LED indications
Table 3 Navigation LED indications
Behaviour
Permanently switched on
Blinking every second
Off
Blinking fast constantly
Table 4 Status LED indications
Behaviour
Blinking every second
Blinking every two seconds
Blinking fast for a short time
Off
Meaning
GNSS signal is not received
Normal mode, GNSS is working
GNSS is turned off because:
Device is not working or Device is in
sleep mode
Device firmware is being flashed
Meaning
Normal mode
Sleep mode
Modem activity
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
LTE(CaT1)/3G(UMTS/HSPA)/2G(GSM/GPRS)/GNSS/BLU
Technology
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
EC21-AU: GSM: B2/B3/B5/B8
2G bands
EC21-EC: GSM: B3/B8
EC21-AU: WCDMA: B1/B2/B5/B8
3G bands
EC21-EC: WCDMA: B1/B8
EC21-AU: LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28
4G bands
EC21-EC: LTE FDD: B1/B3/B7/B8/B20/B28A
LTE:
Data transfer
11
LTE TDD: B40
LTE FDD: Max 10Mbps (DL)/Max 5Mbps (UL)
LTE TDD: Max 8.96Mbps (DL)/Max 3.1Mbps (UL)
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