Power backups for fiber optic networking equipment typically involve a combination of uninterruptible power supplies (UPS) and generators to ensure continuous operation during outages. UPS systems provide immediate power during short-term outages, while generators are utilized for longer-term power failures. The choice of backup systems varies based on the criticality of the operations; for instance, major companies may require extensive battery backup and generators, while smaller firms might only need a few hours of battery support. The cost and maintenance of these systems also influence decisions, as generators are generally more cost-effective for prolonged outages compared to large UPS battery systems. Overall, a hybrid approach of both UPS and generators is common in the industry.