Huawei SmartAX MA5800-X15, Быстрое руководство по установке

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7 Routing Cables
Connect the PGND cable
Connect the power cables
RTN(black)
NEG (blue)
To the DC PDU
If the subrack is installed in a Huawei cabinet, it does not need to be separately grounded
because the Huawei cabinet has been ground through mounting ears. However, it needs to
be separately grounded if being installed in a third-party cabinet or rack that cannot be
grounded through mounting ears. The ground point can be either of the following points.
• The two power inputs need to be controlled by
independent circuit breakers when being
connected to the DC PDU.
• The PDU requires two -48 V/-60 V power inputs
and the rated current of one break circuit is at least
60 A.
7.3 Routing the Power Cables and PGND Cable of the Equipment
•
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.
Phillips screwdriver
Power cables
PGND cable
10