It’s hardened in this way due to the potential of catastrophic event. Flood, wind, ect. There are millions, sometimes 100’s of millions, of dollars of hard to replace equipment in these buildings that are safeguarded. There is such a Central office in Miami, which has international circuits. When Hurricane Andrew hit it, destroying the surrounding area, it stood without damage.
It’s hardened in this way due to the potential of catastrophic event. Flood, wind, ect. There are millions, sometimes 100’s of millions, of dollars of hard to replace equipment in these buildings that are safeguarded. There is such a Central office in Miami, which has international circuits. When Hurricane Andrew hit it, destroying the surrounding area, it stood without damage.