It disconnects pin 1 on the XLR jack, which is connected to the braid or foil shield in the cable and acts as the ground point of the circuit.
It disconnects pin 1 on the XLR jack or foil shield in the cable as the ground point of the circuit. It disconnects pin 1 on the XLR jack or foil shield in acts as the ground point of the circuit. The XLR jack is connected to the braid.