TEST APPARATUS

摘要

The present invention relates to a test apparatus for a broadband telecommunication network. The apparatus comprises an electrical DC power source having a first and a second electrical connection. The test apparatus further comprises a first electrical circuit comprising a first and a second electrical circuit input and a first and a second electrical circuit output. The first and second electrical circuit input are electrically connected to the first and the second electrical connection of the electrical DC power source respectively. Additionally electrical connection is established from the first electrical circuit input to the first electrical circuit output via a first inductor having a first inductance and electrical connection is established from the second electrical circuit input to the second electrical circuit output via a second inductor having a second inductance. A first impedance is transformer coupled to the first inductor. A first test apparatus outlet is electrically connected to the first electrical circuit outlet and a second test apparatus outlet is electrically connected to the second electrical circuit outlet. The first test apparatus outlet and the second test apparatus outlet are adapted for establishing electrical contact to a device to be tested.