User`s guide

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2: Using the L1 and L2 Controllers
Note: Besides the L1 control display, if you have an L2 controller, you can see the L1
controller messages on the L2 controller touch display located on the front door of the
leftmost compute rack (position 001). If you have a system console, you can also see the
L1 controller messages on your system console.
Table 2-1 lists the L1 controller messages.
Note: Note that in Table 2-1, a voltage warning occurs when a supplied level of voltage
is below or above the nominal (normal) voltage by 10 percent. A voltage fault occurs
when a supplied level is below or above the nominal by 20 percent.