Lowrance HDS-7 LIVE HDS Live Installation Manual - Page 24

Plan and install an NMEA 2000 network, Powering the network, Purpose

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Pin Purpose 5 NET-L Plan and install an NMEA 2000 network An NMEA 2000 network consists of a powered backbone from which drop cables connect to NMEA 2000 devices. The backbone needs to run within 6 m (20 ft) of the locations of all products to be connected, typically in a bow to stern layout. The following guidelines apply: • The total length of the backbone should not exceed 100 meters (328 ft) • A single drop cable has a maximum length of 6 meters (20 ft). The total length of all drop cables combined should not exceed 78 meters (256 ft) • The backbone needs to have a terminator at each end of the backbone. The terminator can be a terminator plug or a unit with built-in terminator A A B B C E A B C D A NMEA 2000 device B Drop-cable C Terminator D Power supply E Backbone Powering the network The network requires its own 12 V DC power supply, protected by a 3 amp fuse. For smaller systems: connect power at any location in the backbone. For larger systems: connect power at a central point in the backbone to balance the voltage drop of the network. Make the 24 Wiring | HDS Live Installation Manual

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Pin
Purpose
5
NET-L
Plan and install an NMEA 2000 network
An NMEA 2000 network consists of a powered backbone from
which drop cables connect to NMEA 2000 devices. The backbone
needs to run within 6 m (20 ft) of the locations of all products to be
connected, typically in a bow to stern layout.
The following guidelines apply:
•
The total length of the backbone should not exceed 100 meters
(328 ft)
•
A single drop cable has a maximum length of 6 meters (20 ft).
The total length of all drop cables combined should not exceed
78 meters (256 ft)
•
The backbone needs to have a terminator at each end of the
backbone. The terminator can be a terminator plug or a unit with
built-in terminator
A
C
C
D
B
E
A
B
A
B
A
NMEA 2000 device
B
Drop-cable
C
Terminator
D
Power supply
E
Backbone
Powering the network
The network requires its own 12 V DC power supply, protected by a
3 amp fuse.
For smaller systems: connect power at any location in the backbone.
For larger systems: connect power at a central point in the
backbone to balance the voltage drop of the network. Make the
24
Wiring
| HDS Live Installation Manual