My layout has 3 TIU's all in super mode. Everything works fine.
#1 TIU using fixed voltage ports for main lines
#2 TIU using fixed voltage ports for each main line yard area
#3 TIU using fixed voltage ports for 2 elevated subways
If I add Legacy system, add the legacy signal wire to all negative terminal boards for all TIU's, legacy cable hooked up to the main line TIU will the legacy signal be repeated through all three TIU's? Or does the legacy 232 plug need to be split to all TIU's? OR ??