Specifications

Copyright and Technical Support
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342C) 2
Universal Socket Connectivity Developer's Guide
PN S000342C, Version C
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-
Tech Systems, Inc. All rights reserved.
Copyright © 2004 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically
disclaim any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech
Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof
without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.
Revisions
Revision Level Date Description
A 06/17/04 Initial release of Universal Socket Connectivity hardware guide.
B 10/01/04 Add SocketWireless with Bluetooth Technology chapter. Changed pinouts:
TXCLK to TCLK and RXCLK to RCLK. Added the schematics for the MT128SMI.
Added note to the SocketEthernet IP filtering drawing.
C 11/11/04 Revised GSM/GPRS mechanical drawing. More information location information
about AT commands, fax commands, and voice commands. Update Bluetooth
chapter.
Trademarks
Trademarks of Multi-Tech Systems, Inc. are SocketModem, SocketWireless, and the Multi-Tech logo.
Microsoft and Windows are registered trademarks or trademarks of Microsoft Corporation in the United States
and/or other countries. Bluetooth is a registered trademark of Bluetooth.
Patents
This device covered by one or more of the following patents: 6,031,867; 6,012,113; 6,009,082; 5,905,794; 5,864,560;
5,815,567; 5,815,503; 5,812,534; 5,809,068; 5,790,532; 5,764,628; 5,764,627; 5,754,589; 5,724,356; 5,673,268;
5,673,257; 5,644,594; 5,628,030; 5,619,508; 5,617,423; 5,600,649; 5,592,586; 5,577,041; 5,574,725; 5,559,793;
5,546,448; 5,546,395; 5,535,204; 5,500,859; 5,471,470; 5,463,616; 5,453,986; 5,452,289; 5,450,425; 5,355,365;
5,309,562; 5,301,274. Other Patents Pending.
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
Technical Support
Country By Email By Phone
France: [e-mail] (33) 1-64 61 09 81
India: [e-mail] 91 (124) 6340778
U.K.: [e-mail] (44) 118 959 7774
U.S. and Canada: [e-mail] [phone]
Rest of the World: [e-mail] [phone]
Internet Address: http://www.multitech.com