Digital Equipment DEC 3000 600 AXP, Service Information

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Installation Procedure
Determine the
Installation
Area in the
Cabinet To determine the installation area for the system in an IEC
RS-310 cabinet, perform the following steps at the front and rear
cabinet rails. See Figure 11–1.
Warning
Digital does not recommend installing the system in the
top area of the cabinet, for stability reasons.
The space between mounting holes in the cabinet rails follows a
pattern of 1.27 cm (0.50 inches), 1.59 cm (0.625 inches), and 1.59
cm (0.625 inches). This pattern is repeated for the length of the
rails.
Steps Action
1 Select a section of the cabinet rail where there is a
1.27 cm (0.50 inch) space between two holes.
2 Make a mark between the holes. This is your starting
point.
3 Count up or down three holes. This is one set and
equals 4.45 cm (1.75 inches).
4 Count up or down nine sets and make a mark. The
area between the marks is the installation area.
The total installation area is 40.01 cm (15.75 inches). The
equation for calculating the total area is:
4.45 cm (1.75 inches)
2
9 sets = 40.01 cm (15.75 inches)
Note
The hole count described in this section will install the
system in any predetermined 40.01 cm (15.75-inch) area.
11–2