Here is a look inside the system’s case. When you remove the side panels if reveals two compartments, once on each side. The first side contains a off the shelf switching power supply which provides a range of voltages to the the system.
On the other side of the case are the logic boards. National made three variations of this developments system. The one I am showing here is for the HPC processors, and there were also versions for the COP400 and COP800 microcontrollers. The large board on top is called the brain board and is common to all three versions of the system. The brain board has the microprocessors and supporting hardware that provides the user interface to the system. Underneath the brain board in the personality board which provides all the target processor specific hardware. There were three different versions of the personality board, one for each target processor. The small board in the bottom left is the brain buffer board which has the electrical buffering between the brain board and the interface pod. I believe this board is also unique to each target processor.
