By Capt. Grant Rafter Bridges like this are found on lots of high-end commercial vessels. The Octoplex System allows you to control all of your A.C. and D.C. components. And you can use it over your entire vessel. The Octoplex System with all of the covers removed from the housing. Centralized buses cut down on the wiring needed aboard. E-Plex can be found on production boats such as the Grand Banks 41EU.