Fault Recovery/Diagnostics; Power Failure Transfer; Power Failure Restart - Panasonic KX-TDA100 Features Manual

2.4

Fault Recovery/Diagnostics

2.4.1

Power Failure Transfer

Description
If the power supply to the PBX fails, specific single line telephones (SLTs) are automatically connected to
specific CO lines (Power Failure Connections). The PBX will switch from the current connections to Power
Failure Connections, and all existing conversations will be disconnected.
Only CO line conversations handled by Power Failure Connections can be made during a power failure.
Conditions
• The analog CO line cards, extension cards, and the number of ports which can be used for Power
Failure Connections are as follows:
CO Line Cards: LCOT16 (four ports) and LCOT8 (two ports).
Extension Cards: MSLC16 (four ports), SLC16 (four ports), DHLC8 (two ports) and SLC8 (two ports).
Connect only one extension card to one CO line card.
Note
When power is restored to the PBX and the MPR is recovering, Power Failure Connections remain
established so that any existing conversations can be maintained.
• Only CO line conversations are possible during a power failure. All other features will not work.
Connection References
2.11.1 Power Failure Connections
2.4.2

Power Failure Restart

Description
When the electricity is turned back on, the PBX restarts, loads its stored data automatically, and logs the
event as a System Restart in the error log.
Conditions
• In the event of a power failure, PBX memory is protected by a factory-installed lithium battery. There is
no memory loss except the memories of Automatic Callback Busy (Camp-on) (→ 1.7.1 Automatic
Callback Busy (Camp-on)) and Call Park (→ 1.12.2 Call Park).
2.4 Fault Recovery/Diagnostics
Feature Guide 257