What is end of train telemetry?
The End of Train Telemetry (EoTT) equipment is used to establish communication between the locomotive driver and the last wagon of the train to ensure that the train is running with all coaches/wagons as a complete unit.
How does end of train device work?
EOT device functions advance Powered by an internal battery, the device sends a periodic signal to the locomotive indicating the brake pressure at the rear of the train, whether or not the last car of the train is moving, and in which direction.
What is the end of a train called?
Cabooses
A caboose is a manned North American railroad car coupled at the end of a freight train. Cabooses provide shelter for crew at the end of a train, who were formerly required in switching and shunting, keeping a lookout for load shifting, damage to equipment and cargo, and overheating axles.
What does eott mean?
EOTT — Eye of the Tiger. EOTT — End of Train Telemetry. EOTT — Eyes on the Throne. EOTT — Enron Oil Trading & Transportation. EOTT — End of Toll Trunking.
What is the name of the end of train device?
A typical “Wilma”, head-of-train (HOT) device (HTD), displaying the current brake line pressure on the rear end (top unit). End-of-train devices must be made to withstand all kinds of weather.
Where is the ETD sensor on a train?
Another important ETD job is the monitoring of the brake-pipe pressure. A sensor extends down from the ETD unit (which, depending on the design, can be mounted on the knuckle or the side of the coupler) and attaches to the end of the air hose.
How did the end of train device affect the railroad?
The DPS ETD reduced labor costs, as well as the costs of the purchase and upkeep of cabooses. The Brotherhood of Conductors, and Brotherhood of Railroad Brakemen were also greatly affected by ETD, as this electronic unit replaced two crewmen per train. The widespread use of ETDs has made the caboose nearly obsolete.
What’s the difference between smart and Dumb end of train devices?
A “dumb” ETD can be as simple as a red flag attached to the coupler on the last car of the train, whereas “smart” devices monitor functions such as brake line pressure and accidental separation of the train using a motion sensor, functions that were previously monitored by a crew in the caboose.
