Byron A Jeff wrote:
> I wouldn't go this far. EIA-485 can work fine if a token bus protocol is
> implemented on top of standard multidrop connection. It can simulate
> arbitrary peer to peer quite easily. However as I pointed out in my other
> post, that adding a signalling channel out of band from the data can
> reduce the amount of negotiating time and the amount of dead time from passing
> the token to nodes who don't need to transmit.

This is what I had in mind. I don't need much bandwidth so I'm not too worried
about signaling overhead.

In such a system is a token managing node usually employed or is each node given
an address to pass the token to when its done? I'm wondering how hard its going
to be to add new nodes later.

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