GV55N User manualTRACGV55NUM001 ‐ 19 ‐Note:1 - GSM LED cannot be configured.2 - GPS LED and PWR LED can be configured to turn off after a period of time using theconfiguration tool3 - Fast flashing is about 60ms ON/ 780ms OFF4 - Slow flashing is about 60ms ON/ 1940ms OFF3.11. Motion Sensor directionGV55N has an internal 3-axis accelerometer supporting driving behavior monitoring,power conservation and motion detection.The following is the direction of the motionsensor.GSM(note1)Device is searching GSM network Fast flashing(Note3)Device has registered to GSM network. Slow flashing(Note4)SIM card needs pin code to unlock. ONGPS(note 2)GPS chip is powered off OFFGPS sends no data or data format error. Slow flashingGPS chip is searching GPS info. Fast flashingGPS chip has gotten GPS info. ONPWR(note 2)No external power and internal battery voltage islower than 3.35V.OFFNo external power and internal battery voltage isbelow 3.5V.Slow flashingExternal power in and internal battery is charging Fast flashingExternal power in and internal battery is fullychargedON