GL320M Series User Manual 
QSZTRACGL320MUM0100 
Contents 
0. Revision History ............................................................................................................................. 1 
1. Introduction .................................................................................................................................. 2 
1.1. GL320M Series Product ...................................................................................................... 2 
1.2. Reference ........................................................................................................................... 2 
1.3. Terms and Abbreviations .................................................................................................... 2 
2. Product Overview .......................................................................................................................... 3 
2.1. Product Appearance ........................................................................................................... 3 
2.2. Key/Type-C Interface Description ....................................................................................... 3 
2.3. LED Description .................................................................................................................. 4 
2.4. Parts List ............................................................................................................................. 5 
3. Interface Definition ....................................................................................................................... 6 
4. GL320M Device Cable Color (Optional Extension Cable) .............................................................. 7 
5. Getting Started .............................................................................................................................. 8 
5.1. Battery Charging ................................................................................................................. 8 
5.2. Turning On/off the Device .................................................................................................. 8 
5.3. External Power Supply Connection .................................................................................... 9 
5.3.1. External DC Charger Connection ............................................................................. 9 
5.3.2. External Battery Connection ................................................................................... 9 
5.4. Ignition Detection ............................................................................................................. 10 
5.5. External Input Connection ............................................................................................... 11 
6. Installation Precautions ............................................................................................................... 12 
7. Troubleshooting and Safety Info ................................................................................................. 13 
7.1. Troubleshooting ............................................................................................................... 13 
7.2. Safety Info ........................................................................................................................ 13 
8. Appendix: Supported Accessories ............................................................................................... 14