Huawei MG323 manual Description of the Application Interfaces, About This Chapter

HUAWEI MG323 GSM M2M Module
Hardware Guide	Description of the Application Interfaces

3 Description of the Application Interfaces

3.1 About This Chapter

This chapter mainly describes the external application interfaces of the MG323 module, including:

B2B Connector Interface

Power Interface

Power-On and Power-Off Time Sequence

Signal Control Interface

UART Interface

SIM Card Interface

Audio Interface

3.2B2B Connector Interface

The MG323 module uses a 50-pin B2B connector as its external interface. For details about the model and dimensions of the B2B connector, see “6.3 Dimensions of the B2B Connector”.

Figure 3-1shows the sequence and definitions of pins on the 50-pin B2B signal interface of the MG323 module.

Figure 3-1Sequence and definitions of pins on the B2B signal interface

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Issue 06 (2013-06-13)	Huawei Proprietary and Confidential	13
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