These are just some notes regarding Data Cener Racks:

 

open bay rack = 2 post frame rack
close bay = wrightline

guide rails

network racks, shorter
server rack longer

1 u = 3 holes

47 u hight
42 u rack

Good information:

https://www.anixter.com/content/dam/Suppliers/Tripp%20Lite/White%20Papers/Rack-Basics-White-Paper-EN.pdf

 

04-p5057-rack-basics-white-paper-en.pdf