Panasonic KX-TD816 Installation Manual page 104

2.4 Installation of Optional Cards and Unit
10.
Fix the cords to the wall as shown here, so that the front cover can be opened.
D816
DIGITAL SUPER HYBRID SYSTEM
KX-TD1232
Installing the DISA Card (KX-TD191)
1.
Insert the upper side of the DISA Card into the two hooks on the main unit.
2.
Press down the two corners of the lower side of the DISA Card.
3.
Connect the cord to the DISA Card Connector.
Features Guide References
Direct Inward System Access (DISA)
104
Cord holder
DISA Card
General Installation