Liebert Driver


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Liebert Gxt4 Driver

liebert - Driver for Liebert contact-closure UPS equipment


This man page only documents the hardware-specific features of the liebert driver. For information about the core driver, seenutupsdrv(8).

Liebert gxt3 usb driver

Supported Hardware

This driver supports some Liebert UPS equipment with a contact-closure interface. This includes the UPStation GXT2 with their contact-closure cable. Thesmart mode ('Multilink') cable is not supported by this driver.

Extra Arguments

This driver does not support any extra settings in the ups.conf(5).


This driver does not yet support shutdowns by raising DTR. Be aware that shutdowns are not possible with the stock contact-closure cable. You may have tobuild another cable with DTR connected through to the UPS for it to work.

There is no way for this driver to detect the hardware or cable. It will start up successfully even if no UPS is present. This is a fundamental limitationof any contact-closure driver.

See Also

The core driver:

The NUT (Network UPS Tools) home page:
Liebert Driver

Referenced By


Liebert Driver Job