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Применения > > EMC Compliant RS-485 Transceiver Protection Circuits

EMC Compliant RS-485 Transceiver Protection Circuits (CN0313)

The circuits shown in Figure 1 demonstrate proven and tested electromagnetic compatibility (EMC) compliant solutions for three protection levels for popular RS-485 communication ports using the ADM3485E transceiver. Each solution was tested and characterized to ensure that the dynamic interaction between the transceiver and the protection circuit components functions correctly together to protect against the electrostatic discharge (ESD), electrical fast transients (EFT), and surge immunity specified in IEC 61000-4-2, IEC 61000-4-4, and IEC 61000-4-5, respectively. The circuits offer proven protection for RS-485 interfaces using the ADM3485E to the ESD, EFT, and surge levels often encountered in harsh environments.


Figure 1. Three EMC Compliant ADM3485E Protection Circuits (Simplified Schematic, All Connections Not Shown)

Возможности

  • Robust EMC compliant RS-485 transceiver interface
  • Tested to specific ESD, EFT, and surge levels

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EMC Compliant RS-485 Transceiver Protection Circuits  CN0313

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