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FIBOCOM L610 Series Hardware Guide
Page 36 of 59
3.5 USIM Interface
L610 modules provide USIM interface and support 1.8V and 3.0V SIM.
3.5.1 USIM Pin
USIM pins are shown in the following table:
Pin Name
I/O Pin
Description
USIM_DATA
I/O 15
USIM/SIM DATA
USIM_CLK
O
16
USIM/SIM Clock Signal
USIM_RESET
O
17
USIM/SIM RESET Signal
USIM_VDD
O
14
USIM/SIM Power
USIM_PRESENCE
I
13
Detect USIM/SIM card for Hot-swap
3.5.2 USIM Interface Circuit
3.5.2.1 SIM Card Slot with Detection Signal
USIM/SIM design requires the use of SIM card slot (recommended model: SIM016-8P-220P). It is
recommended to use hot plug slot with SIM detection function.