Panasonic KX-T7020, Руководство по установке

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General Installation
Installation Manual 79
2.5 Auxiliary Connection for Power Failure Transfer
2.5.1 Auxiliary Connection for Power Failure Transfer
Power Failure Transfer connects specific single line telephones to selected outside lines in the
event of system power failure as follows:
Outside Line 1 — Extension (T, R) Jack 1 /
Outside Line 3 — Extension (T, R) Jack 9 /
Outside Line 9 — Extension (T, R) Jack 17
Connections of outside lines 1 through 3 and the respective extensions require no auxiliary
connection. Outside line 9 requires auxiliary connection to implement this feature.
Insert the modular plugs of connection cords (4-conductor wiring) to the modular jacks of 4
CO Line Expansion Unit and the amphenol connector of 8 Extension Expansion Unit 1.
Note
• In the event of a power failure, system memory is protected by a 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 this 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.
Features Guide Reference
Power Failure Transfer
Panasonic
4CO
ADVANCED HYBRID SYSTEM
PFT PARTS
2CO W/PFT
2CO
8EXT
ADVANCED HYBRID SYSTEM
2CO
PFT ports
R: Ring
T: Tip
T2 R1 T1 R2
View of TEL Jack (Outside Line)