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Issue No. 06 - June (1980 vol. 29)
ISSN: 0018-9340
pp: 482-491
B.E. Ossfeldt , ELLEMTEL Development Company
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.
self checking, Concurrent diagnosis diagnostic programs, diagnostics performance evaluation, fault-tolerant computing, intermittent fault, maintainability, maintenance software, physical fault insertion

I. Jonsson and B. Ossfeldt, "Recovery and Diagnostics in the Central Control of the AXE Switching System," in IEEE Transactions on Computers, vol. 29, no. , pp. 482-491, 1980.
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