- 5 Nov 2017
Tony, now that is a neat solution for a work around, may even cross over from the Dark Side of DCC to have a dangle at this battery power lark!Yes, that can happen if the battery supply is over 12 volts.
The # SSI-12v5 after market Opto coupler device I used to make for Sierra sound pcb's was designed by Sierra and permitted up to 12 volts to be fed into the Sierra pcb to replace the 6 volt battery. PDF instructions The 12 volts was provided by a proper 12 v regulator.
+ 12v on terminal # 4 and - on terminal # 2.
If you used only 6 volts you could not get a Sierra diesel sound to ramp up to notch 8.