I was given an MTH Allegheny 2-6-6-6, 20-3017-1 engine to check out. I was told it was upgraded. Well it appears it was upgraded for Lionel operation. I'm not sure what I have so I opened the tender and took a couple of pictures of the electronics. I haven't opened up the engine and would prefer not to in order to figure out what all of this is.
Wondering if anyone can tell me if this is an ERR upgrade of some type? If so, how do you operate this engine? I do see a switch on bottom of engine that may be a Run/Program switch but it is not labeled. Note I do have a Legacy control system and a few Legacy engines.