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Post by johneppstein on Dec 26, 2016 12:50:56 GMT -6
Oh - so Dan's PS will power one of the 11 space racks? Hey guys, yes my PSU will handle 11 spaces. I updated my site for the correction. Here is a facebook thread that jsteiger explains it nicely. www.facebook.com/search/top/?q=Collective%20cases%20psuI have one powering a 11 space CAPI rack right now that is fully loaded. Sounds great. Dan, that link didn't work for me. First FB sent me to a page based on their moronic address correction algorithm. Then when I clicked on the link to go to the link as originally typed it sent me to a thread about computer power supplies. BTW, when you say your rack is "fully loaded" do you mean that all modules are pulling full rated power per slot? (in other words if the rack hass 11 slots rated at 130ma each (The API spec according to Barry Rudolph - some modules exceed this) you'd need to be able to supply 1,430ma, or about 1.5 amps, plus headroom, so call it at least 2 amps plus phantom.) Because if they're not pulling full power per slot (which isn't likely), then the PSU isn't "fully loaded". It should also be noted that some companies produce modules that require significantly MORE than the API specified current. Edit: Here's a link to Radial's published specs for all registered 500 series manufacturers. (Interestingly, API is not on their list....?!) Apparently they mail it to you, as it didn't show up in my downloads folder... |
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Post by dandeurloo on Dec 26, 2016 13:40:24 GMT -6
Sorry, I updated the link. Hopefully that will work for ya.
Yes, the rack was loaded and on. It was all VPR approved stuff. That way it goes with the standard for testing. Yes, some guys don't obey the standard.
Also, the most current pulled by these units is on start up. The "in rush current" to charge all the caps in a rack at once, that is when most units fail the VPR standard. Some smart designers who know their units may require more current at start up, use soft start circuits in their models. The Great River PWM 501 comes to mind. It takes a few seconds to fully turn on. This way it is well with in the spec at all times.
Radial and API have some sort of beef about the standard. I am not sure what happened but they are not happy with each other. I think API doesn't list Radial on their VPR approved list. Fun for all!
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Post by EmRR on Dec 26, 2016 23:49:12 GMT -6
There was a bit floating out there about one part of the VPR standard being that all modules should cost $750 or more. That has obviously since changed, even API has some things under that mark now.
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