Lucent Technologies R5SI Figure 10-20. Power Distribution Unit for DC-Power ed Systems (PDU8890CF-1)

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
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Maintenance Object Repair Procedures
Page10-286CARR-POW (Carrier Port Power Unit) for DC-Powered Systems
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Figure 10-20. Power Distribution Unit for DC-Power ed Systems
(PDU8890CF-1)
Circuit Breakers
CB1-CB5 are
located on the
back of the PDU
Power Distribution Unit
Fans 3 Front
3 Back
644A Carrier C 645B
644A Carrier B 645B
644A Carrier A 645B
S2 S3 S1
a
i
r
f
l
o
w
CB3 CB2
CB1 CB1
A
H
D
1
Filter
Filter
644A Carrier D 645B
644A Carrier E 645B
DC
Distribution
a
i
r
f
l
o
w
CB5 CB4
S3
Ring Generator
CB6
S4 S4