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Protection measures
To prevent electrostatic damage, observe the following:
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Ensure that the access controller and the floor is well grounded.
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Keep the equipment room clean.
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Maintain suitable temperature and humidity;
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Wear ESD-preventive gloves or an ESD-preventive wrist strap and uniform when handling the
circuit board.
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Hold the interface module only by its edge when installing, observing or removing it. Do not touch
the components on it.
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Place the removed interface module on an ESD-preventive workbench with the component-side
facing upward or place it in an antistatic bag.
Wearing ESD-Preventive Wrist Strap
No ESD-preventive wrist strap is shipped with the access controller. You need to purchase one if
needed.
Follow these steps to use an ESD-preventive wrist strap:
1) Put on the ESD-preventive wrist strap.
2) Fasten the ESD-preventive wrist strap and verify that it makes good skin contact.
3) Lock the terminal of the alligator clip to the ESD-preventive wrist strap.
4) Attach the alligator clip to the rack where the access controller is installed.
5) Make sure that the rack has been well-grounded.
