Gateway ground connection
The gateway MUST have a ground connection to the vessel’s RF ground point; where no RF ground is available, connect the gateway’s ground connection to the vessel’s negative (–) battery terminal.
GroundingGatewaygrounding
The top fixing hole in the gateway is used for the ground connection point. There are 3 options for the ground connection; choose the most appropriate:
| GroundingGatewaygrounding | Mounting scenario |
Grounding solution |
|---|---|---|
1 |
Gateway is mounted on a metal surface which is already grounded. |
The gateway’s fixing screw will act as a suitable ground connection. |
2 |
Gateway is mounted on a non-grounded surface. |
Use the supplied ring crimp terminal and a suitable ground wire (not supplied), connected to the gateway’s top fixing hole using the fixing screw. |
3 |
Gateway is not being mounted on a surface. |
Use the supplied ring crimp terminal and a suitable ground wire (not supplied), connected to the gateway’s top fixing hole using an M4 x 10 Machine screw and M4 nut (not supplied). |
Ground wire specification
The preferred minimum requirement for the path to ground (bonded or non-bonded) is via a flat tinned copper braid, with a 5 A rating or greater. If this is not possible, an equivalent stranded wire conductor may be used, with the following minimum gauge:
1 mm2 (18 AWG).
In any grounding system, always keep the length of connecting braid or wires as short as possible.