For a UPS system in a Rating-4 data center, the synchronization of output can indeed depend on the

specific settings of the UPS. Generally, such systems allow for flexible configuration where the output

can be synchronized to either power feed A or B, depending on which feed is preferred for stability or

redundancy purposes.

Detailed Explanation:

In dual-feed setups, such as those in high-redundancy data centers, the UPS can be set to

synchronize with either feed. This ensures that the UPS maintains continuity in case one feed

becomes unstable or fails. The flexibility to choose synchronization to either feed enhances the

resiliency and reliability of power supply, which is critical in Tier IV (Rating-4) facilities where uptime

is paramount.

EPI Data Center Specialist Reference:

The EPI Data Center Specialist course underscores the importance of configurable UPS systems in

Rating-4 data centers, where redundancy and continuous power are critical. By allowing

synchronization to either feed, the UPS can maintain the highest level of reliability, which aligns with

the rigorous standards expected in such environments.