I had to install a BTR (Behind the Tape Reader) which emulates the existing tape reader. Search internet for Okuma BTR and you'll get lots of choices. Mine came from Advanced Digital Research (ADR).
ADR BTR forOkuma OSP5000with Sanyo 2302 Tape Reader
It hooks up to your existing DNC system just like any other machine.
ADR BTR forOkuma OSP5000with Sanyo 2302 Tape Reader
It hooks up to your existing DNC system just like any other machine.