Installing Qua6 Pftus - Nortel 1000M Installation And Commissioning Manual

Page 150 of 456

Installing QUA6 PFTUs

NN43021-310 Standard 02.01
Installing Power Failure Transfer Units
2 For each trunk assigned to the PFTU.
• Connect the tip and ring of the CO card to the third pair of the
assigned PFTU.
• Connect the tip and ring of the trunk to the fourth pair of the assigned
PFTU.
QUA6 PFTUs are used for Large System installations. The QUA6 PFTU is
powered from an auxiliary –48 V DC fused output from the external power
equipment.
Figure 60 on page 146
connections. For PFTU operation, the wiring from the following equipment
cross-connects through termination areas at the MDF:
1 PFTU
2 Auxiliary –48 V DC
3 System monitor
4 Attendant console (optional)
5 Designated telephones
6 Central Office trunks
December 2007
End of Procedure
shows a high-level view of QUA6 PFTU alarm