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 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 ITU-T V.17, V.29, V.27ter, and V.21 Channel 2 standards TIA/EIA 578 Class 1 FAX Fax mode capabilities: 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: Item Baud rate Data bits Parity Stop bit Flow control initialization string Suggested Setting 115200 bps 8 none 1 Xon./Xoff 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 Modem does not respond to commands Solution 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 Problem Modem experiences errors while on-line with a remote modem. Solution 1 Make sure Call Waiting is turned off. 2 Make sure to use Xon/Xoff software flow control when transferring binary files. 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 · 5 AT Commands Set Summary Command A/ Description Re-execute command Command &Dn Description Data terminal ready (DTR) option Restore default configuration Select guard tone AT=X Write to Selected S-register &Fn AT? Read selected S-register &Gn A Bn Cn Dn En Hn Answer CCITT/Bell mode Carrier control Dial Command echo Disconnect and hook control Modem identification &Kn &Mn Flow control Mode selection &Pn &Qn &Tn Pulse dialing control Mode selection Test and diagnostics In &Sn Data set ready (DSR) option Display current configuration Store current configuration Select default reset profile Store telephone number Auto fallback/ fallforward control Select maximum MNP block size Ln Speaker volume &V Mn Speaker control &Wn On Return to on-line data mode Set pulse dialing as the default Result code control &Yn P &Zn=x Qn %En Sn Access S-register \An 6 Command T Description Set tone dial as the default Result code form Connect result code control Extended result code control Long-space disconnect Command \Bn Description Transmit break to remote DCE rate adjustment Break control Vn Wn \Jn \Kn Xn &Cn Data carrier detect (DCD) control Reset Yn Zn 7 FAX Command Table Command +FCLASS=n Function Set service class Command +FTH=98 Function V.17 9600 bps (short train) V.17 12000 bps (long train) V.17 12000 bps (short train) V.17 14400 bps (long train) V.17 14400 bps (short train) Receive data with HDLC framing V.21 channel 2 300 bps V.27ter 2400 bps V.27ter 4800 bps V.29 7200 bps V.29 9600 bps V.17 7200 bps (long train) V.17 7200 bps (short train) V.17 9600 bps (long train) V.17 14400 bps (long train) V.17 14400 bps (short train) +FCLASS=0 Select data mode (Default) +FTH=121 +FCLASS=1 Select FAX Class 1 +FTH=122 +FTS=n Stop transmission and wait Receive silence +FTH=145 +FRS=n +FTH=146 +FTH=n Transmit data with HDLC framing +FRH=n +FTH=3 V.21 channel 2 300 bps +FRH=3 +FTH=24 +FTH=48 +FTH=72 +FTH=96 +FTH=73 V.27ter 2400 bps V.27ter 4800 bps V.29 7200 bps V.29 9600 bps V.17 7200 bps (long train) V.17 7200 bps (short train) V.17 9600 bps (long train) V.17 9600 bps (short train) V.17 12000 bps (long train) +FRH=24 +FRH=48 +FRH=72 +FRH=96 +FRH=73 +FTH=74 +FRH=74 +FTH=97 +FRH=97 +FRH=98 +FTM=145 +FRH=121 +FTM=146 8 Command +FRH=122 Function V.17 12000 bps (short train) Command +FRM=n Function 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 +FTM=48 V.27ter 2400 bps V.27ter 4800 bps +FRM=96 +FRM=73 V.29 9600 bps 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) V.17 12000 bps (short train) V.17 14400 bps (long train) V.17 14400 bps (short train) FAX V.34 Half Duplex +FTM=97 V.17 9600 bps (long train) +FRM=122 +FTM=98 V.17 9600 bps (short train) +FRM=145 +FTM=121 V.17 12000 bps (long train) +FRM=146 +FTM=122 V.17 12000 bps (short train) +F34=? 9 Note: +F34=? ---- +F34=[[,],] will report the current values for the parameters. Parameters maxp: Function 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. 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. 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. minp: prefc: 10 S-Registers Register S0 Default 0 Description Number of rings to autoanswer Ring counter Escape character Carriage return character Line feed character Backspace character Wait time for dial tone Wait time for carrier Pause time for dial delay modifier Reserved Reserved 95 DTMF tone duration 50-255/.001 seconds 0-255/.02seconds Range/Units 0-255/rings S1 S2 S3 S4 S5 S6 S7 S8 0 43 13 10 8 3 50 2 0-255/rings 0-255/ASCII 0-127/ASCII 0-127/ASCII 0-255/ASCII 3-255/seconds 1-255/seconds 0-255/seconds S9 S10 S11 S12 S14 50 138 Escape guard time General bit-mapped options status Sync underrun fill character V.24/general bit-mapped options status Speaker/results bit-mapped options status General bit-mapped options status S20 S21 0 48 0-255 S22 70 S23 54 11 Register S27 Default 73 Description General bit-mapped options status General bit-mapped options status Flash Dial Modifier Time Inactivity Timer General bit-mapped options status XON character XOFF character Unused LAPM failure control Line connection speed V.42 negotiation control Link layer capabilities General bit-mapped options Blind dialing delay PSTN transmit attenuation level FAX transmit attenuation level DTMF transmit attenuation level DTMF transmit attenuation level for high DTMF group Range/Units S28 160 S29 S30 S31 70 0 10 0-255/.01 seconds 0-255 105 S32 S33 S35 S36 S37 S48 S49 S53 17(11h) 19(13h) 0 7 0 7 26(1Ah) 47 0-255/ASCII 0-255/ASCII S54 S91 2 10 2-255 6-25/dBm S92 10 6-25/dBm S93 6 5-25/dBm S94 0 0-25/dBm 12 Result Code Summary Long-Form Code OK Short-From Code 0 Description Acknowledges the execution of a command line. 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. Incoming ring is detected on the line as per the interface description. 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. CONNECT 1 RING 2 NO CARRIER 3 13 Long-Form Code ERROR Short-From Code 4 Descri ...