3. Introduction and Features (Continued)
3.2 LED Indicators
LED
Orange
State
TR-203A is being charged.
LED
Blink Quickly (Once per second)
State
TR-203A does not get GPS fix
LED
Blink Quickly (Once per second)
State
1.
2.
3.
Power Status LED
GPS LED
GSM LED
No SIM card inserted
TR-203A is searching GSM
network
SIM card is registering to
GSM network
7
Red
Battery power is low
Blink Slowly (Once every 3
seconds)
TR-203A gets GPS fix
Blink Slowly (Once every 3
seconds)
Standby Mode