Patent ID: 7039711

Claim:
A network apparatus for configuring connection polarities to transmit and receive network signals in a network, comprising: a plural order random number generator for generating a plurality of random numbers; and a plurality of connectors each of which is connected to a corresponding network cable, wherein each of said plurality of connectors comprises: a signal detector for detecting a signal from said corresponding network cable; and a polarity configurer coupled between said signal detector and said random number generator for enabling said network apparatus to operate in either a medium-dependent interface test mode or a medium-dependent interface crossover test mode, detecting a network signal within a first predetermined time period, selectively enabling said network apparatus to operate in either said medium-dependent interface test mode or said medium-dependent interface crossover test mode in accordance with a random number if failing to detecting a network signal within said first predetermined time period, enabling said network apparatus to stay at a stable state for at least a second predetermined time period if a network signal is detected or a link is established within said first predetermined time period, and enabling said network apparatus to keep staying at said stable state if a network signal is continuously received or a link is established.