HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3.7.2 Circuit Recommended for the USIM Card Interface
As the ME909u-521 module is not equipped with a USIM socket, you need to place a
USIM socket on the user interface board.
Figure 3-16 shows the circuit of the USIM card interface.
Figure 3-16 Circuit of the USIM card interface
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