2.2 Installation of the Hybrid IP-PBX — KX-TDA100/KX-TDA200
Push the release lever in the direction of the arrow, so that the PSU engages securely with
the connector on the back board.
Turn the 4 screws clockwise, in the order indicated by the numbers 1 to 4, to fix the PSU.
Replacing the Power Supply Unit
Unplug the AC power cord and Back-up Battery Cable.