Hi

After a year of the lathe being down I put new bubble memory in the machine and loaded the control tapes.
The machine now has an alarm 150 alarm-a coupling device illegal 4.
I seem to recall there was a plug in the round parallel port that had a wire jumping some pins because we don't have the Lns barfeeder installed.
The plug isn't there anymore as someone removed it without knowing what it done.
The control is a Osp 5000L. The machines a 1984.
Does anyone know what pins need to be jumped to make the alarm go away?

Thanks Brent