User Manual

GSM/GPRS Module Series
GC10 Hardware Design
GC10_Hardware_Design Confidential / Released 51 / 76
Figure 35: Molex 91228 SIM Card Holder
Table 13: Pin Description of Molex SIM Card Holder
Name Pin Description
SIM_VDD C1 SIM card power supply
SIM_RST C2 SIM card reset
SIM_CLK C3 SIM card clock
SIM_PRESENCE C4 SIM card presence detection
GND C5 Ground
VPP C6 Not connect
SIM_DATA C7 SIM card data I/O
SIM_DETECT C8
Pull down GND with external circuit. When the
tray is presented, C4 is connected to C8.