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Huawei MG301 Hardware Manual

B2b module
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HUAWEI MG301 B2B Module
Hardware Guide
Issue
06
Date
2014-06-20

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Summary of Contents for Huawei MG301

  • Page 1 HUAWEI MG301 B2B Module Hardware Guide Issue Date 2014-06-20...
  • Page 2 Huawei T echnologies Co., Lt d r eserves t he r ight t o c hange or m odify any information or s pecifications contained in this manual without prior notice or obligation.

  • Page 3: Table Of Contents

    3.7 SIM Card Interface ........................25 3.7.1 Overview ..........................25 3.7.2 Circuit Recommended for the SIM Card Interface ..............26 3.8 Audio Interface ..........................27 4 Antenna Interface ........................29 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)
  • Page 4 6.4 MG323 Module Installation Description ..................48 6.5 Specification Selection for Fasteners ..................... 50 7 Appendix A Circuits of Typical Interfaces ................52 8 Appendix B Acronyms and Abbreviations ................53 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 5: Introduction

    1.1 Overview This document describes the hardware application interfaces and air interfaces that are provided when the Huawei MG301 B2B module (hereinafter referred to as the MG323 module) is used. The MG301 B2B module can pin to pin replace MG323 module This document helps you to understand the interface specifications, electrical features, and related product information of the MG301 B2B module.

  • Page 6: Overall Description

    HUAWEI MG301 B2B Module HardwareGuide Overall Description Overall Description 2.1 About This Chapter This chapter gives a general description of the MG301 B2B module and provides: Function Overview Application Block Diagram Circuit Block Diagram 2.2 Function Overview Table 2-1 Feature...
  • Page 7 GPRS Class 10 (maximum): 455 mA Protocols GSM/GPRS Phase2/2+ See the AT commands HUAWEI MG301 Series Wireless Module AT Command Interface Specification. Application UART1 (supporting 8-wire UART) and UART0 (2-wire UART) interface (50- One standard Subscriber Identity Module (SIM) card interface...

  • Page 8: Application Block Diagram

    Figure 2-1 shows the application block diagram of the MG301 B2B module. Figure 2-1 Application block diagram of the MG301 B2B module 2.4 Circuit Block Diagram The circuit block diagram and major functional units of the MG301 B2B module contain the following parts: Baseband controller ...
  • Page 9 Radio frequency (RF) transceiver  26 MHz clock  32 kHz clock  RF front-end modules  Receive filter  Figure 2-2 Circuit block diagram of the MG301 B2B module Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 10: Description Of The Application Interfaces

    Interface  3.2 B2B Connector Interface The MG301 B2B module uses a 50-pin B2B connector as its external interface. For details about the model and dimensions of the B2B connector, see “6.3 Dimensions of the B2B Connector”. Figure 3-1 shows the sequence and definitions of pins on the 50-pin B2B signal interface of the MG301 B2B module.
  • Page 11 EXTMIC_P Positive pole of the input of h eadset microphone Not connected, please keep this pin open EXTMIC_N Negative pole of the input of h eadset microphone Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)
  • Page 12 2.00 3.00 3.15 the RTC UART1_DSR DCE data set ready –0.40 2.80 3.20 Not connected, please keep this pin open UART1_RING DCE ring indicator –0.40 2.80 3.20 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 13: Power Interface

    3.3 Power Interface 3.3.1 Overview The power supply part of the B2B interface of the MG301 B2B module contains: VBAT interface for the power supply  VCOIN interface for the standby power supply of the real-time clock (RTC) ...

  • Page 14: Vbat Interface

    2.0 A due to the differences in actual network environments. In this case, the VBAT voltage greatly drops. Make sure that the voltage does not decrease below 3.3 V in any case. Otherwise, exceptions such as restart of the MG301 B2B module may occur.

  • Page 15: Vcoin Interface

    If the VBAT interface is ready for power supply, it on priority supplies the RTC with power. If the VBAT interface is not ready, the VCOIN interface provides standby power input for the RTC. In this case, the MG301 B2B module needs 5 µA to maintain the RTC function.

  • Page 16: Power-On Time Sequence

    RESET Pin for resetting the hardware 3.4.2 Power-On Time Sequence Make sure that the MG301 B2B module is powered on at the voltage and operating  temperature in the recommended range. Otherwise, the module may get damaged or work improperly.

  • Page 17: Power-Off Time Sequence

    HUAWEI MG30 B2B Module HardwareGuide Description of the Application Interfaces Fetch Ext Code in the figure is a file system in the MG301 B2B module.  Before powering on the MG301 B2B , make sure that TERM_ON is in High-Z condition.

  • Page 18: Input Signal Control Pins

    Pin for network status LED 3.5.2 Input Signal Control Pins The MG301 B2B module implements power-on and power-off and resets the hardware through the input signal control pins. The TERM_ON pin is used to implement power-on and power-off. If the TERM_ON pin is pulled down for 1 second to 2 seconds, the module is powered on;...

