User's Manual

https://www.cnthinkpower.com
1 Introduction
This document is the user manual of TL904D equipment provided by Think Power
Technology Co., Ltd. which introduces examples of product startup, upgrade, online
confirmation and protocol analysis.
2 Abbreviation
Abbrev. Extraction
GPS Global Positioning System
SMS Short Message Service
3 Illustration
Indicator light Indicator status Status
Green
GSM indicator
FLICKER QUICKLY
(100MS ON/400MS OFF)
NETWORK SEARCHING
ALWAYS OFF SLEEP
ALWAYS ON
NETWORK CONNECTION
SUCCESSFUL
Blue
GPS indicator
FLICKER QUICKLY
(100MS ON/400MS OFF)
GPS IS NOT FIX
ALWAYS ON GPS FIX
ALWAYS OFF GPS FAULTY
Red
Power indicator
ALWAYS OFF
NO POWER, EQUIPMENT NOT
WORKING, SLEEP, ETC
ALWAYS ON THE POWER SUPPLY IS NORMAL
FLICKER SLOWLY
(1000MS ON/1000MS OFF)
CHARGE
FLICKER QUICKLY
(100MS ON/400MS OFF)
LOW ELECTRICITY