DCS technical question...

How big is your basement?

I don't think you need 2 TI"U"s.  Each TIU has 4 output channels.  Since this sounds like just one long loop.  One Z, one TIU and one Remote.

You just need to wire the loop properly.

Even if you had more TIUs or Z-4000 you only have to have one remote.  G

John,

As long as the single Z4000 provides sufficient power for the layout, a single Z4000 with one receiver attached should work fine.

However, if you need a second Z4000, you will also need a second receiver for it, as well.

Also, it's "TIU". A TIA is something entirely different, and not so good!  .

GGG,

I have two TIU  on two separate Layout and found  that one Remote controlled and worked on both.

Good luck, John 

I have two TIU  on two separate Layout and found  that one Remote controlled and worked on both.

The OP is discussing using a Z4000 Remote Commander receiver with his Z4000, not how many DCS Remote's to use to control his TIUs.

BARRY,

I have one, Z-4000-Transformer connected to one  TIU  and one Hand control.

That's what I'm running on my Layout. I run six sets of trains on my Layout.

I'm not sure what your talking about here.

This is something new from MTH ?

Thanks, John

John,

The Z4000 has always had the capability to be controlled by either a separate hand held controller, the Z4000 Remote Commander hand held, or the DCS Remote

When using either of those remote controllers, the remote controller talks to a Z4000 Remote Commander receiver, which plugs into the Z4000 using a small, telephone-type jack that's seen by removing a black plug on the back of the Z4000.

Thsi allows "touchless" control of Z4000 transformers. In DCS, this is accomplished by creating Z4K Tracks. This is all discussed in great detail in The DCS Companion 3rd Edition.

You can see the product to which I'm referring by clicking here.

This and a whole lot more is all inMTH’s “The DCS Companion 3rd Edition", available for purchase from many fine OGR advertisers and forum sponsors, or as an eBook or a printed book at MTH's web store!

John,

   What Barry is describing works very very well and I have the Remote Commander Receivers on both my Z4K Transformers, they open up a lot of additional options for running lots of trains.  Barry's DCS O Gauge companion explains in detail just how to program for their usage, thru the TR function.  

PCRR/Dave

Yes...TIU...don't ask me what I was thinking.  :-)

You are awesome Barry!  Thank you.