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V
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Power off the Device before maintenance.
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Clean the dust off the circuit board, connectors and the cabinet to avoid the device short
circuiting due to dampness.
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Make sure the Device is properly grounded to avoid being damaged by static electricity or
induced voltage.
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Do not plug in or unplug RS-232, RS-485 and other ports while the power is on to avoid damage
to the ports.
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Keep the area around the Device cabinet well-ventilated.
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Regularly inspect and perform maintenance on the Device.
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