I have a '91 4020 {cnc88} and I'm trying to max the memory in the control. A call to Fadal pointed me towards a REM 93 (128k) Aadd-on card for my existing memory board (1400-2a w/ a 1810-0 plug in card).
Fadal tried to convince me I'll never find what I need and offered me a control upgrade for @ $3,500.00. I'd appreciate and guidance to help me find this item.
Attached pic's show my existing card and the plug-in card
Thanks
Bill