1.7Useful Features

Power Failure Transfer

During a power failure, each of the following outside (CO) lines will be connected to an assigned extension.

Outside (CO) line 1: extension jack 01

Outside (CO) line 4: extension jack 09

!

• During a power failure, all features cannot be used except for incoming and outgoing

outside calls from extension jacks 01 and 09.

 

If extension jacks 01 and 09 are connected to proprietary telephones, disconnect the units and connect single line telephones.

Automobile type batteries, which are customer supplied, can be connected as a system back up power supply to operate all the features during a power failure.

The batteries can be connected directly to the unit with optional cables. For more information, refer to the Installation Manual.

• See the Installation Manual, Section 3, “Power Failure Transfer”.

Lockout

If one party in a conversation goes on-hook, both parties will be disconnected from the speech path automatically. A reorder tone is sent to the off-hook party before it is disconnected. No operation is necessary.

Advanced Operations

Operations 1-89

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Panasonic KX-TA308 operating instructions Power Failure Transfer, Lockout