On 3/2/26 16:16, Martin Bishop via cctalk wrote:
And, I would very much like information on the remote control interface ... No
manuals, no recollections, no anecdotes, ... I have asked in CNC land.
RS-323 was the standard for paper tape readers on CNC
machines. It was not a 5V logic level interface, but was
compatible with open-collector drive TTL chips.
Quite simple, 8-bit parallel with read forward, read reverse
and a handshake line.
MANY years ago I built a "BTR" (behind the reader) interface
for an Allen-Bradley CNC control.
Jon
