H3C Voice Gateway H3C VG 10-10 Safety Manual

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H3C Voice Gateway H3C VG 10-10 Safety Manual Manual pdf 17 page image

Compliance and Safety ManualH3C VG 10-10/10-11 Voice Gateway Chapter 3 Safety Information3-5On a thunderstorm day,the electromagnetic field generated in the thunderstorm areamay cause damage to electronic parts. In order to prevent the equipment from beingdamaged by lightning, proper grounding is required.3.2.5 ElectrostaticCaution:The electrostatic(static electricity) generated by human body may damage theelectrostatic-sensitive components on the circuit board, such as large-scale integratedcircuit (LIC).z In the case of human body moving, clothes friction, friction between shoes andground, holding ordinary plastic in hand, the human body will generate a staticelectromagnetic field that will remain with the human body for a long time.z Before touching the equipment, hand-holding, circuit boards, or ASICs, agrounded electrostatic discharge(ESD) wrist strap should be worn to prevent thesensitive components from being damage by the electrostatic in human body.Figure 3-1 Diagram of wearing electrostatic protection wrist strap