Patent ID: 7438577

Claim:
A method of coupling a first circuit board with a second circuit board, comprising: positioning the second circuit board between two guide rails that orthogonally extend from the first circuit board; moving the second circuit board along the guide rails toward the first circuit board to insert a connector on the second circuit board into a connector on the first circuit board; moving a first cam lever pivotally supported on one of the guides from an open position to a closed position while contacting the second circuit board, to secure the second circuit board to the first circuit board; moving a second cam lever from an open position to a closed position while contacting the second circuit board, to secure the second circuit board to the first circuit board; and moving a coupling member from an unlocked position to a locked position while contacting the second circuit board, to lock the first cam lever in the closed position and to engage a switch on the second circuit board to activate the second circuit board, wherein moving the coupling member from the unlocked position to the locked position comprises sliding the coupling member on one of the first and second cam levers into engagement with the other of the first and second cam levers.