Abstract: A device for communicating information from a controller for a rooftop air handling unit to a portable electronic device includes a wire terminal for wiring to the controller and for receiving a signal including information from the controller. The device further includes a transceiver configured to form a direct wireless communications link between the transceiver and portable electronic device. The device yet further includes a circuit coupled to the wire terminal and the transceiver. The circuit is configured to extract the information from the signal. The circuit is further configured to format the information into a format in which the information can be presented to a user by the portable electronic device and to provide the translated information from the transceiver to the portable electronic device.

Abstract: A device for communicating information from a controller for a rooftop air handling unit to a portable electronic device includes a wire terminal for wiring to the controller and for receiving a signal comprising information from the controller. The device further includes a transceiver configured to wirelessly transmit the information to the portable electronic device. The device yet further includes a circuit coupled to the wire terminal and the transceiver. The circuit is configured to extract the information from the signal. The circuit is further configured to provide the information from the wire terminal to the transceiver.

Abstract: A device for communicating information from a controller for a rooftop air handling unit to a portable electronic device includes a wire terminal for wiring to the controller and for receiving a signal comprising information from the controller. The device further includes a transceiver configured to wirelessly transmit the information to the portable electronic device. The device yet further includes a circuit coupled to the wire terminal and the transceiver. The circuit is configured to extract the information from the signal. The circuit is further configured to provide the information from the wire terminal to the transceiver.

Abstract: A method of changing between two operator stations in a cab of a locomotive for controlling the brakes of the locomotive and of a train of railway cars connected to the locomotive. The stations each have at least one brake handle and an associated selector switch, with each of the switches being electrically connected to a brake control computer. The method includes stopping the train if the train is in motion and placing the brake valve handles of the stations in a position to apply the brakes at full service. One of the operator stations is selected as an active station for braking the train while the other station is selected to be inactive. Signals are directed from the selector switches at the operator stations to the computer, the signals indicating which of the two stations is active and inactive. The computer is provided with the software that accepts a valid transition to the station selected by the operator as the active station.