Coupling Decoupling Networks (CDN's)

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The EMC Shop stocks coupling decoupling networks (CDN's) for most power and data line configurations. CDN's are quintessential for performing EMC testing. In short, conducted immunity coupling networks ensure electrical transients are sent down the path of the line to the EUT. Decoupling that signal from entering the rest of the network is done in different ways. In radiated immunity, you are coupling wireless signals over the air through the antenna. It may be appropriate to use a decoupling clamp on lines as they exit the test chamber.

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Coupling/Decoupling networks are built in to most current generators for single phase power EUT. Coupling networks are typically easy to set up for conducted immunity (surge, EFT, PQF). RF conduted immunity requires an assortment of couplers and without proper setup, are easy to blow up.

Type's of Coupling Decoupling Networks

CDN's for Surge/EFT Immunity: Power Lines and Data Lines
RF CDN's for Conducted Immunity: Power Lines and Data Lines: Used for just decoupling as well
EM Clamps: Inject and decouple RF disturbances
Absorbing Clamps: Just for decoupling RF disturbances on cables (Needed for BCI Testing)
Bulk Current Injection Probes: Used for just coupling RF noise

Coupling/decoupling networks for RF conducted immunity have a port top-side where your inject the RF signal, an EUT side where the RF disturbances are directed to power or data lines. The decoupling path exit the AE Side and is generally safe from disturbances.

Coupling Decoupling Networks (CDN's) Categories

Injection Transformers

Coupling Decoupling Networks (CDN's) Test Equipment, Systems & Solutions

CDN 418CAN Data & Control Line Coupling Decoupling Network

SKU: 55116

Coupled Waveform: Damping oscillation wave at 100 kHz/1 MHz

Pulse Voltage: ≥3 kV

Coupling Mode: CAN H+CAN L simultaneous ground/LIN ground

Communication Frequency: <5 MHz

Data Rate: CAN 10MBit/s, LIN 100 KBit/s

Working Voltage: ≤12 V DC

Working Current: Maximum 2 A

EMC Standard: EN/IEC 61000-4-18

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EM Test CNV 508 8-Way Surge Coupling Network

SKU: 5575

Applications: Data lines Unshielded, Unsymmetrical Surge Immunity

Test Standards: IEC 61000-4-5

Typically In Stock

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3ctest CDN 405T8 Surge Coupler for High Speed Data Lines

SKU: 6911

Application/Test Type: Surge Immunity, Conducted Susceptibility

Test Standards: IEC 61000-4-5

Data Transmission Rates: 1,000 MBit/s

PoE: Yes

Max Surge Voltage: 5 kV

Typically In Stock

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CDN-M3-16A Coupling & Decoupling Network

SKU: 12313

Cost New:

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Price Now:

$1,575.00

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AR IT2002 Remote Switchable Impedance Transformer

SKU: 11751

Input Impedance: 50 Ohms

Output Impedance: 50, 100, 200, 450, 900, 1800 Ohms

Frequency Range: 100 kHz - 3 MHz

RF Connectors: Input N, Output High Voltage Terminals

Cost New:

Was:

Price Now:

$3,500.00

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Teseq INA 6502 PQF/Dip Transformer for NSG 3060

SKU: 3955

Test Standards: IEC/EN 61000-4-11

Compatible Generators: Teseq NSG 3060, Teseq NSG 3040

Applications: Conducted Immunity

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Price Now:

$549.00

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