| 摘要 |
<p>A switching unit (100, 800) for switching-in and switching-off telecommunications and/or data services in a telecommunications and/or data network to a plurality of subscribers, the switching unit (100, 800) comprising a switching matrix (200, 300) adapted to be connected to a main cable (120) and to a distribution cable (122) and further comprising a first filter (104) and a second filter (106), a first and a second multiplexers (108, 110) connected respectively to said first (104) and second filters (106), a test signal generator (112) connected to the first multiplexer (108) and a test signal monitor (114) connected to the second multiplexer (110) and a control and analysis unit (116).</p> |
