User's Manual

H380 M.2 Series Module Hardware User Manual page
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5.5 USIM Interface
H380 WIRELESS COMMUNICATION module supports USIM and high speed SIM card, does not support
8 line smart USIM yet.
5.5.1 USIM pin-out
Pin No Name Type Description
36 UIM_PWR O USIM POWER
30 UIM_RESET O USIM Reset
32 UIM_CLK O USIM clock
34 UIM_DATA I/O USIM data
66 SIM_DETECT I
The detection signal for SIM inserting.
The interior of M.2 module has pulled up.
H: SIM is present.
L: SIM is absent
5.5.2 USIM
5.5.2.1 Normally Closed SIM Circuit Design
Reference Design:
Figure 5- 7 Normally Closed SIM Circuitr Reference Design
Normally closed SIM Connector:
1）Pull out SIM card, pin 7 and pin 8 short.