Browse Prior Art Database

Means for Switching 1000BaseTx/10BaseT Ethernet Port

IP.com Disclosure Number: IPCOM000123911D
Original Publication Date: 1999-Jul-01
Included in the Prior Art Database: 2005-Apr-05
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Yanagisawa, T: AUTHOR [+2]

Abstract

Disclosure is a means to selectively enable one of the multiple Ethernet port connected to single Ethernet signaling.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Means for Switching 1000BaseTx/10BaseT Ethernet Port

   Disclosure is a means to selectively enable one of the
multiple Ethernet port connected to single Ethernet signaling.

   Means of the Ethernet port selection consists of two new
logic elements, "secondary transformer unit placed toward to each
Ethernet port" and "silicon switch to select network signal" into
Ethernet port signaling between Ethernet port and primary side.

   Secondary transformer unit have bias voltage to shift
voltage range of differential signals to pass those signals through
silicon switching devices which are normally operational over 0V
range.  And this secondary transformer units also act as a
electrical.

   Silicon switch devices are inserted between two transformer
units, primary and secondary, at each ethernet port side.

   To select Ethernet port, either of the silicon switch is
in connected state and other switch blocks are kept in isolated
condition.