Huawei OptiX OSN 2500 Quick Installation Manual page 31

• Power Cables and PGND Cables -- Downward cabling (DPD100-2-8 PDU)
CAUTION
Do not install or remove power cables while the equipment is powered on. Ensure that the power is switched
off prior to removing or installing a power cable to avoid bodily injuries.
Ground cable
(yellow-green)
M6
3+0.5 N.M
M8 screw
Thread power and ground cables into the cabinet through cable holes at the
bottom of the cabinet. Route the ground cable by way of the cabling area,
thread it through the cable hole at the top of the cabinet, and connect it to the
ground bolt. In addition, route the power cables by way of the cabling area to
the top of the cabinet.
If copper fittings have been installed in the power input areas, put the cord
end terminal of each BGND cable on the RTN(+) input terminal on the
PDU with the fluted side facing outward. Then tighten the screws.
Put the two-hole OT terminal of each blue -48 V power cable on the NEG(-
Cabling
) input terminal on the PDU with the protruding side facing outward.
area
CAUTION
When input terminals on the PDU do not need to be connected with copper fittings, both the blue -48 V
power cables and BGND cables must use cord end terminals.
When input terminals on the PDU have been connected with copper fittings,
the blue -48 V power cables must use two-hole OT terminals instead of cord end terminals.
A1-4 (-)
-48 V power cables (blue)
NEG(-)
Adjustable wrench
A1 B1
(+) (+)
BGND cables (black)
RTN(+)
28
Phillips screwdriver
PDU with 4-in-1
B1-4 (-)
short-circuiting
copper bars
-48 V power cables (blue)
NEG(-)