10. LED DIODES INDICATION
LED diodes, mounted directly on printed circuit, are purposed to show actual
condition of the device.
10.1.
LOGGING TO GSM NETWORK
Once SIM card has been inserted into the device and power supply was turned on
logging to GSM system follows.
LED Diodes
Description
Green Red
Logging to GSM
10.2. GSM RANGE
Flickering of a green diode indicates GSM signal (1-8 flickers).
Device operation mode is signalled with a green diode on during 2 seconds once the
range was detected. If after signalling range diode will not flash for 2 seconds the
device is in SMS mode. Range indication is interrupted during data transmission,
and after sending of data again GSM range is being indicated.
LED Diodes
Description
Green Red
GSM range = 8
GPRS mode
GSM range = 6
SMS mode
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