Introduction
The End of Train Telemetry System (EOTT) is a train integrity monitoring system that uses RF communication between the Head of Train (HOT) device and the End of Train (EOT) device. It ensures real-time monitoring of train status, enabling emergency braking, location broadcasting, and train completeness verification.
System Overview
EOTT continuously monitors the connection between the locomotive and the last wagon, helping detect train parting or derailment. In case of an emergency, the EOT device can initiate an emergency brake application from the rearmost wagon. The HOT device, controlled by the locomotive crew, can also manually trigger an emergency event when needed.
Additionally, the system can broadcast the location of the EOT device to other EOTT-equipped trains in emergencies like train parting, derailment, or crew commands. It also ensures train completeness by confirming the passage of all wagons over a specific location and alerts the driver if brake pipe (BP) pressure in the last vehicle exceeds specified limits.
Salient Features
| Feature | Description |
| Train Integrity Monitoring | Uses RF communication between HOT and EOT devices |
| Emergency Braking System | Initiates an emergency brake from the rearmost wagon in case of train parting |
| Manual Emergency Activation | Locomotive crew can trigger an emergency event via HOT device |
| Location Broadcasting | Sends EOT device location to other EOTT-equipped trains during emergencies |
| Train Completeness Verification | Confirms complete passage of train at desired locations |
| Brake Pipe Pressure Monitoring | Alerts driver if BP pressure in the last vehicle moves outside set limits |
Technical specification
| Category | Specifications |
| Communication | RF communication between HOT and EOT devices |
| Emergency Brake Activation | Automatic via EOT device / Manual via HOT device |
| Alerts & Indications | Location broadcasting, BP pressure monitoring, train completeness verification |
| Emergency Event Triggers | Train parting, derailment, manual activation by locomotive crew |
