Your Power Pax must be radically different than the one I have. Mine came with an 18 Volt DC wall wart power supply.
How can you power it from your track bus? When you enter “Program” mode the track bus is turned off.
Even if it is not turned off, I don’t think the Power Pax will function if you’re powering it from the DCC track bus, which is going to be a high frequency square wave AC signal.
Your Power Pax may not even be functioning if you have it connected that way.
I didn’t choose my words very carefully.
The Power Pax is connected one side to the two wires leading from my command station to the programming track and on the other side the wires connect to the programming track. As you say, the Power Pax comes with a wall wart power supply. Sorry about that. Should have gone down and looked at my layout before I spoke.
But the point that I was trying to clarify was how I could inadvertently damage the Power Pax unit as you mentioned in an earlier reply. Since the Power Pax is wired per instructions from the manufacturer and my programming track is nothing more than a 3 foot section of flex track completely separated from my DCC-powered mainline, I assume that I do not need to take any further precautions. Correct?
It works all right because since I installed it, I can now effectively program a BLI sound equipped decoder whereas I could not do so prior to installing the Power Pax.
Rich
Keep in mind the main track shuts off when programmign with NCE systems - it does no such thing with Digitrax, you can program on the program track AND continue to run trains. It’s one or the other ONLY with a DB150 which does not have a seperate program track output.
–Randy