Can the turntable be wired using the bus for the layout? I don't have a power booster. My layout is small (5' X 16') and I only run, at most, two locomotives. Would one bus wire connect to terminals 1 & 4 and the other to 2 & 3?
You can use the bus if the manual says you can. In my case, the first series of indexed built-up turntables issued by Walthers in 2006, it needed its own power supply providing between 12 and 19 volts, if I recall, and no more than 0.5 amp. It could be either DC or AC. If your manual says to use such a power supply, I would not use the bus. It just uses more of the juice intended for the locomotives.
That said, if it is a DCC turntable, and not just a built-up indexed one as I have, shouldn't you be able to control it with DCC via your throttle? If you can assign an address to the TT, then it seems to me the bus is the way it should be fed. or with something that gets the DCC packets to the decoder running the bridge.
Crandell
Assuming the DCC turntable, the answer is yes.
Dante