Dave Plowman (News) wrote:
In article ,
John Rumm wrote:
Dave Plowman (News) wrote:
In article ,
Mike Tomlinson wrote:
No - TX and RX and obviously ground. Those are the only connections
on the device DB9.
High baud rate and no hardware handshaking, though 4m is not long for
RS232. I'd suggest a good quality screened cable. The mic cable
suggested by another poster should do the trick. Connect the screen
to the plug body at the PC end.
That's a good idea even if it's also connected to pin 5?

Its better to keep signal ground and screen separate... so generally I
use a core in a screened cable for signal ground, and save the screen
for its intended purpose.

I don't actually have any 3 core screened.

As it happens mic cable works just fine. There was a fault in the wiring
instructions for the serial to RG45 lead they supplied with the D socket
loose - TX and RX reversed. Which to be fair was in the errata at the end
of the instructions. ;-)

Often happens - not helped by the swap over of TX and RX between
connector sizes.


--
Cheers,

John.

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