Dave Plowman (News) wrote:
I need a longish serial cable to get from the workshop computer to the
bench. Say 4 mtr. I already have the D connectors and wonder what would be
the most suitable cable I have 'in stock' Only need the send and return -
no 5v. Would balanced mic cable do - or two co-ax? I do have some decent
video co-ax but two would be a bit big to fit the D connector shells.

At that length you really need signal return and *ground* at least.

You wont get a huge speed over 4 meters.
I would use cat 5 for fixed wiring, or maybe even lightweight mains..


Bear in mind you will have to use either no flow control or Xon/Xoff if
you only use three wires.

5, to get DTR/DSR, is better.