Lowrance lms-522c igps 操作ガイド

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Use this method if you are only powering your display unit and are not 

The method in diagram B is also used when your display unit is con-
nected to a NMEA 2000 network that is already connected to power. 

(Never connect multiple power sources to a NMEA 2000 network.) 

A NMEA 2000 bus must be connected to a power source to operate. 

NMEA 2000 devices, including GPS modules, draw their power from 

the network bus. 
If you have a pre-existing NMEA 2000 network installation, it may al-

ready be connected to another power source. If you are not sure about a 
network's power status, consult the boat manufacturer or dealer. If your 

NMEA 2000 bus is already powered, you can ignore the NMEA 2000 

Power cable and use the method shown in Power Diagram B above. 

Never attach two power sources to a single NMEA 2000 bus. 
If you do need to power your NMEA 2000 bus, attach the NMEA 2000 

Power cable to an accessory switch as indicated in power diagram A on 

page 32. The NMEA 2000 Power cable's red wire should be attached 

(with provided 3-amp fuse) to the positive (+) terminal. The NMEA 

2000 Power cable's black and shield wires should both be attached to 

the negative (–) terminal.