Access to the XAUI lanes of a 10 Gigabit Ethernet device is provided when needed for testing of the XAUI electrical interface. One end of a movable arm is pivotably attached to the body so that the other end of the movable arm may swing into and out of engagement with the tip of the suturing needle. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve.