Maintenance subsystem for computer network including power control and remote diagnostic center

Patent 4695946 Issued on September 22, 1987. Estimated Expiration Date:

October 25, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Unisys Corporation

Application

No. 06/664670 filed on 10/25/1984

US Classes:

714/31Additional processor for in-system fault locating (e.g., distributed diagnosis program)

Examiners

Primary: Harkcom, Gary V.
Assistant: Anderson, Lawrence E.

Attorney, Agent or Firm

International Classes

G06F 11/00 (20060101)
G06F 11/22 (20060101)
G06F 13/12 (20060101)
G06F 13/38 (20060101)
G06F 11/273 (20060101)
G06F 11/10 (20060101)

Abstract

A maintenance processor forms part of a computer network wherein the processor (also designated as the User Interface Processor) operates to initialize and maintain and communicate to remote diagnostic terminals for purposes of confirming integrity of the system and also for displaying data for locating any faults or problems in the network. The maintenance subsystem initiates start-up and self-test routines in a sequenced order for establishing the integrity of the units in the network. The subsystem includes means for testing two types of subsystems, that is, one having I/O controllers with self-test capability and another subsystem having I/O controllers without self-test capability. The UIP provides means for complete control of the network. It can interface the network to a remote service center where all operations such as power-up and initialization can be also effectuated.