Hello, I got the Walthers 90ft dcc turntable and NCE power cab to introduce me to dcc My uncle who got me into dc told me I should look in to dcc so I did just that. The directions say wire A goes to Ac/Dc/DCC but with the power cab There is not a wire to put it there and wire B goes from the actual bridge if any one can help me let me know, Thanks!
Are you asking about the DCC system and not about the turntable? You have mentioned both, so it's a little confusing.
Every DCC system will have two power inputs, even if it's via a plug of some kind, and they'll have two rail-powering output terminals. A wire from one output goes to one rail, and the other output goes to the other rail. I'm talking about the rest of the layout tracks.
The turntable must have its own bus setup for getting DCC to the rails on the bridge, but it also has a drive mechanism that might need its own power source. The only experience I have is with the 'built-up, indexed' turntables that Walthers issued in 2006. They have since gone to DCC, but the general principle should be largely the same. If the drive mechanism for turning the bridge is meant to be DCC powered, then there should be a connector for that, possibly built into a larger main connector.
Are there no instructions for either item, the turntable and your new NCE system?
Remember that the bridge rails must get the same DCC signal and power that goes to the rest of the layout or there'll be a conflict and your locomotives won't work. If there is a connector to the turntable, then the other end must be connected to the DCC rails nearby, or to a power bus that feeds the rest of the layout's tracks. You don't need to place bared and tinned wire ends into the NCE command station, although nothing is inherently wrong with that setup if you do.
The directions from the current 90' turntable show this picture,
Wires A&B are track power. You connect those to you track bus, assuming you have a track bus. DCC likes feeders every 3-6' so if you don't have a bus you should.
C&D supply the turntable motor. You can power that off your old DC power pack or buy a separate wall wart.
Henry
COB Potomac & Northern
Shenandoah Valley
Thank you so much I have been trying to figure this out for almost a month!
There is actually an article about wiring a Walthers turntable for DCC in the February, 2023 Model Railroader.
-Kevin
Living the dream.
Is this the Walthers 90' Built up Turntable?
Lynn
Present Layout progress
http://cs.trains.com/mrr/f/11/p/290127/3372174.aspx#3372174