Fibocom L831-EAU-01 - Table of Contents

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L831-EAU-01 Hardware User Manual Page
4
of
39
Contents
1 Foreword
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6
1.1 Introduction........................................................................................................................................... 6
1.2 Reference Standard
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6
1.3 Related Documents
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6
2 Overview...........................................................................................................................................7
2.1 Introduction
...........................................................................................................................................
7
2.2 Specification
..........................................................................................................................................
7
2.3 Application Framework........................................................................................................................8
2.4 Hardware Framework
..........................................................................................................................
9
3 Application Interface
.....................................................................................................................
9
3.1 M.2 Interface.........................................................................................................................................9
3.1.1 Pin Distribution................................................................................................................................. 10
3.1.2 Pin Definition.....................................................................................................................................11
3.2 Power Supply..................................................................................................................................... 15
3.2.1 Power Supply................................................................................................................................... 15
3.2.2 Logic level......................................................................................................................................... 16
3.2.3 Power Consumption........................................................................................................................17
3.3 Control Signal
.....................................................................................................................................
17
3.3.1 Module Start-Up...............................................................................................................................18
3.3.1.1 Start-up Circuit
................................................................................................................................................
18
3.3.1.2 Start-up Timing Sequence............................................................................................................................19
3.3.2 Module Shutdown............................................................................................................................19
3.3.2.1 Software Shutdown
........................................................................................................................................
20
3.3.2.2 Hardware Shutdown...................................................................................................................................... 20
3.3.3 Host Reboot......................................................................................................................................21
3.3.4 Module Reset................................................................................................................................... 22
3.4 USB Interface
.....................................................................................................................................
23
3.4.1 USB Interface Definition................................................................................................................. 23
3.4.2 USB2.0 Interface Application.........................................................................................................24
3.5 USIM Interface
...................................................................................................................................
24
3.5.1 USIM Pins......................................................................................................................................... 24
3.5.2 USIM Interface Circuit.....................................................................................................................25
3.5.2.1 N.C. SIM Card Slot........................................................................................................................................ 25