TIU UPDATE

12-22V 1.5 amps  AC or DC will work.  I use a Radio Shack Wall Wart.

If this is a REV L TIU and you are using a USB Cable you do not need to power the TIU to just update it and the remote.  The USB cable provides power.   Also, if you have a small Transformer, you can just power FIX 1 normally for other TIU.  You do not have to use the AUX power input.   G

I don't have the USB version of the TIU. So I need another power source. 

MartyE posted:

12-22V 1.5 amps  AC or DC will work.  I use a Radio Shack Wall Wart.

Thanks. I will pick one up. 

From The DCS Companion 3rd Edition, page 96:

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. However, since this power supply is rated for only 1.0 amp, it should be used only to power a TIU to which AIUs are not connected.

This and a whole lot more is all in“The DCS Companion 3rd Edition", available for purchase  from many fine OGR advertisers and forum sponsors, or as an eBook.

If you have an old adapter lying around the house, 12-18 volts output, AC or DC, of 500 milliamp (1/2 amp) or more capacity, try that.  That's what I carry for upgrading TIUs at my house and at York.

For the 2 TIUs on my layout, each has the R-S 273-331 Barry describes.  One of the TIUs has 3 AIUs feeding off it, and I have had no problems.  BUT, I do not use any accessory terminals set to hold power on, so I do not have a lot of relay coil power being drawn.

Came across a 12v DC wall charger that I have in a drawer . Is this enough voltage to run TIU while I update it off the computer?  

What is its amp rating?

It doesn't say how many amps on it  just says 100 - 240 input volts and 12 volt DC output 50-60 hz. What is the minimum and maximum amps I need to have in order to run the TIU during the update?  

Try it and see if it works.  500 ma should suffice.

I have a Lionel power supply HKYF36-180175T-US.  It outputs 18v DC at 1750mA 31.5va.  It is from a Lionchief set.  It appears that this would work, correct?

Thanks

I used an older laptop power supply that outputs 19v DC @ 4.75 amps from a defunct computer. I stress older because the new style laptop charging ports do not mate to the TIU.

Trainman52 posted:

I have a Lionel power supply HKYF36-180175T-US.  It outputs 18v DC at 1750mA 31.5va.  It is from a Lionchief set.  It appears that this would work, correct?

Thanks

Yep, should work just fine.