GL521MG User Manual
QSZTRACGL521MGUM0100
Contents
0. Revision History
...............................................................................................................................
1
1. Introduction
.....................................................................................................................................
2
1.1. GL521MG Product
................................................................................................................
2
1.2. Reference
..............................................................................................................................
2
1.3. Terms and Abbreviations
......................................................................................................
2
2. Product Overview
............................................................................................................................
3
2.1. Product Appearance
.............................................................................................................
3
2.2. Key Description
.....................................................................................................................
3
2.3. LED Description
....................................................................................................................
4
2.4. Parts List
...............................................................................................................................
5
3. Interface Definition
..........................................................................................................................
6
4. Getting Started
................................................................................................................................
7
4.1. Opening and Closing the Case
..............................................................................................
7
4.2. Turning on/off the Device
....................................................................................................
7
4.3. Installing a SIM Card
.............................................................................................................
8
5. Installation Precautions
...................................................................................................................
9
6. Troubleshooting and Safety Info
...................................................................................................
10
6.1. Troubleshooting
..................................................................................................................
10
6.2. Safety Info
...........................................................................................................................
10
7. Appendix: Supported Accessories
.................................................................................................
11