Air Brakes and Train Handling Rules - Alaska Railroad
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Air Brakes and Train Handling Rules - Alaska Railroad

Air Brakes and Train Handling Rules - Alaska Railroad Air Brakes and Train Handling Rules - Alaska Railroad

akrr.com
12.07.2015 Views

68 EOT Telemetry DevicesTable 68-A lists the normal and alarm messages displayed by theEOT unit.EOT Unit Display MessagesDisplay Condition Remarks[1 A1] Power-upmessageWhen the EOT unit is first turnedon, the display shows this messagefor 1 second.• “1” is the unit’s model number.• “A1” is the unit’s softwareversion number.[ 123] Normal display The normal display shows the airpressure in psi using up to 3 digitson the right side of the display.[ 123W] Weak Battery Battery has about 8 hours left.[ 123F] Failing Battery Battery has only a few minutesleft.[ 123A] Battery Abort Battery voltage is so low that theEOT unit turned off before it couldsend a report.[ VSWR ] Antenna fault The EOT unit antenna is usingexcessive power. This message canappear if someone is holding theantenna during transmission.Table 68-A. EOT Unit Display Messages.June 1, 1996 ARRC Air Brakes and Train Handling Manual 68-21

68 EOT Telemetry Devices68.8 Digitair Locomotive Cab UnitThe locomotive cab unit (LCU) is a self-contained telemetry transmitter/receiverwith the displays and controls the engineer uses tomonitor the EOT unit.The LCU has the following functions, displays, and controls:• EOT unit identification• Pressure display (normal display)• Odometer function— Distance button— Calibration button• Motion display• Marker light displayNOTE: If the odometer function is not installed, the distanceand calibration buttons do not work.Calibration ButtonBattery Fail DisplayThumbwheel Display1 2 3 4 5DIGITAIRMARKER DISPLAY UNITCDDSLDistance ButtonWindow Display, DistanceMotion DisplayWindow Display, Brake Pipe PressureFigure 68-C. Locomotive Cab Unit (LCU).68-22 ARRC Air Brakes and Train Handling Manual June 1, 1996

68 EOT Telemetry Devices68.8 Digitair Locomotive Cab UnitThe locomotive cab unit (LCU) is a self-contained telemetry transmitter/receiverwith the displays <strong>and</strong> controls the engineer uses tomonitor the EOT unit.The LCU has the following functions, displays, <strong>and</strong> controls:• EOT unit identification• Pressure display (normal display)• Odometer function— Distance button— Calibration button• Motion display• Marker light displayNOTE: If the odometer function is not installed, the distance<strong>and</strong> calibration buttons do not work.Calibration ButtonBattery Fail DisplayThumbwheel Display1 2 3 4 5DIGITAIRMARKER DISPLAY UNITCDDSLDistance ButtonWindow Display, DistanceMotion DisplayWindow Display, Brake Pipe PressureFigure 68-C. Locomotive Cab Unit (LCU).68-22 ARRC <strong>Air</strong> <strong>Brakes</strong> <strong>and</strong> <strong>Train</strong> H<strong>and</strong>ling Manual June 1, 1996

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