Cinterion
®
MV31-W Hardware Interface Description
3.2 Characteristics
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 33 of 76
3.2.8
SIM/UICC Interface
The 5G M.2 Data Card MV31-W provides a SIM/UICC interface at the 75-pin application con-
nector compliant to the ISO/IEC 7816-3 specification. The SIM interface is intended for 1.8V
and 3V SIM cards in accordance with GSM 11.12 Phase 2.
The following table lists the pins available for the SIM/UICC interface. A second SIM interface
is optionally available. With the embedded SIM (eUICC) hardware variant, the lines for the sec-
ond SIM interface are internally connected to the eUICC (see
).
Figure 14:
SIM Detection Circuit
Note: No guarantee can be given, nor any liability accepted, if loss of data is encountered after
removing the SIM card during operation. Also, no guarantee can be given for properly initializ-
ing any SIM card that the user inserts after having removed the SIM card during operation. In
this case, the 5G M.2 Data Card MV31-W must be restarted.
The total cable length between the 5G M.2 Data Card MV31-W socket pads and the pads of
an external SIM card holder must not exceed 100mm in order to meet the specifications of
3GPP TS 51.010-1 and to satisfy the requirements of EMC compliance (see
Table 8:
Signals of the SIM interface
Signal
Description
UIM_1_CLK
UIM_2_CLK
SIM clock
UIM_1_PWR
UIM_2_PWR
SIM supply voltage.
UIM_1_DATA
UIM_2_DATA
Serial data line, input and output.
UIM_1_RESET
UIM_2_RESET
SIM reset
SIM_DETECT_1
SIM_DETECT_2
SIM insertion detection (Low = no SIM inserted, see
