Hi, I have bought a set of ROCO left and right hand switches off ebay and was wondering how in the world you wire these things. They are just plain old mechanical types if that helps any. A diagram would be great or some links to a description, i did a search but coulden’t find anything. --Ben
Well, this is the wrong place to ask. I would post this in the Model Railroader forum. That is where you will get responces.
Ben,
Roco has three wires going to the switch machine. Red (LH) Black (Centre) Green (RH)
Black is the common for the coils, Red is reverse, Green is straight.
Hope that helps.
ER
PS Info from ROCO 95/97 N Catalogue
unless one is colourblind, then all bets are off…
A former pastor is totally colorblind. He tried studying electronics, but resistor color codes were completely beyond him.
He wanted to match a paint, so he went to Wal-Mart and had the lady give him some green paint chips. Then he had his 3-year-old, who is not above a prank, show him which matched. We never told him he painted his ping-pong table pink.
Here she is in my shop running trains. She loves trains and any time they were headed for town, she’d ask to go to Tom’s.

Hi again, Our techie mentioned that it is unlikely that someone who has “colourclassic” for a user name is colourblind.
Regards ER
It just go’s to show how we all have been into trains of all different scales since time began. And we all have some gray matter that likes to be awakened without reguard as to the right or worng forum. As a model railroader for over 57 years ( five years old - first O-27 set ) and having had N,HO,S,O-27 and now using G gauge track for 1:29, 1:24, 1:22.5, 1:20.3 And thanks to one of my son’s 1- 1:32 speeder. If a person has question and you have an ansure give it, then inform them of the correct forum.
Some of us do more shopping than others and probably remember being sent to a different department in a large store. Only to find out that the sales staff in that department was new on the job and had no idea what the item in question did, looked like or how to make it work. All this because the item dated back to “pre-historic times” ![]()
Does that sound familiar? ![]()
Regards
ER
PS I still have my Marx wind-up train set from the fifties, brought back to Switzerland by a relative.