Quectel EC25 User Manual

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 82 / 231
Parameter
<onoff> Integer type. The mode of automatic time zone update.
0 Disable automatic time zone update via NITZ.
1 Enable automatic time zone update via NITZ
3 Enable automatic time zone update via NITZ and update LOCAL time to RTC
Example
AT+CTZU?
+CTZU: 0
OK
AT+CTZU=?
+CTZU: (0,1,3)
OK
AT+CTZU=1
OK
AT+CTZU?
+CTZU: 1
OK
6.7. AT+CTZR Time Zone Reporting
This command controls the time zone reporting of changed event. If reporting is enabled, the MT returns
the unsolicited result code +CTZV: <tz> or +CTZE: <tz>,<dst>,<time> whenever the time zone is
changed. The configuration is stored to NV automatically.
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
AT+CTZR Time Zone Reporting
Test Command
AT+CTZR=?
Response
+CTZR: (0-2)
OK

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC