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14 January 2021, SmartScanIS User’s Guide for Union Pacific, EUD-2016026-00 Rev.2
First-Hotbox West-Rail Axle-2-5
Multiple-Hotbox High-Load and Wide-Load Detected From-Axle-2-8 To-End-of-Train
Total Axles 1-0-0
Train Speed 4-5-m-p-h
Detector Out
When Dragging Equipment, High Load, or Wide Load detector outputs are active as a train
enters the site, “Detector Malfunction” messages appear in the post-train announcements,
preceding any announcements for alarms associated with an axle. A separate message
appears for each active alarm type. If both Wide-Load outputs are active as a train enters a
site, only one “Wide-Load Detector Malfunction” message is announced.
For example at a single-track site with the Dragging-Equipment detector active as the train
arrives, the announcement is like this.
U-P Detector
Milepost 3-2-1 point 4
Dragging Equipment Detector Malfunction
U-P Detector
Milepost 3-2-1 point 4
Dragging Equipment Detector Malfunction
Total Axles 1-0-0
Train Speed 4-5-m-p-h
Detector Out
At a single-track site with the High-Load and one or both Wide-Load detectors active as the
train arrives, the announcement is like this.
U-P Detector
Milepost 3-2-1 point 4
High-Load Detector Malfunction
Wide-Load Detector Malfunction
U-P Detector
Milepost 3-2-1 point 4
High-Load Detector Malfunction
Wide-Load Detector Malfunction
Total Axles 1-0-0
Train Speed 4-5-m-p-h
Detector Out
At a single-track site having three Hotbox alarms, and with the Dragging-Equipment, High-
Load, and one or both Wide-Load detectors active as the train arrives, the announcement is
like this.
U-P Detector
Milepost 3-2-1 point 4
Dragging Equipment Detector Malfunction
High-Load Detector Malfunction
Wide-Load Detector Malfunction
First-Hotbox East-Rail Axle-1-2
Summary of Contents for SmartScanIS
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