US Railroads use EOT/HOT devices to monitor status of the last car in a train.
Brake pressure, movement, and battery status are shown on an HOT display in the cab.
These devices operate on UHF frequencies EOT 457.9375Mhz, HOT 452.9375Mhz.
HOT/EOT are paired by a unique ID when a train is assembled.
Table shows data from HOT/EOT devices.Norfolk Southern Piedmont Division MP 435-438
Date Time ID DEV BP/CMD
BP=EOT brake pressure. SRQ=HOT status request. CMD TYP=NML normal/EMR emergency.
Data refreshed periodically.
Not affiliated with any entity. This page for hobby purposes only.All logos property of their respective owners.
Copyright 2010-2026 Pigwerks. All rights reserved.
