SocketModem™ CDMA Embedded Data/Fax Wireless Modem MTSMC-C A Global CDMA 2000 1xRTT, 800/1900 MHz Wireless Modem Developer’s Guide
SocketModem CDMA Developer’s Guide MTSMC-C – A Global CDMA 2000 1xRTT, 800/1900 MHz Wireless Modem PN S000298B, Version B 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 © 2003-2004, by Multi-Tech Systems, Inc. Multi-Tech Systems, Inc.
Table of Contents Table of Contents CHAPTER 1 – PRODUCT DESCRIPTION AND SPECIFICATIONS .......................................................... 4 PRODUCT DESCRIPTION ............................................................................................................................... 4 APPLICATIONS.............................................................................................................................................. 4 PRODUCT FEATURES .......................................
Chapter 1 – Product Description and Specifications Chapter 1 – Product Description and Specifications Product Description The Multi-Tech SocketModem CDMA is a complete, ready-to-integrate, embedded wireless modem. Designed for global use, it offers standards-based multi-band CDMA200 1x performance. The SocketModem CDMA is based on industry-standard open interfaces and utilizes Multi-Tech’s universal socket design.
Chapter 1 – Product Description and Specifications Feature Details Integration Reduces Space, Power, and Cost. The SocketModem CDMA integrates the controller, RF transceiver, and antenna interface in one module. This integration requires low power and low real estate, and it provides an overall reduction in costs. Reduces Development Time.
Chapter 1 – Product Description and Specifications Technical Specifications The SocketModem CDMA meets the following specifications: Fax Compatibility Weight Dimensions Power Requirements Operating Environment Storage Temperature Certifications Cleaning CDMA Class 2.0 Group 3 Fax 1.2 oz (34 g) 3.1” w x 1.4” h x 0.5” d (8.0 cm x 3.5 cm x 1.
Chapter 2 – Mechanical Specifications Chapter 2 – Mechanical Specifications Physical Dimension SocketModem CDMA Mechanical Drawing Multi-Tech Systems, Inc.
Chapter 2 – Mechanical Specifications Pin Configurations The SocketModem CDMA uses a 13-pin interface. SocketModem Pins - Top View Pin Descriptions Pin # 24 26, 41, 63 33 34 35 36 37 38 39 40 61 Signal I/O Description Name Type -RESET I/O Reset. This signal is used to force a reset procedure by providing low level during at least 500µs. This signal is considered an emergency reset only. A reset procedure is already driven by an internal hardware during the power-up sequence.
Chapter 3 – Electrical Characteristics Chapter 3 – Electrical Characteristics Electrical characteristics for the 5V Serial SocketModem are presented in this chapter. I/O Electrical Characteristics 5 Vdc Characteristics (TA = -20° C to 55° C; VDD = 5 V ± 0.25 V) VDDMAX = 5.25 V Digital Inputs Input High Input Low –DTR (40), –TXD (35), –RTS (33), –RESET (24) Min 3.675 V Max 1.4 V Digital Outputs Output High Output Low Current –DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34) Min. 4 V Max 0.
Chapter 4 – SocketModem Interfaces Chapter 4 – SocketModem Interfaces This chapter describes the SocketModem interfaces. • Flashing LED Interface • RF Interface Flashing LED Interface The flashing LED signal is used to indicate the working mode of the SocketModem.
Chapter 5 – SocketModem Test Board Chapter 5 – SocketModem Test Board Serial Test/Demo Board Components Multi-Tech Systems, Inc.
Chapter 5 – SocketModem Test Board Serial Test/Demo Board Block Diagram Block Diagram for the SocketModem CDMA Multi-Tech Systems, Inc.
Chapter 6 – Application Considerations Chapter 6 – Application Considerations General Guidelines for the Use of the SocketModem Hardware and RF • Ground plane: Multi-Tech recommends having a common ground plane for analog, digital, and RF grounds. • ESD protection on serial link, … • Possible spurious emission radiated by the application to the RF receiver in the receiver band. The Antenna The antenna sub-system and integration in the application is a major issue.
Appendix A – Safety Appendix A – Safety Safety Precautions IMPORTANT! FOR THE EFFICIENT AND SAFE OPERATION OF YOUR CDMA INTEGRATED MODEM READ THIS INFORMATION BEFORE USE. RF Safety General Your SocketModem is based on the CDMA standard for cellular technology. Your modem is actually a low power radio transmitter and receiver. It sends out and receives radio frequency energy.
Appendix A – Safety General Safety Driving Check the laws and the regulations regarding the use of cellular devices in the area where you have to drive as you must comply with these laws and regulations. When using your modem while driving, please give full attention to driving. Pull off the road and park before making or answering a call if driving conditions so require. Electronic Devices Most electronic equipment, for example in hospitals and motor vehicles, is shielded from RF energy.
Appendix A – Safety General Safety Standards THIS WIRELESS SOCKETMODEM COMPLIES WITH ALL APPLICABLE RF SAFETY STANDARDS.
Appendix B – Sources for Peripheral Devices Appendix B – Sources for Peripheral Devices CDMA Antenna The integrated modem antenna connector is a MMCX connector. The MMCX connector incorporates a 'Snap On' latching action in order to make the connection easier with an excellent RF performance. An additional advantage is its small physical size, which is 50% of the standard MCX connector. This type of connector is suitable for the standard ranges of flexible and semi-rigid cables.
Appendix C – AT Commands Appendix C – AT Commands AT Commands for the CDMA wireless modem are published in a separate Reference Guide included on the product CD and the Multi-Tech Web site. Multi-Tech Systems, Inc.
Appendix D – Acronyms and Abbreviations Appendix D – Acronyms and Abbreviations ADC – Analog Digital Converter ASIC – Application Specific Integrated Circuit BCCH – Broadcast Control Channel CLK – Clock CTS – Clear To send dB – decibel DCD – Data Carrier Detect DCE – Data Circuit Terminating Equipment DSR – Data Set Ready DTE – Data Terminal Equipment DTR – Data Terminated Ready EFR – Enhanced Full Rate ECDMA – Extended CDMA EMC – Electromagnetic Conformity EN – Enable ETSI – European Telecommunications St
Appendix E – Warranty and Repairs Appendix E – Warranty and Repairs Multi-Tech Warranty Statement Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or workmanship for a period of two, five, or ten years (depending on model) from date of purchase, or if proof of purchase is not provided, two, five, or ten years (depending on model) from date of shipment.
Appendix E – Warranty and Repairs Repair Procedures for International Customers (Outside U.S.A. and Canada) Your original point of purchase Reseller may offer the quickest and most economical repair option for your Multi-Tech product. You may also contact any Multi-Tech sales office for information about the nearest distributor or other repair service for your Multi-Tech product. The Multi-Tech sales office directory is available at www.multitech.
Index Index ADC..................................................................19 aircraft and safety.............................................15 antenna ......................................................10, 13 antenna cable.............................................13, 17 antenna care and replacement ........................14 applications ........................................................4 ASIC .................................................................
