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by Haefely Hipotronics 

Catalog ID: DEC 7

Decoupling Network for Asymmetrical Data and Control Lines

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The DEC 7 is used for decoupling auxiliary equipment from an EUT tested with either 1,2/50ms-8/20ms combination wave impulses or ring wave 100kHz impulses up to 6.6kV peak. It is used to decouple unshielded asymmetrical control and data lines according IEC/EN standards. Up to 4 wires can be tested simultaneously. To obtain maximum flexibility/strong only decoupling and protection elements are included in the DEC 7. Coupling circuits, which depends on the EUT to be tested, can be placed separately in the test setup. Manual coupling selection of the protection elements for best protection of the auxiliary equipment. Default protection elements are varistors and breakdown avalanche diodes (ABDs). With such elements the capacitive load to the EUT lines is small. The decoupling elements can be selected easily. It is also possible to test without any protection elements.

  • 1,2/50us-8/20us combination wave impulses
  • 100kHz ring wave impulses
  • Breakdown avalanche diodes and varistors as protection
  • Decoupling inductors 20mH not compensated
  • Signal Bandwidth up to some 100Hz
  • Up to 4 wires can be tested

Safe and Easy - All the sockets are safety banana plugs to ensure maximum safety to the user. The selected protection element can be seen at a glimpse.;Sturdy and Reliable - Careful component selection ensures that the DEC 7 will continue to operate under the most strenuous testing regimen.;Report Generation - The unit controller can automatically generate test reports without a computer. Add WinFEAT&R control and reporting software on a host PC to collect and collate data in any format you like.


  • Unshielded asymmetrical control and data lines
  • Industrial and residential equipment
  • Other international requirements for surge testing asymmetrical data- and control lines