Browse Prior Art Database

Anti-Sway for RISC System 6000 Rack System

IP.com Disclosure Number: IPCOM000112775D
Original Publication Date: 1994-Jun-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Bogaczyk, FW: AUTHOR [+3]

Abstract

Disclosed is a device that allows the RISC System/6000* Computer Rack System to meet the Network Equipment Building Specification (NEBS) for machine stability and operation during an earthquake. This specification is a requirement for computers that are installed in telecommunication complexes.

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

Anti-Sway for RISC System 6000 Rack System

      Disclosed is a device that allows the RISC System/6000*
Computer Rack System to meet the Network Equipment Building
Specification (NEBS) for machine stability and operation during an
earthquake.  This specification is a requirement for computers that
are installed in telecommunication complexes.

      The Rack System must have the capability of meeting the
sway-limit requirement during a Level 4 Earthquake Test.  The
sway-limit requirement allows the top of the machine that is anchored
at the base to a concrete floor to deflect a maximum of 3 inches in
one direction and then a maximum of 3 inches in the opposite
direction.  The Rack System is required to continue to operate during
and after the Level 4 Earthquake Test.

      The sway brace is placed so as to reinforce the Rack System
cabinet in the side-to-side direction without excessive restriction
to the cable access.  The brace incorporates heavy bar sections to
prevent buckling during an earthquake, which would permit excessive
sway.

*  Trademark of IBM Corp.