There are many versions of Miconic...
Miconic V I presume is what you're asking about. Kind of a Haughton looking contraption with one terminal that talks to any one of the 8 cars in a group. Correct? 80's to 90's installation.

OR...

Miconic A Scnindler? or some other version of Miconic.

It Don't mean a thing if it aint got that swing.

Cool, Free, Johnny Smith courtesy of NPR..HERE
http://www.npr.org/ramfiles/asc/asc25.smith.asx