Table Of Contents - Fibocom L-831-EA User Manual

Table of Contents

IMPORTANT NOTE:................................................................................................................................................... 4

1 Preface..................................................................................................................................................................... 10

1.1 Outline...........................................................................................................................................................10

1.2 Standards..................................................................................................................................................... 10

2 Introduction.............................................................................................................................................................. 12

2.1 Description................................................................................................................................................... 12

2.2 Specifications...............................................................................................................................................12

2.3 Appearance..................................................................................................................................................15

3 Mechanical...............................................................................................................................................................16

3.1 Dimension.....................................................................................................................................................16

3.2 Application Interface Description..............................................................................................................17

3.3 M.2 Connector............................................................................................................................................. 18

4 Hardware Overview................................................................................................................................................19

4.1 Pins Definition..............................................................................................................................................19

4.1.1 Pins Number.....................................................................................................................................19

4.1.2 Pins Description............................................................................................................................... 20

5 Hardware Interface.................................................................................................................................................24

5.1 Power Interface........................................................................................................................................... 24

5.1.1 Power Supply................................................................................................................................... 24

5.1.2 VSD2_1V8........................................................................................................................................ 24

5.2 Power on/off and Reset Signal................................................................................................................. 25

5.2.1 Power on/off Signal......................................................................................................................... 25

5.2.1.1 Power on................................................................................................................................25

5.2.1.2 Power off................................................................................................................................25

5.2.1.3 Recommended Circuit Design of Power on/off signals................................................. 26

5.2.2 RESET Signal.................................................................................................................................. 27

5.3 Index Signal................................................................................................................................................. 28

5.3.1 Index Signal Pins............................................................................................................................. 28

5.4 USB Interface...............................................................................................................................................28

5.4.1 Definition of USB Interface.............................................................................................................28

5.4.2 Application for USB Interface........................................................................................................ 29

5.5 USIM Interface.............................................................................................................................................29

L831-EA Module Hardware User Manual

Contents

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