Haefely DEC 7 Decoupling Network Asymmetrical Data & Control Lines

• Description
• Features
• Specifications

Description

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 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.

The DEC 7 can be used together with the coupling networks PCD 126 and IP6.2. These provide all the coupling elements as required to perform IEC, ANSI and EN testing.

Features

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

Applications

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