Quectel SC20 User Manual

LTE Module Series
Smart EVB User Guide
Smart_EVB_User_Guide Confidential / Released 18 / 29
3.4. USIM Card Interfaces
The Smart EVB has two USIM card interfaces. A suitable USIM card (3V or 1.8V) is required to start the
Smart module. The following figure and table show the simplified interface schematic and pin assignment
of J503.
USIM card holder
USIM
_
VDD
USIM_CLK
USIM
_
DATA
USIM_RST
USIM_GND
EVB
J 503
C1
C7
C2
C3
Push-Push
USIM_VDD
USIM_
DATA
USIM_
RST
USIM_CLK
USIM
_
PRE
GND
USIM
_
DETECT
CD2
CD1
Figure 12: Schematic of Simplified USIM Card Interfaces
Figure 13: Pins Assignment of USIM Card Holder
Quectel
Confidential

Quectel SC20 Specifications

General

Brand	Quectel
Model	SC20
Category	Control Unit
Language	English