Multitech MMCModem MTMMC-G-F4 Developer's Manual

Gprs embedded wireless modem
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MTMMC-G-F4
Developer's Guide

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Summary of Contents for Multitech MMCModem MTMMC-G-F4

  • Page 1 ™ MMCModem GPRS Embedded Wireless Modem MTMMC-G-F4 Developer's Guide...
  • Page 2 TXD, DTR, RTS input signals being the only 5V tolerant signals. Warranty For warranty information, see the Multi-Tech Web site at http://www.multitech.com/COMPANY/Policies/warranty/ Trademarks MMCModem is a trademark of Multi-Tech Systems, Inc. The Multi-Tech logo is a registered trademark of Multi-Tech Systems, Inc.
  • Page 3: Table Of Contents

    Table of Contents Table of Contents Chapter 1 – Product Description and Specifications ................5 Introduction ............................5 AT Command Information ........................5 Product Ordering Information ......................5 Safety Notices and Warnings ......................6 Wireless Safety ..........................6 Safety Standards ..........................6 Instructions to OEMs ........................
  • Page 4 Table of Contents Minimum Hardware Interface Required To Get Started ..............33 Terminal Emulator Setup ....................... 33 Appendix A – Peripheral Devices ......................34 Antenna System ..........................34 SIM Card Holder ..........................35 Where to Find SMD Connectors ......................36 Appendix B –...
  • Page 5: Chapter 1 - Product Description And Specifications

    Chapter 1 – Product Description and Specifications Chapter 1 – Product Description and Specifications Introduction The Multi-Tech MMCModem™ GPRS wireless modem offers standards-based quad-band GPRS Class 10 performance. Packaged in a compact, rugged industrial chassis, this quick-to-market communications device allows developers to add wireless communication to products with a minimum of development time and expense.
  • Page 6: Safety Notices And Warnings

    Chapter 1 – Product Description and Specifications Safety Notices and Warnings Note to OEMs: The following safety statements may be used in the documentation of your final product applications. Wireless Safety General Safety The MMCModem is designed for and intended to be used in fixed locations and mobile applications.
  • Page 7: Instructions To Oems

    Chapter 1 – Product Description and Specifications Instructions to OEMs The Multi-Tech product manual includes specific warnings and cautions in order to ensure that OEMs are aware of their responsibilities, with regards to RF exposure compliance, for products into which the modem is integrated.
  • Page 8: Specifications

    Chapter 1 – Product Description and Specifications Specifications The MTMMC-G-F4 meets the following specifications: Category Description GPRS Class 10 Standards Bandwidth Quad-band 850/900/1800/1900 MHz Serial/Data Speed Serial interface supports DTE speeds to 115.2K Packet data up to 85.6K bps Coding Schemes: CS1 to CS4 Circuit-switched data up to 14.4K bps transparent and non-transparent Baud rate from 300 to 115,200 bits/s Data Format...
  • Page 9 Chapter 1 – Product Description and Specifications Category Description Features Embedded TCP/IP stack Short Message Services (SMS) Features: Text and PDU, Point-to-Point MT & MO, SMS Cell broadcast AT command compatible Remote control by AT Commands. Advanced Management Features: Phonebook management, Fixed dialing number, Real time clock, Alarm management Board-to-board or board-to-cable mounting SIM Toolkit Class 2...
  • Page 10: Chapter 2 - Mechanical Drawing

    Chapter 2 – Mechanical Drawing Chapter 2 – Mechanical Drawing The MMCModem GPRS is encased as shown in the figure below. It includes an RF modem, a 50-pin connector, a SIM holder, and an RF connector. MMCModem GPRS Mechanical Dimensions Multi-Tech Systems, Inc.
  • Page 11: Chapter 3 - Electrical Characteristics

