Browse Prior Art Database

Twinax Cabled Device Switch

IP.com Disclosure Number: IPCOM000046276D
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Cowen, NG: AUTHOR

Abstract

A switch is provided for switching a twinaxial cable device between two computer systems. In the past, the switch required that the device to be switched was at the end position of the cable and would not work when the device was connected in the cable through mode. The present switch is capable of switching a device connected to a computer system in either the cable through or non-cable through mode.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

Page 1 of 2

Twinax Cabled Device Switch

A switch is provided for switching a twinaxial cable device between two computer systems. In the past, the switch required that the device to be switched was at the end position of the cable and would not work when the device was connected in the cable through mode. The present switch is capable of switching a device connected to a computer system in either the cable through or non-cable through mode.

Switch 10 (Fig. 1) has two twinax sockets and one terminator for each system to be switched. The terminals of the two twinax sockets for each system are electrically connected to each other. Terminator switches 15 and 20 are double- pole switches. One side of switches 15 and 20 is connected to terminals of the twinax sockets. The other side of switches 15 and 20 is connected to load resistors 16 for switch 15 and 21 for switch 20. The load resistors 16 and 2l are, in turn, connected to electrical ground.

There is one twinax socket for connecting to the device that is to be switched between the two systems. The device twinax socket is connected to the common terminals of a double-pole, double-throw switch 30. One of the sides of switch 30 is connected to one set of twinax sockets, and the other side is connected to the other set of twinax sockets.

In Fig. 2, switch 10 is being used in the cable through mode for both system A and system B. Device A-2 is the device being switched between the systems. The cable from device A-1 is connected to the twinax IN socket for system A. A cable from twinax OUT socket system A is connected to device A-3...