Am 15.11.2018 um 14:16 schrieb KEMPKENS, Klaus [DE]:
Obviously at least some EW II are compatible with Alvra control lineAll EW II are. And alos all EW IV, the dining cars and most Bernina coaches. But it's not only the control line 2012, it's also the air brake line that is needed. And there are still a few coaches around that have the control line 2012 but not the air brake line.
Coaches that have the control line 2012 AND the air brake line do no longer carry a colour triangle or diamond at the edge. Coaches that still have a diamond can't be used within an Alvra consist, only BEHIND an Alvra trainset:
white diamond: control line 2012 is there but not the air brake line
yellow diamond: only 18-pole control line and without indirect emergency brake
orange diamond: only 13-pole control line and without indirect emergency brake and without door position transmission