Lowrance 5200c 操作ガイド

 

17 

The diagram above has a double T connector with two 120-ohm (one 

male and one female) terminators — one at each end of the connector. 

It is easy to expand this network by removing a terminator from one 

end of the double T connector, then inserting a new T connector or ex-

tension cable between the double T connector and terminator. Remem-

ber: The simplest NMEA 2000 network is a display unit with the LGC-

3000, one double-T connector and two 120 ohm terminators. 

NMEA is a standard communications format for marine electronic 

equipment. For example, an autopilot can connect to the NMEA inter-

face on the GlobalMap and receive positioning information. The 

GlobalMap can exchange information with any device that transmits or 

receives NMEA 0183 data. See the following diagram for general wir-

ing connections. Read your other product’s owner’s manual for more 

wiring information. 
NMEA Wiring 
(Data cable) 
To exchange NMEA 0183, the GlobalMap has one NMEA 0183 version 

2.0 communication port. Com port one (Com-1) can be used to receive 

NMEA format GPS data. The com port can also transmit NMEA format 

GPS data to another device.  
The four wires for the com port are combined with the Power Supply 

cable and NMEA-2000 Power cable to form the power/data cable 

(shown earlier). Com-1 uses the yellow wire to transmit, the orange 

wire to receive and the shield wire for signal ground. Your unit does 

not use the blue wire.