HUAWEI MG301 B2B Module
HardwareGuide
Contents
Huawei Proprietary and Confidential Copyright ©
Huawei Technologies Co., Ltd
Issue 06 (2013-06-13)
6
Contents
1
Introduction .................................................................................................................................... 8
1.1 Overview ...........................................................................................................................................8
2
Overall Description ...................................................................................................................... 9
2.1 About This Chapter ........................................................................................................................... 9
2.2 Function Overview............................................................................................................................ 9
2.3 Application Block Diagram .............................................................................................................. 11
2.4 Circuit Block Diagram ..................................................................................................................... 11
3
Description of the Application Interfaces ............................................................................. 13
3.1 About This Chapter ........................................................................................................................ 13
3.2 B2B Connector Interface ............................................................................................................... 13
3.3 Power Interface ............................................................................................................................. 16
3.3.1 Overview ............................................................................................................................... 16
3.3.2 VBAT Interface ...................................................................................................................... 17
3.3.3 VCOIN Interface ................................................................................................................... 18
3.3.4 VIO Interface ......................................................................................................................... 18
3.4 Power-On and Power-Off Time Sequence .................................................................................... 18
3.4.1 Overview ............................................................................................................................... 18
3.4.2 Power-On Time Sequence .................................................................................................... 19
3.4.3 Power-Off Time Sequence .................................................................................................... 20
3.4.4 RESET .................................................................................................................................. 20
3.5 Signal Control Interface ................................................................................................................. 20
3.5.1 Overview ............................................................................................................................... 20
3.5.2 Input Signal Control Pins ...................................................................................................... 21
3.5.3 Output Signal Control Pin ..................................................................................................... 22
3.6 UART Interface .............................................................................................................................. 23
3.6.1 Overview ............................................................................................................................... 23
3.6.2 Circuit Recommended for the UART Interface ..................................................................... 24
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
