Browse Prior Art Database

Flex Cable Assembly for Card Tailgate I/O Connection

IP.com Disclosure Number: IPCOM000036065D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 82K

Publishing Venue

IBM

Related People

Basista, JF: AUTHOR [+6]

Abstract

Tailgate connector systems are incorporated when I/O demands exceed those available at the card top and bottom edges. At this point, additional I/O connections have to be cabled from the side of the card. Disclosed is a design for a higher performance/lower noise card tailgate connection assembly.

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Flex Cable Assembly for Card Tailgate I/O Connection

Tailgate connector systems are incorporated when I/O demands exceed those available at the card top and bottom edges. At this point, additional I/O connections have to be cabled from the side of the card. Disclosed is a design for a higher performance/lower noise card tailgate connection assembly.

This methodology incorporates the use of a flexible electronic signal carrier circuit with a ground plane. At the card connection end of the circuit, is a soldered-in pinned header or a pad-on-pad type termination. On the circuit's opposite end, are attachments to multiple D-type or similar connectors (see Fig. 1 and 2).

The flex circuit provides good electrical characteristics such as controlled impedance and reduced noise over prior art (twisted pair wire). Moreover, replacing massive twisted pair wire groupings with a low profile flex circuit structure improves air flow across the card.

(Image Omitted)

Utilization of this printed circuit/plated via design decreases assembly time by allowing implementation of mass termination techniques.

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