Huawei ME909s Series Hardware Manual
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Huawei ME909s Series Hardware Manual

Lte mini pcie module
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HUAWEI ME909s Series LTE Mini PCIe Module
Hardware Guide
Issue
02
Date
2016-09-07

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Summary of Contents for Huawei ME909s Series

  • Page 1 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Issue Date 2016-09-07...
  • Page 2 Thus, the descriptions herein may not exactly match the product or its accessories which you purchase. Huawei reserves the right to change or modify any information or specifications contained in this manual without prior notice and without any liability.
  • Page 3 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide About This Document About This Document Revision History Document Date Chapter Descriptions Version 2015-08-25 Creation 2016-09-07 Updated Table 2-1 Features Updated Circuit Block Diagram Updated Figure 3-11 Connections of the 3.7.2 USIM_DET pin 3.7.3...

  • Page 4: Table Of Contents

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Contents Contents 1 Introduction............................ 7 2 Overall Description ........................8 2.1 About This Chapter ........................... 8 2.2 Function Overview..........................8 2.3 Circuit Block Diagram ........................10 3 Description of the Application Interfaces ................12 3.1 About This Chapter .........................
  • Page 5 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Contents 4.3.2 Test Standards ........................34 4.4 Conducted Rx Sensitivity and Tx Power ..................34 4.4.1 Conducted Receive Sensitivity ....................34 4.4.2 Conducted Transmit Power ....................36 4.5 Antenna Design Requirements ...................... 37 4.5.1 Antenna Design Indicators.....................
  • Page 6 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Contents 8.8 WEEE Approval ..........................72 8.9 RoHS Approval ..........................72 8.10 Laws and Regulations Observance ..................... 73 8.11 Care and Maintenance ......................... 73 8.12 Emergency Call ..........................73 8.13 Regulatory Information ......................... 73 8.13.1 CE Approval (European Union) ...................

  • Page 7: Introduction

    Introduction This document describes the hardware application interfaces and air interfaces provided by HUAWEI ME909s Series (ME909s-821 and ME909s-120) LTE Mini PCIe Module (hereinafter referred to as the ME909s Mini PCIe module). This document helps hardware engineer to understand the interface specifications, electrical features and related product information of the ME909s Mini PCIe module.

  • Page 8: Overall Description

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Overall Description Overall Description 2.1 About This Chapter This chapter gives a general description of the ME909s Mini PCIe module and provides:  Function Overview  Circuit Block Diagram 2.2 Function Overview...
  • Page 9 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Overall Description Feature Description ME909s-120  FDD LTE: Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, all bands with diversity  WCDMA/HSDPA/HSUPA/HSPA+: Band 1, Band 2, Band 5, Band 8, all bands with diversity ...

  • Page 10: Circuit Block Diagram

    2.3 Circuit Block Diagram The module is developed based on Huawei's Balong Hi6921M platform. Figure 2-1 shows the circuit block diagram of the ME909s Mini PCIe Adapter.The major functional units of the Mini PCIe Adapter contain the following parts: ...
  • Page 11 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Overall Description Figure 2-1 Circuit block diagram of the ME909s Mini PCIe module Huawei Proprietary and Confidential Issue 02 (2016-09-07) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Description Of The Application Interfaces

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Description of the Application Interfaces 3.1 About This Chapter This chapter mainly describes the external application interfaces of the ME909s Mini PCIe module, including:  Mini PCIe Interface ...
  • Page 13 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Figure 3-1 shows the sequence of pins on the interface of the Mini PCIe Adapter. Figure 3-1 Sequence of Mini PCIe interface Bottom Table 3-1 shows the pin definitions of the Mini PCIe Interface.
  • Page 14 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Pin Name Mini PCI HUAWEI Min. Typ. Max. Description Parameter Comment Express Type Standard Description Description COEX2 UART_RTS UART request to 1.35 1.98 send 0.45 1.5 V...
  • Page 15 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Pin Name Mini PCI HUAWEI Min. Typ. Max. Description Parameter Comment Express Type Standard Description Description 0.2 x REFCLK+ Not connected UIM_RESE USIM_RES USIM card reset 0.7 x...
  • Page 16 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Pin Name Mini PCI HUAWEI Min. Typ. Max. Description Parameter Comment Express Type Standard Description Description Ground SMB_CLK Not connected PETn0 Not connected SMB_DATA Not connected...

