The ECP Inter-Car Cable and Lanyard is used to connect the 230VDC Trainline between ECP wagons and locomotives. The cable meets or exceeds the environmental specifications defined in AAR S-4210. In addition to S-4210, the connector design has improved sealing of the trainline electrical connections. This connector performs electrically to depths of 0.7 m of water submersion. This inter-car cable uses a twist action to mate and unmate the trainline connection between wagons. This is more ergonomic and a safer connecting method. When in operation, the cable and lanyard lengths are specified to pull apart prior to the brake pipe separating to initiate an ECP Emergency.