SL2100 GETTING STARTED GUIDE334.3 Mounting the Daughter boards (3COIDB/1PRIDB)!! Not all boards are hot swappable. Do not remove or install from the chassis when poweringup.1) When the expansion interface boards (082U/008U) are inserted to the chassis, loosen twoscrews and pull out the 082U/008U board.2) Use micro nippers to cut and remove the specified plastic knockout on the 082U/008U/000Uboard.!! For your safety, smooth the cut edges after removing the plastic knockout.3) Mount the daughter board onto the 082U/008U/000U board using the attached screw.Refer to the following figure.4) Insert the board to the specified slot.※For your convenience, the following illustration shows the recognition of the type of Trunkdaughter board.