Lowrance lmf-400 用户手册

5 

If you do not want to use the buzzer or dash light wires, clip the bare 

ends off the wires, then cap them with wire nuts or electrical tape. 
To wire unit to the buzzer (piezo): 
1. Connect the LMF-400 yellow wire to the buzzer (piezo) ground wire.  
2. Attach the LMF-400 blue wire to the buzzer (piezo) positive wire. 
3. Select a buzzer location that is protected from the elements, but will 

still allow you to hear it. Use the adhesive back on the buzzer to mount 

the buzzer to a flat, clean surface. 
To wire unit to dash lights: 
1. Connect the LMF-400 black wire to the dash light ground wire.  
2. Now attach the LMF-400 white wire to the dash light positive wire. 
Connecting to a NMEA 2000 Network 
A network bus is an installed and operational network cable (backbone) 

running the length of your boat, already connected to a power supply 

and properly terminated. It provides network connection nodes at 

various locations around your boat.  
Compatibility 
You will easily be able to connect your unit to both red (DeviceNet) and 

blue connector networks, regardless of whether your unit has a blue or 

red connector network cable. Check the adapter cable segment in the 
Setup and Installation of NMEA 2000 Networks, General Information" 

that came packed with your unit. If you do not have that document, it 

can be downloaded free from the Lowrance web site.  

 

A network bus backbone consists of network cabling, terminators and T 

connectors. Network nodes are made by fitting T-shaped connectors into 

the backbone (using the sockets on the sides) and attaching any network 

device to the bottom of the T.