Browse Prior Art Database

Host Guest Connector Cards for Personal Computers

IP.com Disclosure Number: IPCOM000109961D
Original Publication Date: 1992-Oct-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Curtis, SA: AUTHOR [+4]

Abstract

Disclosed is a method for implementing a feature card that allows a card to be plugged directly into an I/O expansion slot available in PC style machines, or as a piggy-back card attached to a card already plugged into an expansion slot.

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

Host Guest Connector Cards for Personal Computers

       Disclosed is a method for implementing a feature card
that allows a card to be plugged directly into an I/O expansion slot
available in PC style machines, or as a piggy-back card attached to a
card already plugged into an expansion slot.

      Fig. 1 depicts the Host and Guest cards design that allows an
adapter to be either plugged into another adapter (HOST) to form a
multi-function adapter, or to be plugged directly into the I/O
expansion channel (Fig. 1c.).

      Any adapter can be designed in the manner described herein with
the addition of the Host/Guest connector (B and E in Fig. 1).  The
only limitation as to the type of cards designed is the limitation
imposed on the spacing between adapters as well as the physical size
and power allowed per slot.

      The Host connector on the Guest card and the Guest connector on
the Host card are wired with the same signals as defined on the gold
tabs.  The Guest card is wired to accept its inputs (and outputs)
from either the Host connector or the I/O tabs.

      Some of the items that must be analyzed on a per-design basis
are:
      o  Amount of loading per signal line when both a Host and a
Guest are plugged into one I/O slot
      o  Thermal dissipation of both Host/Guest pair
      o  Power requirements of the Host/Guest pair
      o  Height of Components on Host card and Guest Card