TEKBOX TBCDNE-M3 Coupling Decoupling Network Emission Instruction Manual

TEKBOX TBCDNE-M3 Coupling Decoupling Network Emission

Product Information

Specifications

• Compliance: TBCDNE-M3
• Maximum supply voltage: Not specified
• Maximum current: Not specified
• Frequency range: 30 MHz to 300 MHz
• Common mode impedance: Not specified
• Phase response: Not specified
• Differential mode impedance: Not specified
• Voltage Division Factor: Not specified
• AE to EUT decoupling: Not specified
• AE to RF output decoupling: Not specified
• RF output connector: Not specified
• EUT / AE connectors: Not specified
• Housing material: Not specified
• Dimensions: Not specified
• Weight: Not specified
• Included: Not specified
• Optional accessories: Not specified

Product Usage Instructions

Measurement Setups

Setup for emission measurement of an EUT with one cable;frequency range 30 MHz to 300 MHz

This setup involves connecting one cable to the EUT (Equipment Under Test) and using the CDNE for emission measurement within the frequency range of 30 MHz to 300 MHz.

Setup for emission measurement of an EUT with two cables connected to adjacent surfaces of the EUT; frequency range 30 MHz to 300 MHz

This setup requires connecting two cables to adjacent surfaces of the EUT and using the CDNE for emission measurement within the frequency range of 30 MHz to 300 MHz.

Setup for emission measurement of an EUT with two cables connected on the same surface of the EUT; frequency range 30 MHz to 300 MHz

In this setup, two cables are connected on the same surface of the EUT. The CDNE is used for emission measurement within the frequency range of 30 MHz to 300 MHz.

Example of arrangement of a luminaire during the radiated (OATS, SAC or FAR) disturbance measurement

This example shows the recommended arrangement of a luminaire during the radiated disturbance measurement using methods such as Open Area Test Site (OATS), Semi-Anechoic Chamber (SAC), or Fully Anechoic Room (FAR).

Example of arrangement of an internal module during the radiated (OATS, SAC or FAR) disturbance measurement

This example illustrates the suggested arrangement of an internal module during the radiated disturbance measurement using methods such as Open Area Test Site (OATS), Semi-Anechoic Chamber (SAC), or Fully Anechoic Room (FAR).

Example of arrangement of an external module during the radiated (OATS, SAC or FAR) disturbance measurement
This example demonstrates the recommended arrangement of an external module during the radiated disturbance measurement using methods such as Open Area Test Site (OATS), Semi-Anechoic Chamber (SAC), or Fully Anechoic Room (FAR).

FAQ

Q: What is the compliance rating of the CDNE?
A: The CDNE is compliant with TBCDNE-M3 standards.

Q: What is the frequency range of the CDNE?
A: The CDNE operates within the frequency range of 30 MHz to 300 MHz.

Q: Are the specifications for maximum supply voltage and maximum current available?
A: Unfortunately, the user manual does not specify the maximum supply voltage and maximum current for the CDNE.

TBCDNE-M3
Coupling Decoupling Network Emission (CDNE)

Introduction

CDNEs are a type of Coupling Decoupling Networks used for an alternative technique of measuring radiated emission of lighting equipment in accordance with the CISPR 15 (EN55015) standard.
It avoids the need for emission measurements on Open Area Test Sites. This method was established in CISPR 15 edition 9 as an acceptable alternative to a traditional OATS test configuration that required antennas and calibrated test sites. It is specified for the frequency range from 30 MHz to 300 MHz. The CDNE method and the associated limits up to 300 MHz can be only applied for EUTs with clock frequencies below or equal to 30 MHz. In such a case, the product is deemed to comply with the requirements between 300 MHz and 1000 MHz.
When compared to CDNs, CDNEs are substantially more stringently specified, with reduced common mode (CM) impedance tolerance and additional parameters for CM phase tolerance and differential mode impedance equal to 100 Ω. A minimum 20 dB for longitudinal conversion loss shall prevent symmetrical voltage influencing measurement results.

