| 摘要 |
A protecting device for electric and electronic devices and appliances is provided. The device includes a housing which is mounted in combination: a signal input connection to the EMF surge protection unit (1), a protected output signal connection (2) from the EMF surge protection unit to the users at the protected zone, a logic unit (3) of decision for the signal galvanic connection or attenuation level by a switch (8), an assess Logic unit (6) adopted to evaluate the signal status or the signal usage status, the switch (8) for galvanic connection/attenuation level change from the incoming signal and protected zone signal and logic unit for the assessment of the input signal, define the conditions to pass a request to change mode.
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