  • Page 17: Power Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Pin Name Mini PCI HUAWEI Min. Typ. Max. Description Parameter Comment Express Type Standard Description Description 1.5 V Not connected –0.3 Reserved PCM_DIN PCM I/F data input 0.63...

  • Page 18: Power Supply Time Sequence

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces To minimize the RF radiation through the power lines, it is suggested to add ceramic capacitors of 10 pF and 100 nF in the power lines beside the Mini PCIe connector on the host side.

  • Page 19: Signal Control Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Parameter Remarks Time Unit Power off time >100 Power on time <10 The rising time of VCC_3V3 should be 100 µs at least. 3.4 Signal Control Interface 3.4.1 Overview...

  • Page 20: Wake# Signal

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Pin Name Description Parameter Min. Typ. Max. Comment Type LED_WWA Mode indicator current sink Drive strength: 10 mA 3.4.2 WAKE# Signal This signal is used for module to wake up the host. It is designed as an OC (Open Collector) gate, so it should be pulled up by the host and it is active-low.

  • Page 21: Resin_N Signal

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces The module cannot enter sleep mode when this pin is pulled up (1.8 V), and the module should be waked up when the pin is pulled up.

  • Page 22: Led_Wwan# Signal

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces  As the RESIN_N signal is relatively sensitive, it is recommended that you install a 10 nF to 0.1 µF capacitor near the RESIN_N pin of the interface for filtering. In...

  • Page 23: Uart Interface

    The voltage level of the LED_WWAN# pin is controlled by AT^LEDCTRL. Its states are as listed in Table 3-4 only when the indicator is turned on and runs Huawei's default blinking scheme. Figure 3-8 shows the recommended circuits of the LED_WWAN# pin. According to LED feature, you can adjust the LED brightness by adjusting the resistance of resistor R.

  • Page 24: Circuit Recommended For The Uart Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Table 3-5 UART interface signals Min. Typ. Max. Pin Description Description Parameter Type UART_CTS UART clear to send 1.17 1.98 –0.3 0.63 UART_RTS UART request to send 1.35...

  • Page 25: Usim Card Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces compatible with the USB 2.0 signal specifications. Figure 3-10 shows the circuit of the USB interface. Table 3-6 Definition of the USB interface Pin Name Pad Type...

  • Page 26: Usim_Det Pin

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Description Parameter Min.(V) Typ.(V) Max.(V) Comment Name Type USIM_ USIM card 0.7 x USIM_PWR clock USIM_P =1.8 V or 3.0 0.2 x USIM_P USIM_ USIM card 0.65 x...
  • Page 27 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Table 3-8 Function of the USIM_DET pin USIM_DET Function High level USIM card insertion. If the USIM card is present, USIM_DET should be High. Low level USIM card removal.

  • Page 28: Circuit Recommended For The Usim Card Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Figure 3-12 Logic of USIM_DET WWAN Module 1.8V USIM Connector Switch USIM installed= Not Connected USIM_DET Modem Processor USIM not installed= 3.7.3 Circuit Recommended for the USIM Card Interface As the Mini PCIe Adapter is not equipped with a USIM socket, you need to place a USIM socket on the user interface board.

  • Page 29: Audio Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces  It is recommended that you wrap the area adjacent to the USIM_CLK and USIM_DATA signal wires with ground. The Ground pin of the USIM socket and the Ground pin of the USIM card must be well connected to the power Ground pin supplying power to the PCIe Adapter.
  • Page 30 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces Figure 3-14 Circuit diagram of the interface of the PCM (ME909s Mini PCIe module is used as PCM master) Figure 3-15 Circuit diagram of the interface of the PCM (ME909s Mini PCIe module is used as PCM slave) ...

  • Page 31: Nc Pins

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Description of the Application Interfaces 3.9 NC Pins The ME909s Mini PCIe module has some NC pins. All of NC pins should not be connected. Please keep these pins open. Table 3-10 NC pins Pin No.

