DCN DCRS-9800 Series, Инструкция по установке

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DCRS-9800 InstallManual Chapter 2 Hardware Installation
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2.6.1.3 Wearing an ESD Wrist Strap
An ESD Wrist Strap must be worn during the installation of the switch. To prevent any
damage occurring to the device, avoid contact between the printed circuit boards and your
clothing. Avoid bodily contact with components on the circuit boards if possible.
To wear an ESD Wrist Strap:
Step 1: place your hand into the ESD wrist strap.
Step 2: tighten the fastener and ensure that it makes maximum contact with the skin.
Step 3: Insert the equipment end of the strap into the antistatic socket (indicated by an
ESD symbol) in the switch front panel.
2.6.2 Switch grounding
A good grounding system is the groundwork for the smooth and safe operation of the
DCRS-9800 series, and an excellent way to prevent lightning strikes and resistance
interference. Please follow the switch grounding specification instructions, verify the
installation site’s grounding condition and ensure proper grounding accordingly.
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Proper grounding
When using an AC power source, the device must be grounded with the green
and yellow ground cables, otherwise, shock hazards may occur when insulation
resistance between the internal power supply and the chassis degrades.
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Lightning protection grounding
The lightning protection system is an independent system consisting of a
lightning rod, conductor and connection joint with the grounding system. The
grounding system usually is shared with the power reference grounding and green
and yellow ground cable grounding. Lightning protection grounding is a building
requirement, not a specific requirement of the switch.
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Electromagnetic compliance grounding
This refers to the grounding to comply with switch electromagnetic compatibility
requirements, including shielded grounding, filter grounds, noise, and interference
control and level reference. The overall grounding requirements are the sum total of
the above. Ground resistance value should be less than 1 ohm.
The DCRS-9800 series provides chassis grounding post in the lower rear
chassis, marked as “ ”. Chassis protection grounding should be properly connected
to the rack grounding connector.
The ground cabling procedures are listed below:
Step 1: remove the nuts from the rear chassis grounding posts