Here are documents that will be of help installing MPower. Look under the Documents tab of each device to find manuals and documentation specific to that device.
You want to use this spreadsheet to convert between Garmin Switch Numbers and NMEA Instance and Channel numbers.
ABOUT THE SYSTEM
The Evolution of the Connected Boat is Here. MPower®, from Maretron, a Carling Technologies Brand. The new MPower® Digital Switching Platform delivers simple, intuitive control over the increasingly complex systems found on today’s vessels. The result is a safer, more enjoyable boating experience. We are your ONE source for creating the intelligent boat ... from cables and connectors to complete vessel monitoring and control solutions.