Garmin GMI 20 Marine Instrument Installation Instructions - Page 3
Specifications
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Wire Color Wire Function Brown Rx/A (+) Green Rx/B (-) NMEA 0183 Connection Diagrams This diagram is an example of a connection to a standard NMEA 0183 device with two Tx wires. Item Description Marine instrument with a NMEA data cable (not included) À 12 Vdc power source Á NMEA 0183-compliant device  Item Garmin Wire Function N/A Ê N/A Ë Rx/A (+) Ì Rx/B (-) Í Garmin Wire Color N/A N/A Brown Green NMEA 0183 Device Wire Function Power Data ground Tx/A (+) Tx/B (-) This diagram is an example of a connection to a standard NMEA 0183 device with one Tx wire. Item Description Marine instrument with a NMEA data cable (not included) À NMEA 2000 network (must connect to the same ground as the Á NMEA data cable) 12 Vdc power source  NMEA 0183-compliant device à Item Garmin Wire Function N/A Ê N/A Ë Rx/B (-) Ì Rx/A (+) Í Garmin Wire Color N/A N/A Green Brown NMEA 0183 Device Wire Function Power Power ground Data ground Tx This diagram is an example of a connection to a Garmin HVS GPS antenna. Item Description Marine instrument with a NMEA data cable (not included) À 12 Vdc power source Á Garmin HVS GPS antenna  Item Marine Instrument Wire Color N/A Black Yellow Blue White Brown Green Antenna Wire Color Red Black Orange White White/orange Gray White/red Specifications Specification Dimensions without sun cover (H×W×D) Dimensions with sun cover (H×W×D) Weight without sun cover Weight with sun cover Temperature range Compass-safe distance Case material Power usage Unit max. voltage NMEA 2000 input voltage NMEA 2000 load equivalency number (LEN) Measurement 110 x 115 x 30 mm (4. 33 x 4. 53 x 1. 18 in) 115 x 120 x 35. 5 mm (4. 53 x 4. 72 x 1. 40 in) 247 g (8. 71 oz. ) 283 g (9. 98 oz. ) From 5° to 158°F (from -15° to 70°C) 209 mm (8. 25 in. ) Polycarbonate, waterproof to IEC 60529 IPX7 standards 2. 5 W max 32 Vdc 9-16 Vdc 6 (300 mA at 9 Vdc) NMEA 2000 PGN Information Type PGN Description Transmit and receive 059392 ISO acknowledgment 059904 ISO request 060928 ISO address claim 126208 NMEA: Command, request, and acknowledge group function 126464 Transmit PGN list group function 126996 Product information Receive 126992 System time 127245 Rudder 127250 Vessel heading 127488 Engine parameters: Rapid update 127489 Engine parameters: Dynamic 127493 Transmission parameters: Dynamic 127498 Engine parameters: Static 127505 Fluid level 127508 Battery status 128259 Speed: Water referenced 128267 Water depth 129025 Position: Rapid update 129026 COG and SOG: Rapid update 129029 GNSS position data 129044 Datum 129283 Cross track error 129284 Navigation data 129285 Navigation route and waypoint info 129539 GNSS dilution of precision (DOP) 129540 GNSS satellites in view 130306 Wind data 130310 Environmental parameters 130311 Environmental parameters 130312 Temperature 3