---
name: "masterguard"
section: "8"
platform: "linux"
package: "nut"
version: "2.8.5-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/masterguard"
---

# masterguard(8)

Driver for Masterguard UPS equipment

## NAME

masterguard - Driver for Masterguard UPS equipment

## SYNOPSIS

**masterguard** -h

**masterguard** -a *UPS\_NAME* \[*OPTIONS*\]

**Note**\

This man page only documents the hardware-specific features of the masterguard driver. For information about the core driver, see [**nutupsdrv**(8)](/nutupsdrv/8.md).

## NOTE

Please note that this driver is deprecated and will not receive new development. If it works for managing your devices — fine, but if you are running it to try setting up a new device, please consider the newer [**nutdrv\_qx**(8)](/nutdrv_qx/8.md) instead, which should handle all *Q\** protocol variants for NUT.

Please do also report if your device works with this driver, but [**nutdrv\_qx**(8)](/nutdrv_qx/8.md) would not actually support it with any subdriver!

## SUPPORTED HARDWARE

This driver supports Masterguard UPS equipment (serial connection only).

## EXTRA ARGUMENTS

**CS**

Cancel the shutdown procedure.

## AUTHOR

Michael Spanier \<mail@michael-spanier.de\>

## SEE ALSO

### Newer driver:

[**nutdrv\_qx**(8)](/nutdrv_qx/8.md)

### The core driver:

[**nutupsdrv**(8)](/nutupsdrv/8.md)

### Internet resources:

The NUT (Network UPS Tools) home page: https://www.networkupstools.org/historic/v2.8.5/