ULINK2 J1 Jumper

When I proved the J1 pins and VCC, I noticed that VCC is electrically connected to the "ARM" pin among the 3 pins in the J1 jumper of the ULINK2. When I set the jumper to 3.3V, VCC doesn't actually get any voltage. Is this the expected behavior? What is the relation between the J1 jumper and the VCC pin?

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