I use a Miniplex multiplexer (Shipmodul) to network everything.
The B&G Hydra 2000 instruments, the AIS A100 emTrak, the Furuno GPS (GP90) in nmea 0183,
the VHF Icom 506 and the Raymarine plotter (es127) in nmea 2000
The computer in USB (Maxsea Time zero)
And the iPad in Wifi
I chose a multiplexer because I had devices of different ages.