Chapter 14 — Installing Power Failure Transfer Units

Page 189 of 332

 

 

Figure 58

Power fail transfer

 

 

 

 

 

 

 

 

 

QUA6A

 

 

 

 

 

 

 

 

 

PFTU

 

 

 

 

 

 

 

 

 

XFER

A W- BL- O- W- G- W-

 

 

 

U

BL W W O W G

 

 

 

X

 

 

 

 

 

 

 

 

 

P

T R T R T R

 

 

J1

TR 2 3 4

5 5

F

1

1

2

2

3

3

 

2

2

T

PFT1

 

 

 

 

 

 

V V

U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NTAK1104

 

 

 

 

 

 

 

 

 

 

 

553-8343.EPS

PFTU control lead signals

To connect PFTUs from other manufacturers, use the information provided in Table 36.

Table 36

PFTU control lead signals

NTAK1104 AUX

Lead State when PFTU is

Lead State when PFTU

cable lead

in non-transferred state

is in transferred state

 

 

 

BRTN

GROUND

GROUND

BRTN

GROUND

GROUND

-48V AUX

-48V DC (250 mA max.)

-48V DC (250 mA max.)

PFTS

OPEN

GROUND

 

 

 

Option 11C Mini Planning and Installation Guide

Page 189
Image 189
Nortel Networks Option 11C Mini manual Pftu control lead signals, Power fail transfer, NTAK1104