Quectel LTE-A Series Hardware Design page 40

USIM_GND 24
The module supports (U)SIM card hot-plug via the USIM_DET pin. The function, which supports low-level
and high-level detections, is disabled by default. Please refer to document [1] about AT+QSIMDET
command for details.
Below is a reference design for (U)SIM card interface with an 8-pin (U)SIM card connector.
USIM_GND
USIM_VDD
USIM_RST
Module
USIM_CLK
USIM_DET
USIM_DATA
Figure 18: Reference Design of (U)SIM Interface with 8-Pin (U)SIM Card Connector
If (U)SIM card detection function is not needed, please keep USIM_DET disconnected. A reference
design for (U)SIM interface with a 6-pin (U)SIM card connector is shown below.
Module
Figure 19: Reference Design of (U)SIM Interface with 6-Pin (U)SIM Card Connector
EG060V-EA_Hardware_Design
Dedicated ground for (U)SIM card
VDD_EXT USIM_VDD
51K
22R
22R
22R
NM
USIM_VDD
15K
USIM_GND
USIM_VDD
22R
USIM_RST
USIM_CLK
22R
22R
USIM_DATA
NM
15K
100 nF
NM NM
GND
100 nF
(U)SIM Card Connector
NM
NM
GND
LTE-A Module Series
EG060V-EA Hardware Design
(U)SIM Card Connector
VCC GND
RST VPP
IO
CLK
GND
VCC GND
RST VPP
CLK IO
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