Connecting AC Power Cables

To connect AC power:

1. Make sure the circuit breaker at the mains is off.
2. Insert an AC power cable into each AC power inlet on the rear-bottom of the Chassis.

AC Power Configuration for Maximum Power Resilience

For increased power availability, it is recommended to use redundant power circuits with a dual Chassis configuration. A redundant power circuit has a second circuit path that keeps power to the Chassis in case of failure of one of the power circuits.

For maximum resilience against power failure, use two power circuits and three PSUs in each Chassis. In each Chassis, connect three PSU to one power circuit, and two PSUs to the other power circuit. For example:

• Chassis A contains 3 PSUs: A1, A2, A3.
• Chassis B contains 3 PSUs: B1, B2, B3.

Connect the PSUs to the Power Circuits as follows:

• PSUs A1, A2, B3 to Power Circuit X.
• PSUs B1, B2, A3 to Power Circuit Y.