Recently acquired an ASR33 with an old EIA (RS-232) Interface convertor module. ? It came with a two page spec and cable pinout sheet that is more hole than it is paper. Manufacturer is United Data Services (UDS) in Phoenix.? Model seems to be 312 A 0568? (might be 0563)? Google hasn't been much help and Bitsavers is silent as well..? Herb Johnson of Retrocomputing.com has 312 A 0567 which appears similar but not close enough to be useful. Anyone familiar with this unit who could share docs??? (willing to scan and share if desired) Steve