Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Enhanced Manufacturing Test Capabilities of Remote Bus Adapters

IP.com Disclosure Number: IPCOM000116768D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Barrett, WM: AUTHOR [+3]

Abstract

A method to test fiber-optic connected bus adapter cards in a manufacturing environment is disclosed. These cards can be tested via special commands received across the I/O bus they plug into, and there is no need to optically connect the card to its normal Central Processing Unit (CPU). The bus adapter cards mentioned in this disclosure have the following two interfaces: 1. A port for a fiber-optic connection to the Central Processing Unit (CPU) of the computer system. 2. A connector for use in inserting this card into an I/O bus where this card can communicate with other compatible cards.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 54% of the total text.

Enhanced Manufacturing Test Capabilities of Remote Bus Adapters

      A method to test fiber-optic connected bus adapter cards in a
manufacturing environment is disclosed.  These cards can be tested
via special commands received across the I/O bus they plug into, and
there is no need to optically connect the card to its normal Central
Processing Unit (CPU).  The bus adapter cards mentioned in this
disclosure have the following two interfaces:
  1.  A port for a fiber-optic connection to the Central Processing
       Unit (CPU) of the computer system.
  2.  A connector for use in inserting this card into an I/O bus
where
       this card can communicate with other compatible cards.

      In a normal system environment, a bus adapter card cannot begin
to perform any functions until instructed to do so by the software in
the CPU.  Traditional testing, therefore, involved cabling the card
to a CPU to perform a functional test.

This new method of testing out these bus adapter cards in a
manufacturing environment involve:
  o  Inserting multiple bus adapter cards into a card cage.
  o  No fiber-optic cables are connected.  The standard optical "wrap
      plugs" are to remain inserted in the fiber-optic port.
  o  Being able to thoroughly test out the card in a short amount of
      time (relative to a full system initial program load (IPL)
time)
      via commands sent across the I/O bus from a special bus
      controller c...