LTE Module Series
M.2 EVB User Guide
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C1
C2
C3
C7
C6
C5
C1
C2
C3
C7
C6
C5
CD1
CD2
CD1
CD2
J402
J401
Figure 18: Pin Assignments of J401/J402
Table 7: Pin Assignments of J401/J402
Pin No.
Signal Name
I/O
Description
C1
SIM_VDD
PO
(U)SIM card power supply, provided by M.2 EVB
C2
SIM_RST
DO
(U)SIM card reset
C3
SIM_CLK
DO
(U)SIM card clock
C5
GND
/
Ground
C6
VPP
/
Not connected
C7
SIM_DATA
I/O
Data line, bi-directional
CD1
/
/
(U)SIM card insertion detection
CD2
SIM_PRESENCE
I/O
(U)SIM card insertion detection When the (U)SIM
card is present, it is at high level (pulled up to 1.8V).
When the (U)SIM card is absent, it is at low level.