RE: xAP - The Proposed Architecture Explained...

[ian.bird@xxxxxxx]

Not quite as the controller does not have to be at one end, anywhere is
fine.

This applies to RS485 as I know a bit about this. Other topologies
maybe
different.

Ian

Ciba Vision (UK) Ltd
Tel:+44(0)1489 775570
Fax:+44(0)1489 779570
E mail: ian.bird@xxxxxxx

> -----Original Message-----
> From: BUTLER, Tony, FM [mailto:roaming@xxxxxxx]
> Sent: 15 August 2002 09:57
> To: 'ukha_d@xxxxxxx'
> Subject: RE: [ukha_d] xAP - The Proposed Architecture Explained...
> 
> 
> Thanks Ian,
> 
> So the answer is actually "yes the displays _are_ connected 
> in a daisy chain
> to the controller"!
> 
> Tony
> (Satisfied)
> 
> > -----Original Message-----
> > From: ian.bird@xxxxxxx
> > [mailto:ian.bird@xxxxxxx]
> > Sent: 15 August 2002 09:36
> > To: ukha_d@xxxxxxx
> > Subject: RE: [ukha_d] xAP - The Proposed Architecture
Explained...
> > 
> > 
> > Hi Tony
> > 
> > In an RS485 network the term multidrop and daisy chain go 
> > hand in hand.
> > Think of a single piece of two strand cable running round the
> > various rooms
> > of the house. When you want to add a device to it you just crimp
the
> > connections to the main wires. Note there are no T junctions 
> > and as small as
> > possible a neck to the device. Add on loads of devices and 
> > you have multi
> > drop. The devices at each end have termination resistors on 
> > to stop signal
> > reflections but that is getting techy.
> > 
> > HTH
> > 
> > Ian
> > 
> > Ciba Vision (UK) Ltd
> > Tel:+44(0)1489 775570
> > Fax:+44(0)1489 779570
> > E mail: ian.bird@xxxxxxx
> > 
> > 
> > > -----Original Message-----
> > > From: BUTLER, Tony, FM [mailto:roaming@xxxxxxx]
> > > Sent: 15 August 2002 08:24
> > > To: 'ukha_d@xxxxxxx'
> > > Subject: RE: [ukha_d] xAP - The Proposed Architecture
Explained...
> > > 
> > > 
> > > > > So the displays are connected in a daisy chain to
the 
> > controller?
> > > > 
> > > > No multi drop
> > > 
> > > Sorry for being thick here - could you explain multi drop to
me?
> > > The only contect I have seen it used in before is in 
> > relation to KAT5
> > > modules and a "multidrop" installation there _is_
> > > daisy-chained, 10base-T
> > > style......
> > > 
> > > thanks,
> > > 
> > > 
> > > Tony
> > > 
> > > 
> > > 
>
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