High bit rate ethernet connection

Details High bit rate ethernet connection High bit rate ethernet connection

1993-09-23

1996-08-06

Geckil, Mehmet B.

Boots, shoes, and leggings

395800, 364DIG1, 36424294, 3642399, G06F 1300

Patent

active

055443230

ABSTRACT:
In a fast Ethernet, each station is connected to the hub by four unshielded twisted pairs. A first pair is transmit only for the station and receive only for the hub, a second pair is transmit only for the hub and receive only for the station, and the third and fourth pairs are bidirectional. Both the station and the hub use their transmit only and the bidirectional pairs for data transmission and their receive only pair for collision detection.

REFERENCES:
patent: 4639910 (1987-01-01), Toegel et al.
patent: 4740992 (1988-04-01), Havens et al.
patent: 4780814 (1988-10-01), Hayek
patent: 4809361 (1989-02-01), Okada et al.
patent: 4864303 (1989-09-01), Ofek
patent: 5189414 (1993-02-01), Tawara
patent: 5434861 (1995-07-01), Pritty et al.
J. R. Rivers "PMD Prop. Util. Four Category 3 UTP Wirepairs, 5B6B Encoding and Low Freq. Coll. Det." IEEE 802.3 Higher Sp. Stud. Grp, Wakefield, MA, May 1993.
H. Johnson "CSMA/CD Using 2 or More Pairs" 802.3 Higher Speed Study Group, Wakefield, MA, May, 1993.

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