DocumentCode
1142290
Title
Recovery and Diagnostics in the Central Control of the AXE Switching System
Author
Ossfeldt, Bengt E. ; Jonsson, Ingmar
Author_Institution
ELLEMTEL Development Company
Issue
6
fYear
1980
fDate
6/1/1980 12:00:00 AM
Firstpage
482
Lastpage
491
Abstract
AXE is a stored program controlled (SPC) telephone exchange system. Its control system typically comprises 100 000 IC packages with MTBF = 200 h. The application allows the control system to contribute to the system outage with only a few minutes per year. An ordinary telephone technician is able to maintain the system, mainly during normal working hours.
Keywords
Concurrent diagnosis diagnostic programs; diagnostics performance evaluation; fault-tolerant computing; intermittent fault; maintainability; maintenance software; physical fault insertion; self checking; Central Processing Unit; Centralized control; Circuit faults; Control systems; Fault diagnosis; Hardware; Printed circuits; Software maintenance; Switching systems; Telephony; Concurrent diagnosis diagnostic programs; diagnostics performance evaluation; fault-tolerant computing; intermittent fault; maintainability; maintenance software; physical fault insertion; self checking;
fLanguage
English
Journal_Title
Computers, IEEE Transactions on
Publisher
ieee
ISSN
0018-9340
Type
jour
DOI
10.1109/TC.1980.1675607
Filename
1675607
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