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Cable Overmold Design to Prevent Mis-Plugging of Mini-Ribbon Connectors to "D" Subminiature Connectors

IP.com Disclosure Number: IPCOM000113089D
Original Publication Date: 1994-Jul-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

O'Groske, RD: AUTHOR [+3]

Abstract

A cable overmold design to prevent mis-plugging of high density mini-ribbon connectors to "D" subminiature connectors is disclosed. The overmold extends over the front shell of the ribbon connector and causes interference when an attempt is made to plug the ribbon connector to a similar looking "D" subminiature connector.

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

Cable Overmold Design to Prevent Mis-Plugging of Mini-Ribbon Connectors
to "D" Subminiature Connectors

      A cable overmold design to prevent mis-plugging of high density
mini-ribbon connectors to "D" subminiature connectors is disclosed.
The overmold extends over the front shell of the ribbon connector and
causes interference when an attempt is made to plug the ribbon
connector to a similar looking "D" subminiature connector.

      A 50 position high-density mini-ribbon connector will plug
directly into a 25 position "D" subminiature connector.  The
connectors are incompatible, and shorting of signal pins will result.

      To avoid this possibility, design an overmold that covers the
mini-ribbon connector so that the front of the mold extends over the
front shell of the ribbon connector (Fig. 1).

      The front edge of the overmold will interfere with the
standoffs and/or the shell of the "D" subminiature connector (Fig.
2).  This interference will occur before the contacts are mated,
preventing accidental shorting of signal pins.