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Your first setup (with the Y cable) is the basic idea for a parallel UPS system, but you won't actually use a Y-cable; the UPSes would be hard-wired to an external paralleling system which should also provide a bypass connection -- basically a circuit breaker panel used in reverse. The UPSes would also need to communicate with each other to stay in sync for ...


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I'd recommend sizing for the runtime and protections you actually require. Please look into extended-runtime UPS solutions compatible with your units. You can add extra runtime via additional batteries. Is all of your equipment on dual power supplies? Are the power distribution modes configurable on the servers?


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I deal with a large number of small/medium-sized businesses and the plans for server room build-out and cleanup vary considerably, based on growth and infrastructure needs. In years past, when I had to house lots of large servers and rack mount equipment, I'd use a combination of multiple enclosures and dedicated network racks (example). However, ...


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In the typical office you'll have structured cabling with RJ45 wall outlets for desktops and VoIP handsets connected to a wiring cabinet with patch-panels and switches. That wiring cabinet may already be in your server room or you have backbone cabling from the switches in wiring cabinet on each floor converging in your server room. In your server room for ...



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