  • Page 19: Output Signal Control Pin

    2.2 kΩ 10 nF 3.5.3 Output Signal Control Pin The MG301 B2B module provides a network status LED pin LED_STATUS. The pulse signal output through this pin controls the status LED on the user interface board to display the network status.

  • Page 20: Uart Interface

    Figure 3-7 Driving circuit 3.6 UART Interface 3.6.1 Overview The MG301 B2B module provides the UART1 (8-wire UART) interface for one asynchronous communication channel. As the UART1 interface supports signal control through standard modem handshake, AT commands are entered and serial communication is performed through the UART1 interface.

  • Page 21: Circuit Recommended For The Uart Interface

    3.6.2 Circuit Recommended for the UART Interface Figure 3-8 shows the connection of the UART1 interface in the MG301 B2B module (DCE) with the host (DTE). Figure 3-8 Connection of the UART1 interface in the MG301 B2B module (DCE) with the...

  • Page 22: Sim Card Interface

    Figure 3-9 The signal through the RING after the MG301 B2B receives an SM When an MG301 B2B Module receives a voice call, a periodical low level signal for 1s and a high level signal for 4s are output by RING, as shown in Figure 3-10 .

  • Page 23: Circuit Recommended For The Sim Card Interface

    3.7.2 Circuit Recommended for the SIM Card Interface As the MG301 B2B module is not equipped with a SIM card socket, you need to place a SIM card socket on the user interface board. The SIM card signals are transmitted outwards through the 50-pin B2B connector interface.

  • Page 24: Audio Interface

    Ground pin that supplies power to the MG301 B2B module. 3.8 Audio Interface The MG301 B2B module provides two types of audio interfaces: one is for handsets, the other is for headsets. The audio interfaces of the MG301 B2B module support input from handset microphones and headset microphones, and provide output that supports 32 Ω...

  • Page 25: Usb Interface

    It is recommended that ESD components be added to the external circuit of the audio interface to protect the module. 3.9 USB Interface The MG301 B2B module support USB2.0 interface,reserved for debug. suggest to lift 2 test point. The USB interface on MG301 LCC module pin48, pin49. Pin No.

  • Page 26: Antenna Interface

    An RF connector or an antenna pad can be used as the connection method of an antenna interface. When the MG301 B2B module works properly, only one of the preceding connection methods is used. In addition, the antenna interface must be used with coaxial cables with 50 Ω...

  • Page 27: Coaxial Cable And Rf Connector

    HUAWEI MG301 B2B Module HardwareGuide Antenna Interface The properties of major materials of the MG301 B2B module are as follows: PCB: FR4  Antenna pad: cheminal nickel-gold pad  4.3 Coaxial Cable and RF Connector The U.FL-R-SMT-1(80) RF connector manufactured by Hirose is used as the antenna interface in the MG301 B2B module.
  • Page 28 RF connector. Figure 4-3 shows the connection between the RF connector and the U.FL-LP-040 cable. Figure 4-3 Connection between the RF connector and the U.FL-LP-040 cable Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 29: Esd Protection For The Antenna Interface

    TVS diode is lower than 1 pF. 4.5 RF Specifications of the Antenna Interface Table 4-2 lists the RF specifications of the antenna interface in the MG301 B2B module. Table 4-2 RF specifications of the antenna interface in the MG301 B2B module...
  • Page 30 Time slots of each TDMA frame Frame duration 4.615 Time slot duration µs Modulation scheme Gaussian minimum shift keying (GMSK) Receiver sensitivity GSM-850 –108.5 EGSM-900 –108.5 GSM-1800 –108 GSM-1900 –108 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 31: Specifications Of The Antenna Interface

    Voltage standing < 3:1 wave ratio (VSWR) Maximum gain > 2.5 dBi Antenna efficiency > 40% @824 MHz–960 MHz; 50% @1710 MHz–1990 MHz Polarization Linear polarization Pattern Omnidirectional Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 32: Electrical And Reliability Features

    ESD Features  5.2 Extreme Working Conditions Table 5-1 lists the extreme working conditions for the MG301 B2B module. Using the MG301 B2B module beyond these conditions may result in permanent damage to the module. Table 5-1 Extreme working conditions for the MG301 B2B module...

