Is It okay to Plug Lionel 135watt Brick directly into TIU????

That's what I did. I used the adaptors as well so I didn't have to cut the plugs off the ends of the PH135 cables. I didn't use a Powermaster. I see a nice steady 18V on the tracks. Arguably the PH180 has better breakers, but I got a got a great deal on these. 

I would suggest checking the voltage again with a load. Maybe yours are different, but I have never seen 23 volts from either of mine.

That's a great setup you have! What did you use to customize it?

The painted steel subpanel is from Hoffman. Wire trough is Panduit. Terminal blocks are MTH. All the rest are MTH (1 TIU / 3 AIU), and Lionel (TMCC Command Base and PH135s). Not shown is a MRC Dual that powers the other two TIU channels. Other than that, just a bunch of drilled and tapped 10-32 holes to mount everything.

Gilly@N&W posted:

That's what I did. I used the adaptors as well so I didn't have to cut the plugs off the ends of the PH135 cables. I didn't use a Powermaster. I see a nice steady 18V on the tracks. Arguably the PH180 has better breakers, but I got a got a great deal on these. 

I would suggest checking the voltage again with a load. Maybe yours are different, but I have never seen 23 volts from either of mine.

Thanks Gilly,I was only running the engine&tender when it said 23 volts.

I bet a passenger train with incandescent bullbs will take care of those "extra" amps right away!!!!Just wanted to be sure before Ii start runnin the wheels off the engine!!!-Thanks and Happy New Year-Kenny Baughman

Sorry for the late response Gilly. It's been a rough January. Much Appreciated for getting back to me!

I'd be tempted to add some faster circuit protection for the 135W brick.

what type of banana plugs did you use - it looks like only one wire is going into the plugs on the input and output sides of the TIU - is there a more detailed description of the plugs/adapters- thanks 

ted