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Figure 1
QSY22 Power Supply connections
Fuse block
Fuse
P14 and P15
connectors from
power wiring
harness in cabinet
To -48V input on TBC
To GRD on TBC
GRD connection to GRD bus
Q S Y 2 2 C
MSG WTG PWR SPLT
–150V FA
F1
F2
F11
F3
F4
F13
F5
F6
F15
F7
F8
J14
J15
–150V OUT
–150V OUT
TB1
–48V
GRD
–150V
1
2
3
4
Input fuse
System requirements
–150V FA
F10
F12
F14
F16
F9
SW1
–48V
6.25 A
1
SLO BLO
0
Input switch
Fuse No.
Amps
F1-F7,F10-F16
0.18
F8
1.33
Dummy fuse
—
Message Center
Page 25 of 48
Left mounting
bracket
PO634871
553-5853
Dummy fuse
QCODE
Color
QFF1E
Yellow
QFF1A
White
QFF3A
—
Description and operation
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