On 1/21/12 8:28 AM, James Bensley wrote:
Even if you've never had a failure I'd still like to know, thats just as important.
I should also mention that at my previous job, we had an "event" one fine December afternoon. Three 6509s all fried simultaneously: 3x chassis, 6x sup, 4x linecards. DC power, and the boys were working on DC power when it happened. Interestingly, each 6509 had a 7507 underneath it, fed by the same fuse panel as the respective 6509; the 7507 emerged unscathed.
To this day, the facilities crew won't accept that it was a power event, even when I point out the phantom -28V that appears on the distribution panel when the inbound and outbound circuit breakers are all off. :)
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