Raymarine E70058, Инструкция по установке и эксплуатации, Страница: 22 / 68

Power connection
Power is supplied to the product over the SeaTalk ng network.
A SeaTalk ng system requires one 12 V dc supply, connected to the
SeaTalk ng backbone. This can be provided:
• By a battery via the distribution panel, or
• From a Raymarine course computer, via a SeaTalk or a SeaTalk ng
system.
Power connection example
SeaTalk ng power connection
SeaTalk
ng
D12391-1
12 V
3
1 2
1 SeaTalk ng instrument.
2 SeaTalk ng instrument.
3 12 V dc vessel power supply.
Warning: Grounding not required
This product is fully insulated and does NOT require
separate grounding.
Warning: Positive ground systems
Do not connect this unit to a system which has positive
grounding.
SeaTalk power protection
The power supply must be protected by a 5 A fuse or a circuit
breaker providing equivalent protection.
Raymarine recommends that the power is connected to a SeaTalk
system in such a way that the current drawn on each side of the
power connection point is equal.
SeaTalk power cables
Part number Description
D229 SeaTalk power cable.
SeaTalk ng power protection
The power supply must be protected by a 5 A fuse or a circuit
breaker providing equivalent protection.
Raymarine recommends that the power is connected to a SeaTalk ng
system in such a way that the current drawn on each side of the
power connection point is equal.
SeaTalk ng power cables
Part number Description
A06049 SeaTalk ng power cable
SeaTalk ng connection
The unit can be connected as part of a SeaTalk ng network.
12 V dc
SeaTalk
ng
D12531-1
1 1 2 3
4
5 6
7 8
1 i70 instrument displays (SeaTalk )ng )
2 i60 Wind instrument (SeaTalk )ng )
3 Raymarine wind vane transducer
4 12 V dc power supply
5 i50 Speed instrument (SeaTalk )ng )
6 i50 Depth instrument (SeaTalk )ng )
7 Speed transducer
8 Depth transducer
SeaTalk ng cabling
SeaTalk ng cables and connectors
Connection / Cable Notes
Backbone cables (various lengths) The main cable carrying data. Spurs
from the backbone are used to
connect SeaTalk
ng devices.
T-piece connectors Used to make junctions in the
backbone to which devices can then
be connected.
Terminators Required at either end of the
backbone.
Spur cables Used to connect devices. Devices
may be daisy chained or connected
directly to the T-pieces
SeaTalk ng 5–way connector Used to branch, split, or make
additional connections in SeaTalk
ng
networks.
SeaTalk ng power
The SeaTalk ng bus requires a 12 V power supply. This may be
provided from:
• Raymarine SPX course computer, or
• Other separate regulated 12 V supply.
Note: SeaTalk ng does NOT supply power to multifunction displays
and other equipment with a dedicated power supply input.
22 i50