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Early Siemens addressable fire panels had the database stored in an EPROM, learned all about it when a client requested some changes to their building about 3 years ago. Siemens had to call a bunch of guys that retired/moved on and then track down some ancient computers and chip programmers strewn about their office. It was apparently common enough to reprogram them in the field, but since the chip in the panel was the only copy of that database in existence they took the whole thing back to the office so as not to gently caress it up. I think the client got a warning too, something along the lines of "this is the last time we're doing this, you need to upgrade your panel next time".
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Aug 4, 2018 14:42
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| # ¿ Apr 28, 2024 06:40 |
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