Panasonic KX-NS1000 Installation Manual page 105

2.
Insert the screws into the holes on the card, and tighten the screws to secure the card.
Removing a DSP Card Installed in the DSP Card Slot
1.
Loosen and remove the screws.
Document Version 2016-03
4.2.5 Installing/Removing the Optional Service Cards
Screws
Screws
Installation Manual 105