SuperStreets/EasyStreets and DCS question

You would have to wire the TIU to the track in passive mode if I'm understanding you?

Simply take the output of Fixed #1 and attach it to the track. Don't connect any input to the TIU channels. You may need to attach a choke to get strongest signal.

You should power the TIU with the Aux input I'm thinking. It may power backwards from the track, if using fixed #1, I forget??

This is from Cappilot

Joe,

I just got around to studying your post.  Looking at the provided diagrams and your comment re passive mode it appears  to me the middle diagram is the one to use.  If I am correct,  it looks as if all I need to do is provide jumper wires from the trolley track to TIU terminal 3.  I hope that is correct, for it will be easy to do.

I recently converted my trolley loop to a streets loop.  I used O27 and Gargraves track (with foam board outside the rails and N scale roadbed between the rails) for the streets since one of my trolleys won’t do 21” diameter “Streets” curves.  I can also use it for street running with a few of my PS3 switchers.  I installed a DPDT switch so that I can run either streets vehicles and conventional trolleys with one of my ZW throttles or I can run the PS3 switchers.  Run common and positive wires from the two center posts of the DPDT switch to the track.  Run common and positive from the TIU to two posts on one end of the DPDT switch and run common and positive from the ZW to the two posts on the other end of the DPDT switch.

It's been 10 years or so since I installed DCS PS2.  I do not remember changing any TIU terminals from variable to fixed or vice versa.  All 4 terminals are being used.  Thus, I am now hesitant to attach additional track wire to the TIU for fear of frying the circuit board and/or two AUX boxes attached to it.  An easy but expensive way to solve the problem would be to install a new PS3 system strictly to operate the trolley.  But that would create a new problem:  my command control board real estate is maxed out.  As it is, the TIU and the two AUX boxes are stacked on top of each other.  Not sure if another TIU could safely be stacked on top.  In any case, appreciate your post.

Maybe I didn’t understand the question.  Do you want to operate your conventional streets vehicles and your PS3 trolley at the same time?  If not, if it’s an either-or proposition, then the DPDT switch solution is simple and does not take up much room.  I’ve got mine on a variable channel that is set to fixed.