click on overlay
for module details
The printed circuit board is a high-quality, double-sided board with plated thru-holes, silkscreen and solder mask, and measures 279mm x 123mm (11" x 4.9").
As you can see from the overlay above each module is built within its own discrete area and its only connections with other modules is via the power rails.
pcb top layer - pcb bottom layer
(Both layers viewed from component side)