Panasonic KX-TD816 Installation Manual page 97

25 a
Auxiliary Connection for Power
Failure Transfer
Notes In the event of a power failure, system memory is protected by the
factory-provided lithium battery. There is no memory loss except the
memories of Camp-on, Saved Number Redial, Last Number Redial,
Call Park and Message Waiting.
The system changes the current connection to the above connection
automatically when the power supply stops.
If DC power is available from backup batteries if AC power fails, the
system does not change the current connection to the above connection.
The KX-TD1232 is illustrated as a main unit, and the KX-TD170 and
KX-TD 180 are illustrated as an expansion units.
Programming Reference
Section 4, System Programming
[
1091 Expansion Unit Type
Feature References
Section 3, Features,
Power Failure Transfer
Installation
2-63