'\" t
.\"     Title: liebert
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 02/19/2024
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.8.1
.\"  Language: English
.\"
.TH "LIEBERT" "8" "02/19/2024" "Network UPS Tools 2\&.8\&.1" "NUT Manual"
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.SH "NAME"
liebert \- Driver for Liebert contact\-closure UPS equipment
.SH "NOTE"
.sp
This man page only documents the hardware\-specific features of the liebert driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
.SH "SUPPORTED HARDWARE"
.sp
This driver supports some Liebert UPS equipment with a contact\-closure interface\&. This includes the UPStation GXT2 with their contact\-closure cable\&. The smart mode ("Multilink") cable is not supported by this driver\&.
.SH "EXTRA ARGUMENTS"
.sp
This driver does not support any extra settings in the \fBups.conf\fR(5)\&.
.SH "BUGS"
.sp
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 to build another cable with DTR connected through to the UPS for it to work\&.
.sp
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 limitation of any contact\-closure driver\&.
.SH "SEE ALSO"
.SS "The core driver:"
.sp
\fBnutupsdrv\fR(8)
.SS "Internet resources:"
.sp
The NUT (Network UPS Tools) home page: https://www\&.networkupstools\&.org/