Jerry,
As you increase speed, you increase the load on the computer and each of the
nodes to service the traffic. You also increase your sensitivity to noise on
the wires as well as reduce the maximum length of the wires you are allowed.
Instead I go for finding the slowest speed that doesn't miss events at the
layout end. If I have something that is very short cycle times, I would bump
up the baud rate. Remember for each node you have to allow for the traffic
to poll it and listen for the reply. You sum that to come up with the whole
layout cycle time. Is 200mS ok or do you need 50mS? I suggest start slow and
then bump up if needed.
-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.com
www.syracusemodelrr.org
Ken Cameron