Huawei OptiX OSN 9800 U32 Enhanced Subrack V100 Quick Installation Manual page 16

2. Ventilation ESD floors are used only on the bottom of the
U32 enhanced subrack. In this case, ventilation mode C (air
inlet from bottom - air outlet from front/top) can be used.
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.
Device
front
Device
front
Modular Equipment Room
Schematic diagram of cold and hot air flows
Features:
1. Modular equipment rooms are deployed on a concrete or marble floor. Considering the duct layout of air
conditioners, ESD floors or bases are raised to a certain height. However, there is no cold air in the space below
floors or bases.
2. The in-row air conditioning system sends cold air to the aisle in front of a device.
3. Uniform preconfigured cabinets are used for devices whose front aisles are closed.
4. The in-row air conditioners are applicable only to the following heat dissipation mode: air inlet from front - air
outlet from rear.
3. Ventilation ESD floors are used only on the front side of
the U32 enhanced subrack. In this case, ventilation mode D
(air inlet from front - air outlet from rear) can be used.
Cabinet row
Solid ESD floor
U32 enhanced back-to-
back installation (with
multi-purpose fiber
management cabinets)
U32 Enhanced (using
an A66B cabinet)
Ventilation ESD floor
Perforated ESD floor
(at the bottom of a
multi-purpose fiber
management cabinet)
16
Device
rear
Device
front