Patent ID: 6466989
Filing Date: 2002-10-15
Classification: H01R

Abstract:
An automatic wiring network connection device for connecting to a network cable and then connecting to a remote system, comprising:a switching array having a fist group of terminals and a second group of terminals, wherein the first group of the terminals are connected to the network cable and the network cable has four signal wires, each of the signal wires is separately connected to one of the terminals in the first group; an interface circuit having a positive receiving terminal, a negative receiving terminal, a positive transmission terminal and a negative transmission terminal with each of these terminals separately connected to one of the terminals in the second group within the switching array; and a controlling circuit coupled to the interface circuit and the switching array for controlling a connection from the first group of the terminals to the second group of the terminals in the switching array for correctly transmitting data to and receiving data from the network cable via the interface circuit, wherein when the network connection device is connected to the network cable, the controlling circuit detects out two signal wires having preamble field signals in the four signal wires of the network cable and connects the selected two signal wires to the positive receiving terminal and the negative receiving terminal of the interface circuit, wherein a connection polarity is adjusted to properly reading the preamble field signals, and after the positive receiving terminal and the negative receiving terminal are correctly connected, the other two unselected signal wires of the four signal wires are connected to the positive transmission terminal and the negative transmission terminal, wherein the controlling circuit sends out a checking data packet through the transmission terminals and receives a response of the checking data packet from the receiving terminals, and a connection polarity of the transmission terminals is adjusted to properly receive an acknowledging response of the checking data packet without error.