pupsd(8) — Reliant UNIX 5.44c4

pupsd(8)                        (RM400 only)                       pupsd(8)

NAME
     pupsd - control UPS using the protocol interface

SYNOPSIS
     /usr/sbin/pupsd

DESCRIPTION
     The pupsd daemon monitors the UPS (Uninterruptible Power Supply) over a
     V24 line using a protocol. The protocol comprises ASCII strings, which
     are sent to UPS and to which UPS can respond depending on the command.

     The only protocol currently supported is the SIEMENS UPS 9071
     (P model).

     The system needs to be connected to the UPS by means of a special
     cable in order for communication to take place between the pupsd dae-
     mon and UPS. A /dev/term/UPS device file must also be installed, which
     handles the entire communication process.

     The device file is created with the termadd(1M) command.

     Example:

          termadd -T serial -b motherboard0,6 -n UPS

     The pupsd daemon is controlled by means of the /var/adm/ubft/upstab
     file [see upstab(4)]. It reacts, in particular, to the following
     events:

     error ::= {upsactive | upsactive+batlow}

     These events have the following meaning:

     upsactive
          Mains power supply has failed, batteries are supplying power.

     upsactive+batlow
          The battery power is also low now.

     Other important entries for a 9071 type UPS include:

     upspolltime:nn
          This parameter determines the time period (in seconds) to be
          waited between two polls to the UPS. The default is for the sys-
          tem to poll the UPS every 16 seconds for its status; this corre-
          sponds to upspolltime:16.

     upsdowndelay:nn
          Before the system halts, it issues a final command to the UPS
          informing it to disable power supply from the batteries (e. g. to
          maintain reserves in case another mains failure should occur).
          The UPS delays the actual disable for a period of nn minutes.



Page 1                       Reliant UNIX 5.44                Printed 11/98

pupsd(8)                        (RM400 only)                       pupsd(8)

NOTES
     In order to influence the behavior of the system during power down,
     you have to use the pwr command in the shell script [see "script" in
     upstab(4)].

SEE ALSO
     termadd(1M), ups(1M), upstab(4), pwr(8).















































Page 2                       Reliant UNIX 5.44                Printed 11/98

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