Avoiding misleading results of conducted immunity testing on data interfaces of telecommunication equipment

Failures during conducted immunity testing can sometimes be eliminated when the EUT is properly exercised. Much of today´s telecommunication equipment possess a large capacity for interconnections and bandwidth. Support equipment needed for simulating a telecommunication network is expensive and sometimes unpractical for testing. Improperly simulating an EUT´s intended environment and application can lead to inaccurate susceptibility to conducted common mode noise. This paper addresses the pitfalls associated with oversimplification of an EUT´s operating environment.