The connection system for at least one pair of paired connectors includes a plate (2) including an opening for each pair of connectors, to which is attached a first connector of said pair and a bolt (4) that can be moved laterally in relation to the plate and to the first connector, said bolt (4) being moveable to a first position that enables insertion of the second connector of said pair until contact is made between the connectors and to a second stable coupling and locking position of the connectors.