Page 446 of 466 Installing and cross-connecting a Power Fail Transfer Unit
NN43041-310 Standard 01.11 October 2008
Procedure 107
Connecting an analog (500/2500-type) telephone to a PFTU
1 Locate the telephone terminations on the cross-connect terminal.
2 Connect one end of the cross-connect wire to the leads of the telephone.
3 Locate the PFTU connections (unit PFTU 1 through PFTU 5) assigned to
this telephone at the cross-connect terminal. See Table 60 on page 446.
4 Connect the other end of the cross-connect wire to the pair assigned to
the telephone on the PFTU.
5 Connect a second cross-connect wire to the pair assigned to the Line card
on the PFTU.
6 Locate the Line card terminations on the cross-connect terminal.
7 Connect the other end of the cross-connect wire to the assigned TN
terminal block.
Table 60
Power Fail Transfer Unit connections (Part 1 of 3)
QUA6 J1 Cable
Function Pair Color Connects to:
PFT 1
5T
5R
W-S
S-W
Telephone
6T
6R
R-BL
BL-R
Telephone Line card
7T
7R
R-O
O-R
Central Office Trunk
8T
8R
R-G
G-R
Trunk Line card