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Preparing for installation
The H3C S9825 & S9855 switch series include the following models:
Series
Product model
Product code
H3C S9825 and
S9855 switch series
S9825-64D
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LS-9825-64D
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LS-9825-64D-H1
S9855-48CD8D
LS-9855-48CD8D
S9855-24B8D
LS-9855-24B8D
The S9825-64D is a 400G high-density aggregation switch. The S9855-48CD8D is a 100G
high-density ToR switch. The S9855-24B8D is a 200G high-density ToR switch. These switches are
designed for high-performance data centers and provide powerful hardware forwarding capacity and
abundant data center features.
The switch series provides the following ports and removable components:
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400G QSFP-DD ports, 100G DSFP ports, and 200G QSFP56 ports.
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Removable fan trays that can be configured in redundancy mode.
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Removable power supplies that can be configured in redundancy mode.
Safety recommendations
To avoid any equipment damage or bodily injury caused by incorrect use, read the following safety
recommendations before installation. Note that the recommendations do not cover every possible
hazardous condition.
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Before cleaning the switch, remove all power cords from the switch. Do not clean the switch
with wet cloth or liquid.
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Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
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Do not place the switch on an unstable case or desk. The switch might be severely damaged in
case of a fall.
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Ensure good ventilation in the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
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Make sure the operating voltage is in the required range.
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To avoid electrical shocks, do not open the chassis while the switch is operating. As a best
practice, do not open the chassis even if the switch is powered off.
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To avoid ESD damage, always wear an ESD wrist strap when replacing a removable
component such as a power supply or fan tray.
Examining the installation site
The switch must be used indoors. Make sure the installation site meets the following requirements:
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Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
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The rack has a good ventilation system.
