6
3
Installing and Routing cables
Installing and Routing Power Cables
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Power Distribution Unit (TN81PDU)
Power supply
output area
Power supply
output area
Power supply
switch area
Power supply
switch area
Power supply
input area
a1 a2 a3 a4
A1 A2 A3 A4 B1 B2 B3 B4
b1 b2 b3 b4
Area A of the
DC PDU
Area B of the
DC PDU
Installing copper plates
No
Standard power input of the cabinet
4 × 63 A
Yes
8 × 32 A
Power input of each subrack
2 × 63 A
4 × 32 A
Installing Copper Plates on Site
Suggestion
Yes
No
A DC PDC contains eight power inputs and eight power outputs. If a short-circuit copper bar is used, the eight
power inputs and eight power outputs are changed to four power inputs and eight power outputs.
Area A and area B of the DC PDU serve as mutual hot backups.
The power output terminal at side A of the DC PDU provides two channels of power supplies to the PIU
housed in slot 27 of the OptiX PTN 3900 subrack. The power output terminal at side B of the DC PDU
provides two channels of power supplies to the PIU housed in slot 28 of the subrack.
