Chapter 2. Installing the RA8000 and ESA12000
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2.3.1.2 Installing Power Supply SBBs
Each power supply SBB has two green status LEDs. The upper LED indicates ac power
status and the lower LED indicates power supply status. The procedure for installing
power supplies is basically the same for installing any SBB. Refer to Figure 2–7 during
the installation.
Figure 2–7 Installing SBB Power Supply (n+1 Shown)
CXO5930A
SBB power
supply
AC power
controller
1. Insert the power supply SBB into the guide slots and push in until the power supply is
fully seated and the mounting tabs are engaged into the shelf.
2. Connect the power cord to the power supply SBB.
3. If ac power is off, turn
ON
the ac power entry controller.
4. Observe the power supply SBB LEDs. Both LEDs should be lit, indicating proper
power supply operation on the associated bus.
If the upper LED is not lit after installation this indicates that the power supply is not
functioning properly and needs to be replaced. If both status LEDs are not lit after the
installation, either there is a lack of ac power, the ac power entry controller has failed, or
the power supply SBB just installed has failed.