American Power Conversion InfraStruXureTM System manual Appendix a System Operation

Appendix A : System Operation

The H3 LED above the Q3 circuit breaker illuminates, indicating that it is safe to operate the Q3 circuit breaker.

Note

2. Close (turn ON) the Q3 circuit breaker on the PDU.

If you have a dual-fed system, check to ensure that power is available before operating the Q3 circuit breaker.

The H2 LED above the Q2 circuit breaker illuminates, indicating that it is safe to operate the Q2 circuit breaker.

Note

3. Open (turn OFF) the Q2 circuit breaker on the PDU.

4.Set the UPS System Enable switch to the OFF position.

68 InfraStruXure System—Installation and Start-Up