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Tracking
Unit
LED
Indicators
GSM
LED
Status:
1.
LED
(Green)
Reserved
2.
LED
(Red)
If LED flashes (once per second):
Device is scanning SIM, registering to GSM network or connecting to carrier.
If LED stays on continuously:
Device is connected to GPRS network. Device is able to receive commands over GPRS and SMS and send data to server.
3.
LED
(Blue)
If LED flashes (once per second):
Device is searching GPS signal
If LED stays on continuously:
Device has GPS lock.
If LED flashes rapidly (twice per second):
GPS module error or communication between GPS module and device CPU is interrupted.
4.
LED
(Red)
Reserved
1
2
3
4
Содержание NTT-101
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