National Semi's AN-1057 is good explanation of rs485.

It's on their web site, or reply to me and I'll send a pdf file.

>Somebody mentioned they were using PICs to communicate over RS485
>in an industrial control situation, and requested comments.


John Griessen  CIBOLO Metal Works
512 451-8207 FAX 451-0753


http://www.aus-etc.com/~cibolo/cibolo/