Multiple-port gigabit ethernet distribution switch

Details Multiple-port gigabit ethernet distribution switch Multiple-port gigabit ethernet distribution switch

2002-03-05

2003-11-11

Trieu, Van (Department: 2632)

Communications: electrical

Systems

Selsyn type

C340S855400, C340S855800

Reexamination Certificate

active

06646546

ABSTRACT:

CROSS-REFERENCES TO RELATED APPLICATIONS
NOT APPLICABLE
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
NOT APPLICABLE
REFERENCE TO A “SEQUENCE LISTING,” A TABLE, OR A COMPUTER PROGRAM LISTING APPENDIX SUBMITTED ON A COMPACT DISK
NOT APPLICABLE
BACKGROUND OF THE INVENTION
This invention relates to digital data communications over distance-limited wire media. In particular, this invention relates to an apparatus for managing and distributing Ethernet signals in an outdoor environment.
SUMMARY OF THE INVENTION
According to the invention, an apparatus is provided for deployment in an outdoor environment for managing and distributing Ethernet-type data communication signals. The apparatus includes electrical isolation means for various electromagnetic effects and a high speed pulse reshaper and repeater. The isolation means includes low capacitance electric pulse suppression means so that maximum signal distance can be achieved without loss of usable pulse shape and isolation transformers on differential signal pairs that retain magnetization at elevated temperatures so that signals are not blocked. As a further feature, a management protocol is included whereby the type of signals can be autonomously distinguished, managed, secured and redirected, thus allowing the apparatus to be operated with compatible devices in a daisy-chained and star switch fabric. The invention will be better understood upon reference to the following detailed description in connection with the accompanying drawings.


REFERENCES:
patent: 4479228 (1984-10-01), Crane
patent: 6477200 (2002-11-01), Agazzi et al.
patent: 6535983 (2003-03-01), McCormack et al.
patent: 6563816 (2003-05-01), Nodoushani et al.
patent: 6571181 (2003-05-01), Rakshani et al.

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