General requirements – H3C Technologies H3C S3600 Series Switches Benutzerhandbuch
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Warning: Suggests the possibility of a major accident or severe injury, or equipment damage, if safety
precautions are ignored.
Caution: Suggests the possibility of a severe injury, or equipment damage, if safety precautions are
ignored.
Note: Suggests the possibility of an injury or equipment damage, if safety precautions are ignored
General Requirements
In order to reduce the technically unavoidable residual risk to a minimum, it is imperative to follow the
rules below:
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Read all the instructions before operation.
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When installing the unit, always make the ground connection first and disconnect it last.
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Do not block ventilation openings while the system is on, and keep at least 5 cm distance from
ventilation openings and walls or other things which may block the openings.
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Never defeat the ground conductor or operate the equipment in the absence of a suitably installed
ground conductor. Contact the appropriate electrical inspection.
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The unit/system must be connected to the protection ground before operation permanently. And
the cross-section of protective earthing conductor shall be at least 1mm2 or 16AWG
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For AC supplied model: The device applies to TN power systems.
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For DC supplied model: Reinforced insulation must be provided to isolate 61-72V source from the
AC mains supply.
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For DC supplied model: The device applies to DC power source that complies with the Safety
Extra-Low Voltage (SELV) requirements in IEC 60950 based safety standards; The
S3600-28P-PWR-EI/S3600-52P-PWR-EI can only use PoE external power supply recommended
by H3C as the DC-input, otherwise, the device can be damaged.
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For this equipment, a readily accessible disconnect device shall be incorporated in the building
installation wiring.
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For AC supplied model: The plug-socket combination must be accessible at all times because it
serves as the main disconnecting device.
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Because the device has several power supplies, disconnect all of them to switch off the device.
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To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telephone-network voltage (TNV) circuits.
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To prevent laser radiation from hurting your eyes, never stare into the open optical port.
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Before operation, the equipment must be fixed securely on the floor or other reliable objects, such
as walls and mounting racks.
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For safety It is not recommended to wear jewelry and watch during operation on device.
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Installation, configuration and disassembly must be done only by skillful personnel according to the
documents concerned.
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The unit/system must be operated by experts and authorized users only.
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Any replacement or change to the system or parts of the system (including the software) must be
done by qualified or authorized personnel of H3C.
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Any fault and error that might affect safety must be reported immediately by the user to the person
in charge.