公开(公告)号：JP2001023455A

公开(公告)日：2001-01-26

申请号：JP2000165261

申请日：2000-06-02

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DONNER DARYLE PAT ,  FRIESEN HAROLD W ,  HAWKINS DAVID R ,  JACKSON ROBERT HENRY ,  ZERBS STEPHEN TAYLOR

IPC: H01B11/04 ,  H01B11/02

Abstract: PROBLEM TO BE SOLVED: To provide a cable having a comparatively small cross-talk when the bit transmission speed is high for a relatively long distance. SOLUTION: This local area network cable 17 capable of making high-speed signal transmission has a plurality of twist pairs 12, 13, 14, 16 consisting of conductors encapsulated in a sheath. Each twist pair has a different number of twists from the others, and at least one pair has a twist direction different from the others, i.e. it can have a clockwise twist in the case where the other pairs have counterclockwise twist. If the cable is of four-pair type, two pairs having different number of twists are given a clockwise twist while the other pairs are given a counterclockwise twist.

公开(公告)号：CA2309418A1

公开(公告)日：2000-12-03

申请号：CA2309418

申请日：2000-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JACKSON ROBERT HENRY ,  HAWKINS DAVID R ,  ZERBS STEPHEN TAYLOR ,  FRIESEN HAROLD WAYNE ,  DONNER DARYLE PAT

IPC: H01B11/04 ,  H01B11/02

Abstract: A local area network cable capable of high speed signal transmission has a plurality of twisted pairs of conductors enclosed within a jacket. Each of the twisted pairs has a different twist frequency than any of the other pairs, and at least one of the pairs has a direction of twist that is different from the other twisted pairs, that is, it may have a right hand twist where the other pairs have a left hand twist. In a four pair cable, two of the pairs, of different twist frequency, have imparted thereto a right hand twist, and two of the pairs have a left hand twist.