R5 SUPREME AIS SystemTROUBLESHOOTING7000 118-300, A3 Page 71alarm can be inactive up to 30 seconds (during which the internal GNSS is used) before thealarm is activated.8.3.14 AIS: No Sensor Position In Use (ID 026)This alarm is active if the R5 SUPREME Transponder does not have a valid position(latitude/longitude) from any sensor.8.3.15 AIS: No Valid SOG Information (ID 029) / No Valid COG Information (ID030)These alarms are active if the R5 SUPREME Transponder does not have a valid SOG (SpeedOver Ground) or a valid COG (Course Over Ground) from any sensor. The SOG and COG isbased on the speed log (if external GNSS is used and a valid heading is available) or theGNSS currently in use.8.3.16 AIS: Heading Lost/Invalid (ID 032)This alarm is generated if either the heading information is lost/invalid (from external sensors)or if the heading is undefined.8.3.17 AIS: No Valid ROT Information (ID 035)This alarm is active if ROT (Rate Of Turn) is undefined or if no valid ROT information isavailable from external sensor or internal calculations.8.3.18 AIS: CDU Lost Connection To TransponderThis alarm is active if the R5 SUPREME CDU has lost connection with the R5 SUPREMETransponder. If this alarm occurs, check the Ethernet connection and the network settings.8.4 Troubleshooting via the CDUThere is a lot of information and data accessible via the CDU that can be useful fortroubleshooting, and that can help finding a presumed problem. The following items are just a fewexamples of what to look at.8.4.1 Transmitted Own Ship Data ViewWhen the transponder transmits data on the VDL, it also simultaneously outputs this data onall the serial ports. This information is displayed in the Own Ship Data view.Figure 40 – Transmitted Own Ship Data