Quectel M12 Manuals

Manuals and User Guides for Quectel M12. We have 1 Quectel M12 manual available for free PDF download: Hardware Design

Quectel M12 Hardware Design

Quectel M12 Hardware Design (76 pages)

Cellular Engine

Brand: Quectel | Category: Control Unit | Size: 2.91 MB

Table of Contents

Table of Contents
3
Revision History

8
1 Introduction

9
- Related Documents
  9
- Terms and Abbreviations
  10
- Safety Cautions
  12
2 Product Concept

14
- Key Features
  14
- Functional Diagram
  16
- Evaluation Board
  17
3 Application Interface

18
- Pins of Module
  18
  - Pin Assignment
    18
  - Pin Description
    19
- Operating Modes
  24
- Power Supply
  26
- Power up and Power down Scenarios
  28
  - Power on Module Using PWRKEY Pin
    28
  - Power down
    30
  - Restart Module Using PWRKEY Pin
    33
- Power Saving
  34
- C3.6. Summary of State Transitions
  36
- RTC Backup
  36
- Serial Interfaces
  38
  - UART Port
    39
  - Debug Port
    42
  - UART3 Port
    43
  - UART Application
    44
- Audio Interfaces
  46
- SIM Card Interface
  51
  - SIM Card Application
    51
  - SIM Card Holder
    53
- Adc
  55
- Behaviors of the RI
  56
- Network Status Indication
  58
- Operating Status Indication
  59
- General Purpose Input & Output (GPIO)
  59
- SD Card Interface
  60
4 Antenna Interface

62
- Antenna Installation
  62
- RF Output Power
  63
- RF Receiving Sensitivity
  63
- Operating Frequencies
  63
- Recommendation of RF Pad Welding
  63
5 Electrical, Reliability and Radio Characteristics

65
- Absolute Maximum Ratings
  65
- Operating Temperature
  65
- Power Supply Ratings
  66
- Current Consumption
  67
- Electro-Static Discharge
  68
6 Mechanical Dimensions

69
Appendix A: GPRS Coding Schemes

74
Appendix B: GPRS Multi-Slot Classes

75

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