Browse Prior Art Database

Connector Cover

IP.com Disclosure Number: IPCOM000036872D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Wangel, ML: AUTHOR

Abstract

In development, compromising emissions may be radiated from the I/O panel of an electrical device, such as a personal computer. Normally, to prevent these emissions, filters are generally used within the device on the inside of the I/O panel such that no compromising emanations can escape through the connector when the external cable is not connected. In some cases, it is not possible to filter signals without affecting signal quality and subsequent performance of the attached device. In these cases, it becomes necessary to provide external protection at the I/O panel connector to prevent these emissions when the external cable is not connected to the I/O connector. To prevent these emissions, a special connector cover has been designed which contacts the I/O panel gasket all around the connector periphery.

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Connector Cover

In development, compromising emissions may be radiated from the I/O panel of an electrical device, such as a personal computer. Normally, to prevent these emissions, filters are generally used within the device on the inside of the I/O panel such that no compromising emanations can escape through the connector when the external cable is not connected. In some cases, it is not possible to filter signals without affecting signal quality and subsequent performance of the attached device. In these cases, it becomes necessary to provide external protection at the I/O panel connector to prevent these emissions when the external cable is not connected to the I/O connector. To prevent these emissions, a special connector cover has been designed which contacts the I/O panel gasket all around the connector periphery. The connector cover would be positioned over the I/O panel connector and held in place with two retaining shoulder screws. Lock washers lock the screws in place and prevent loosening. Nylon retaining washers on the inside of the cover prevent the shoulder screws from being lost when the cover is not in place.

The connector cover provides a seal against the I/O gasket and prevents leakage when an external connector is not in place. A retaining chain is also attached to the connector cover under the head of one of the shoulder screws instead of the lock washer to prevent it from being lost when not in use, and thus ensuring integrity from the emi...