CDN AF Types

For immunity testing according to IEC/EN 61000-4-6

CDN-AF type networks are required for coupling and decoupling disturbing signals to an unscreened cable with non-balanced lines.

TECHNICAL SPECIFICATIONS:
Frequency range (RF In) (10 kHz) 150 kHz – 80 MHz / 230 MHz (300 MHz)
Power Rating (RF In) 6 W (continuous)
Maximum Input Voltage AC 100 V
Maximum Input Voltage DC 150 V
Current Rating (AE – EUT) 1 A
Connectors Terminal block; safety banana jack
ORDERING INFORMATION:
Type Description
AF2 Terminal block 2 pole, 150 kHz – 300 MHz
AF2-MC 4mm safety banana jack, 150 kHz – 300 MHz
AF2-N 4mm safety banana jack, 10 kHz – 230 MHz (NAMUR)
AF3 Terminal block 3 pole, 150 kHz – 230 MHz
AF3-MC 4mm safety banana jack, 150 kHz – 230 MHz
AF3-N 4mm safety banana jack, 10 kHz – 230 MHz (NAMUR)
AF4 Terminal block 4 pole, 150 kHz – 230 MHz
AF4-MC 4mm safety banana jack, 150 kHz – 230 MHz
AF4-N 4mm safety banana jack, 10 kHz – 80 MHz (NAMUR)
AF5  Terminal block 5 pole, 150 kHz – 230 MHz
AF5-MC 4mm safety banana jack, 150 kHz – 230 MHz
AF5-N 4mm safety banana jack, 10 kHz – 230 MHz (NAMUR)
AF8 Terminal block 8 pole, 150 kHz – 230 MHz
AF8-MC 4mm safety banana jack, 150 kHz – 80 MHz
AF8-DS-N 9-pin Sub-D, 10 kHz – 230 MHz (NAMUR)
AF9 Terminal block 9 pole, 150 kHz – 230 MHz
AF10 Terminal block 10 pole, 150 kHz – 230 MHz
AF12 15 pole Sub-D, 150 kHz – 230 MHz

IMMUNITY TESTING:
CDNs are the preferred coupling and decoupling devices, for reasons of test reproducibility and protection of the auxiliary equipment (AE). CDNs shall be used for appropriate coupling of the disturbing signal to the various cables connected to the equipment under test (EUT) and for preventing applied test signals from affecting other devices, equipment and systems that are not under test.

EMISSION TESTING:
Some selected CDNs meet the requirements of CISPR 15 and CISPR 22 for emission testing in the extended frequency range of 80 MHz to 300 MHz. Along with the common mode impedance a curve of the voltage division factor over the frequency range of up to 300 MHz is supplied with these CDNs. Currently the types CDN-AF2, CDN-T2, CDN-M2, CDN-M3 and CDN-M2+3 meet the requirements of CISPR 15 / CISPR 22.

CALIBRATION:
In order to calibrate a CDN you require:
– specific calibration adapter
– mounting bracket
– 150 Ω to 50 Ω adapter
For the first CDN a mounting bracket and a 150 Ω to 50 Ω adapter need to be acquired. For each additional CDN only a specific calibration adapter needs to be acquired.

 

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