Quectel UC20

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 44 / 84
3.11.2. Design Considerations for USIM Connector
For 8-pin USIM connector, it is recommended to use Molex 91228. Please visit http://www.molex.com for
more information.
Figure 24: Molex 91228 USIM Connector
Table 13: Pin Description of Molex USIM Connector
Name
Pin
Function
VDD
C1
USIM card power supply.
RST
C2
USIM card reset.
CLK
C3
USIM card clock.
/
C4
Not defined.
GND
C5
Ground.
VPP
C6
Not connected.
DATA I/O
C7
USIM card data.
/
C8
Pull-down GND with external circuit. When the tray is present, C4
is connected to C8.