Raymarine RNS-8, Manual, Page: 35 / 66

10.2 Power connection
The power for the network switch is provided directly by a 12 V or 24 V
power source.
The network switch is supplied with a power cable with bare stripped wires,
suitable for direct connection to a 12 V or 24 V power supply:
1. RNS-8 Network Switch.
2. 1.5 m (4.9 ft) Power cable (supplied).
3. Red wire (positive) — connects to the power supply’s positive terminal.
4. Waterproof fuse holder containing a suitably-rated inline fuse ( not
supplied ), which must be fitted to the red positive wire — refer to the
fuse ratings below.
5. Gray wire (drain) — connects to the vessel RF ground (if available), or the
negative battery terminal.
6. Black wire (negative) — connects to the power supply’s negative terminal.
Note:
In order to sufficiently power PoE devices, the network switch’s power
supply must exceed 10.8 V dc.
Inline fuse and thermal breaker ratings
The following inline fuse and thermal breaker ratings apply to your product:
Inline fuse rating Thermal breaker rating
• 12 V : 15 A
• 24 V : 8 A
• 12 V : 20 A
• 24 V : 10 A
Note:
The suitable fuse rating for the thermal breaker is dependent on the
number of devices you are connecting. If in doubt consult an authorized
Raymarine dealer.
10.3 Power distribution
Recommendations and best practice for the power connection of products
supplied with a drain wire as part of the supplied power cable.
• The product is supplied with a power cable, either as a separate item or a
captive cable permanently attached to the product. Only use the power
cable supplied with the product. Do NOT use a power cable designed for,
or supplied with, a different product.
• Refer to the Power connection section for more information on how to
identify the wires in your product’s power cable, and where to connect
them.
• See below for more information on implementation for some common
power distribution scenarios:
Power connections 35