2-30 Installation
2.18 Auxiliary Connection for Power Failure Transfer
Power failure transfer connects a specific single line telephone (SLT) to selected exchange
lines in the event of system power failure,as follows.
Exchange line 1 – extension (T,R) port 01
Exchange line 4 – extension (T,R) port 09
Connection of exchange lines 1 and 4, and the respective extensions require no auxiliary
connection.
•In the event of a power failure,system memory is protected by a factory-provided lithium
battery. There is no memory loss except the Camp-on,Saved Number Redial, Last Number
Redial, Call Park and Message Waiting memories.
•The system automatically changes the current connection to the above connection when the
power supply stops.
•Proprietary telephones cannot be used during a power failure. Therefore,we recommend
connecting SLTs in parallel with proprietary telephones connected to extension ports
01 and 09.
• Feature References
Section 3, Features
Power Failure Transfer,Parallelled Telephone Connection
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