Sun Microsystems A3500 manual Connecting to AC Power Source, Power Sequencer Interconnections

2.5.2Power Connections

2.5.2.1Power Sequencer Interconnections

The front and rear power sequencers in the 2x7 cabinet and the 1x8 cabinet must be interconnected. Make sure an interconnect cable (part number 530-2235-xx) is connected between the OUT on the front sequencer in 2x7 cabinet and the IN on the front sequencer in 1x8 cabinet (FIGURE 2-22). Make sure that the rear sequencers are likewise connected.

FIGURE 2-22Connecting the Power Sequencers

2.5.3Connecting to AC Power Source

Each of the AC power cords connected to the expansion cabinets should be on independent circuit breakers.

To ensure proper redundancy, if independent circuit breaker boxes or AC power sources are used, power cords from the same expansion cabinet should be connected to different circuit breaker boxes or AC power sources.

Caution –You must ensure that the second rack will not lose power without the first. Data loss is likely to occur if this happens. DO NOT configure the 3x15 expansion cabinets as shown in FIGURE 2-23and FIGURE 2-24. Consult with an electrician if you do not understand the schematics in the figures.

Chapter 2 StorEdge A3500 Configurations 2-25