Advantech HMI-640S - Manual (Page 65)

Chapter 4 CPC-2245N Main Borad 55
4.11 Power supply connector (CN5)
In single board computer without carrier applications, user may
connect a power directly to the CPC-2245N board through CN5. See
the following table for its pin assignments:
Table 4-19: Power supply connector (CN5)
Pin Function
1 NC
2 GND
3 GND
4 +5 V