HUAWEI EM820W HSPA+ PC Embedded Module
Hardware Guide
Description of the Application Interfaces
Issue 01 (2010-12-09)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
11
Figure 3-2
USIM interface
schematic
on PC
Figure 3-3
Pin definition of the SIM card Socket
pin1: SIM_VCC
pin4: GND
pin2: SIM_RESET
pin5: NULL
pin3: SIM_CLK
pin6: SIM_DATA
3.6.2 Design Guide
The USIM signals are connected to the Mini PCI Express card connector (the card
edge connector) and pass through an EMI filtering and ESD protection circuit on the