Huawei OptiX OSN 3500 Quick Installation Manual page 39

• Connections of the power cables between the OptiX OSN 3500 III subrack and the DC power
distribution box (DPD63-8-8 PDU)
NOTE
Power cable connections vary depending on the power sources in the equipment room. When the power source
supplies two 63 A power inputs and two 125 A power inputs, DPD63-8-8 PDU is used to interface four main/backup
power inputs.
-48 V -48 V
Power source in
the equipment
room
0 V 0 V
DPD63-8-8 PDU Ground Point
A-RTN2(+)
A-RTN1(+)
A-NEG2(-)
A-NEG1(-)
B-RTN1(+)
B-RTN2(+)
B-NEG1(-)
B-NEG2(-)
Ground bar in the equipment room
CAUTION
The power cables for the subrack are
connected to the DC power distribution box
before delivery. When installing the power
cables, you can connect the power cable
connectors to the PIU board in the subrack
only after changing the 3V3 connector of
the power cables of the subrack to a two-
hole OT terminal. For information about
how to assemble the connector, see the
"Assembling Cable Connectors" part.
36
-48 V -48 V
Power source in the
equipment room
0 V 0 V
PGND