Panasonic KX-NS300, Руководство по установке

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4.3.8 PFT in KX-NS320 (installed by default)
Function
When the power supply to the Expansion Unit fails, power failure transfer (PFT) will switch from the current
connection to the Power Failure Connection. Refer to "5.6.2 Power Failure Transfer" in the Feature Guide for
further information.
The detail information about this card, refer to "4.12 Power Failure Connections".
Pin Assignments
For PFT port
No. Signal Name Function
8 1
1 TA Tip port 1
2 RA Ring port 1
3 Reserved –
4 Reserved –
5 Reserved –
6 Reserved –
7 TB Tip port 2
8 RB Ring port 2
Installation Manual 111
4.3.8 PFT in KX-NS320 (installed by default)