AL175(8)

📦
version 2.8.5 · 18 versions
, in fedora 43, fedora 44

✨ AL175(8) — the NUT Manual glow-up ✨

okay bestie, gather round, because we're talking about al175, the driver for Eltek UPS models that rock an AL175 alarm module 💖 this is page AL175(8) from the NUT Manual and it's lowkey iconic.

🦋 NAME 🦋

al175 — the driver for Eltek UPS models with the AL175 alarm module. that's it, that's the whole vibe. periodt.

🌸 SYNOPSIS 🌸

al175 -h

al175 -a UPS_NAME [OPTIONS]
heads up, bestie: this man page only spills the tea on the hardware-specific features of the al175 driver. for the core driver deets, go read nutupsdrv(8). don't skip it, it's giving required reading 💅

💖 SUPPORTED HARDWARE 💖

so the al175 driver is known to work with these UPSes:

  • Eltek MPSU4000 with AL175 alarm module

it may also work with other UPSes that have an AL175 alarm module, but ngl those have not been tested 🙈 so like, proceed with the vibes you have.

AL175 has to be configured to operate in COMLI mode. check the documentation that came with your hardware for how to do that — i'm not gonna guess, and neither should you 🫶

✨ EXTRA ARGUMENTS ✨

this driver does not support any extra settings in ups.conf(5). no extra settings. zero. the config file stays unbothered 💀

👑 INSTANT COMMANDS 👑

this driver supports some extra commands (peep upscmd(8) for the full lore):

  • test.battery.start — starts a battery test 🔥
  • test.battery.stop — stops a battery test 🛑

🌈 VARIABLES 🌈

besides status, this driver reads the UPS state into the following variables:

  • ups.test.result
  • output.voltage.nominal
  • output.current
  • battery.voltage.nominal
  • battery.current
  • battery.temperature
  • input.transfer.boost.low

that's the whole list, no gatekeeping 🎀

💀 KNOWN ISSUES AND BUGS 💀

okay this is the part where we hold hands and stay honest:

  • Shutdown is not supported. FIXME — yeah, literally, that's the note. no shutdown, not now, maybe someday.
  • the driver was reworked to meet the project's code quality criteria, without testing on real hardware. so some bugs may have crept in 😭 iconic behavior, honestly, but be aware.

🧚 AUTHOR 🧚

Kirill Smelkov <kirr@mns.spb.ru> — the main character who made this happen 💜

🫶 SEE ALSO 🫶

The core driver:

Internet resources:

and that's the whole page, bestie ✨ this was Network UPS Tools 2.8.5, dated 10/07/2026, and you just read AL175(8) from the NUT Manual. slay, stay powered, and go read nutupsdrv(8) fr fr 💅🌸

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