14 terminals on the side of equipment (even number), 14 connected opposite terminals (odd number) are provided.
13 terminals are connected to each other, #13 and #14 terminals are insulated circuits
The circuit arrangement can be connected in up to 12 independent circuits. Additional DC auxiliary circuits are provided with an insulated link to terminals #13 and #14.
Terminal #13 and #14 circuit opens automatically when the insulation plug is removed.
