Test Track W/TIU

Spence

Read your post, I have some questions

1) What transformer are you using to power the TIU?

2) What channel do you use for the main layout?

3) Are you powering the TIU on fixed 1, or the aux port?

4) Have you tried swapping the layout on to one of the channels that wont work?

5) Have you switched the variable track to fixed output?

Yeah, it sounds like you are powering your TIU through the fixed 1 port with the transformer. If you get a wallwart to power the TIU that should solve the problem.

1) MRC

2)Fixed 1

3) Fixed 1

4) No

5) Yes

Joe, what is a wallwart!!!

Nevermind; I googled it. AC adapter

Hope this helps... The tiu need a power supply to  turn on and function. there are 2 ways to turn it on..power to fixed 1 or an aux powewr supply. If you want to use fixed 2 or the var channels you hav e to get the tiu turned on first.

 

In Barry's book on page 92 it states power supply 1.5 amps, with voltage between 12-22. The only one I can find around here is 1.5 amps but only putting out 12 volts. Would this be enough voltage!!!!

Barry's book lies a bit.  Apparently, a 1A Radio Shack supply works fine.  I can't see why the one you have that meets the 12V specification won't work.

Thank you

Jon,

Barry's book lies a bit.  Apparently, a 1A Radio Shack supply works fine.

No, Jon, you are the one speaking untruthfully! Get your facts straight!

 

The DCS O Gauge Companion (both editions) clearly states that the RS power supply is adequate to power a TIU, even though the MTH spec requires1.5 amps. Page 93 of the 2nd edition states:

Another source of power for the TIU's Aux. Power port is the Radio Shack "#273-331 "Enercell™ Switchable 18/24VAC 1 AMP Power Adapter with #273-344 Enercell™ Adaptaplug™ M. It should be used on the 18 volt setting.

The discrepancy may be due to the TIU's power requirements being overstated slightly and the spec of the power supply being slightly understated.

 

This and a whole lot more is all in "The DCS O Gauge Companion 2nd Edition", now available for purchase as an eBook or a printed book from MTH's web store site! Click on the link below to go to MTH's web page for the book!

Perhaps if you hadn't stated this first it wouldn't be so confusing.

There are several sources of power that may be used to power the TIU through the Aux. Power port. In general,
any AC or DC power supply that provides 1.5 amp of power at a voltage between 12 and 22 volts and has
a suitable connector that fits the Aux. Power port will work.

Right after that statement, you change it to the 1A power supply.

Jon,

 

You realy should learn to read and comprehend. As I stated...

The discrepancy may be due to the TIU's power requirements being overstated slightly and the spec of the power supply being slightly understated.

Further, this power supply might be insufficient for a TIU with several AIUs attached. It may not be able to reliably operate properly when attempting to activate the last AIU on the string, particularly when using long cables between devices.

 

Sometimes, there are no simple answers...

Jon,

 

You realy should learn to read and comprehend. As I stated...

The discrepancy may be due to the TIU's power requirements being overstated slightly and the spec of the power supply being slightly understated.

Further, this power supply might be insufficient for a TIU with several AIUs attached. It may not be able to reliably operate properly when attempting to activate the last AIU on the string, particularly when using long cables between devices.

 

Sometimes, there are no simple answers...

Yep, I've been meaning to take that reading comprehension course, just haven't gotten to it.

 

Of course, if the RS 1A supply may not be sufficient under all circumstances, it probably would have been nice to mention that in the book, no?  Or is that more "reading comprehension" on my part and it's really there?

Jon,

 

No, it would not be appropriate for mention in the book because I don't know, for a fact, that it's a true statement. As I said it ...

might be insufficient for a TIU with several AIUs attached

Time for that reading comprehension course, perhaps?