  • Page 32: Rf Specifications

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications RF Specifications 4.1 About This Chapter This chapter describes the RF specifications of the ME909s Mini PCIe module, including:  Operating Frequencies  Conducted RF Measurement  Conducted Rx Sensitivity and Tx Power ...
  • Page 33 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Operating Band LTE Band 39 1880 MHz–1920 MHz 1880 MHz–1920 MHz LTE Band 40 2300 MHz–2400 MHz 2300 MHz–2400 MHz LTE Band 41 2496 MHz–2690 MHz 2496 MHz–2690 MHz TD-SCDMA Band 34 2010 MHz–2025 MHz...

  • Page 34: Conducted Rf Measurement

    The instrument compensation needs to be set according to the actual cable conditions.  4.3.2 Test Standards Huawei modules meet 3GPP test standards. Each module passes strict tests at the factory and thus the quality of the modules is guaranteed. 4.4 Conducted Rx Sensitivity and Tx Power 4.4.1 Conducted Receive Sensitivity...
  • Page 35 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Typical Value Note Band (Unit: dBm) –101 LTE Band 3 FDD QPSK throughput > 95%, 10 MHz Bandwidth –102 LTE Band 8 FDD QPSK throughput > 95%, 10 MHz Bandwidth –101...

  • Page 36: Conducted Transmit Power

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Test Value Band Note (Unit: dBm) –102 Throughput ≥ 95%, 10 MHz Bandwidth LTE Band 8 –102.2 Throughput ≥ 95%, 10 MHz Bandwidth LTE Band 20  The test values are the average of some test samples.

  • Page 37: Antenna Design Requirements

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Table 4-6 ME909s-120 Mini PCIe module conducted Tx power Band Typical Value (Unit: dBm) Note (Unit: dB) GSM 850 GMSK (1Tx Slot) 32.5 ± 1.5 8PSK (1Tx Slot) ± 1.5...
  • Page 38 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications part of the antenna. The cable loss increases with the cable length and the frequency. It is recommended that the cable loss is as low as possible, for example, U.FL-LP-088 made by HRS.
  • Page 39 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Polarization The polarization of an antenna is the orientation of the electric field vector that rotates with time in the direction of maximum radiation. The linear polarization is recommended for the antenna of ME909s Mini PCIe module.

  • Page 40: Interference

    RF transmission cable into account when measuring any of the preceding antenna indicators.  Huawei cooperates with various famous antenna suppliers who are able to make suggestions on antenna design, for example, Amphenol, Skycross, etc. 4.5.2 Interference Besides the antenna performance, the interference on the user board also affects the radio performance (especially the TIS (Total Isotropic Sensitivity)) of the module.

  • Page 41: Suggestions About Lte And 2.4 Ghz Wi-Fi Co-Existence

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications Antenna Requirements 445 MHz in LTE Band 4 70 MHz in GSM 850; UMTS Band 5; LTE Band 5 190MHz in LTE Band 7 80 MHz in GSM 900; UMTS Band 8; LTE Band 8...

  • Page 42: Suggestions About The Interference

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide RF Specifications 2401MHz 2495MHz 2570MHz 2620MHz B40 TX/RX WIFI TX/RX B38 TX/RX 2500MHz B7 uplink B7 downlink 2400MHz 2300MHz B41 TX/RX 2496MHz 2690MHz The two systems interfere with each other because of nonl inear characteristic of LTE Band 38/40/41 and Wi-Fi transmitter.

  • Page 43: Electrical And Reliability Features

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Electrical and Reliability Features 5.1 About This Chapter This chapter describes the electrical and reliability features of the interfaces in the ME909s Mini PCIe module, including: ...

  • Page 44: Power Supply Features

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Table 5-2 Operating and storage temperatures for the ME909s Mini PCIe module Specification Min. Max. Unit –20 Normal working temperatures ° C –40 Extended temperatures ° C –40...

