Hornby Forum - DCC Track Wiring Home > Forum > Hornby DCC > DCC Track Wiring Add New Topic Add New Topic. SDCC Track Wiring < 1 (good enough for just basic model railway testing - plus the AC voltage range can be used for testing for the presence of DCC voltages @ about 14 to 15 volts). Fix or replace, it depends upon exactly what the fault is. Model Railway Digital Command Control (DCC) - Wiring a layout Wiring the Layout I mentioned earlier that the myth of ‘wiring for DCC’ is just that- a myth. However, as with any electric railway, there is wiring to be done, but because DCC controls the locomotives individually, there is no need to split the track into many sections in order to run multiple locos, making DCC layouts easier to wire than DC.
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