    Chapter 3 – Electrical Characteristics Chapter 3 – Electrical Characteristics Introduction This chapter describes the electrical characteristics of the various interfaces of the MMCModem. • Electrical interfaces on the 50-pin general purpose connector (power and data/signaling) Power Supply Pin and Power Supply Consumption Serial Link ON/OFF Interface and Power Off Procedure Boot...
  • Page 12: 50-Pin Connector Interface

    Chapter 3 – Electrical Characteristics 50-Pin Connector Interface Pin Numbering – Top View Pin Numbering – Bottom View Multi-Tech Systems, Inc. MMCModem GPRS Developer’s Guide (S000445D)
  • Page 13 Chapter 3 – Electrical Characteristics 50-Pin Connector Description Pin # Name IN/OUT I/O Type Description Comment GROUND High current GROUND High current Supply High current Supply High current CT109/DCD CMOS/2X Data Carrier Detect GROUND High current GPI04 CMOS/2X General Purpose I/O SPK2N Analog Speaker 2 negative output...
  • Page 14 Chapter 3 – Electrical Characteristics 50-Pin Operating Conditions Parameter I/O Type Condition CMOS -0.5V 0.8V input low CMOS 2.1V 3.0V input high Serial Inputs 2.1V 5.0V 0.2V = -1mA output low 0.2V = -2mA 0.2V = -3mA 2.6V = 1mA output high 2.6V = 2mA...
  • Page 15: Power Supply Pins Electrical Interface

    Chapter 3 – Electrical Characteristics Power Supply Pins Electrical Interface The main power supply is provided through a double connection. These connections are respectively pins 3 and 4 for the +5V and the pins 1 and 2 for the ground (GND). The pins 6, 21, and 24 are also ground connection in order to produce a proper ground plane.
  • Page 16: Serial Link Electrical Interface

    Chapter 3 – Electrical Characteristics Serial Link Electrical Interface A serial link interface is available complying with V24 protocol signaling but not with V28 (electrical interface) due to a 2.8 Volts interface. TX, RTS and DTR can be either 5V or 3V. Data signals are Hi = Mark.
  • Page 17: On / ~Off Electrical Interface

    Chapter 3 – Electrical Characteristics ON / ~OFF Electrical Interface This input is used to switch the MMCModem ON or OFF. A high level signal has to be provided on the ON/~OFF pin to switch on the modem. The level of the voltage of this signal has to be maintained to VCC during a minimum time of 1 second.
  • Page 18: Boot Electrical Interface

    Chapter 3 – Electrical Characteristics BOOT Electrical Interface This input is used to switch the MMCModem into download mode (backup procedure). The internal boot procedure is started when this pin is low during the power ON of the modem. In normal mode, this pin has to be left open. If used, this input has to be driven by an open collector or an open drain.
  • Page 19: Reset Signal (~Rst) Electrical Interface

    Chapter 3 – Electrical Characteristics Reset Signal (~RST) Electrical Interface This signal is used to force a reset of the MMCModem. It has to be used by providing low level during approximately 2ms. This signal has to be considered as an emergency reset only.
  • Page 20: Flashing Led Electrical Interface

    Chapter 3 – Electrical Characteristics Flashing LED Electrical Interface The flashing LED signal is used to indicate the working mode of the MMCModem. Flashing LED Pin Description Signal Pin # I/O Type* Description Flashing LED CMOS/2X Working mode indication LED * See “Operating Conditions”...
  • Page 21: Audio Electrical Interface

