The AF series CDNs are for unscreened unbalanced cables with two, four and eight conductors carrying low current. AF series CDNs are supplied 2 mm shrouded banana sockets.
AF SeriesCoupling Decoupling Networks, commonly called CDN-AF in IEC-61000-4-6 conducted immunity standard serve the purpose of injecting common mode disturbances to DUT (Device under test) with un-shielded lines. It also decouples these signals so that it does not interfere with any auxiliary devices connected to the DUT.
The AF series CDNsare for Un-shielded cable applications and is specific to the number of conductors within the cable used by the DUT because the signal is coupled to each line within the cable. For example, it is not appropriate to couple noise onto a cable with 2 lines using a CDN that is designed for 3 lines. The proper noise level will not be injected into each conductor.
Com-Power several models matched to number of conductors within the cable. See the description of each model below.
All Com-Power CDN-AF series models have a frequency range of 150 kHz to 230 MHz. All the AF series CDNs have 2 mm shrouded banana sockets for DUT connection.
In order to calibrate AF series CDNs and set the test levels you require specific shorting adapters and a set of 150Ω to 50Ω adapters (ADA-515-X) are required. We recommend purchasing these adapters from Com-Power since theywill be needed to calibrate the test levels prior testing the actual product. Typical test levels given in IEC-61000-4-6 are1, 3 and 10V RMS. The level setup diagram in given the product manual. Com-Power has put together a test systemincluding power amplifiers, directional couplers, attenuator, etc.