Connection Considerations
You should carefully plan the layout of the device, the power wiring, the NMEA 2000 network, and all switched
devices before making any connections.
When making connections, observe these considerations.
• This device supports a maximum of 50 A total for all active channels. When planning switched connections,
consider the power needs of all potential load combinations to ensure that the total active load does not
exceed 50 A when in use.
• You must connect both the X1 and X2 wiring harnesses to this device, but you do not have to connect
devices to every wire on the harnesses.
• You must make all bare wire connections using a marine-grade, waterproof connectors or waterproof heat-
shrink.
• You must insulate any unused bare wire connections after completing installation.
• When connecting a device or circuit to the wiring harness, ensure that the power requirements for the device
or circuit do not exceed the rated SW fuse for the channel.
• When extending wires, you must use the appropriate wire gauge as specified for the power wire (
) and for the individual wires on the wiring harnesses (
,
).
• This device must connect to the same NMEA 2000 network as the chartplotter you want to use for digital
switching (
NMEA 2000 Network Connection, page 5
).
4
