Methods and systems for controlling locomotives

A method for controlling a locomotive, comprising:

• receiving power and signals or data from one or more first locomotive units via a controller into an Ethernet module through an Ethernet switch, the one or more first locomotive units including at least one of a speed indicator, a fuel tank monitor, or a cab signal unit;
• separating the received power and signals or data;
• sending the separated signals to a microcontroller of the Ethernet module;
• validating the signals or data;
• converting, by the microcontroller of the Ethernet module, the signals or data to output signals or data according to one or more communication protocols;
• transmitting the output signals or data to one or more second locomotive units, the one or more second locomotive units including an electronic air brake;
• and
• controlling the electronic air brake based on the received signals or data using the transmitted output signals or data.

A method for controlling a locomotive, comprising:

• receiving power and signals or data from one or more first locomotive units via a controller into a plurality of Ethernet modules through an Ethernet switch, the one or more first locomotive units including at least one of a speed indicator, a fuel tank monitor, a cab signal unit, a head-of-train device, or an end-of-train device;
• separating the received power and signals or data;
• sending the separated signals to a microcontroller of the Ethernet module;
• converting, by the microcontroller of each Ethernet module, the signals or data to output signals or data according to one or more communication protocols;
• and
• transmitting the output signals or data to a plurality of second locomotive units, the plurality of second locomotive units including an electronic air brake;
• and
• controlling the electronic air brake using the received signals or data and the transmitted output signals or data.