  • Page 45: Power Consumption

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Table 5-4 Requirements for input current of the ME909s Mini PCIe module Power Peak (GSM 1 slot) Normal (WCDMA) Normal (LTE 23 dbm) VCC_3V3 3000 mA 800 mA 800 mA 5.4.2 Power Consumption...
  • Page 46 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Bands Test Value (Unit: mA) Notes/Configuration Typical TD-SCDMA TD-SCDMA Module is powered up. bands DRX cycle=8 (2.56s) Module is registered on the network. USB is in active.
  • Page 47 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Bands Test Value (Unit: mA) Notes/Configuration Description Typical Idle LTE bands Module is powered up. DRX cycle=8 (2.56s) Module is registered on the network. USB is in active.
  • Page 48 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Band Test Value Units Power (Unit: dBm) 23.5 dBm Tx Power Band 9 0 dBm Tx Power (J1700) 10 dBm Tx Power 23.5 dBm Tx Power...
  • Page 49 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Band Test Value Units Power (Unit: dBm) Band 41 0 dBm Tx Power 10 dBm Tx Power 23 dBm Tx Power TD-SCDMA Band 34 0 dBm Tx Power...
  • Page 50 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Band Test Value Power (Unit: dBm) (Unit: mA) Band 2 0 dBm Tx Power (PCS 1900) 10 dBm Tx Power 23.5 dBm Tx Power Band 5...
  • Page 51 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Band Test Value Power (Unit: dBm) (Unit: mA) Band 8 0 dBm Tx Power 10 dBm Tx Power 23 dBm Tx Power Band 20 0 dBm Tx Power...
  • Page 52 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Test Value (Unit: mA) Configuration Typical EDGE 1800 1 Up/1 Down 2 Up/1 Down 4 Up/1 Down 1 Up/1 Down 2 Up/1 Down 4 Up/1 Down...
  • Page 53 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Description Test Value (Unit: mA) Configuration Typical GPRS 1900 1 Up/1 Down 2 Up/1 Down 4 Up/1 Down 1 Up/1 Down 2 Up/1 Down 4 Up/1 Down...

  • Page 54: Reliability Features

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features  All power consumption test configuration can be referenced by GSM Association Official Document TS.09: Battery Life Measurement and Current Consumption Technique. LTE test condition: 10/20 MHz bandwidth, QPSK (Quadrature Phase Shift Keying), 1 RB ...
  • Page 55 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Item Test Condition Standard Sample size Results Damp heat  High temperature: JESD22- 3 pcs/group Visual inspection: ok cycling 55º C A101-B Function test: ok  Low temperature: RF specification: ok 25º...
  • Page 56 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features Item Test Condition Standard Sample size Results Shock test  Half-sine wave shock JESD-B1 3 pcs/group Visual inspection: ok 04-C  Peak acceleration: 30 Function test: ok...

  • Page 57: Emc And Esd Features

    The following are the EMC design comments:  Attention should be paid to static control in the manufacture, assembly, packaging, handling, storage process to reduce electrostatic damage to HUAWEI module.  RSE (Radiated Spurious Emission) may exceed the limit defined by EN301489 if the antenna port is protected by TVS (Transient Voltage Suppressor), which is resolved by making some adjustment on RF match circuit.
  • Page 58 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Electrical and Reliability Features  Resistors in parallel and a 10 nF capacitor should be added on RESIN_N to avoid shaking, and the distance between the capacitor and the related pin should be less than 100 mil.
  • Page 59  Effective shielding measures must be taken on the ESD sensitive materials that are transported or stored outside the EPA. HUAWEI ME909s Mini PCIe module does not include any protection against overvoltage. Huawei Proprietary and Confidential Issue 02 (2016-09-07) Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Mechanical Specifications

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Mechanical Specifications 6.1 About This Chapter This chapter mainly describes mechanical specifications of ME909s Mini PCIe module, including:  Dimensions  Packaging  Specification Selection for Fasteners  Antenna Plug ...
  • Page 61 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Figure 6-1 Dimensions (Unit: mm) The Mini PCIe Adapter adopts a standard Mini PCI Express connector that has 52 pins and complies with the PCI Express Mini Card Electromechanical Specification Revision 2.0.

