mge-utalk - Man Page

Driver for MGE UPS SYSTEMS UTalk protocol equipment

Synopsis

mge-utalk -h

mge-utalk -a UPS_NAME [OPTIONS]

Note

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

Supported Hardware

mge-utalk supports the following legacy units, using the MGE UTalk protocol:

This driver also support some newer models with backward UTalk compatibility, such as Pulsar Evolution and Pulsar EXtreme C​. As these models also support the SHUT protocol, prefer mge-shut(8) for serial communication, or use the USB port, if available, with the usbhid-ups(8)] driver​.

Extra Arguments

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

lowbatt=num

Set the low battery warning threshold at which shutdown is initiated by upsmon(8)​.

The factory default value is 30 (in percent), and can be settable depending on the exact model​.

offdelay=num

Set the timer before the UPS is turned off after the kill power command is sent (via the -k switch)​.

The default value is 20 (in seconds)​.

ondelay=num

Set the delay before the UPS is turned on, after the power returns​.

The default value is 1 (in minutes)​.

oldmac

Set this flag if you are running Linux on an Oldworld Macintosh box (all beige Apple Macintosh)​. This might also be needed for other OSs (like *BSD) running on PowerMac​.

Known Issues

Repetitive timeout and staleness

Older models, such as ES/ESV ones, might report repetitive "data stale" errors​. This is due to the fact that these models don’t support too much polling​. To solve this problem, add pollinterval=20 in ups​.conf, and change the value of MAXAGE to 25 in upsd​.conf, and DEADTIME to 25 in upsmon​.conf​.

Authors

See Also

The core driver

nutupsdrv(8)

Internet resources

The NUT (Network UPS Tools) home page: https://www​.networkupstools​.org/historic/v2​.8​.5/

Referenced By

nut(7), nutupsdrv(8), upsd(8).

08/25/2026 Network UPS Tools 2.8.5 NUT Manual