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8 – Operating Modes (continued)
8-8 Manual Bypass Mode (Parallel UPS)
Similar to manual bypass mode for a single UPS system (Section 8-4),
except with parallel (1+1) UPS systems. Note: Both UPS systems must
be switched into manual bypass mode.
8-9 Hot Standby Mode (Parallel UPS)
For added fault-tolerance, the redundant UPS system acts as the bypass
(reserve) power source for the main UPS system.
200706017 93-2688 SU manual 4C.indd 24200706017 93-2688 SU manual 4C.indd 24 11/29/2007 2:02:45 PM11/29/2007 2:02:45 PM