Panasonic Web-Server FP - Manual (Page 35)

Hardware Description FP Web-Server V2.11
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2.8 Mechanical Installation
a) Adding to FP0:
1. Raise the expansion hooks on the top and bottom sides of the unit with a
screwdriver
2. You can align the pins and holes in the four corners of the control unit and
expansion unit, and insert the pins into the holes so that there is no gap
between the units
However you need not necessarily connect the FP Web-Server in this way.
Note:
Make sure that the FP Web-Server is the last unit attached. Otherwise the CPU
cannot communicate with the expansion units.