Positioning Racks - 3Com 6040 Installation Manual

3Com Router 6000 Family
Installation Manual
Figure 8-20 Install a B68 cabinet (on the antistatic floor)

8.3.4 Positioning Racks

I. Determining where to install the cabinet
You must determine where to install the cabinet according to the benchmark specifications
provided in the footprint and outer dimensions of the cabinet.
II. Marking
According to the footprint and outer dimensions of the cabinets and dimensions of racks, do
the following:
1) Measure mark dots with a tape.
2) Draw two lines parallel with the reference and 760 mm (29.9 in.) away from each
other with an ink fountain.
3) According to the design, mark the position of the installation holes for a rack on
these two lines. Based on the marks, mark the position of other rack installation
holes.
4) Verify marking and sizes to prevent mistakes.
5) Figure 8-21 illustrates the layout of the rack installation holes. Figure 8-22and
Figure 8-23and Figure 8-24 illustrate the layout of the mounting holes for a single,
two and multiple cabinets respectively.
3Com Corporation
8-18
Chapter 8
Installing B68 Cabinets