Compliance and Safety Manual
H3C VG 20-16/20-32 Voice Gateway
Chapter 3 Safety Information
3-6
On a thunderstorm day,the electromagnetic field generated in the thunderstorm area
may cause damage to electronic parts. In order to prevent the equipment from being
damaged by lightning, proper grounding is required.
3.2.6 Electrostatic
Caution:
The electrostatic(static electricity) generated by human body may damage the
electrostatic-sensitive components on the circuit board, such as large-scale integrated
circuit (LIC).
z
In the case of human body moving, clothes friction, friction between shoes and
ground, holding ordinary plastic in hand, the human body will generate a static
electromagnetic field that will remain with the human body for a long time.
z
Before touching the equipment, hand-holding, circuit boards, or ASICs, a
grounded electrostatic discharge(ESD) wrist strap should be worn to prevent the
sensitive components from being damage by the electrostatic in human body.
Figure 3-1
Diagram of wearing electrostatic protection wrist strap
