Panasonic KX-TDE600 Installation Manual page 88

3.2.6 Installation of 3- or 4-shelf System (Tower Type)
2.
Insert the BUS-M card along the guide rails in the BUS-M Card Slot (the right-most slot) of the Basic Shelf.
3.
Push the release lever in the direction of the arrow so that the BUS-M card engages securely with the
connector on the back board.
Back Board
4.
Turn the 2 screws clockwise to fix the BUS-M card in place.
88 Installation Manual
Release Lever
Screws
Guide Rail