Browse Prior Art Database

60-Port Dynamic Switch Chassis with Directly Pluggable Logic, Power and Cooling

IP.com Disclosure Number: IPCOM000118426D
Original Publication Date: 1997-Feb-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 4 page(s) / 107K

Publishing Venue

IBM

Related People

Fritz, RA: AUTHOR [+3]

Abstract

The 60-port dynamic switch is packaged in a folded and welded sheet steel chassis which provides guidance and retention for direct plugging of each Field Replaceable Unit (FRU). The pluggability is made possible in part through the use of drawer connectors and a logic package.

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60-Port Dynamic Switch Chassis with Directly Pluggable Logic, Power
and Cooling

      The 60-port dynamic switch is packaged in a folded and welded
sheet steel chassis which provides guidance and retention for direct
plugging of each Field Replaceable Unit (FRU).  The pluggability is
made possible in part through the use of drawer connectors and a
logic package.

      The chassis is designed to be blanked on numerically controlled
machines with the possibility of cadam output being directly loaded
into the blanking machine.  This allows for an extremely repeatable
and precise manufacture of intricate sheet metal sub-parts at a low
cost in  production volumes.

      Each sub-part has either tabs or slots for precise location to
each other sub-part of the weldment that no assembly fixturing or
clamping is required prior to welding.  The final weldment is square
and dimensionally acceptable with no subsequent operations required
for straightening or stress relief.

      The chassis develops mechanical strength through purely
functional folds for guidance and retention of various FRUs.

      There is a vertical channel folded into each of the two side
walls and a horizontal channel welded into each of the two side
walls.  These allow for guidance and direct plugging of the logic
assembly into the power distribution chassis where a combination wall
and shelf is provided for mounting of floating power connectors.

      A one piece "multiple hat section" bottom provides guidance of
the power/cooling assemblies to power connectors located in the wall
part of the power distribution sub-part.

      An air containment plenum is incorporated into the weldment for
cooling.

      Provisions are made for "air dams" to block off portions of the
ple...