CO or central office
CO or Central Office
It is called three way switching.
Use three-way (as opposed to single pole) toggle switches for this application.
Survivor switches locations every season. Some of their previous locations have included:MalaysiaAustraliaKenyaMarquesasThailandBrazilPanamaVanuatuPalauGuatemalaCook IslandsFijiChinaGabonSamoaNicaraguaPhilippines
They have different voltage. So different switches and breakers.
A trunk
To connect telephone company central offices (COs), To provide a path between switches, To connect PBXs
Analog switches Fiber optic cables
Circuit
Analog switches Fiber optic cables
Analog Switches Fiber Optic Cables
Analog Switches Fiber Optic Cables
There are no switches, and no underground locations on Spy Island.