Looking at Professor Ferland's supervisor build from the Moshix M92 video, I see that there are additional unit record devices defined.
I have a sockdev reader defined in my hercules config at x'02c', running the $$a$sup1 supervisor in the Shedlock 5 pack. Submitting a job to that reader does not seem to do anything, until I did a PSTART RDR,02C.
If I IPL the Beaulieu system (using the $$a$supt supervisor), I can submit jobs to the reader at x'02c' just fine without manually issuing a PSTART.
Looking at GC33-5403-1 DOS/VS Power/VS Installation and Operations (Sept 74), there are probably a PSTART for the reader at 02C in the autostart deck on the Beaulieu system. How does a novice change the AUTOSTART deck?