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RE: Nigels IR System
- To: ukha_d@xxxxxxx
- Subject: RE: Nigels IR System
- From: nigel@xxxxxxx
- Date: Wed, 22 Nov 2000 21:27:48 -0000 (GMT)
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
On 18-Nov-2000 Mick Furlong wrote:
> Is there any reason these couldn't be plugged into cat 5 sockets,
> say
> two transmitters and 5 receivers, and then the cat 5s bridged at
> node
> 0 to make a bus ?
>
> I don't see any problem with this apart from the total amount of
> cable
> that would make up the bus....is this likely to be a problem?
I wouldn't have thought so, but I've not yet tried a full system
myself... It might fail due to noise induced on the cable, but I'd
expect it to work fine. Mine will be similar, with about 10m from a
typical receiver (in a PIR) to 'wiring central'.
Cable lengths are usually a problem for:
Noise pickup- worst when the circuit is high impedance- these aren't
particularly
Capacitance- worst at high speed- this link sends demodulated data
which is pretty slow
Voltage drop- worst at high current- this link doesn't have much
current flowing.
Nigel
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