Panasonic KX-NS1000 Installation Manual page 114

4.2.5 Installing/Removing the Optional Service Cards
2.
Position the card in the open slot, making sure that the tabs on the both sides of the card fit into place.
Then, holding the card firmly in place, lower the rear end so that the holes of the card are aligned with the
screw holes.
114 Installation Manual Document Version 2016-03