PLI Manual(s)?

[Iesca]

I have a PLI (Peripheral Land Inc) CD-ROM drive which I've brought to working order, but like many of PLI's products from that period, it has a row of dip switches for what I can only assume is for termination.

Would anyone happen to have a PLI manual that explains the operation of these switches? Any of them will probably do, it doesn't have to be for the "PL CD-ROM" specifically, it can be for one of their hard drives, as long as it explains those switches.

Thanks!