Modem
User’s Guide Manuel d’utilisation Benutzerhandbuch Mauale dell’utente Guía del usuario
Part No.: HMU.0550.003
Doc No.: NB235-0110A
Copyright © 2001 Acer Incorporated.
All Rights Reserved.
Modem User’s Guide
Original Issue: September 2001
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: ________________________________
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
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 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:
Item |
Suggested Setting |
|
|
Baud rate |
115200 bps |
|
|
Data bits |
8 |
|
|
Parity |
none |
|
|
Stop bit |
1 |
|
|
Flow control |
Xon./Xoff |
|
|
initialization string |
AT&F |
|
|
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
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 |
1 |
Make sure the IRQ setting is identical on both the |
does not connect. |
|
modem and the software. |
|
2 |
Make sure the phone line is working properly. A |
|
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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
Problem |
Solution |
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Modem |
1 |
Make sure Call Waiting is turned off. |
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experiences errors |
2 |
Make sure to use Xon/Xoff software flow control |
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while on-line with |
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when transferring binary files. |
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a remote modem. |
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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
5
AT Commands Set Summary
Command |
Description |
Command |
Description |
|
|
|
|
A/ |
Re-execute command |
&Dn |
Data terminal ready |
|
|
|
(DTR) option |
|
|
|
|
AT=X |
Write to Selected |
&Fn |
Restore default |
|
S-register |
|
configuration |
|
|
|
|
AT? |
Read selected |
&Gn |
Select guard tone |
|
S-register |
|
|
|
|
|
|
A |
Answer |
&Kn |
Flow control |
|
|
|
|
Bn |
CCITT/Bell mode |
&Mn |
Mode selection |
|
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|
Cn |
Carrier control |
|
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|
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Dn |
Dial |
&Pn |
Pulse dialing control |
|
|
|
|
En |
Command echo |
&Qn |
Mode selection |
|
|
|
|
Hn |
Disconnect and hook |
&Tn |
Test and diagnostics |
|
control |
|
|
|
|
|
|
In |
Modem identification |
&Sn |
Data set ready (DSR) |
|
|
|
option |
|
|
|
|
Ln |
Speaker volume |
&V |
Display current |
|
|
|
configuration |
|
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|
Mn |
Speaker control |
&Wn |
Store current |
|
|
|
configuration |
|
|
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On |
Return to on-line data |
&Yn |
Select default reset |
|
mode |
|
profile |
|
|
|
|
P |
Set pulse dialing as |
&Zn=x |
Store telephone |
|
the default |
|
number |
|
|
|
|
Qn |
Result code control |
%En |
Auto fallback/ |
|
|
|
fallforward control |
|
|
|
|
Sn |
Access S-register |
\An |
Select maximum MNP |
|
|
|
block size |
|
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6
Command |
Description |
Command |
Description |
|
|
|
|
T |
Set tone dial as the |
\Bn |
Transmit break to |
|
default |
|
remote |
|
|
|
|
Vn |
Result code form |
\Jn |
DCE rate adjustment |
|
|
|
|
Wn |
Connect result code |
\Kn |
Break control |
|
control |
|
|
|
|
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|
Xn |
Extended result code |
&Cn |
Data carrier detect |
|
control |
|
(DCD) control |
|
|
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|
Yn |
Long-space disconnect |
Zn |
Reset |
|
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7
FAX Command Table
Command |
Function |
Command |
Function |
||
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|
|
|
|
+FCLASS=n |
Set service class |
+FTH=98 |
V.17 |
9600 bps (short |
|
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train) |
|
|
|
|
|
||
+FCLASS=0 |
Select data mode |
+FTH=121 |
V.17 12000 bps (long |
||
|
(Default) |
|
train) |
||
|
|
|
|
|
|
+FCLASS=1 |
Select FAX Class 1 |
+FTH=122 |
V.17 |
12000 bps |
|
|
|
|
|
(short train) |
|
|
|
|
|
||
+FTS=n |
Stop transmission and |
+FTH=145 |
V.17 14400 bps (long |
||
|
wait |
|
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train) |
|
|
|
|
|
|
|
+FRS=n |
Receive silence |
+FTH=146 |
V.17 |
14400 bps |
|
|
|
|
|
(short train) |
|
|
|
|
|
||
+FTH=n |
Transmit data with |
+FRH=n |
Receive data with |
||
|
HDLC framing |
|
HDLC framing |
||
|
|
|
|
||
+FTH=3 |
V.21 channel 2 300 bps |
+FRH=3 |
V.21 channel 2 300 |
||
|
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|
