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The original was posted on /r/homelab by /u/KiasuGamer0930 on 2025-03-13 10:58:37+00:00.
APC had these smart UPS with a single USB port, to send comms to your device to power it down during a power supply blackout exceeding xx minutes.
Its only work for one device, generally a server or NAS…
But what about both or three device?
How to multiplex these USB comms port?
I am a linux sysadmin, I could write scripts to comms to the devices via ssh, but thats not a idiot-proof solution. Not every device had a CLI shell.
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I guess, this is what you are looking for:
