Barry,
i am electronics challenged but i will try and ask this correctly... if gunrunner john or myself uses a separate tiu we have in passive mode and use the DCS remote commander when power is applied to the yard tracks after rest of layout has been powered up that the tiu in passive mode and DCSRC is used then the engines will remain silent or did I miss something?
or do you mean wiring power to each yard track from an existing tiu and then using the DCS remote commander it the remote commander supplies the watchdog signal and engines will remain silent?
now how does this RC thing send watchdog signal?