Determining the Ventilation Mode and Cabinet Installation Mode
5.3
Planning the Ventilation Mode of a Device
No.
Device Ventilation Mode
Ventilation Mode of the
Equipment Room
Suitable
Cabinet
Whether a Multi-
Purpose Fiber
Management Cabinet
Is Required
A
Air inlet from front - air outlet from
top/front
• Flood air
• Overhead air through ducts A63B
No
B
Air inlet from front - air outlet from top
(recommended)
• Flood air
• Overhead air through ducts
• Underfloor air supply
(Aisles are not closed, cold
aisles are used in the front
and rear, and perforated
floors are used in both the
front and rear.)
A63B
Yes
C
Air inlet from the bottom - air outlet
from the top/front (restricted)
Note
:
The use of ventilation mode C is
restricted. Some materials related
to ventilation mode C involve
version change. Before placing an
order or starting installation in this
mode, contact Huawei engineers.
• Underfloor air supply
(precise air supply)
A63B
Yes
D
Air inlet from front - air outlet from
rear
• Underfloor air supply
(Aisles are not closed, cold
aisle is used in the front,
hot aisle is used in the rear,
and perforated floors are
used in the front.)
• Underfloor air supply
(closed cold aisles)
• Modular equipment room
(closed cold aisles)
A66B
No
E
Air inlet from front - air outlet from
top/rear (not recommended)
-
A63B
No
F
Air inlet from bottom - air outlet from
top/rear (not recommended)
-
A63B
Yes
19
Planning the ventilation modes of the equipment room and devices
NOTE
•
Before device installation, you need to plan the ventilation modes of the equipment room and
devices to ensure that the heat dissipation of the equipment room matches the heat dissipation
of devices.
•
This document does not describe how to plan ventilation modes E and F.