Facit 4070 to PC interface

Most punches with a parallel input can be cross wired to a parallel port. If the strobe is upside down, you can use one of the other signals. Many punches have a jumper for the strobe polarity. Dwight ________________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Charles Dickman <chd at chdickman.com> Sent: Wednesday, May 4, 2016 5:52:29 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Facit 4070 to PC interface Has anyone ever worked up a PC parallel port to Facit 4070 paper tape punch interface? I found one on a Swedish website. The punch parallel input looks like it is TTL compatible, but I can't find anything in the documentation that describes the input voltage specifications. Chuck