Huawei OptiX OSN 2500 Quick Installation Manual page 30

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Power Cables and PGND Cables -- Downward cabling
• Power Cables and PGND Cables -- Downward cabling (N1PDU)
Install OT terminals correctly according to the wiring terminal labels on the plastic
cover of the DC power distribution box.
Cabling
tough
Route the power cables and PGND cables into the cabinet through the lower enclosure frame. Route the
PGND cables along the cable area of the cabinet, route them through the power cable hole on the top of
the cabinet, and then connect the PGND cables to the ground screws on the top of the cabinet.
Plug the two-hole OT terminals of the power cables, from top downwards, with the fluted sides facing the
front side of the cabinet, into the wiring terminals marked with RTN(+) and NEG(-) respectively on the DC
power distribution box.
a
Connect the power cable and
PGND cable in the similar
way for upward cabling.
a
27
Cable type
BGND cables
PGND cables Yellow and green
-48V power cables
Phillips screwdriver
Adjustable wrench
Diagonal pliers
Color
Black
Blue