You need almost nothing:
 two MOC5007or H11L1 to separe tx and rx line.
 two voltage doublers if you try a supply from tx line
Vasile

On Fri, 16 Mar 2001, Richard Sloan wrote:

> Seen any site on internet showing this off.
>
> Would like to use something like MAX232 and some other parts to create optoisoltaed interface.
>
> R.
>
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