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Tudor House, Grammar School Road, North Walsham, Norfolk, NR28 9JH, UK

3 Core CDNE (Coupling Decoupling Network)

CDNEs for CISPR15/16 testing – 3 Core Cable Emissions

CDNEs are based on the CDN as specified in IEC61000-4-6 (Conducted RF Immunity test). In this test, the CDN is used for the coupling of RF onto a cable. In principle, the CDN can be used in reverse, ie coupling any RF on the cable out to an analyser.   In an earlier version of EN 55015, these CDNs were specified as suitable for measuring emissions. However, the current version of the standard specifies a CDNE which is essentially a CDN refined to deliver higher accuracy particularly at higher frequencies.

The CDNE M3 is designed for 3 core cable. For 2 core cable see our CDNE M2.

cdne-m3
  • Frequency range: 30 MHz – 300 MHz Frequency range:
  • Line type: 3 unshielded mains lines~
  • Connector for EUT and AE: 3 x 4 mm safety laboratory jacks
  • Measurement port: 50 Ω BNC
  • Max. voltage line to ground: 300 V AC
  • Max voltage line to line: 300 VDC
  • 520 VAC 50/60 Hz
  • Max. current: 10 A
  • Max. EUT RF voltage: 140 dBμV
  • Max. voltage measuring port: <10 V
  • Ground connection: 4 mm laboratory jack and M4 screw at AE side
  • Dimensions W x H x D: 104 mm x 104 mm x 127 mm
  • Weight: ~750 g
  • Circuit: CISPR/A/944/CD, Fig. J2
  • Acc. to standard: CISPR 15/ EN 55015

Compliance

The these CDNEs are 100% compliant with the specifications detailed in CISPR15, ed 9, CISPR16-1-2 and CISPR16-2-1. Frequency range is 30MHz to 300MHz

Safety

These CDNEs are fitted with shrouded 4mm safety connectors, easy to connect and entirely safe.

Integrity

These CDNEs offer direct connection from the cable under test to the receiver/analyser. They avoid all the uncertainties related to the use of OATS. Measurements are consistent and repeatable.

EUT AE Isolation

CDNE M3 EUT AE Isolation Graph

Voltage Division Factor

CDNE M3 VOLTAGE DIVISION FACTOR

Impedance (Phase)

CDNE M3 IMPEDANCE (PHASE)

Impedance

CDNE M3 Impedance Graph