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Graphics Interchange Format  |  1997-10-26  |  43.8 KB  |  563x370  |  4-bit (13 colors)
   ocr: Table: 2.1 Failure effects by categories and sources, for outages from April 1992 tol March 1994. Average no. of Average outage Customer minutes Categories and: sources No. of outages customers attected duration (minutes) (in millions) Human error company 77 182,060 149.4 2,349.3 Cable maintenance 8 66,900 168.9 61.3 Power: supply maintenance 19 292,980 150.4 879.1 Power monitoring 4 71,000 185.2 36.5 Facility orl hardware board maintenance 15 169,370 134.7 242.7 Software versions mismatches) 13 127,020 176.5 189.2 Following software maintenance or upgrade 8 225,960 204.2 871.2 Data entry 10 1 ...