  • Page 33: Operating And Storage Temperatures And Humidity

    Table 3-1 . 5.3 Operating and Storage Temperatures and Humidity Table 5-2 lists the operating and storage temperatures and humidity for the MG301 B2B module. Table 5-2 Operating and storage temperatures and humidity for the MG301 B2B module...
  • Page 34 VBAT VBAT VBAT Table 5-4 lists electrical features (typical values) measured when no external device is connected to the MG301 B2B module through the 50-pin B2B interface. Table 5-4 Electrical features of application interfaces Function Signal Name I/O Waveform and...
  • Page 35 VIO interface. =10.00 mA omax If the MG301 module is in Sleep mode, the VIO pin is in the enabled low consumption state (< 500 uA). If the MG301 B2B module is in Power Down mode, the VIO pin is in the disabled state.
  • Page 36 Negative end of differential headset MIC input interface through channel 2 Positive end of differential headset MIC input EXTMIC_P through channel 2 INTMIC_P Positive end of differential handset MIC input through channel 1 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 37: Power Supply Features

    AI indicates pins for analog signal input; AO indicates pins for analog signal output. 5.5 Power Supply Features 5.5.1 Input Power Supply Table 5-5 lists the requirements for input power of the MG301 B2B module. Table 5-5 Requirements for input power of the MG301 B2B module Parameter...
  • Page 38 In idle mode, the module is registered to the network; no voice or data service is ongoing  and the serial port can be used. Table 5-7 Working current of the MG301 B2B module (for GPRS mode) Band Typical Unit...

  • Page 39: Reliability Features

    The typical values are the average of some test samples. 5.6 Reliability Features Table 5-8 lists the test conditions and results of the mechanical reliability of the MG301 B2B module. Table 5-8 Test conditions and results of the mechanical reliability of the MG301 B2B module Item Test Condition Standard Low-temperature Temperature: –40ºC±2ºC...
  • Page 40 Clash test Half-sine wave IEC60068 Peak acceleration: 180 m/s Pulse duration: 6 ms Repetition time: 6 directions. 1000 times for each direction. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 41: Esd Features

    5.7 ESD Features Pay great attention to ESD protection when using the MG301 B2B module. To ensure that the working reference GND is connected to the MG301 B2B module and user interface board properly, you are recommended not to spray a coated insulation on the...

  • Page 42: Mechanical Specifications

    HUAWEI MG301 B2B Module HardwareGuide Mechanical Specifications Mechanical Specifications 6.1 Overview This chapter describes the dimensions of the MG301 B2B module, including: Dimensions  Dimensions of the B2B Connector  MG301 B2B Module Installation Description  Specification Selection for Fasteners ...

  • Page 43: Dimensions Of The B2B Connector

    Figure 6-1 Dimensions of the MG301 B2B module (unit: mm) 6.3 Dimensions of the B2B Connector The MG301 B2B module uses the 50-pin B2B connector whose model is DF12C(3.0)- 50DS-0.5V(81) and whose pin spacing is 0.5 mm to work with the connector DF12E (3.0)-50DP-0.5V (81) of the DF12 series (both connectors are manufactured by...
  • Page 44 HUAWEI MG301 B2B Module HardwareGuide Mechanical Specifications Figure 6-3 DF12E (manufactured by Hirose) recommended to be used with the MG301 B2B module on the user interface board Table 6-1 Ordered connector model and DF12 product series working with the MG301 B2B...

  • Page 45: Mg323 Module Installation Description

    You can insert machine screws through the structure fixing holes and metal fasteners and fasten with nuts to firmly connect the MG301 B2B module to the user interface board [1]. The metal fastener is placed between the MG301 B2B module and user interface Huawei Proprietary and Confidential Copyright ©...
  • Page 46 Figure 6-6 shows the MG301 B2B module installation. Figure 6-6 MG301 B2B module installation [1]: Pay great attention to ESD protection when using the MG301 B2B module. To ensure that the working reference GND is connected to the MG301 B2B module and user interface board properly,...

  • Page 47: Specification Selection For Fasteners

    Mechanical Specifications 6.5 Specification Selection for Fasteners To ensure that the MG301 B2B module is firmly fixed on the interface board when using the MG301 B2B module, you are recommended to you use the M1.6 or M1.8 machine screw. You can also customize the screws. The fastener components in the following figures are recommended.
  • Page 48 HUAWEI MG301 B2B Module Hardware Guide Mechanical Specifications Figure 6-8 Nut dimensions Figure 6-9 Metal fastener dimensions Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 49: Appendix A Circuits Of Typical Interfaces

    HUAWEI MG301 B2B Module Hardware Guide Appendix A Circuits of Typical Interfaces Appendix A Circuits of Typical Interfaces Figure 7-1 Circuits of typical interfaces in the MG301 B2B module Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

  • Page 50: Appendix B Acronyms And Abbreviations

    HUAWEI MG301 B2B Module HardwareGuide Appendix B Acronyms and Abbreviations Appendix B Acronyms and Abbreviations Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13) Acronym or Abbreviation Expansion Board-to-Board European Conformity Coding Scheme Circuit Switched Data...
  • Page 51 Restriction of the Use of Certain Hazardous Substances Real-time Clock Subscriber Identity Module Transistor-transistor Logic Transient Voltage Suppressor UART Universal Asynchronous Receiver-transmitter VSWR Voltage Standing Wave Ratio Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd Issue 06 (2013-06-13)

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