    Chapter 3 – Electrical Characteristics Audio Electrical Interface Two different microphone inputs and two different speaker outputs are supported. The connection can be either differential or single-ended but using a differential connection in order to reject common mode noise and TDMA noise is recommended. Microphone Inputs for MIC2 The MIC2 inputs are differential ones.
  • Page 22 Chapter 3 – Electrical Characteristics Microphone Inputs for MIC1 The MIC1 inputs are differential and do not include internal bias. To use these inputs with an electret microphone, bias has to be generated outside the MMCModem according to the characteristic of this electret microphone. These inputs are the standard ones used for an external headset or a hands-free kit.
  • Page 23 Chapter 3 – Electrical Characteristics Speaker Outputs for SPK2 Speaker outputs SPK2 are push-pull amplifiers and can be loaded down to 50 Ohms and up to 1nF. These outputs are differential and the output power can be adjusted by step of 2dB. The output can be directly connected to a speaker.
  • Page 24 Chapter 3 – Electrical Characteristics Speaker Outputs for SPK1 Speaker outputs SPK1 are push-pull amplifiers and can be loaded down to 50 Ohms and up to 1nF. These outputs are differential and the output power can be adjusted by step of 2dB. The output can be directly connected to a speaker.
  • Page 25: Sim Electrical Interface

    Chapter 3 – Electrical Characteristics SIM Electrical Interface The external SIM interface is available through the 50-pin connector in order to use a stand- alone SIM cardholder. SIM line must not exceed 15 cm. Five signals are available: • SIMVCC: SIM power supply. •...
  • Page 26 Chapter 3 – Electrical Characteristics SIM Socket Pin Description Signal Pin # Description SIMVCC SIMRST SIMCLK R10 to Ground Ground not connected SIMDATA SIMPRES1 SIMVCC SIMRST SIMCLK SIMDATA SIMPRES1 8 SIM Socket Drawing Multi-Tech Systems, Inc. MMCModem GPRS Developer’s Guide (S000445D)
  • Page 27: Spi Bus Electrical Interface

    Chapter 3 – Electrical Characteristics SPI Bus Electrical Interface The SPI bus includes a CLK signal, an I/O signal and an EN signal complying with SPI bus standard. The maximum speed transfer is 3.25Mb/s. SPI Bus Pin Description Signal Pin # I/O Type* Description SPI_CLK...
  • Page 28: Chapter 4 - Non-Electrical Interfaces

    Chapter 4 – Non-Electrical Interfaces Chapter 4 – Non-Electrical Interfaces This chapter describes the non-electrical interfaces. • Flashing LED non-electrical interface • SIM non-electrical interface • RF non-electrical interface • DTE/DCE Rates non-electrical interface Flashing LED The flashing LED signal is used to indicate the working mode of the MMCModem. LEDs and the MMCModem Status LED Indication MMCModem Status...
  • Page 29: Rf Interface

    Chapter 4 – Non-Electrical Interfaces RF Interface The impedance is 50 Ohms nominal. RF Connector The RF connector is MMCX standard type. An antenna can be directly connected through the mating connector or using a small adapter. RF Performances RF performance is compliant with the ETSI recommendation ETSI TS 151 010-1. Receiver Parameters: •...
  • Page 30: Chapter 5 - Test Board

    Chapter 5 – Test Board Chapter 5 – Test Board Serial Test/Demo Board Components Serial Test/Demo Board Components Multi-Tech Systems, Inc. MMCModem GPRS Developer’s Guide (S000445D)
  • Page 31: Serial Test/Demo Board Block Diagram

    Chapter 5 – Test Board Serial Test/Demo Board Block Diagram Block Diagram for the MMCModem GPRS Developer Board Multi-Tech Systems, Inc. MMCModem GPRS Developer’s Guide (S000445D)
  • Page 32: Chapter 6 - Application Considerations

    Chapter 6 – Application Considerations Chapter 6 – Application Considerations Hardware and RF • Ground plane: Multi-Tech recommends having a common ground plane for analog, digital and RF grounds. • Length of the SIM interface lines (15 cm maximum) • Bias of the microphone inputs must be properly adjusted when using audio connectors (mic + speaker) 1.
  • Page 33: Getting Started & Terminal Emulator Setup

    Chapter 6 – Application Considerations Getting Started & Terminal Emulator Setup Minimum Hardware Interface Required To Get Started At a minimum, it is necessary to connect the following signals to properly operate the MMCModem: Minimum Signals to Operate the MMCModem Pin # Name Description...
  • Page 34: Appendix A - Peripheral Devices

