Patent ID: 8131411

Claim:
An interface system for interfacing a pneumatic train brake control system to a train of electrically controlled pneumatic (ECP) brake equipped cars, the interface system comprising: a controller monitoring pressure on a locomotive brake pipe port, controlling pressure on a train brake pipe port in response to the pressure on a locomotive brake pipe port, providing ECP commands on an ECP trainline via a train electrical terminal in response to the pressure on the locomotive brake pipe port, and providing electrical power on the ECP trainline via an train electrical trainline terminal from the locomotive electrical trainline terminal; a pair of brake pipe connectors; and a change over valve having first and second positions for reversing the connection of the brake pipe connectors to the locomotive and train brake pipe ports and having a third position for disconnecting the brake pipe connectors from the locomotive and train brake pipe ports and directly connecting the brake pipe connectors to each other wherein the change over valve includes four valve elements having actuators connected to each other and a handle of the change over valve by gears and belts.