ESD and EMI

Description

Cisco IIT essentials (Chapter 2 - Lab Procedures and Tool Use) Mind Map on ESD and EMI, created by groche on 13/03/2014.
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Mind Map by groche, updated more than 1 year ago
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Resource summary

ESD and EMI
  1. Electrostatic discharge (ESD)
    1. static electricity is the buildup of an electric charge resting on a surface
      1. ESD occurs when this buildup jumps to a component and causes damage
        1. at least 3,000 volts of static electricity must build up before a person can feel ESD
          1. how to prevent ESD damage
            1. keep all components in antistatic bags until you are ready to install them
              1. use grounded mats on workbenches
                1. use grounded floor mats in work areas
                  1. use antistatic wrist straps when working on computers
                2. Electromagnetic interference (EMI)
                  1. it is the intrusion of outside electromagnetic signals in a transmission media, such as copper cabling
                    1. in a network environment, EMI distorts the signals so that the receiving devices have difficulty interpreting them
                      1. sources of EMI
                        1. any source designed to generate electromagnetic energy
                          1. man-made sources like power lines or motors
                            1. natural events such as electrical storms, or solar and interstellar radiations
                          2. climate
                            1. if the environment temperature is too high, equipment can overheat
                              1. if the humidity level is too low, the chance of ESD increases
                                1. if the humidity level is too high, equipment can suffer from moisture damage
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