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Browse Prior Art Database

IBM System/360-370 Oemi Power Control Extension

IP.com Disclosure Number: IPCOM000099923D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

DeWitt, WF: AUTHOR

Abstract

The following is a description of a means of extending the 150/400-foot limit of the IBM System/360-370 OEMI Power Control Interface.

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

IBM System/360-370 Oemi Power Control Extension

       The following is a description of a means of extending
the 150/400-foot limit of the IBM System/360-370 OEMI Power Control
Interface.

      The Remote Power Control Interface consists of an adapter card
that plugs into a slot in an IBM PS/2* Personal Computer, together
with the software that drives the adapter card.  The adapter card
uses an Intel 8255 Programmable Peripheral Interface module.  The
address space used by the Game Control Adapter will be used for the
Power Control Interface.  The Intel 8255 is used to drive control
lines to relays and to sense "power complete".  The relay contacts
provide the "power pick" and "power hold" signals.  Four six-pin EPO
connectors are provided per card in a separate box.  A local End User
Interface controls product power for computer distances up to 150'.
For distances greater than 150', the PS/2 computer is connected to a
T/R LAN or to a Serial RS232 port to phone lines via a modem.  The
software provides the local End User Interface and interfaces between
the 8255 and the T/R or the Serial Port.  The PS/2 computer is always
powered on for the Remote Power Control to work.  The "power hold" is
magnetically latched to keep product power on if the PS/2 computer is
powered off.

      *  Trademark of IBM Corp.