Esd Prevention - H3C SecPath U200 Series Installation Manual

ESD prevention

CAUTION:
Check the resistance of the ESD-preventive wrist strap for safety. The resistance reading should be in
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the range of 1 to 10 megohm (Mohm) between human body and the ground.
The UTM device does not provide any ESD-preventive wrist strap. Prepare it yourself.
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To prevent electrostatic discharge (ESD), follow these guidelines:
Make sure the UTM device and rack are properly grounded.
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An anti-static floor is installed and properly grounded.
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Maintain the humidity and temperature at a proper level in the equipment room. For more
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information, see
Always wear an ESD-preventive wrist strap and ESD-preventive cloth when touching an interface
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module or transceiver module.
• Place the removed CF card or interface module on an antistatic workbench, with the face upward,
or put it into an antistatic bag.
Touch only the edges, instead of electronic components when observing or moving a removed CF
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card or interface module.
Make sure the rack is properly grounded before you wear an ESD-preventive wrist strap.
To use the ESD-preventive wrist strap:
1. Wear the wrist strap on your wrist.
2. Lock the wrist strap tight around your wrist to keep good contact with the skin.
3. Insert the ESD-preventive plug into the ESD-preventive socket in the chassis.
4. Attach the alligator to the chassis.
"Temperature and humidity."
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