Schematics included with the Atari 850 serial interface might interest
you. This interface does RS232, and both 20ma and 60ma current loop for
tty interfacing. Interested? I'll scan em'. You might find the same on
the web though, if you look for Atari 850. You'd be looking for details
of port #s 3 and 4 of the four available on the 850 interface.
Regards,
Jeff
In <5.0.2.1.2.20010421003144.02e66070_at_mail.zipcon.net>, on 04/23/01
at 07:03 PM, Geoff Reed <geoffr_at_zipcon.net> said:
>I need to test a device that uses sensors that send back a signal using a
> 0-20MA current. anyone know of a source of a schematic to make something
>to generate such in 1 ma increnemts? or have any tips???
--
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Received on Mon Apr 23 2001 - 18:03:17 BST