I put off getting a dcs system and am not sure how best to power it without blowing it up.
I have two z4000s . That means I have four outputs and inputs for the tiu. I’ve seen others get a z1000 just to always have power to the tiu. Can you do both, have fixed one powered and the TIU have its own power supply?
Also I’ve been wondering if I should try and get a second tiu ( while I can) ? Any thoughts
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Of course, that's the best way to power the TIU as it insures that the TIU electronics are powered even if you lose the FIXED #1 input voltage.
You also might want to re-think powering the TIU externally with a fairly expensive Z-1000.
An inexpensive wall wart providing 12-22 volts (AC or DC) at 1.5 amps or greater with a compatible barrel connector plugged into the TIU's Aux. Power Port should work fine.
However, if you happen to power the fixed inputs with DC (perfectly permissible), a DC supply on the aux input apparently can be a problem. At least, that's what Barry used to say, I've never personally tried it.
I have two TIU's, 4 Z1000 Bricks, 2 Z500 Bricks and 2 Z4000's. I power the first TIU with a Z500 and Power ALL four channels with the 2 Z4000's. The second TIU I power with a Z500 and power ALL Channels with Z1000 Bricks. NO Problems. I run TIU's in Super Mode and have all my AIU's daisy chained to one or the other TIU's. One TIU has 4 AIU's and the other has 2 AIU's. NEVER had a power problem regardless of how many engines are lashed together and how many lighted passenger cars are running on whatever loop. 4 loops on main layout side and 4 on secondary layout side which is basically my YARD side although it is bigger than the main layout.
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