Ideal power setup for TIU running A\C O Gauge and DC HO gauge?

Hi Folks,

For years I've been doing something monumentally stupid. I've been running my HO MTH engines off the A/C Z1000 power supply I use on my O gauge. Never knew it was an issue. Rayman straightened me out so I'm getting a D/C power supply for the HO trains.

My question is what is the ideal power setup through the TIU for A/C and D/C I know A/C will run on variable and not fixed and I've been running it on Fixed only but if I add D/C should I move the A/C to the variable and put the D/C power supply on Fixed 1?

Thanks!

This is my new layout I'm building for context. The HO is Kato track.

The O platform is 7x10 with 3 ovals one 42 one 54 and one 72.

The HO is basically dual tracks on roughly 4x8.

4/1/193:19 PM

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texmasterOGR Forum Member

I ended up calling MTH. They said the more powerful Power supply should be on Fixed 1 so the TIU draws power for that and the other power supply should go on Fixed 2

4/3/193:50 PM

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Lou1985OGR Forum Member

If it were me:

DC power supply through the TIU fixed channels for the HO trains, AC power supply through the variable channels for the O gauge trains, power the TIU with an auxiliary power supply through the AUX power input.

I power the TIU on my layout through the AUX power supply port with a 12 volt, 2 AMP power supply. That way if Fixed 1 has no power trains powered by Fixed 2 will continue to run (I have main lines connected to Fixed 1 & 2 on my layout).

4/3/195:56 PM

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texmasterOGR Forum Member

Lou1985 posted:
If it were me:
DC power supply through the TIU fixed channels for the HO trains, AC power supply through the variable channels for the O gauge trains, power the TIU with an auxiliary power supply through the AUX power input.
I power the TIU on my layout through the AUX power supply port with a 12 volt, 2 AMP power supply. That way if Fixed 1 has no power trains powered by Fixed 2 will continue to run (I have main lines connected to Fixed 1 & 2 on my layout).

If your layout is huge that makes sense but mine is pretty small so I can get away with letting the z1000 power supply run the TIU and 3 O guage trains.

4/4/198:55 AM

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Lou1985OGR Forum Member

texmaster posted:
Lou1985 posted:
If it were me:
DC power supply through the TIU fixed channels for the HO trains, AC power supply through the variable channels for the O gauge trains, power the TIU with an auxiliary power supply through the AUX power input.
I power the TIU on my layout through the AUX power supply port with a 12 volt, 2 AMP power supply. That way if Fixed 1 has no power trains powered by Fixed 2 will continue to run (I have main lines connected to Fixed 1 & 2 on my layout).
If your layout is huge that makes sense but mine is pretty small so I can get away with letting the z1000 power supply run the TIU and 3 O guage trains.

If small enough you could get away with that. Personally I would still power the TIU through the auxiliary power port. That way if a O gauge train trips the breaker on your Z1000 the HO trains will continue to run.

4/4/191:05 PM

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Ideal power setup for TIU running A\C O Gauge and DC HO gauge?

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