4.3.6 PFT in the Main Unit (installed by default)
Function
When the power supply to the Main Unit fails, power failure transfer (PFT) will switch from the current
connection to the Power Failure Connection. Refer to "15.1.9 Power Failure Transfer" in the Feature Manual
for further information.
For information about using this card, refer to "4.12 Power Failure Connections".
Pin Assignments
For PFT port
No.
1
2
3
4
5
1
8
6
7
8
Document Version 2016-03
Signal Name
TA
RA
Reserved
Reserved
Reserved
Reserved
TB
RB
4.3.6 PFT in the Main Unit (installed by default)
Function
Tip port 1
Ring port 1
–
–
–
–
Tip port 2
Ring port 2
Installation Manual
115