Masakazu Nakao wrote:
> 
> Dear Paul,
> 
> on 02.2.19 00.37, Paul Bruneau at paul_bruneau@... wrote:
> 
> > Because I've been having trouble with Xon/Xoff handshake, I thought I'd
> > give hardware handshaking a try. I have been using DIN to DB-25 adapter
> > cables to hook my serial printers to my Macs. I remember that to use
> > hardware handshaking used to require a special nine-pin serial cable on
> > the Mac side. Is this correct or does a "regular" 8-pin DIN type of
> > cable work?
> 
> Theoretically 8 pin DIN round connector does this.
> 9th pin works something else.

Thanks to you and to Ted for this. I get it now (finally) :)
 
> You need specially connected cable.
> Regular printer cable is a cross cable.  Some of them does not wired
> handshake line.

OK

> > PS: Is there anyone out there who is successfully using Xon/Xoff in FB3?
> > By successfully, I mean is it successfully stopping the output when the
> > serial device fills up? For me, everything is great until label #50 or
> > so, where data loss occurs due to overflow.
> 
> Which side? Printer or Mac?
> If Mac side, please raise buffer size.

The printer is overflowing. I am not receiving any data to the Mac for
this application.

Thank you and thanks Ted. I am testing a bunch of my cables and ordering
more. Here are some helpful URLs for the archive:

http://www.cc.ic.ac.uk/helpdesk/apriori/15.1452.html

http://www.mindspring.com/~jc1/serial/Resources/DIN8toDB25.html

PB