A、VITAL B、IMPORTANT C、ROUTINE D、URGENT
A、*-遙控啟動;S-定時器啟動,IOC為576;F-定時器啟動,IOC為288. B、*-定時器啟動,IOC隨意;S-定時器啟動,IOC為576;F-定時器啟動,IOC為288. C、*-遙控啟動;S-定時器啟動,IOC為288;F-定時器啟動,IOC為576. D、*-定時器啟動;S-遙控啟動,IOC為576;F-遙控啟動,IOC為288.
A、VITAL B、MAYDAY C、IMPORTANT D、DISTRESS