40 
•Installing and Routing Power Cables and PGND Cables – Overhead Cabling (DPD63-8-8 PDU)  
Ground cable  
(yellow-green) 
Upper cable 
tray 
M8 screw 
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. 
Install the ground cable prior to the power cables. 
NOTE 
CAUTION 
Phillips screwdriver 
Adjustable wrench 
Bind the power cables in a bundle. Route the external power 
cables and ground cable through the upper cable tray. 
Particularly, connect the ground cable to the ground bolt at the 
top of the cabinet; thread the external power cables into the 
cabinet through the cable holes and connect them to the DC 
input terminals on the DC PDU at the top of the cabinet. 
Put the cord end terminal on the RTN(+) or NEG(-) input 
terminal on the PDU with the fluted side facing outward. Then 
tighten the screws. 
If copper fittings have been installed in the power input areas, 
put the cord end terminal of each black power cable (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(-) input terminal on the PDU with the protruding side 
facing outward. 
BGND cables (black) 
RTN(+) 
3+0.5 N.M 
M6 
A1 
(+) 
A2 
(+) 
A3 
(+) 
A4 
(+) 
B1 
(+) 
B2 
(+) 
B3 
(+) 
B4 
(+) 
A1 
(-) 
A2 
(-) 
A3 
(-) 
A4 
(-) 
B1 
(-) 
B2 
(-) 
B3 
(-) 
B4 
(-) 
A1/A2 (-)  A3/A4 (-)  B1/B2 (-)  B3/B4 (-) 
A1 
(+) 
A3 
(+) 
B1 
(+) 
B3 
(+) 
-48 V power cables (blue) 
NEG(-) 
-48 V power cables (blue) 
NEG(-) 
PDU with short-
circuiting copper 
bars 
 
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. 
CAUTION 
-48 V power cables (blue) 
NEG(-) 
BGND cables (black) 
RTN(+) 
-48 V power cables (blue) 
NEG(-)