report the
line speed upon connecting.
NOT DIALTONE 6 For X2 and X4, LU97 has been
instructed to wait for a dial tone
during dialing, but none is
received.
BUSY 7 For X3 and X4, busy tone
detection is enforced, but a busy
signal is detected when
attempting to originate a call.
DELAYED 88 For X4 and X5, a call fails to
connect, and the number dialed
is considered “delayed” due to
country blacklisting
requirements.
CONNECT 2400 10 Line speed of 2400 bits/s.
CONNECT 4800 11 Line speed of 4800 bits/s.
CONNECT 9600 12 Line speed of 9600 bits/s.
CONNECT 7200 24 Line speed of 7200 bits/s.
CONNECT 12000 25 Line speed of 12000 bits/s.
CONNECT 14400 13 Line speed of 14400 bits/s.
Long-Form Code Short-From Code Description

14
CONNECT 19200 14 Line speed of 19200 bits/s.
CONNECT 38400 28 Line speed of 38400 bits/s.
CONNECT 57600 18 Line speed of 57600 bits/s.
CONNECT 115200 87 Line speed of 115200 bits/s.
CONNECT 230400 Line speed of 230400 bits/s.
CONNECT 460800 Line speed of 460800 bits/s.
CONNECT 921600 Line speed of 921600 bits/s.
CONNECT 16800 86 Line speed of 16800 bits/s.
CONNECT 21600 55 Line speed of 21600 bits/s.
CONNECT 24000 56 Line speed of 24000 bits/s.
CONNECT 26400 57 Line speed of 26400 bits/s.
CONNECT 28800 58 Line speed of 28800 bits/s.
CONNECT 31200 59 Line speed of 31200 bits/s.
CONNECT 33600 60 Line speed of 33600 bits/s.
CONNECT 28000 100 Line speed of 28000 bits/s.
CONNECT 29333 101 Line speed of 29333 bits/s.
CONNECT 30666 102 Line speed of 30666 bits/s.
CONNECT 32000 70 Line speed of 32000 bits/s.
CONNECT 33333 103 Line speed of 33333 bits/s.
CONNECT 34666 104 Line speed of 34666 bits/s.
CONNECT 36000 72 Line speed of 36000 bits/s.
CONNECT 37333 105 Line speed of 37333 bits/s.
CONNECT 38666 106 Line speed of 38666 bits/s.
Long-Form Code Short-From Code Description

15
Note: For X1, X2, X3, and X4, codes (short-form) 9-19, 153-155, 59,
61-64, 68, 70, and 98-122, are sent when LU97 has been instructed
to report the line speed when connecting, and the line speed is as
indicated. These codes are also reported when the API-controlled
virtual DTE speed is reported upon connection. For X1, X2, X3, and
X4, Soft Mode returns these codes upon establishing a V.23
originate or answer connection when it has been instructed to
report the line speed upon connection.
CONNECT 40000 74 Line speed of 40000 bits/s.
CONNECT 41333 107 Line speed of 41333 bits/s.
CONNECT 42666 108 Line speed of 42666 bits/s.
CONNECT 44000 76 Line speed of 44000 bits/s.
CONNECT 45333 109 Line speed of 45333 bits/s.
CONNECT 46666 110 Line speed of 46666 bits/s.
CONNECT 48000 78 Line speed of 48000 bits/s.
CONNECT 49333 111 Line speed of 49333 bits/s.
CONNECT 50666 112 Line speed of 50666 bits/s.
CONNECT 52000 80 Line speed of 52000 bits/s.
CONNECT 53333 113 Line speed of 53333 bits/s.
CONNECT 54666 114 Line speed of 54666 bits/s.
CONNECT 56000 82 Line speed of 56000 bits/s.
Long-Form Code Short-From Code Description

