Chapter 4 – Power Distribution
0818D
User’s
Guide
4-2
The two input power modules will plug into the computer backplane
at the left rear of the computer chassis (see Figure 4-2). The
physical location of the modules will determine which module is the
preferred input. The two modules are identical, and any module that
is plugged into slot A (top slot) becomes the preferred input. The
module plugged into slot B (bottom slot) becomes the secondary
power input. If the output from the primary module goes outside its
specified limits, transfer to the secondary module occurs within 100
microseconds so the system will continue to operate without
interruption.
Figure 4-2. Rear View of Chassis Showing DC Input Power Modules
Warning
If both input power modules are fully inserted into the
backplane, but only one has external voltage applied,
dangerous voltage will be present at the terminals of
the second module.
Power
Modules
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