G - Physics – 06 – F
Patent
G - Physics
06
F
354/225
G06F 11/00 (2006.01) G06F 11/273 (2006.01)
Patent
CA 1156371
SPECIFICATION OF ROBERT J. KOEGEL RONALD E. LANGE AND TERRY L. DAVIS FOR MICROPROCESSOR BASED MAINTENANCE SYSTEM ABSTRACT OF THE DISCLOSURE There is disclosed herein an apparatus for use in automated testing of elements in data processing systems such as the central processing unit. The system is comprised of a microprocessor with associated firmware, RAM and peripheral communications devices. There are two communication interface ports for receiving commands and instructions from local and remote computer terminals or from data processing units programmed to cause the testing apparatus to perform predetermined sequences of tests. There is also a port for connection to a portable maintenance panel which can be held in the hand of a field engineer for controlling the testing apparatus. The system is designed to replace prior art maintenance panels used for debugging computer hardware. These prior art panels were slow and cumbersome in that data and addresses had to he switched in using numerous toggle switches and data was displayed using numerous LED indicators. Such maintenance panels were also expensive to build. In contrast, the disclosed testing apparatus is relatively inexpensive and allows the field engineers to rapidly perform many tests, thereby minimizing down time. 5202823
360420
Davis Terry L.
Koegel Robert J.
Lange Ronald E.
Honeywell Information Systems Inc.
Smart & Biggar
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