We should also mention that the PDF documentation has some graphics showing how these components are (physically) connected together at https://dps8m.gitlab.io/dps8m-r3.0.1-archive/R3.0.1/omnibus/... (pages 49 through 52).

If you'd prefer not to have to view the PDF, the images are reproduced here: https://imgur.com/a/x3fy4nO