|
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 |
||
|
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|
|
|
|
+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 |
+FRH=73 |
V.17 |
7200 bps (long |
|
train) |
|
train) |
||
|
|
|
|
|
|
+FTH=74 |
V.17 |
7200 bps (short |
+FRH=74 |
V.17 |
7200 bps (short |
|
train) |
|
train) |
||
|
|
|
|
|
|
+FTH=97 |
V.17 |
9600 bps (long |
+FRH=97 |
V.17 |
9600 bps (long |
|
train) |
|
train) |
||
|
|
|
|
|
|
+FRH=98 |
V.17 |
9600 bps (short |
+FTM=145 |
V.17 14400 bps (long |
|
|
train) |
|
train) |
||
|
|
|
|
|
|
+FRH=121 |
V.17 |
12000 bps (long |
+FTM=146 |
V.17 |
14400 bps |
|
train) |
|
(short train) |
||
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|
|
|
|
8
Command |
Function |
Command |
Function |
||
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|
|
|
|
+FRH=122 |
V.17 |
12000 bps (short |
+FRM=n |
Receive raw Fax data |
|
|
train) |
|
|
|
|
|
|
|
|
|
|
+FRH=145 |
V.17 |
14000 bps (long |
+FRM=24 |
V.27ter 2400 bps |
|
|
train) |
|
|
|
|
|
|
|
|
|
|
+FRH=146 |
V.17 |
14000 bps (short |
+FRM=48 |
V.27ter 4800 bps |
|
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train) |
|
|
|
|
|
|
|
|
|
|
+FTM=n |
Transmit raw FAX |
+FRM=72 |
V.29 |
7200 bps |
|
|
data |
|
|
|
|
|
|
|
|
|
|
+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 |
|
|
|
|
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train) |
|
|
|
|
|
|
|
+FTM=72 |
V.29 |
7200 bps |
+FRM=74 |
V.17 |
7200 bps (short |
|
|
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train) |
|
|
|
|
|
|
|
+FTM=96 |
V.29 |
9600 bps |
+FRM=97 |
V.17 |
9600 bps (long |
|
|
|
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train) |
|
|
|
|
|
|
|
+FTM=73 |
V.17 |
7200 bps (long |
+FRM=98 |
V.17 |
9600 bps (short |
|
train) |
|
train) |
||
|
|
|
|
|
|
+FTM=74 |
V.17 |
7200 bps (short |
+FRM=121 |
V.17 12000 bps (long |
|
|
train) |
|
train) |
||
|
|
|
|
|
|
+FTM=97 |
V.17 |
9600 bps (long |
+FRM=122 |
V.17 |
12000 bps |
|
train) |
|
(short train) |
||
|
|
|
|
|
|
+FTM=98 |
V.17 |
9600 bps (short |
+FRM=145 |
V.17 14400 bps (long |
|
|
train) |
|
train) |
||
|
|
|
|
|
|
+FTM=121 |
V.17 |
12000 bps (long |
+FRM=146 |
V.17 |
14400 bps |
|
train) |
|
(short train) |
||
|
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|
|
|
|
+FTM=122 |
V.17 |
12000 bps (short |
+F34=? |
FAX V.34 Half |
|
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train) |
|
Duplex |
||
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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 |
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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 |
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modem will choose the rate. |
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|
10
S-Registers
Register |
Default |
Description |
Range/Units |
|
|
|
|
S0 |
0 |
Number of rings to auto- |
0-255/rings |
|
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answer |
|
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S1 |
0 |
Ring counter |
0-255/rings |
|
|
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|
S2 |
43 |
Escape character |
0-255/ASCII |
|
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S3 |
13 |
Carriage return character |
0-127/ASCII |
|
|
|
|
S4 |
10 |
Line feed character |
0-127/ASCII |
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|
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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 |
|
|
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|
S8 |
2 |
Pause time for dial delay |
0-255/seconds |
|
|
modifier |
|
|
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S9 |
|
Reserved |
|
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S10 |
|
Reserved |
|
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|
|
S11 |
95 |
DTMF tone duration |
50-255/.001 |
|
|
|
seconds |
|
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|
|
S12 |
50 |
Escape guard time |
0-255/.02seconds |
|
|
|
|
S14 |
138 |
General bit-mapped |
|
|
|
options status |
|
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|
|
S20 |
0 |
Sync underrun fill character |
0-255 |
|
|
|
|
S21 |
48 |
V.24/general bit-mapped |
|
|
|
options status |
|
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|
|
S22 |
70 |
Speaker/results bit-mapped |
|
|
|
options status |
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|
|
S23 |
54 |
General bit-mapped |
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|
options status |
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|
11
Register |
Default |
Description |
Range/Units |
|
|
|
|
S27 |
73 |
General bit-mapped |
|
|
|
options status |
