Okay, let’s discuss the question and this particular answer.
The question is, what kind of interface do you envision for Large Scale and why?
The answer was, for this post anyway, screw terminals.
To be useful to all, it is the only way.
Why?
Okay.
Let’s for a moment ignore the smaller percentage that uses dcc outdoors in poor weather on a regular basis.
For those doing radio/battery (a facet not generally found in smaller scales), space for batteries is a must, often the larger the better, but not always.
The “other” proposal uses a circuit board with a pair of sockets, which then requires a mating plug on the control board.
Anybody calculate the additional height requirements?
Rough guess, about 1/2" of vertical space lost.
Some of us who do this professionally have specific protocols for placement of components and batteries, usually trying to balance a load fore, aft, and athwartships.
To remove that ability by using a mandated board that removes our ability to be “creative” is not in the best interests of the majority.
A simple set of screw terminals will do all you need, be compliant with all, and take up a whole lot less room, plus allow “creative” placement of components.
Next issue is that suddenly, it’s a mandated “get on board or get left behind”, which means all previous iterations of control systems are obsolete.
Sure, you can solder them onto pads, or locate plugs to make your own.
Gold plate on sockets means MANDATORY gold plate on plugs to function.
The question then arises, what is the current standard?
I know NCE uses screw terminals.
One person has stated Lenz uses wires.
Soundtraxx uses 4 port screw terminal and a plug for “accessories”.
Zimo uses screw terminals.
RCS uses screw terminals.
Anybody want to add to that listing?
What we have works for EVERYBODY, and does not add to the space reduction.
The original discussion almost a year ago centered around CnT electronics, specifically the need to remove huge, unnecessary boards to allow battery placement.
When asked what I envisioned for a LS interface, without even pausing to take a breath, I replied “screw terminals”.
Didn’t even have to think about an answer, as I have been working this issue for 11 years.
Take a look at the dcc manufactures on-board with the “other” proposal.
They know nmra…indoors…mandated standards…but have not grasped the issues of sometimes really heavy current draw, nor have they calculated battery use, as they don’t care for the most part.
Their expertise is track-powered dcc.
One can just imagine the threat of the weight of the nmra being brought to bear if they don’t “get on board”.
So, we’re open for discussion on what will work for EVERYBODY, not just a small group.
Everybody is what I am fighting for here.
Not what may become OEM in some future locomotive.
Mylar identification strips on the floor at the terminals will identify each terminal.
If you cannot figure out how to remove the jumper and put the wires in, well, maybe there is a place for those “high-priced installers”.
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