| 摘要 |
In a method for documenting the connections (6) between input and output ports (4,5) of a patch panel (1) wherein each port has a polling terminal (9, 10) associated with it, a polling signal is sent (7) in turn to each of the input polling terminals (9) of the input ports, and the output ports whose polling terminals (10) receive the signal are identified (8, 17, 14) as being connected to that input port. The sending circuitry (7) includes serial parallel shift registers (18 Fig 2 not shown) and the receiving circuitry (8) includes parallel to serial shift registers (19). <IMAGE>
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