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Modem User’s Guide Manuel d’utilisation Benutzerhandbuch Mauale dell’utente Guí

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 1 Make 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. 2 Make 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. 1 Make sure the IRQ setting is identical on both the modem and the software. 2 Make 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. 1 Make 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. 2 Press 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. 1 Make sure Call Waiting is turned off. 2 Make 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) uploads/Management/ modem-user-guide.pdf