User`s guide

Powering On the System
007-4834-001 81
Powering On the System
To connect the controller and the expansion enclosures to the AC power source and
power on the system, follow these steps:
Warning: Electrostatic discharge can damage sensitive components. Use
appropriate antistatic precautions before handling any components.
1. Make sure the switches on the power distribution units (on the rear of the rack
inside the access panel) are in the OFF position.
2. Make sure both power switches on each of the controller and expansion enclosures
are off.
3. Plug the power cords into each power supply of the storage enclosures (see “AC
power in” in Figure 5-13). Plug the left-side power cords into the left PDU and plug
the right-side power cords into the right PDU.
Figure 5-13 Power Connections and Switches of the Enclosures
Note: See Appendix A, “Specifications and Requirements” for details on power
requirements.
4. To keep the power cords from being accidently pulled from the power connections,
secure the cords in the strain relief power cord clips.
5. To ensure power redundancy, plug each power distribution unit into a separate AC
power circuit, see Figure 5-14 for an example.
Power switch
Power switch