Pftu Control Lead Signals - Meridian Nortel 1 Option 11C Mini Installation Manual

Chapter 14 — Installing Power Failure Transfer Units
Figure 58
Power fail transfer
A
U
X
P
F
T
U

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
cable lead
BRTN
BRTN
-48V AUX
PFTS
W- BL- O- W- G- W-
BL W W O W G
T R T R T R
1 1 2 2 3 3
Lead State when PFTU is
in non-transferred state
GROUND
GROUND
-48V DC (250 mA max.)
OPEN
Option 11C Mini
5 5
TR 2 3 4
2 2
PFT1
V V
NTAK1104
Lead State when PFTU
is in transferred state
GROUND
GROUND
-48V DC (250 mA max.)
GROUND
Planning and Installation Guide
Page 189 of 332
QUA6A
PFTU
XFER
J1
553-8343.EPS