LED indications
Navigation LED indications
Behaviour
Meaning
Permanently switched on
GNSS signal is not received
Blinking every second
Normal mode, GNSS is working
Off
GNSS is turned off because: Device is not working or
Device is in sleep mode
Blinking fast constantly
Device firmware is being flashed
Status LED indications
Behaviour
Meaning
Blinking every second
Normal mode
Blinking every two seconds
Sleep mode
Blinking fast for a short time
Modem activity
Off
Device is not working or Device is in boot mode
Characteristics
Basic characteristics
Module
Name
AIT 250
Technology
GSM, GPRS, GNSS, BLUETOOTH
GNSS
GNSS
GPS, GLONASS, GALILEO, BEIDOU, SBAS,
QZSS,
DGPS, AGPS
Receiver
33 channel
Tracking sensitivity
-165 dBM
Accuracy
< 3 m
Hot start
< 1 s
Warm start
< 25 s
Cold start
< 35 s
Cellular
GSM
GSM
2G bands
Quad-band 850/900/1800/1900 MHz
Data transfer
GPRS Multi-Slot Class 12 (up to 240
kbps), GPRS Mobile
Station Class B
Data support
SMS (text/data)
Power
Input voltage range
10 - 30 V DC with overvoltage protection
Internal fuse
3 A, 125 V
