Don North wrote:
I currently work for a big datacom supplier, and design
a lot of rack
mount equipment. The current major datacom/telecom customers invariably
want all equipment to fit in standard 19" two or four post racks. They
really don't like the 23" width (not 24" width) at all, and really balk
at buying a chassis that requires a 23" rack.
And there's also 21".... Of course one notices these things when trying to
mount 19" gear in the rack :).
More interesting is the concept of 'U' when it
comes to racks. All
equipment is in units of 'U' (a standard 8' rack is 44U), which is
1.75". So anyone know where 'U' came from, and why it is called 'U'?