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Browse Prior Art Database

Connector with Alternate Staggered Contacts for Hot Pluggability

IP.com Disclosure Number: IPCOM000112369D
Original Publication Date: 1994-May-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Carey, JJ: AUTHOR [+3]

Abstract

Described is a method of achieving hot pluggability for standard Micro Channel* adapters using a connector designed with alternate staggered contacts. The staggering of the contacts in the connector permits the voltage and ground pins to be fully engaged prior to connecting the bus signal pins. Please refer to the Figure with the following description.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 84% of the total text.

Connector with Alternate Staggered Contacts for Hot Pluggability

      Described is a method of achieving hot pluggability for
standard Micro Channel* adapters using a connector designed with
alternate staggered contacts.  The staggering of the contacts in the
connector permits the voltage and ground pins to be fully engaged
prior to connecting the bus signal pins.  Please refer to the Figure
with the following description.

      When card 1 is inserted into connector 2, the contact surfaces
of card 1 contact the connector 2 contacts in the mating sequence 3.
Contacts of mating sequence 3A are connected to the ground and 5 volt
source of the planar.  These contacts will make first and allow the
adapter to power up and pre-charge the electronic components of the
adapter prior to making contact with the signal pins of the
connector.  The next set of contacts to make will be mating sequence
3B.  These contacts are connected to the +12 (high voltage) pins and
the Mirco Channel reset signal.  The last set of contacts to make are
mating sequence 3C.  These contacts are connected to the Mirco
Channel signals for address, data and control.

      Using the AMP-ASC Interconnect System 4 allows the user to
select any contact 5 to be placed/defined on any of the three mating
sequences 3A, B, or C.  Positioning of the contacts 5 is accomplished
in the same method as a layout for a printed circuit board.  The
AMP-ASC Interconnect System 4 uses flexible printed circ...