2014 JMRI Alain Le Marchand 1 2014-08-18 ALM Initial creation Bi-Directional Communications (Railcom) Communications Bi-directionelles (Railcom) Bidirektionale Kommunication (Railcom) Bi-Directional Communications (Railcom) Provision - not supported Bi-Directional Communications (Railcom) (alt) Communications Bi-directionelles (Railcom) (alt) Bidirektionale Kommunication (Railcom) (alt) Bi-Directional Communications (Railcom) (alt) Provision - not supported