Huawei MU609 - Default Chapter; Table of Contents

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HUAWEI MU609 HSPA LGA Module

Application Guide

Contents

Issue 02 (2013-09-18)

Huawei Proprietary and Confidential

Contents

1 Overview ....................................................................................................................................... 11

1.1 Conventions and Definitions ........................................................................................................... 11

1.1.1 Conventions ............................................................................................................................ 11

1.1.2 Definitions ............................................................................................................................... 11

1.2 Organization of This Document ...................................................................................................... 12

1.3 Basic AT Command Processing Principles .................................................................................... 13

1.3.1 Ports ...................................................................................................................................... 13

1.3.2 AT Command Processing Mechanism................................................................................... 14

1.3.3 Recommended Timeout Mechanism for AT Commands Processed by a Host..................... 17

2 Initialization Application Scenarios ....................................................................................... 19

2.1 Startup Indication ^SYSSTART ...................................................................................................... 19

2.1.1 Reference Process ................................................................................................................ 19

2.1.2 Troubleshooting ..................................................................................................................... 19

2.2 Querying Basic Information ............................................................................................................ 20

2.2.1 Reference Process ................................................................................................................ 20

2.2.2 Troubleshooting ..................................................................................................................... 20

2.3 Network Service Operations .......................................................................................................... 21

2.3.1 Reference Process ................................................................................................................ 21

2.3.2 Troubleshooting ..................................................................................................................... 22

3 Serial Port Configuration Application Scenarios ................................................................. 23

3.1 Baud Rate Configuration ................................................................................................................ 23

3.1.1 Reference Process ................................................................................................................ 23

3.1.2 Troubleshooting ..................................................................................................................... 23

3.2 DTR Hang Up Data Services ......................................................................................................... 24

3.2.1 Reference Process ................................................................................................................ 24

3.2.2 Troubleshooting ..................................................................................................................... 24

3.3 DCD Pin Control ............................................................................................................................. 24

3.3.1 Reference Process ................................................................................................................ 24

3.3.2 Troubleshooting ..................................................................................................................... 25

3.4 Setting Hardware Flow Control ...................................................................................................... 25

3.4.1 Reference Process ................................................................................................................ 25

3.4.2 Troubleshooting ..................................................................................................................... 25

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