Power Connection - Raymarine E70141 Installation And Operation Instruction Manual

4.3 Power connection

Power can be supplied to the unit either directly or as part of the
SeaTalk network.
A SeaTalk system requires one 12 V dc supply, connected to the
SeaTalk backbone. This can be provided:
• By a battery via the distribution panel, or
• From a Raymarine course computer, via SeaTalk or SeaTalk
Power connection example
Direct power connection
1
2
3
SeaTalk power connection
1
2
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.
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.
20
3 A circuit breaker or fuse.
SeaTalk power cable.
12 V dc vessel power supply.
5 A circuit breaker or fuse.
12 V dc vessel power supply.
SeaTalk power cables
Part number
D229
Power cable extension (12 V)
.
ng
The following restrictions apply to any extension to the power cable:
• Cable must be of a suitable gauge for the circuit load.
• Cable must be wired back to the distribution panel.
Total length (max)
0 to 5 m (0 to 16.4 ft)
5 to 10 m (16.4 to 32.8 ft)
10 to 15 m (32.8 to 49.2 ft)
15 to 20 m (49.2 to 65.5 ft)
SeaTalk accessories
SeaTalk cables and accessories for use with compatible products.
Description
3–way SeaTalk junction
box
1 m (3.28 ft) SeaTalk
extension cable
3 m (9.8 ft) SeaTalk
extension cable
5 m (16.4 ft) SeaTalk
extension cable
9 m (29.5 ft) SeaTalk
extension cable
12 m (39.4 ft) SeaTalk
extension cable
20 m (65.6 ft) SeaTalk
extension cable
Description
SeaTalk power cable.
Cable gauge (AWG)
18
14
12
12
Part No Notes
D244
D284
D285
D286
D287
E25051
D288
i40