Advantech FPM-3220 - Manual (Page 17)

9 Chapter 2 System Setup
2.2 Install the Power Adaptor
The power adapter could be mounted on the back cover with a power
adapter-mounting bracket in the accessory box as following figure
shown. In order to secure the power connector, there is a connector fixing
plate in the accessory box also, and it could be installed as shown in the
following figure.
Figure 2.2: Mounting the Power Adaptor