16
FCC Notice
This equipment complies with Part 68 of the FCC rules. Located on the
bottom side of the modem is a label that contains, among other
information, the FCC Registration Number and Ringer Equivalence
Number (REN) for this equipment. Upon request, you must provide this
information to your telephone company.
If your telephone equipment causes harm to the telephone network,
the telephone company may discontinue your service temporarily. If
possible, they will notify you in advance. But, if advance notice is not
practical, you will be notified as soon as possible. You will also be
informed of your right to file a complaint with the FCC.
Your telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect the proper
functioning of your equipment. If they do, you will be notified in
advance to give you an opportunity to maintain uninterrupted
telephone service.
If this equipment should fail to operate properly, disconnect the
equipment from the phone line to determine if it is causing the
problem. If the problem is with the equipment, discontinue use and
contact your dealer or vendor.

17
Modem manuel d’utilisation
Introduction
Ce modem V.90 interne fournit l’accès le plus rapide à Internet et aux
services en ligne, et accélère plus particulièrement le téléchargement
des graphiques,. le jeu en ligne, et l’informatique coopérative. C’est le
fax/modem international le plus rapide sur le marché. Il est homologué
dans le monde entier ce qui vous permet de configurer instantanément
le modem, quel que soit le pays où vous êtes. Ce modem fonctionne sur
les lignes de téléphone standard, il ne vous est donc pas nécessaire de
faire des dépenses supplémentaires, en avance, et mensuelles pour des
lignes spéciales.
Fonctionnalités
•Taux de connexion à Internet le plus élevé, vitesse de
téléchargement allant jusqu’à 56 Kbits/s, rétrocompatible avec les
modems V.34
•Capacités de mode données:
•Taux de transfert des données ITU-T V9.0: 28000 bits/s à 56000
bits/s
•Compression ultra élevée grâce à un accès parallèle
directement à l’ordinateur hôte
•Taux étendus ITU-T V.34: 33600 bits/s à 24000 bits/s
•V.32terbo, V3.2bis
•Standard TIA/EIA 602 pour le jeu de commandes AT
•Correction d’erreurs V.42 (LAPM et MNP)
•Compression de données V.42bis et MNP classe 5
•Capacités de mode télécopie:
•Standards ITU-T V.17, V.29, V.27ter, et V.21 canal 2
•Télécopie TIA/EIA 578 classe 1
•Appel automatique, gestion du déroulement de l’appel
•Détection de sonnerie, de coupure
•Faible consommation
•Prise en charge de la mise à niveau logicielle au standard ITU V.92

18
•Agréments mondiaux
•Prise en charge logicielle
Remarque: Exécutez ce programme pour choisir le pays dans
lequel vous êtes, afin que le modem puisse bien fonctionner.
Installation et test du modemm
Installation et configuration du logiciel
Installez le logiciel de communication en suivant son manuel
d’utilisation et avec le même port COM et la même IRQ que ceux
utilisés par le modem. Vous serez peut-être invité à configurer certains
paramètres de communication. Les valeurs suivantes sont suggérées:
Test de votre modem
Afin de pouvoir vérifier si le modem fonctionne de manière
appropriée, assurez-vous que les valeurs du port COM et de l’IRQ de
votre modem correspondent à celles de votre logiciel. Saisissez AT sur
l’écran de votre terminal et appuyez sur ENTRÉE. Le modem doit
répondre en affichant OK (ou 0). S’il ne le fait pas, soit le modem n’a
pas été bien installé, soit le logiciel n’a pas été bien configuré.
Utilisation de votre modem
Le logiciel de communication inclus avec votre modem fournit une
interface conviviale pour accéder aux données et à la télécopie. Le
modem peut également accomplir des fonctions de communications
de base (telles que la numérotation) par l’intermédiaire des
Élément Valeur suggérée
Vitesse 115200 bits/s
Bits de données 8
Parité aucune
Bits d’arrêt 1
Contrôle de flux Xon./Xoff
Chaîne d’initialisation AT&F