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CDN FOR EMI CONDUCTED IMMUNINITY TESTING Coupling / Decoupling Networks (CDN) Coupling / Decoupling Networks (CDN) are for testing from 150 kHz - 80 MHz according to the EN 61000-4-6 standard for immunity to conducted disturbance induced by radio frequency fields. As the name implies the CDNs has both coupling and decoupling networks. The coupling network delivers injected RF common mode current disturbance signals through the various conductors to the equipment under test (EUT). The decoupling networks are used insure that the disturbing signals injected on the signal or power line of the EUT by the coupling networks does not interfere with any the auxiliary equipment (AE) connected to the EUT. Each CDN contains integrated direct capacitive coupling along with the high impedance choke for inductive decoupling. The disturbing signal can be injected on signal lines and power line of an EUT by using the appropriate CDN described below. The CDN setup must be calibrated to establish the drive table. Please use the appropriate calibration components for the CDN. For each CDN you will need
M series CDNs for powerline conductors The M series CDNs are for injecting common mode current disturbance on to the powerline conductor of the equipment under test. The CDN to be used is determined by the number of wires in the conductor. The standard M series CDNs have a current rating of 25 Amps.
C series CDNs for shielded coax cables The C series CDNs are for injecting disturbing signals on to 50 Ohm (CDN-C50) and 75 Ohm (CDN-C75) shielded coax cables. These CDN have BNC connectors for EUT and AE connections.
AF series CDNs for unshielded signal cables The AF series CDNs are for unshielded cables with single or multiple conductors carrying low current. AF series CDNs are supplied with a professional audio connectors.
S Series CDNs for shielded signal cables The S series CDNs are for shielded cables with single or multiple conductors. These CDNs are supplied with proffessional audio, D type and Centronics connectors.
T series CDNs for unshielded balanced pairs The T series CDNs are for cables with unshielded balanced conductor pairs typically found in ISDN, DSL and 10/100 baset-T data transfer applications.
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| Last Updated: 12/12/2007 |
114 Olinda Drive, Brea, California 92823, U.S.A |
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| Copyright
Com-Power Corporation 2004 The information presented on this web site is intended to be accurate and authoritative information on the subject matter covered. It is distributed with the understanding Com-Power assumes no liability whatsoever in connection with its use. |
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