Patent ID: 6385252
Filing Date: 2002-05-07
Classification: H04B

Abstract:
In a digital communication system having a pair of digital signal processing units, a high speed connection interface for providing bi-directional digital signal communications between said signal processing units, comprising:a multiple pin connector including disconnectable header and receptacle portions; a first set of signal-carrying wire pairs providing communication between said header and one of said signal processing units; a second set of signal-carrying wire pairs providing communication between said receptacle and the other of said signal processing units; said first and second wire pair sets each including a first wire pair subset carrying digital signals in a first direction between said signal processing units and a second wire pair subset carrying digital signals in a second direction between said signal processing units which is opposite to said first direction; said first and second wire pair sets being attached to said connector such that adjacent signal-carrying pin pairs of said connector carry only digital signals travelling in the same direction, and such that connector pin pairs carrying digital signals travelling in opposite directions are not adjacent to each other; and a pair of impedance matching units each of which is associated with a respective one of said signal processing units, each impedance matching unit including an impedance matching circuit for each of the wire pairs in one of said wire pair sets, and each impedance matching circuit having a first side connected to a respective one of said signal processing units and a second side connected to one of said wire pairs at an impedance that substantially matches the wire pair impedance.