Pic of track 4 to bridge.
Tried DCS to see if the Passive TIU connection for tracks 1 and 2 works. Initially had some problems. Tried running my Red Arrow Electro Liner. Even after charging, it didn't respond to either DCS or conventional. Then tried a PRR ten wheeler that Dennis had with no response. Since neither of these engines responded in even conventional, the batteries may not have been charged enough or need replacement. Eventually tried Dennis' EDM diesel, and had success. Track 1 and 2 worked well. However, did not take any signal readings. Used the cross-over to run on track 3 and had no problems. Was a little concerned that the TIUs were not in Super TIU mode. No problem. Except, when the engine got up to the bridge and was stopped for a pic, it stalled. Had to get out the ancient creaky crawler with the five-fingered crane to retrieve the engine. Tried track 4 and had no problem. From a DCS standpoint, looks like we're good to go on all tracks. So we're able to run any type of train on our layout.