Originally Posted by
_kurt
To be even more specific, customs and international baggage claim are on the ground floor. The ATS (train) is on a sort of mezzanine level between arrivals and departures. The sign will say something like "Transport to: Connecting Flights" or "Airport Transit to ① ② ③"
Thx for the details, knowing what to look for and indeed going up a level thx to your clear instructions was such a big help. Thank you !