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    SubjectRe: RS485 communicatio
    On Sat, 2003-03-15 at 19:46, Pavel Machek wrote:
    > > I believe Point-to-Point Protocol only supports point-to-point symmetric
    > > links. Don't think there is any multi-point support in the protocol. IIRC,
    > > PPP also requires a full duplex link, which is not available on an RS-485
    > > link with more than two stations, even if it is a 4-wire link.
    > Get scarabd (I don't know *where* it is), it can run TCP/IP over slip over
    > half-duplex link. Performance is not too good.

    Robin O'Leary wrote most of it, so its probably somewhere like

    Half duplex performance is fine at a sensible speed and with decent
    reliability. On radio will collisions its a lot less pretty

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