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Paul wrote:

> Can anyone suggest some RS-485 chips
>
> Does anyone know what they actually do (l think they drive the line with current rather than voltage?) and can they be emulated with transistors or the like ? If anyone has any circuits of line drivers for this application can you let me know please.
>
> Also need a decent australian supplier and prices (rough)...
>
> thank you
>
> Paul Drummond
> geniesys@alphalink.com.au
>
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