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Old 10-27-2011, 08:13 PM
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Kenmillerjr Kenmillerjr is offline
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Default Redundant Power Supplies

This question is more out of curiosity...Are both PSU's sucking juice at the same time, or is just the active one?
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Ken Miller, Jr.
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Southside Baptist Church | Warner Robins, GA

| VENUE Profile 96X64 with MADI Option | ProTools 7.4.2 HD3 Accel PCI | ProTools 10 Native | MacBook Pro 17" OS 10.7.1 2.3GHz Intel Core i7 8GB Ram | Mbox 2 Pro | Mbox 3 Pro | Motu 896mk3 Hybrid |
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Old 10-27-2011, 10:37 PM
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Sheldon Radford Sheldon Radford is offline
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Default Re: Redundant Power Supplies

Each PSU has multiple power rails at different voltages. Any one of the rails can fail, and the rail from the other PSU will take over instantly.

So it's not an "all or nothing" situation, unless something catastrophic happens to all rails, or the inlet AC to one of the PSU's is removed.

Sheldon
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Old 12-19-2011, 10:37 AM
Mystere1 Mystere1 is offline
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Default Re: Redundant Power Supplies

Sheldon,
A follow up to this. Are the PSUs running in Parallel (like a Heritage or XL4) or does one PSU have priority? In other words, does it matter which one is started up first?
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Old 12-19-2011, 12:25 PM
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Sheldon Radford Sheldon Radford is offline
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Default Re: Redundant Power Supplies

Hi,

It doesn't matter which PSU starts up first, as they always run in parallel.

Sheldon
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