|
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|
|
|
S28 |
160 |
General bit-mapped |
|
|
|
options status |
|
|
|
|
|
S29 |
70 |
Flash Dial Modifier Time |
0-255/.01 seconds |
|
|
|
|
S30 |
0 |
Inactivity Timer |
0-255 |
|
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|
|
S31 |
10 |
General bit-mapped |
105 |
|
|
options status |
|
|
|
|
|
S32 |
17(11h) |
XON character |
0-255/ASCII |
|
|
|
|
S33 |
19(13h) |
XOFF character |
0-255/ASCII |
|
|
|
|
S35 |
0 |
Unused |
|
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|
|
S36 |
7 |
LAPM failure control |
|
|
|
|
|
S37 |
0 |
Line connection speed |
|
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|
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S48 |
7 |
V.42 negotiation control |
|
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|
|
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S49 |
26(1Ah) |
Link layer capabilities |
|
|
|
|
|
S53 |
47 |
General bit-mapped |
|
|
|
options |
|
|
|
|
|
S54 |
2 |
Blind dialing delay |
2-255 |
|
|
|
|
S91 |
10 |
PSTN transmit attenuation |
6-25/dBm |
|
|
level |
|
|
|
|
|
S92 |
10 |
FAX transmit attenuation |
6-25/dBm |
|
|
level |
|
|
|
|
|
S93 |
6 |
DTMF transmit attenuation |
5-25/dBm |
|
|
level |
|
|
|
|
|
S94 |
0 |
DTMF transmit attenuation |
0-25/dBm |
|
|
level for high DTMF group |
|
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|
12
Result Code Summary
Long-Form Code |
Short-From Code |
Description |
|
|
|
OK |
0 |
Acknowledges the execution of |
|
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a command line. |
|
|
|
CONNECT |
1 |
Sent upon connecting when the |
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line speed is 300 bps and the |
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modem has been instructed to |
|
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report the line speed upon |
|
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connecting, or when the range |
|
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of result code responses is |
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restricted by the X command |
|
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such that no speed reporting is |
|
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allowed. |
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|
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RING |
2 |
Incoming ring is detected on the |
|
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line as per the interface |
|
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description. |
|
|
|
NO CARRIER |
3 |
When attempting to establish a |
|
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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 |
|
|
|
Long-Form Code |
Short-From Code |
Description |
|
|
|
ERROR |
4 |
Command line contains a syntax |
|
|
error, or LU97 is unable to |
|
|
execute a command contained |
|
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in a command line. This code is |
|
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issued if a command does not |
|
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exist or if the parameter |
|
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supplied is outside the |
|
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permitted range. Under X0, X1, |
|
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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 |
|
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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. |
|
|
|
14
Long-Form Code |
Short-From Code |
Description |
|
|
|
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. |
|
|
|
15
Long-Form Code |
Short-From Code |
Description |
|
|
|
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. |
|
|
|
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.
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
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 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:
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 |
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
19
commandes AT. Veuillez consulter “Commandes AT” à la page 20 pour des descriptions détaillées. Le logiciel de communication étant conçu pour protéger l’utilisateur de la difficulté pesante des commandes AT, il est fortement conseillé de faire fonctionner le modem par l’intermédiaire du logiciel.
Dépannage
Si vous avez des problèmes d’utilisation avec votre modem, veuillez lire ce chapitre. Si vous ne pouvez pas résoudre vos difficultés après la
lecture de ce chapitre, contactez votre revendeur pour assistance.
