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Browse Prior Art Database

MODULAR BACKPLANE/CARD-CAGE

IP.com Disclosure Number: IPCOM000009535D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2002-Aug-30
Document File: 3 page(s) / 134K

Publishing Venue

Motorola

Related People

Mark Summers: AUTHOR

Abstract

This paper describes a method of combining multiple backplanes together to build a system based on these combined backplanes. Combining multiple backplanes together inherently meant that bridge and host cards as well as associated cabling be utilized. This traditional method of interconnect- ing backplanes wastes valuable electronics packag- ing real estate. Secondly, the classical approach pre- sents problems with severe environments due to flopping cables and etc. The concept described in this paper solves these problems by interconnecting modular backplanes and card-cages.

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Developments Technical 0 M MOTOROLA

MODULAR BACKPLANE/CARD-CAGE

by Mark Summers

ABSTRACT

  This paper describes a method of combining multiple backplanes together to build a system based on these combined backplanes. Combining multiple backplanes together inherently meant that bridge and host cards as well as associated cabling be utilized. This traditional method of interconnect- ing backplanes wastes valuable electronics packag- ing real estate. Secondly, the classical approach pre- sents problems with severe environments due to flopping cables and etc. The concept described in this paper solves these problems by interconnecting modular backplanes and card-cages.

PROBLEMS WITH TRADITIONAL METHOD OF COMBINING BACKPLANES

  Figure 1 illustrates the traditional method of combining backplane busses together. The tradi- tional approach is to utilize bridge and host cards as well as associated cabling. This traditional method of interconnecting backplane busses is cumbersome and difficult to contain in a single system chassis due to the inherent wasting of valuable electronics packaging real estate.

  Secondly, the traditional approach presents problems with severe environments due to flopping cables and etc. The need for compact packaging of electronic computer and communication system equipment in severe environments, such as provided by industrial, transportation and military applica- tions, is becoming more commonplace. Hence, there exists a need to solve the problems listed herein.

PROBLEMS SOLVED BY MODULAR BACKPLANE/CARD-CAGE CONCEPT

  Figure 2 illustrates the concept described in this paper and hi-lights the modularity of the backplanes and the card-cages. This concept is based on a modular approach to interconnecting backplanes together.

  1. Each backplane is square or rectangular in shape with a bus connection on all four edges.

  2. Each backplane cont...