User's Guide

Smart Machine Smart Decision
SIM7100A EVB user Guide 20.08.20149
In this board, if user uses DC adapter as power supply, the J203 should be connected.
4.2 SIM card interface
FIGURE 5: SIM card socket
Table 2: SIM card socket
Pin Signal Input/Output Description
1
V_USIM
O
USIM Card Power output automatic
output on USIM mode，one is
3.0V±10%, another is 1.8V±10%.
Current is about 10mA.
2 USIM_RESET O USIM Card Reset
3 USIM_CLK O USIM Card Clock
4 GND Ground
5 SIM_VPP NC
6 USIM_DATA I/O USIM Card Data