Internet
              |
              |
          +--------+
          |DSL     |
          |Splitter|
          +--------+
              |
              |
          +------------------+
          |Router + DSL-Modem|
          +------------------+
             |   |
             |   +--------+
             |            |
          +------+     +------+
          | PC1  |     | PC2  |
          +------+     +------+