11
LED indications
Table 2 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
Table 3 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
Table 4 Basic characteristics
Module
Name
Teltonika TM2500
Technology
GSM ,GPRS, GNSS, BLUETOOTH
GNSS
GNSS
GPS, GLONASS, GALILEO, BEIDOU, SBAS, QZSS,
DGPS
Receiver
33/99 acquisition channel
Tracking sensitivity
-165 dBM
Accuracy
< 3 m
Hot start
< 1 s
Warm start
< 25 s
Cold start
< 35 s
Cellular
Technology
GSM/GPRS
2G bands
Quad-band 850/900/1800/1900 MHz
GPRS
GPRS Mobile Station Class B
Data transfer
GPRS Multi-Slot Class 12 (up to 240 kbps)
Data support
SMS (text/data)
