144Chapter 12 SPECIFICATIONS12.6.3 AIS FUNCTION (STANDARD BUILT IN)1) DisplayNumber of targets Up to 50 targets (stores up to 1,000 ship static data)Target information Displays MMSI, call sign, ship name, COG, SOG,CPA, TCPA, direction, distance.Filters Distance only (initial setting value 20NM)Select target AvailableSelect a Dangerous ship targets No CPA/TCPA decision2) Operation Built-in3) Installation NMEA1~3 available12.6.4 TT FUNCTION (STANDARD BUILT IN)1) Acquisition MANUAL,AUTO (by guard zone)2) Tracking 10 targets (Automatic tracking)3) DisplayTracking data 1 ship (AIS or TT)Maximum tracking range 20NM (This varies depending on the range)Target information Displays items are true bearing, distance, true course,and true speed.Display of Vectors True/Relative4) Operation Built-in12.7 INPUT/ OUTPUT SIGNAL12.7.1 INPUT ENABLE SIGNAL(1) Navigation equipment IEC61162-1/2(※1)L/L: GGA>RMC>RMA>GNS>GLLSOG/COG: RMC>RMA>VTGLog speed: VBW>VHWHEADING: THS>HDT>HDG>HDMDEPTH: DPT>DBTWATER TEMP: MTWROT: ROT (Unsupported on display)RUDDER: RSA (Unsupported on display)AIS: VDM, VDO, ALRWIND: MWV>VWT, VWRWAYPOINT: RMB>BWC>BWR(2) Bearing signal JRC-NSK format (JLR-10/20/30)(by NMEA3 port)IEC61162-1/2(※1) 4800bps/38400bps: THS>HDT>HDG>HDM(3) Speed signal IEC61162 4800bps: VBW, VHW※1:IEC61162-2 Conformity is unnecessary.(Insulation is unnecessary. Input electrical tests are unnecessary.)