safenet - Man Page

Driver for SafeNet compatible UPS equipment


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

Supported Hardware

This driver supports UPS equipment which can be controlled via SafeNet v1.0 for Windows (serial interface only).

Extra Arguments

This driver supports the following optional settings in the ups.conf(5) file:


Autodetection of this parameter is not possible yet (and it probably never will be). Therefore, this user-defined string accepts any name. The default is unknown.


Like manufacturer above. The default is unknown.


Like manufacturer above. The default is unknown.


Time to wait before switching on the UPS (minutes). Defaults to 1 minute.


Time to wait before shutting down the UPS (seconds). Defaults to 30 seconds.

Instant Commands

This driver supports some instant commands (see upscmd(8)):


Start UPS self test


Cancel UPS self test


Start simulated power failure


Cancel simulated power failure


Enable the UPS beeper


Temporarily mute the UPS beeper


Toggle the UPS beeper


Turn off the load and wait for the power to return. Uses the timer defined by offdelay.


Turn off the load and return. Uses the timers defined by offdelay and ondelay.

Known Problems

If you run the shutdown.return command with mains present, the output may stay on or switch off and not back on again. The shutdown.reboot command will unconditionally switch on the load again (with or without mains present).

If the driver is called with the -k option (or through upsdrvctl shutdown) it tries to detect which command should be used in an attempt to stay off until mains is present again or to cycle the output if the power returned in the mean time. This isn’t bullet-proof, and you should be prepared that the power will either not be shutdown, or that it doesn’t return when the power comes back.


Arjen de Korte <adkorte-guest at>

See Also

The core driver


Internet resources

The NUT (Network UPS Tools) home page:

Referenced By

nutupsdrv(8), upsd(8).

10/31/2023 Network UPS Tools 2.8.1 NUT Manual