Gps Serial Ports And Power - SimCom SIM508EVB User Manual

SIM508 EVB User Guide

4.5 GPS serial ports and power

Pin Signal
1 GPS_TXB
2 GPS_TXA
3 GPS_RXB
4 GPS_RXA
5 GPS_VCC_RF
6 GPS_VANT
7 GPS_VCC_RF
8 GPS_VRTC
9 GND
10 GND
SIM508-EVB_UGD_V1.01
Figure 18: GPS serial ports
I/O
O
O
GPS serial interface.
I
I
I Power supply for 3V active antenna.
External DC power supply for an active
I
antenna.
I Power supply for 3V active antenna.
I Apply 3V dc for backup RTC & SRAM.
GND
GND
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