4 ms·
> You only really need in excess of that for rooms full of batteries. Behold, racks of crossbar switches (from one such AT&T facility). I'm glad these things a
by cosmicray 16y ago
> You only really need in excess of that for rooms full of batteries.
Behold, racks of crossbar switches (from one such AT&T facility). I'm glad these things are pretty much a relic of the past. I suspect the weight of those racks was one reason for the floor load ratings.
http://long-lines.net/places-routes/MoundsOK/DSC00536A.html http://long-lines.net/places-routes/MoundsOK/DSC00536A.html