3Com SuperStack II Switch 9300 Getting Started Manual page 22

22 C 2: I
HAPTER NSTALLING THE
To find the top of the pattern, locate the midpoint
between any two holes that are spaced
Figure 7 shows the universal mounting hole pattern.
Figure 7 Universal Mounting Hole Pattern
Top of the pattern
or top of the rack
Universal
mounting
hole pattern 1U
= 1U
= 1 3/4 inches
1U
1U
Bottom of the pattern
Determine which holes to use to mount your system.
4
Two Switch 9300s are designed to mount in any 3U
space of the rack (that is, the space occupied by three
instances of the universal mounting hole pattern).
S
YSTEM
/ inch apart.
1
2
1/2"
5/8"
5/8"
1/2"
5/8"
5/8"
1/2"
5/8"
5/8"
1/2"
Figure 8 illustrates the positions of two Switch 9300s,
one attached to holes 1 and 3 and the other attached
to holes 6 and 8.
To mount only one Switch 9300, use either position.
Figure 8 Placement of Switch 9300s in a Distribution Rack
Placement of
Switch 9300
(position 1)
3U
(5.25")
Placement of
Switch 9300
(position 2)
Repeat the process on the other rail.
5
Be sure to select holes that are parallel to each other
on the mounting rails.
Hole 1
Hole 3
Hole 6
Hole 8