Quectel M12 User Manual

M12 Hardware Design
M12_Hardware_Design_V3.3 - 14 -
 Restricted operation: -40°C ~ -35°C and +75°C ~ +80°C
1)
 Storage temperature: -45°C ~ +85°C
DATA GPRS
CSD
 GPRS data downlink transfer: max. 85.6 kbps
 GPRS data uplink transfer: max. 85.6 kbps
 Coding scheme: CS-1, CS-2, CS-3 and CS-4
 Support the protocols PAP (Password Authentication Protocol)
usually used for PPP connections
 Internet service protocols TCP/UDP/FTP/HTTP/MMS/SMTP
 Support Packet Switched Broadcast Control Channel (PBCCH)
 CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps non-transparent
 Support Unstructured Supplementary Services Data (USSD)
SMS
 MT, MO, CB, Text and PDU mode
 SMS storage: SIM card
SIM interface
Support SIM card: 1.8V, 3V
Antenna interface
Connected via 50 Ohm antenna pad
Audio features
Speech codec modes:
 Half Rate (ETS 06.20)
 Full Rate (ETS 06.10)
 Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
 Adaptive Multi-Rate (AMR)
 Echo Suppression
 Noise Reduction
Serial interface
Serial Port:
 Seven lines on serial port interface
 Used for AT command, GPRS data and CSD data
 Multiplexing function
 Support autobauding from 4800 bps to 115200 bps
Debug Port:
 Two lines on second serial port interface DBG_TXD and
DBG_RXD
 Used for software debugging and log output
UART3:
 Used for AT command
Phonebook management
Support phonebook types: SM, FD, LD, RC, ON, MC
SIM Application Toolkit
Support SAT class 3, GSM 11.14 Release 99
Real time clock
Implemented
Alarm function
Programmable via AT command
Physical characteristics
Size:
29±0.15×29±0.15×3.6±0.3mm
Weight: 6g
Firmware upgrade
Firmware upgrade over Serial Port
1) When the module works in the temperature range, the deviation from the GSM specification
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Quectel M12 Specifications

General

Brand	Quectel
Model	M12
Category	Control Unit
Language	English