Product Concept; Key Features - Quectel M12 Hardware Design

M12 Hardware Design

2. Product concept

M12 is a Dual-band GSM/GPRS engine that works at frequencies of GSM900MHz and
DCS1800MHz. M12 features GPRS multi-slot class 12 and supports the GPRS coding schemes
CS-1, CS-2, CS-3 and CS-4. For more details about GPRS multi-slot classes and coding schemes,
please refer to Appendix A and Appendix B.
With a tiny profile of 29mm× 29mm× 3.6 mm, the module can meet almost all the requirements for
M2M applications, including Tracking and Tracing, Intelligent Instrument, Wireless POS,
Security, Telematics, Remote Controlling, etc.
M12 is a SMD type module, which can be embedded in customer application through its 64-pin
pads. It provides all hardware interfaces between the module and customer's host board.
Designed with power saving technique, the current consumption of M12 is as low as 1.3 mA in
SLEEP mode when DRX is 5.
M12 is integrated with Internet service protocols, which are TCP/UDP, FTP and HTTP. Extended
AT commands have been developed for customer to use these Internet service protocols easily.
The modules are fully RoHS compliant to EU regulation.

2.1. Key features

Table 3: Module key features
Feature
Power supply
Power saving
Frequency bands
GSM class
Transmitting power
GPRS connectivity
Temperature range
M12_Hardware_Design_V3.3
Implementation
Single supply voltage: 3.3V ~4.6V
Typical supply voltage: 4V
Typical power consumption in SLEEP mode：1.3mA@ DRX=5

Dual-band: GSM900, DCS1800

The module can search these frequency bands automatically

The frequency bands can be set by AT command.

Compliant to GSM Phase 2/2+
Small MS

Class 4 (2W) at GSM900

Class 1 (1W) at DCS1800

GPRS multi-slot class 12 (default)

GPRS multi-slot class 1~12 (configurable)

GPRS mobile station class B

Normal operation: -35° C ~ +75° C
1.2mA@ DRX=9
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