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Browse Prior Art Database

Expansion Unit for Rack-Mounted Computer System

IP.com Disclosure Number: IPCOM000122226D
Original Publication Date: 1991-Nov-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 3 page(s) / 93K

Publishing Venue

IBM

Related People

Bachman, W: AUTHOR [+11]

Abstract

This article provides a means of adding a hardware expansion unit to a base computer system unit to provide additional packaging for computer devices such as: Direct Access Storage Devices (DASDs), Tape Units, and specialty cards. The package disclosed provides for mounting, cooling, electro-magnetic and electro-static protection, as well as necessary cable connections for power and signal lines.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 66% of the total text.

Expansion Unit for Rack-Mounted Computer System

      This article provides a means of adding a hardware
expansion unit to a base computer system unit to provide additional
packaging for computer devices such as:  Direct Access Storage
Devices (DASDs), Tape Units, and specialty cards. The package
disclosed provides for mounting, cooling, electro-magnetic and
electro-static protection, as well as necessary cable connections for
power and signal lines.

      A system with the expansion unit attached is shown in Fig. 2.
The expansion unit 1 (see Fig. 1) is assembled to the base system by
removing the top cover 13 from the base system and attaching the
expansion unit with three screws and a C clamp.  This connection
provides direct contact for the electro-magnetic and electro-static
grounding.  The base cover 13 is used on top of the expansion unit
frame 1.  The front cover 9 and rear cover 10 are shown with louvers
for airflow to cool the devices contained.  Electrical shields 11,12
are attached to the inside surfaces of the covers. These shields are
designed to contact the inside of the frame 1 and the inside
subframes 7,8.  The expansion unit side covers 3,4 are identical
parts.

      The subframes 7,8 are designed to accommodate the particular
style of device to be mounted in the expansion unit.  Items 21 and 22
show a tray designed to accommodate DASDs.

      The cabling 23 is routed up from the base unit through the
center area of the expansion u...