LTE-A  Module  Series 
 EM06  Series  Hardware  Design 
EM06_Series_Hardware_Design                                           29  / 69 
 
 
 
 
 
3.7. (U)SIM Interfaces   
 
The (U)SIM interface circuitry meets ETSI and IMT-2000 requirements. Both 1.8 V and 3.0 V (U)SIM 
cards are supported, so does the Dual SIM Single Standby function.   
 
Table 9: Pin Definition of (U)SIM Interfaces 
 
EM06 series modules support (U)SIM card hot-plug via the USIM_DET pin, a level trigger pin normally 
Please ensure that there is no large capacitance on the RESET# pin. 
Power supply for (U)SIM1 
card 
Either 1.8 V or 3.0 V is supported 
by the module automatically. 
(U)SIM1 card insertion 
detection.   
Active high.   
Pulled up internally 
When (U)SIM1 card is present, it 
is at high level. 
When (U)SIM1 card is absent, it is 
at low level.   
Power supply for (U)SIM2 
card 
Either 1.8 V or 3.0 V is supported 
by the module automatically. 
(U)SIM2 card insertion 
detection.   
Active high.   
Pulled up internally 
When (U)SIM2 card is present, it 
is at high level. 
When (U)SIM2 card is absent, it is 
at low level.