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Old April 20, 2009, 06:03 PM
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Default How to build an APC U.P.S. data cable.


Let me start this out with a comment about this cable.

For shame APC !

Doing the apple thing.....Proprietary cables to cash in....sheeesh.

35$ for this cable is theft.


Nice try tho..........I defy you !!!

The cable in question is the rj50 to USB data cable to connect an APC Uninteruptable Power Supply to the host computer.

This is a 10p10c modular phone connector.....looks like an ethernet plug but it's 10 pins.......that connects to a USB jack.


Donor USB cable + connectors ;


The pinouts can be found here : APC USB cable schematic pinout and signals @


Finished cable ;


That cost me 2$.

Srry APC.

Supermicro X11DPi-NT:2x Xeon Gold 6144's:Lots more other stuff.Dual 4k monitor video .
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