    Appendix A – Peripheral Devices Appendix A – Peripheral Devices Antenna System The antenna system for use with Multi-Tech MMCModem includes a coax cable to interface between UFL or MMCX connection on the modem and the antenna. RF Specifications GSM RF Specifications GSM 850 EGSM 900 GSM 1800...
  • Page 35: Sim Card Holder

    Appendix A – Peripheral Devices Connector An antenna with an SMA connector may be directly connected to an MMCModem through a mating MMCX to SMA adapter. MMCX / SMA Connector Available from Amphenol Amphenol http://www.amphenol.com/ Order No: 908-31100 MMCX Plug The MMCModem requires an MMCX plug to connect to an antenna.
  • Page 36: Where To Find Smd Connectors

    Appendix A – Peripheral Devices Where to Find SMD Connectors The ModemModule matting interface connector is made by SAMTEC France (http://www.samtec.com/). Many SAMTEC products are available via SAMTEC dealers throughout the world. High and Low Profile Connectors SAMTEC Reference Number for SAMTEC Reference Number for High-Profile Connector: Low-Profile Connector:...
  • Page 37: Appendix B - Compliance Statements

    Appendix B – Compliance Statements Appendix B – Compliance Statements Waste Electrical and Electronic Equipment Statement Note to OEMs: The statement is included for your information and may be used in the documentation of your final product applications. WEEE Directive The WEEE directive places an obligation on EU-based manufacturers, distributors, retailers, and importers to take-back electronics products at the end of their useful life.
  • Page 38: Restriction Of The Use Of Hazardous Substances (Rohs)

    Appendix B – Compliance Statements Restriction of the Use of Hazardous Substances (RoHS) Multi-Tech Systems, Inc. Certificate of Compliance 2002/95/EC Multi-Tech Systems Inc. confirms that MTxxxxSMI, MTSMC-G-F4, MTxxxxSEM, MTIFM, and MTxxxSWM now comply with the chemical concentration limitations set forth in the directive 2002/95/EC of the European Parliament (Restriction Of the use of certain Hazardous Substances in electrical and electronic equipment - RoHS) These Multi-Tech Systems, Inc.
  • Page 39: Information On Hs/Ts Substances According To Chinese Standards

    Appendix B – Compliance Statements Information on HS/TS Substances According to Chinese Standards In accordance with China’s Administrative Measures on the Control of Pollution Caused by Electronic Information Products (EIP) # 39, also known as China RoHS, the following information is provided regarding the names and concentration levels of Toxic Substances (TS) or Hazardous Substances (HS) which may be contained in Multi-Tech Systems Inc.
  • Page 40: Information On Hs/Ts Substances According To Chinese Standards (In Chinese)

    Appendix B – Compliance Statements Information on HS/TS Substances According to Chinese Standards (in Chinese) 依照中国标准的有毒有害物质信息 根据中华人民共和国信息产业部 (MII) 制定的电子信息产品 (EIP) 标准-中华人民共和国《电子信息产品污染控制管理办法》(第 39 号),也称作中国 RoHS,下表列出了 Multi-Tech Systems, Inc. 产品中可能含有的有毒物质 (TS) 或有害物质 (HS) 的名称及含量水平方面的信息。 有害/有毒物质/元素 成分名称 铅 汞 镉 六价铬 多溴联苯 多溴二苯醚 (PB) (Hg) (CD)
  • Page 41: Index

    Index Index 50-Pin Connector ..........12, 13 keypad Electrical Interface ........27 50-Pin Operating Conditions ........14 LED Electrical Interface ..........20 Advanced Management Features ......9 LED non-electrical interface ........28 Advice of Charge ............8 Analog to Digital Converter Electrical Interface ..20 Antenna system ............

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