23
Conventional transformer operations
Activating the CrewTalk dialog and TowerCom announcements
I
n the conventional environment, CrewTalk dialog and TowerCom announcements are triggered by
short whistle blasts and vary with the state of the locomotive.
• If the locomotive has been stopped for less than 15 seconds, a short whistle blast triggers a
“please standby” dialog.
• If the locomotive has been stopped for longer than 15 seconds, a short whistle blast triggers
a “cleared outbound” dialog.
• If the locomotive has started moving within the last seven seconds, a short whistle blast
will trigger a "train is underway" dialog.
• If the locomotive has been moving for more than seven seconds, a short whistle blast will
trigger a "are we clear?" dialog.