NOTE

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

SUPPORTED HARDWARE

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

           Pulsar ESV+,
           Pulsar ES+,
           Pulsar EL,
           Pulsar EX,
           Pulsar EXtreme,
           Comet EXtreme,
           Comet (Utalk Serial Card, ref 66060),
           Galaxy (Utalk Serial Card, ref 66060).

       This driver also support some newer models with backward UTalk compati-
       bility,  such as Pulsar Evolution and Pulsar EXtreme C. As these models
       also support the SHUT protocol, prefer mge-shut for  serial  communica-
       tion, or use the USB port, if available, with the usbhid-ups driver.

EXTRA ARGUMENTS

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


       lowbatt=value
              Low battery level below which LB is raised, in % (default 30%)


       ondelay=value
              Set delay before startup, in minutes (default 1 minute)


       offdelay=value
              Delay before shutdown, in seconds (default 120 seconds)


       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.

IMPLEMENTATION DETAILS

       Not all MGE UPS models provide all possible information,  settings  and
       commands.  mge-utalk checks on startup which variables and commands are
       available from the UPS, and re-reads these regularly. Thus, startup  is
       a bit slow, but this should not matter much.
       from/to the UPS to re synchronise the communication.

KNOWN ISSUES

   Repetitive stale status - Loss of communication
       Older models, such as ES/ESV ones, might report repetitive "data stale"
       errors.  This  is due to the fact that these models doesn'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.

TODO LIST

       Sort out OFF/OL issues
              OFF is set according to Ls.2.7, but maybe this interpretation is
              in conflict with the NUT interpretation of the OFF flag?


       Add  PowerShare  /  PowerSave  support (selectable plug number for com-
       mands)
              ON/OFF/REBOOT  commands can act either on outlet 1, 2 or main (1
              + 2). This features depends on the UPS model.  This  would  also
              allow to support UM-Switch (smart outlet).


       Enhance the model name exposure
              A  table,  named  Si1_models_names,  has  been created to format
              finelly the UPSs model names, but it is not yet being used.

AUTHORS

       Arnaud Quette, Hans Ekkehard Plesser,  Martin  Loyer,  Patrick  Agrain,
       Nicholas Reilly, Dave Abbott, Marek Kralewski

SEE ALSO

   The core driver:
       nutupsdrv(8)


   Internet resources:
       The NUT (Network UPS Tools) home page: http://www.networkupstools.org/



                                Mon Jan 16 2006                   mge-utalk(8)