Problème |
Solution |
|
|
Le modem ne |
1 Assurez-vous que le logiciel de communication est |
répond pas aux |
configuré avec les bonnes valeurs pour le port COM |
commandes. |
et l’IRQ (mêmes valeurs de port COM et d’IRQ que |
|
pour le modem). Votre logiciel de communication ne |
|
pourra pas envoyer ni recevoir de données s’il n’est |
|
pas configuré en accord en accord avec les valeurs de |
|
COM et d’IRQ du modem. |
|
2 Assurez-vous que votre modem est bien initialisé. |
|
Votre modem peut avoir été initialisé de manière |
|
inappropriée par le logiciel parce que vous avez |
|
sélectionné un mauvais type de modem. Vous pouvez |
|
également être invité à entrer une chaîne |
|
d’initialisation par le logiciel. Utilisez la chaîne |
|
d’initialisation AT&F. |
|
|
Le modem |
1 Assurez-vous que la valeur d’IRQ est la même pour le |
numérote mais ne |
modem comme pour le logiciel. |
se connecte pas. |
2 Assurez-vous que la ligne téléphonique fonctionne |
|
de manière appropriée. Une ligne avec des parasites |
|
empêche un bon fonctionnement du modem. |
Le modem établit une connexion, mais aucune donnée n’apparaît à l’écran.
1Assurez-vous que les paramètres de communication (vitesse de transfert, bits de données et d’arrêt, parité) sont bien configurés et identiques des deux côtés. Assurez-vous que le contrôle du flux logiciel du modem (XON/XOFF par défaut) est activé sur le modem comme sur le logiciel de communication.
2Appuyez sur la touche ENTRÉE plusieurs fois. Le modem à distance attend peut-être de recevoir vos données avant de commencer.
Le modem rencontre |
1 |
Assurez-vous que la fonction de signal d’appel est |
des erreurs lors de la |
|
désactivée. |
communication avec |
2 |
Assurez-vous d’utiliser le contrôle de flux logiciel |
un modem à |
|
Xon/Xoff lors du transfert des fichiers binaires. |
distance.
20
Commandes AT de base
Un résumé des commandes prises en charge par le modem est présenté dans le tableau suivant intitulé “Résumé du jeu de commandes AT”. Les commandes peuvent être exécutées lorsque le modem est en mode COMMAND. Le mode COMMAND est accédé lors d’une des conditions suivantes:
•Après la mise sous tension
•À la fin d’une connexion
•Après l’exécution d’une commande autre que la numérotation ou d’une commande de réponse (ATO ou AT&T)
•À la réception d’une séquence d’échappement (trois caractères consécutifs correspondant au contenu du registre S 2) pendant le mode en ligne
•Lors d’une transition marche à arrêt de DTR si D1, &D2 ou &D3 a été défini
21
Résumé du jeu de commandes AT
Commande |
Description |
Commande |
Description |
|
|
|
|
A/ |
Répète la dernière |
&Dn |
Option de contrôle |
|
commande |
|
du terminal données |
|
|
|
prêt |
|
|
|
|
AT=X |
Écrit dans le registre S |
&Fn |
Retourne à la |
|
sélectionné |
|
configuration par |
|
|
|
défaut |
|
|
|
|
AT? |
Lit le registre S |
&Gn |
Sélectionne la |
|
sélectionné |
|
tonalité de grade |
|
|
|
|
A |
Réponse |
&Kn |
Contrôle de flux |
|
|
|
|
Bn |
Mode CCITT/Bell |
&Mn |
Sélection du mode |
|
|
|
|
Cn |
Contrôle de la |
|
|
|
porteuse |
|
|
|
|
|
|
Dn |
Numérotation |
&Pn |
Contrôle de la |
|
|
|
numérotation par |
|
|
|
impulsion |
|
|
|
|
En |
Écho de la commande |
&Qn |
Sélection du mode |
|
|
|
|
Hn |
Contrôle du |
&Tn |
Test et diagnostics |
|
décrochement et du |
