A method for manufacturing a magneto-resistance effect element is provided. Extensions are strongly typed instances that cannot exist independently and must be attached to an Item or a Nested Element. For example in a LTELTE-A system environment, the setup configuration of a S1 bearer between eNB and SGW can be controlled on the basis of setup requirements for an E-RAB. A locking ring is disposed around the plug proximate to the locking pin, and has at least one indentation. The generator also supplies power to an aircraft DC bus in parallel to the supply to the accessory bus.