Huawei OptiX OSN 3500 Quick Installation Manual page 45

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Installing and Routing Power Cables and PGND Cables - Underfloor
Cabling
• Installing and Routing Power Cables and PGND Cables – Underfloor Cabling (TN51PDU)
CAUTION
Install OT terminals correctly according to the wiring terminal labels on the plastic cover of the DC power
distribution box.
TN51PDU
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.
Phillips screwdriver
Adjustable wrench
PGND cable
(green and yellow)
M8 screw
BGND (black)
RTN(+)
–48 V power cable (blue)
Cable area
42
Diagonal pliers
NEG(-)