The AF series CDNs are for unscreened, unbalanced cables with two, four, and eight conductors carrying low current. AF series CDNs have 2 mm shrouded banana sockets.
AF SeriesCoupling Decoupling Networks, commonly called CDN-AF in IEC-61000-4-6, conducted immunity standard to inject common mode disturbances to DUT (Device under test) with un-shielded lines. It also decouples these signals so as not to interfere with any auxiliary devices connected to the DUT.
The AF series CDNs are for Un-shielded cable applications and are 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 inappropriate to couple noise onto a cable with two lines using a CDN designed for three lines. In this case, the proper noise level will not be injected into each conductor.
Com-Power's several models matched the 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.
To calibrate AF series CDNs and to 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 they will be needed to calibrate the test levels before testing the actual product. Typical test levels given in IEC-61000-4-6 are 1, 3, and 10V RMS—the level setup diagram is shown in the product manual. Com-Power has put together a test systemincluding power amplifiers, directional couplers, attenuators, etc.