|
|
|
raccrochement |
|
|
|
|
|
|
In |
Identification du |
&Sn |
Option de poste de |
|
modem |
|
données prêt (PDP) |
|
|
|
|
Ln |
Volume du haut- |
&V |
Affiche la |
|
parleur |
|
configuration |
|
|
|
actuelle |
|
|
|
|
Mn |
Contrôle du haut- |
&Wn |
Enregistre la |
|
parleur |
|
configuration |
|
|
|
actuelle |
|
|
|
|
On |
Retourne au mode de |
&Yn |
Sélectionne le profil |
|
données en ligne |
|
de réinitialisation par |
|
|
|
défaut |
|
|
|
|
22
Commande |
Description |
Commande |
Description |
|
|
|
|
P |
Numérotation par |
&Zn=x |
Enregistre le numéro |
|
impulsion par défaut |
|
de téléphone |
|
|
|
|
Qn |
Contrôle du code de |
%En |
Contrôle |
|
résultat |
|
automatique reprise/ |
|
|
|
abandon |
|
|
|
|
Sn |
Accède au registre S |
\An |
Sélectionne la taille |
|
|
|
maximale de bloc |
|
|
|
MNP |
|
|
|
|
T |
Numérotation par |
\Bn |
Transmet la coupure |
|
tonalité par défaut |
|
à distance |
|
|
|
|
Vn |
Forme du code de |
\Jn |
Ajustement du taux |
|
résultat |
|
de I’ETCD |
|
|
|
|
Wn |
Contrôle du code de |
\Kn |
Contrôle de la |
|
résultat de connexion |
|
coupure |
|
|
|
|
Xn |
Contrôle du code de |
&Cn |
Contrôle de détection |
|
résultat étendu |
|
de la porteuse |
|
|
|
|
Yn |
Déconnexion à long |
Zn |
Réinitialisation |
|
espacement |
|
|
|
|
|
|
23
Tableau des commandes FAX
Commande |
Fonction |
Commande |
Fonction |
||
|
|
|
|
|
|
+FCLASS=n |
Sélection de la classe de |
+FTH=98 |
V.17 |
9600 bits/s |
|
|
service |
|
(porteuse courte) |
||
|
|
|
|
|
|
+FCLASS=0 |
Sélection du mode |
+FTH=121 |
V.17 |
12000 bits/s |
|
|
données (Défaut) |
|
(porteuse longue) |
||
|
|
|
|
|
|
+FCLASS=1 |
Sélection du FAX |
+FTH=122 |
V.17 |
1200 bits/s |
|
|
Classe 1 |
|
(porteuse courte) |
||
|
|
|
|
|
|
+FTS=n |
Arrêt de la transmission |
+FTH=145 |
V.17 |
14400 bits/s |
|
|
et pause |
|
(porteuse longue) |
||
|
|
|
|
|
|
+FRS=n |
Réception d’un silence |
+FTH=146 |
V.17 |
14400 bits/s |
|
|
|
|
|
(porteuse courte) |
|
|
|
|
|
||
+FTH=n |
Transmission des |
+FRH=n |
Réception des données |
||
|
données en cadre HDLC |
|
en cadre HDLC |
||
|
|
|
|
||
+FTH=3 |
V.21 canal 2300 bits/s |
+FRH=3 |
V.21 canal 2300 bits/s |
||
|
|
|
|
||
+FTH=24 |
V.27ter 2400 bits/s |
+FRH=24 |
V.27ter 2400 bits/s |
||
|
|
|
|
||
+FTH=48 |
V.27ter 4800 bits/s |
+FRH=48 |
V.27ter 4800 bits/s |
||
|
|
|
|
|
|
+FTH=72 |
V.29 |
7200 bits/s |
+FRH=72 |
V.29 |
7200 bits/s |
|
|
|
|
|
|
+FTH=96 |
V.29 |
9600 bits/s |
+FRH=96 |
V.29 |
9600 bits/s |
|
|
|
|
|
|
+FTH=73 |
V.17 |
7200 bits/s |
+FRH=73 |
V.17 |
7200 bits/s |
|
(porteuse longue) |
|
(porteuse longue) |
||
|
|
|
|
|
|
+FTH=74 |
V.17 |
7200 bits/s |
+FRH=74 |
V.17 |
7200 bits/s |
|
(porteuse courte) |
|
(porteuse courte) |
||
|
|
|
|
|
|
+FTH=97 |
V.17 |
9600 bits/s |
+FRH=97 |
V.17 |
9600 bits/s |
|
(porteuse longue) |
|
(porteuse longue) |
||
|
|
|
|
|
|
+FRH=98 |
V.17 |
9600 bits/s |
+FTM=145 |
V.17 |
14400 bits/s |
|
(porteuse courte) |
|
(porteuse longue) |
||
|
|
|
|
|
|
+FRH=121 |
V.17 |
12000 bits/s |
+FTM=146 |
V.17 |
14400 bits/s |
|
(porteuse longue) |
|
(porteuse courte) |
||
|
|
|
|
||
+FRH=122 |
V.17 12000 bits/s |
+FRM=n |
Réception de |
||
|
(porteuse courte) |
|
données FAX brutes |
||
|
|
|
|
|
|
+FRH=145 |
V.17 |
14400 bits/s |
+FRM=24 |
V.27ter 2400 bits/s |
(porteuse longue)