Technical Documentation

M320 Mounting Hole Locations for Four-Post Racks or Cabinets

Table 1 specifies the holes in which you insert mounting screws (an X indicates a mounting hole location), and cage nuts if needed. The hole distances are relative to one of the standard “U” divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a “U” division.

Table 1: Four-Post or Cabinet Rack Mounting Hole Locations

Hole

Distance Above “U” Division

Large Shelf

Spacer Bars

Small Shelf

51

29.51 in. (74.9 cm)

16.86 U

  

X

  

42

24.26 in. (61.6 cm)

13.86 U

  

X

  

33

19.01 in. (48.3 cm)

10.86 U

  

X

  

30

17.26 in. (43.8 cm)

9.86 U

X

    

24

13.76 in. (34.9 cm)

7.86 U

  

X

  

15

8.51 in. (21.6 cm)

4.86 U

  

X

  

6

3.26 in. (8.3 cm)

1.86 U

  

X

  

3

1.51 in. (3.8 cm)

0.86 U

    

X

2

0.88 in. (2.2 cm)

0.50 U

X

  

X

1

0.25 in. (0.6 cm)

0.14 U

    

X

Published: 2009-09-26