Title :
Recovery and Diagnostics in the Central Control of the AXE Switching System
Author :
Ossfeldt, Bengt E. ; Jonsson, Ingmar
Author_Institution :
ELLEMTEL Development Company
fDate :
6/1/1980 12:00:00 AM
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;
Journal_Title :
Computers, IEEE Transactions on
DOI :
10.1109/TC.1980.1675607
