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New Main Way 2.0
User Manual
3.1.2 Unpacking and Acceptance
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3.2 NMW Layout and Cable Routing Principles
rPDUs are installed at the rear of an IT cabinet. Facing the rPDUs, the left rPDU is
A and the right rPDU is B.
3.2.1 Layout and Cable Routing Principles: Single-Row Aisle
Containment (2N Scenario)
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Issue 05 (2020-10-15)
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Routing mode: The cables are routed over a tray or bracket on a single
layer (E in IEC 60364-5-52). The distance between cables should be
greater than twice the cable diameter.
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Ambient temperature: 30°C
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The general input unit uses 90°C resistant soft cables with copper
conductors, and the power distribution unit uses 70°C resistant soft
cables with copper conductors.
Unpack the equipment and check whether the equipment is paint-peeling,
misshapen, scratched, or soaked. If so, record the information and contact the
equipment carrier and the local Huawei office immediately.
Check against the delivery list that the equipment and components are
correct and complete. If some components are missing or do not comply with
the models in the delivery list, record the information and contact Huawei or
the local Huawei office immediately.
There are two routes of NMWs, routes A and B, for each row of cabinets. The
number of power distribution units deployed on each route of the NMW
should be the same.
If the power density per cabinet is less than or equal to 10 kW, single-phase
power distribution units are used and each power distribution unit supports a
maximum of six IT or network cabinets. One power distribution unit provides
six power outputs to route A, and the other power distribution unit provides
six power outputs to route B for the corresponding cabinets.
If the power density per cabinet is greater than 10 kW, three-phase power
distribution units are used and each power distribution unit supports a
maximum of two IT or network cabinets. One power distribution unit provides
two power outputs to route A, and the other power distribution unit provides
two power outputs to route B for the corresponding cabinets.
The figures use single-phase power distribution units as an example.
Copyright © Huawei Technologies Co., Ltd.
3 Installation
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