I2C And Power Connector Interface; Figure 9. I2C And Power Measurement Connector - Lantronix PNT-SG3FS-EVAL User Manual

Note: Please use a DC blocker for passive antenna or connection of a GNSS simulator to the
PNT-SG3FS-EVAL unit.

I2C and Power Connector Interface

22B
The 10-pin CN302 connector highlighted in Figure 9 below provides I2C bus signal and pins to
measure power consumption.
Pin
1
2
3
4
5
6
7
8
9
10
The VCC_IO (pin #1), GND (#2), I2C_CLK (#5), and I2C_SD (#6) pins allow connection of an
external I2C-Master-device to the PNT-SG3FS.
The PNT-SG3FS always acts as slave on I2C-bus.
PNT-SG3FS Evaluation Kit User Guide
Figure 8. I2C and Power Measurement Connector
Table 2. Connector Pin Description
Connector Signal
VCC_IO
GND
Module.Pin#5
Module.Pin#18
I2C_CLK
I2C_SD
VBAT
PM_VBAT
VCC
PM_VCC
Description
3V3 power supply
Ground connection
I2C clock signal
I2C SDA signal
VBackup power supply
VBackup measure point
VCC power supply
VCC measure point
4. Interfaces
13