Well after some consideration, and inspiration from other members (Norty303 & FourDee), I have decided to take this on and build my own remote fb3 box. It will be built into a very small 1150 Pelican Case with a USB over cat5e extender
It will have Dual DB25 outputs for each FB3, Neutrik Power in, and Neutrik EtherCon in.
I have two ideas.. but i doubt i will be able to fit a usb hub and its power supply inside the case for a 5th external fb3 via Neutrik USB panel mount
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Designed in FrontPanelExpress. Id be happy to share the project file with anyone wanting to do the same
Insipred by FourDee's creation
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Parts:
D-Sub parts and ribbon cable acquired from Aletx.com for $70
Neutrik EtherCon and PowerCon acquired from FullCompassSystems.com for $17
1150 Pelican Case and Panel Frame Kit acquired from Pelican-Cases.com for $61
StarTech USB2004EXT2 4 port USB 2.0 over CAT5e Extender Acquired from Newegg.com for $326
Front Panel from Frontpanelexpress.com $75
Total $549 including taxes and shipping
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