11
LED indications
Table 3 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 4 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 5 Basic characteristics
Module
Name
Quectel EC21-AU, Quectel EC21-EC, Teltonika TM2500
Technology
LTE(CaT1)/3G(UMTS/HSPA)/2G(GSM/GPRS)/GNSS/BLU
ETOOTH
GNSS
GNSS
GPS, GLONASS, GALILEO, BEIDOU, QZSS, AGPS
Receiver
Tracking: 33
Tracking sensitivity
-165 dBM
Accuracy
< 3 m
Hot start
< 1 s
Warm start
< 25 s
Cold start
< 35 s
Cellular
Technology
LTE Cat 1, UMTS, GSM
2G bands
EC21-AU: GSM: B2/B3/B5/B8
EC21-EC: GSM: B3/B8
3G bands
EC21-AU: WCDMA: B1/B2/B5/B8
EC21-EC: WCDMA: B1/B8
4G bands
EC21-AU: LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28
LTE TDD: B40
EC21-EC: LTE FDD: B1/B3/B7/B8/B20/B28A
Data transfer
LTE: LTE FDD: Max 10Mbps (DL)/Max 5Mbps (UL)
LTE TDD: Max 8.96Mbps (DL)/Max 3.1Mbps (UL)
