USGlobalsat TR-600 - Manual (Page 7)

7
1.6 LED indicator
Power Status LED (Red)
LED Permanently On
State Main power on, device on
GPS LED (Yellow)
LED Permanently off Fast blinking (Once
every 1 second) Slow blinking (Once
every 3 seconds)
State GPS off GPS not fix GPS fix
GSM LED (Green)
LED Permanently off Fast blinking (Once
every 1 second) Slow blinking (Once
every 3 seconds)
State GSM off 1. TR-600 is
searching GSM
network
2. SIM card is
registering to GSM
network
TR-600 is registered
full service