28 Failure rates
Table 6
Failure rates of power equipment
PEC/NT-
1
Description
1
Failure Rate
1
Code per 106 hrs
NTSC03BJ Switched Mode Rectifier
.
N/A
-48V/50A
NT6D40AA DC Peripheral Equipment
1.6
Power Supply
NT6D4 1AA DC Common Equipment 0.6
I
Power Supply
I
NT6D52AA
1
Switched Mode Rectifier
1.2
NTi’DO3AA
NT7DO4AA
43Vf30A
DC Ringing Generator
DC Common/Peripheral
1.81
3.14
Equipment Power Supply
NT7DlOAA DC Power Distribution Unit NIA
NT7D12AA
NT7D14AA
NT7DlSAA
NT8D21AA
NT8D22AB
NT8D29AA AC Common Equipment 1.27
Power Supply
NT8D39AA Power Failure Transfer Unit
5.7
NT8D53AB AC Power Distribution Unit
N/A
.
NT8D53AD Power Distribution Unit
-
N/A
Option 21 A
NT8D56AA
~
Module Power Distribution
N/A
Unit
NT8D56AB Module Power Distribution
N/A
Unit
NT8D57AA Module Power Distribution
N/A
I
Unit
I
+ontinued-
I
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