Routing The External Power Cables And Pgnd Cable - Huawei SmartAX MA5800-X15 Quick Installation Manual

7 Cable Routing

7.2 Routing the External Power Cables and PGND Cable

• Shut off the DC input, and attach labels on the switches that will be set during the cabling work.
• Insulate the DC terminals and all unnecessary bare parts.
• If the lap resistance between PGND cable of the device and ground bar exceeds 0.1 ohm, route
PGND cable again.
To office power supply
Top of the cabinet (top view)
Hole for power cables and
ground cables.
PGND cable
Reserved Front door side
NEG
(Blue)
RTN(Black)
9
Phillips screwdriver
• The four power inputs need
to be controlled by
NEG
independent circuit breakers
(Blue)
when being connected to
the DC PDU.
• The PDU requires four -48
V/-60 V power inputs and
the rated current of one
break circuit is at least 60 A.
• The image is for your
reference only. The
appearance of actual
delivered PDB prevails.
PGND cable (with
OT terminals)
External Power
cables