smallspy
Senior Member
It won't be compatible with the older cars so there is no mix and match.
While they are still early renderings.....
All of the images shown by ONR thus far do show standard 27-pin MU and COMM plugs at the end of the loco. It is certainly possible to spec the trainsets with both Cat5 and 27-pin set-ups. Amtrak has spec'd their own sets like this.
Dan