CISPR 15 edition 9 also specifies that the mains supply cable of the EUT should be terminated with a CDNE positioned on the reference-ground plane for the OATS, SAC or FAR measurement method.
Unlike CDNs, CDNEs are not appropriate for immunity measurements The Tekbox TBCDNE-M3 is designed for measuring EUTs with PE, Neutral, and Line connections. Tekbox offers the TBCDNE-M2 model for measuring EUTs that do not have a PE (Earth) connection.

Specifications

• Compliance: CISPR 15 (IEC / EN 55015) Edition 9, CISPR 16-1-2, CISPR 16-2-1
• Maximum supply voltage: 300V AC, 600V DC
• Maximum current: 16A
• Frequency range: 30 MHz – 300 MHz
• Common mode impedance: 150 Ω +10 / – 20 Ω (EUT port)
• Phase response: 0° ± 25° (EUT port)
• Differential mode impedance: 100 Ω ± 20 Ω (EUT port)
• Voltage Division Factor: 20 dB ± 1.5 dB (EUT to RF output)
• AE to EUT decoupling: > 30 dB
• AE to RF output decoupling: > 30 dB
• RF output connector: N – female
• EUT / AE connectors: 4 mm banana safety jacks, 4 mm slots in base plate for GND connection
• Housing material: powder coated aluminium, stainless steel base plate
• Dimensions: 300 x 150 x 150 mm
• Weight: ca. 2.5 kg
• Included: NIST traceable calibration data
• Optional accessories: Adapter panel with shorting bar and N-connector 50 Ω to 150 Ω adapter panel for VDF measurement/calibration OSL adapters for common mode impedance measurement/calibration Balun and OSL adapters for differential mode impedance measurement/calibration

Informative schematic

CDNE-M3, informative schematic

Typ. Voltage Division Factor

Typ. EUT common mode impedance

Typ. EUT differential mode impedance

Typ. EUT common mode phase response

Typ. Decoupling, AE to EUT

Typ. Decoupling, AE to RF

Measurement Setups

When the CDNE method is used and all clock frequencies of the EUT are below or equal to 30 MHz, then the product is deemed to comply with the requirements between 300 MHz and 1 000 MHz if the emissions comply with the limits in the 30 MHz to 300 MHz frequency range as specified in CISPR 15 (IEC / EN 55015). If the CDNE test fails, then any of the other methods and corresponding limits specified in CISPR 15 can still be applied For the CDNE method, the largest dimensions of the EUT are 3 m x 1 m x 1 m (l x w x h). The CDNE restrictions apply to the EUT only, and not the wiring or the total dimension of the system under test. When using the CDNE method to show compliance to 1 GHz, the test report shall include a statement (from the manufacturer) that the clock frequency is below 30 MHz.

Setup for emission measurement of an EUT with one cable; frequency range 30 MHz to 300 MHz

Setup for emission measurement of an EUT with two cables connected to adjacent surfaces of the EUT; frequency range 30 MHz to 300 MHz

Setup for emission measurement of an EUT with two cables connected on the same surface of the EUT; frequency range 30 MHz to 300 MHz

Example of arrangement of a luminaire during the radiated (OATS, SAC or FAR) disturbance measurement

Example of arrangement of an internal module during the radiated (OATS, SAC or FAR) disturbance measurement

Example of arrangement of an external module during the radiated (OATS, SAC or FAR) disturbance measurement

References

• CISPR 16-1-2 Edition 2.0 2014-03
• CISPR 16-2-1 CISPR 16-2-1 Edition 3.0 2014-02
• CISPR 15 Edition 9 (IEC / EN 55015:2019+A11:2020)

Ordering Information

measurement/calibration

History

www.tekbox.com
TekBox Digital Solutions Vietnam Pte. Ltd.
Factory 4, F4, Lot I-3B-1, Saigon Hi-Tech Park, Tan Phu Ward, District 9, Ho Chi Minh City, Vietnam

References

• Tekbox Digital Solutions |

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