  • Page 62: Packaging

    Mechanical Specifications Figure 6-2 Dimensions of the Mini PCI Express connector (Unit: mm) 6.3 Packaging HUAWEI Mini PCIe module uses anti-vibration foam and ESD bag into cartons. Huawei Proprietary and Confidential Issue 02 (2016-09-07) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Figure 6-3 The packaging Huawei Proprietary and Confidential Issue 02 (2016-09-07) Copyright © Huawei Technologies Co., Ltd.

  • Page 64: Specification Selection For Fasteners

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications 6.4 Specification Selection for Fasteners 6.4.1 Installing the Mini PCIe Adapter on the Main Board To install the Mini PCIe Adapter on the main board, do the following: Step 1 Insert the Mini PCIe Adapter into the Mini PCI Express connector on the main board.

  • Page 65: Romoving The Mini Pcie Adapter From The Main Board

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Step 4 Insert the connector of the main antenna into the MAIN antenna interface (M) of the Mini PCIe Adapter according to the indication on the label of the Mini PCIe Adapter.

  • Page 66: Antenna Plug

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Step 3 Slide backwards the two clips to release the Mini PCIe Adapter from the slot. Then, lift up the Mini PCIe Adapter. 6.5 Antenna Plug Figure 6-4 Mating the plug Align the mating tool or the mating end of the tool over the plug end of the cable assembly.

  • Page 67: Thermal Design Guide

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications Place the plug cable assembly (held in the tool) over the corresponding receptacle. Assure that the plug and receptacle are aligned press-down perpendicular to the mounting surface until both connectors are fully mated.
  • Page 68 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications dimensions (W x D) of the thermal conductive material are 38 mm x 28 mm (1.50 in. x 1.10 in.), and its height depends on the height of the Mini PCIe connector you use and the method for installing the Mini PCIe.
  • Page 69 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Mechanical Specifications If you do not take the preceding heat dissipation measures, the overheat protection mechanism is triggered due to overheated Mini PCIe and the network connection is terminated when the Mini PCIe keeps working in enclosed space with a 70º...

  • Page 70: Certifications

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Certifications Certifications 7.1 About This Chapter This chapter gives a general description of certifications of ME909s Mini PCIe module. 7.2 Certifications Table 7-1 shows certifications the ME909s Mini PCIe module have been implemented. For more demands, please contact us for more details about this information.

  • Page 71: Safety Information

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Safety Information Safety Information Read the safety information carefully to ensure the correct and safe use of your wireless device. Applicable safety information must be observed. 8.1 Interference Power off your wireless device if using the device is prohibited. Do not use the wireless device when it causes danger or interference with electric devices.

  • Page 72: Traffic Security

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Safety Information  Area indicated with the "Power off bi-direction wireless equipment" sign  Area where you are generally suggested to stop the engine of a vehicle 8.4 Traffic Security ...

  • Page 73: Laws And Regulations Observance

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Safety Information 8.10 Laws and Regulations Observance Observe laws and regulations when using your wireless device. Respect the privacy and legal rights of the others. 8.11 Care and Maintenance It is normal that your wireless device gets hot when you use or charge it. Before you clean or maintain the wireless device, stop all applications and power off the wireless device.

  • Page 74: Appendix A Circuit Of Typical Interface

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Appendix A Circuit of Typical Interface Appendix A Circuit of Typical Interface VCC From Host Wake the host VCC _3 V3 W AK E# VCC_3 V3 Open drain,active low UART_CTS G ND 1...

  • Page 75: Appendix B Acronyms And Abbreviations

    HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Appendix B Acronyms and Abbreviations Appendix B Acronyms and Abbreviations Acronym or Abbreviation Expansion 3GPP Third Generation Partnership Project Auxiliary China Compulsory Certification European Conformity Coding Scheme Circuit Switched Data Direct Current...
  • Page 76 HUAWEI ME909s Series LTE Mini PCIe Module Hardware Guide Appendix B Acronyms and Abbreviations Acronym or Abbreviation Expansion Light-Emitting Diode Multi-chip Package Open collector Printed Circuit Board Radio Frequency Restriction of the Use of Certain Hazardous RoHS Substances Transient Voltage Suppressor...

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Me909s-821Me909s-120

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