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Post by audiojack on Feb 15, 2021 22:58:07 GMT
I have 20U * 4 rows (Rack A) full of modules and I'm getting to a stage where I am wondering how to expand.
Can I power 20U * 4 rows (Rack B) from a second power supply module and link the bus of Rack A and Rack B together?
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cpruby
Junior Member
Posts: 72
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Post by cpruby on Feb 15, 2021 23:09:49 GMT
If I'm understanding correctly, you don't need a second power supply and you can share the power and bus with a simple 2x5 IDE cable that comes with the case hinge kit ( www.tangiblewaves.com/store/p102/AE_modular_case_hinge_kit_Type_1.html) or you can make one yourself. I made one for a mini-interface rack to tuck behind my main rack and I made a custom 2 foot length 2x5 IDE for that purpose. I run one master module and it powered 5 rows of 16 modules. I'd probably double check the power consumption since you're looking at powering 80 modules, but I imagine you'd be fine. |
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Post by MikMo on Feb 16, 2021 9:12:46 GMT
If you are running two 20x4 cases, i think you need dual powersupplys.
i would ask Robert how to best power / interconnect the two cases.
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Post by solipsistnation on Feb 16, 2021 16:02:44 GMT
I believe what you need is a PSU connected to the POWER or MASTER module in each 4x20 and then a single wire running between the ground connections on the POWER or MASTER modules. That will let you patch between racks without issue. If you want to link the busses, I think you'd need a MASTER in one rack and POWER in the bottom (MASTER provides the BUS signals, POWER doesn't, so they wouldn't fight with each other)-- then you can play with cutting wires on the 10-pin cable that runs between the racks (I believe you can cut the top 4-- the red one and the next 3, but you need to be very careful with this since if you plug them in wrong it's likely to cause problems).
wiki.aemodular.com/pmwiki.php/AeManual/RACKLINK(It says they're not needed for newer racks, and they aren't, I think, if you're running a smaller rig than 2x4x20. They look good for isolating 2 separate power supplies while letting the other signals through.) (Somebody should probably verify that this works the way I think it will, but it looks right to me.) |
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Post by audiojack on Feb 16, 2021 22:50:42 GMT
I had a quick play around with AEModular Grid and for my current 4 * 20 layout I am told:
Total power capacity: 800mA
Total power consumption : 606.2mA
So I might be able to add another 2 * 20 at a stretch, but probably not more.
I'll try to figure out how to connect more power when I get to above 6 * 20.
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Post by admin on Feb 16, 2021 22:54:23 GMT
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