Panasonic KX-TD816 Installation Manual page 105

Installing the Remote Card (KX-TD196) or High Speed Remote Card (KX-TD197)
1.
Insert the upper side of the Remote Card into the two hooks on the main unit.
2.
Press down the two corners of the lower side of the Remote Card.
3.
Connect the cord to the Remote Card Connector.
Features Guide References
System Programming and Diagnosis with Personal Computer
General Installation
2.4 Installation of Optional Cards and Unit
Remote Card
105