On Sat, 06 Jul 2013 16:42:58 -0400, you wrote:

>I will be building a small network of 4 clients to send one of the=20
>house's 4 heating/cooling zones temperature and humidity to a central=20
>processor. The client likely will be 18F1320, and the processor 18F4320=20
>since I have a few laying around, but could consider something=20
>different. The client will also have a LCD display. The processor will=20
>based on temperature and humidity sent the house HVAC zone controller=20
>and humidifier signals (24VAC) via relays based on current set conditions.
>
>The 4 zone lengths from the processor range from 10 to 50 feet and=20
>planning to use cat-5 cable. 2 pair for power to the client, and one=20
>pair for RS-485 signal. The network speed can be very slow, even down to=20
>300 baud, since 1 message from each client in 1second and a message=20
>length of maybe 20 characters at most would be a lot.
>
>The question is: Will a star arrangement work, and what should the=20
>terminating resistors be?

That will work fine up to a good few kbaud, no need for terminators at that=
 distance


--=20
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