Sun Microsystems 816-6386-10 Guide D'installation page 11

Figure 1-5 illustrates the configuration of outlets and outlet groups for a single power strip.
Outlet groups are labeled 0 through 9.
A 48 outlet configuration consists of two power strips with 24 outlets each. A 78 outlet
configuration consists of two power strips with 39 outlets each. Only the outlet groups
shaded in the illustration are included the 48 outlet configuration. All of the outlet groups are
included in the 78 outlet configuration.
There is no J40 on a 39 outlet power strip.
Power sequencer INPUT_A0 provides power to outlet groups 0, 2, 4, 6, and 8. Power
sequencer INPUT_A1 provides power to outlet groups 1, 3, 5, 7, and 9.
When power is applied to a power sequencer it is checked to ensure that it is in the proper
voltage range (qualified). When the power is qualified, it is then switched to the outlet
groups, one at a time at 1.5 second intervals. For example, once INPUT_A0 is qualified by
the sequencer, it is applied to outlet group 0 first, then 1.5 seconds later it is applied to outlet
group 2, then after another 1.5 seconds it is applied to outlet group 4, then outlet group 6,
then outlet group 8. Similarly, once INPUT_A1 is qualified, power is applied to outlet groups
1, 3, 5, and 7 respectively.
Chapter 1 Sun Rack Installation Guide
1-5