Re: Combined RS232/485 Interface Chips

"Tauno Voipio" <[EMAIL PROTECTED]> writes:

> "John Devereux" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> 
> > It wouldn't. The RS232 chip, or portion of the chip, would be used
> > when the connection is RS232.
> >
> > The application is a piece of industrial test equipment. At this stage
> > it looks like it will be used with RS232 (connected to a PC). But in
> > the future we might want to network them with RS485, for example. If
> > there is a low cost, simple way to make the interface software
> > selectable between RS485 and RS232 that would be nice.
> 
> My experience is that the industrial customers want both RS-232 and RS-485
> offered, but nobody buys the RS-485 version or is willing to obey a
> half-duplex protocol (which is an absolute necessity with RS-485). This
> experience is gathered during nearly 20 years of process instrumentation.


Hi Tauno,

Yes, you are right (although this is early days yet for the product),
this is already starting to sound familiar!




-- 

John Devereux