Usb Interface; Switch Interface - SimCom SIM7100x EVB User Manual

4.7 USB interface

Table 8: USB interface
Pin Signal
1 VBUS
2 USB_D+
3 USB_D-
4 GND

4.8 Switch interface

Table 9: The Description of the Switch status
S204 Status
Off
On
S301 Status
Off
On
SIM7100x EVB User Guide
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Figure 11: USB Interface
I/O
I
I/O
I/O
Figure 12: Switch Interface
Description
The RS232 transceiver is closed.
The RS232 transceiver is open.
Description
The RF circuit of SIM7100x is closed.
The RF circuit of SIM7100x is open.
17
Smart Machine Smart Decision
Description
5V
D+ line
D- line
Ground
2015-07-20