270 lines
8.6 KiB
Groff
270 lines
8.6 KiB
Groff
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'\" t
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.\" Title: nutdrv_siemens_sitop
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.\" Author: [see the "AUTHOR" section]
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 04/26/2022
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.\" Manual: NUT Manual
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.\" Source: Network UPS Tools 2.8.0
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.\" Language: English
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.\"
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.TH "NUTDRV_SIEMENS_SITOP" "8" "04/26/2022" "Network UPS Tools 2\&.8\&.0" "NUT Manual"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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nutdrv_siemens_sitop \- driver for the Siemens SITOP UPS500 series UPS
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.SH "NOTE"
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.sp
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This man page only documents the hardware\-specific features of the \fBnutdrv_siemens_sitop\fR driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
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.SH "SUPPORTED HARDWARE"
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.sp
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\fBnutdrv_siemens_sitop\fR supports Siemens UPS models from the SITOP UPS500 series\&. Some models have a serial port, others have a USB port\&. The models with USB port actually contain a serial\-over\-USB chip, so as far as this driver is concerned, all models are serial models\&. This driver should work with all models in the SITOP UPS500 series, as long as your kernel has support for the serial port device (see section \fBUSB driver\fR below)\&.
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.if n \{\
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.sp
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.\}
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.RS 4
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.ps +1
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\fBNote\fR
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.ps -1
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.br
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.sp
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This driver has only been tested with the SITOP UPS500S\-2\&.5 with USB port (Siemens product number 6EP1933\-2EC41)\&.
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.sp .5v
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.RE
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.SH "DEVICE SETTINGS"
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.sp
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The UPS is configured via DIP\-switches\&. For correct functioning in combination with NUT, set the DIP\-switches to the following:
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.PP
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\fBswitch 1\-4\fR
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.RS 4
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Choose whatever suits your situation\&. Any combination will work with NUT\&.
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.RE
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.PP
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\fBswitch 5\fR (⇒ / t)
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.RS 4
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Set to OFF (t)\&. This ensures that the UPS will not cut power unless NUT tells it to do so (or unless the batteries are exhausted)\&.
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.RE
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.PP
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\fBswitch 6\-10\fR (delay)
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.RS 4
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Set to OFF (minimum delay)\&. Setting a higher delay will actually also work, but any command from NUT will be delayed as well before being executed by the UPS\&. With the minimum setting, it will already take 5 seconds before a command from NUT is executed\&.
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.RE
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.PP
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\fBswitch 11\fR (INTERR\&.)
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.RS 4
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Set to ON (interrupt the output after the timer expires)\&. This ensures that the UPS briefly interrupts the output power in response to the shutdown\&.return command\&. See the section
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\fBInstant Commands\fR
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below\&.
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.RE
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.PP
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\fBswitch 12\fR (ON/OFF)
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.RS 4
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set to ON (enable the UPS functionality)\&. Without this, the UPS will never supply power from its batteries\&.
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.RE
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.SH "USB DRIVER"
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.sp
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The USB\-versions of the UPS contain an FTDI USB\-to\-serial converter chip\&. It is programmed with a non\-standard product ID (for example \fI0403:e0e3\fR), but can still be used with the normal ftdi_sio driver\&.
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.if n \{\
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.sp
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.\}
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.RS 4
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.ps +1
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\fBNote\fR
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.ps -1
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.br
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.sp
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The following hints may be specific to GNU/Linux\&.
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.sp .5v
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.RE
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.sp
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Use \fBlsusb\fR to figure out which product ID is used in your model, and replace all occurrences of \fIe0e3\fR in the following examples with the actual Product ID\&.
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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modprobe ftdi_sio
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echo 0403 e0e3 > /sys/bus/usb\-serial/drivers/ftdi_sio/new_id
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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If your system uses \fBudev\fR, this can be automated via a udev rule:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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ACTION=="add", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="e0e3", \e
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RUN+="/sbin/modprobe ftdi_sio", \e
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RUN+="/bin/sh \-c \*(Aqecho 0403 e0e3 > /sys/bus/usb\-serial/drivers/ftdi_sio/new_id\*(Aq"
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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You can use the following udev rule to obtain a predictable device name, for example \fI/dev/ttyUPS\fR:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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SUBSYSTEM=="tty" ATTRS{idVendor}=="0403", ATTRS{idProduct}=="e0e3" SYMLINK+="ttyUPS"
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.fi
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.if n \{\
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.RE
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.\}
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.SH "POLLING"
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.sp
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The UPS does not have a special \fIget status\fR command\&. Instead, it continuously sends out status update messages (tens of messages per second)\&. Every \fBpollinterval\fR, these messages are read from the serial port buffer\&. In order to react quickly on status changes from the UPS, and to prevent the serial buffer from overflowing, \fBpollinterval\fR should be set to a relatively low value\&. The recommended value is 1 (second)\&.
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.SH "EXTRA ARGUMENTS"
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.sp
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This driver supports the following optional settings:
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.PP
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\fBmax_polls_without_data\fR=\fInum\fR
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.RS 4
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The serial port is polled periodically for new data (see
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\fBPolling\fR)\&. If there is no valid new data after
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\fInum\fR
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polls, it is assumed that communication with the UPS is lost\&. The default value is 2\&. Lower values may cause spurious
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\fIData stale\fR
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messages, especially at startup\&.
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.RE
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.SH "INSTANT COMMANDS"
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.PP
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\fBshutdown\&.return\fR
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.RS 4
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The behavior of this command depends on the line state:
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBon line\fR: after 5 seconds (or longer, if DIP switches 6\-10 are not OFF), the UPS will shut off its output\&. After another 5 seconds, the output is activated again\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBon battery\fR: after 5 seconds (or longer, if DIP switches 6\-10 are not OFF), the UPS will shut off its output\&. The output will stay off, until the line voltage has returned\&.
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.RE
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.RE
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.PP
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\fBshutdown\&.stayoff\fR
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.RS 4
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The behavior of this command depends on the line state:
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBon line\fR: after 5 seconds (or longer, if DIP switches 6\-10 are not OFF), the UPS will shut off its output\&. The output stays off, until the line voltage has been removed for at least 1 second, and has been re\-applied\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fBon battery\fR: this command behaves the same as
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\fBshutdown\&.return\fR\&.
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.RE
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.RE
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.SH "INSTALLATION"
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.sp
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Make sure that your operating system has created a serial device for the UPS\&. See the section \fBUSB driver\fR for more information\&.
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.sp
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Next, make sure that NUT has access rights to this device file\&. For example, by creating a udev rule that grants permission to the NUT user, or by adding the NUT user to a user group that can access serial devices (e\&.g\&. the \fBdialout\fR group on Debian\-based systems)\&.
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.SH "DIAGNOSTICS"
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.sp
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You can verify the correct functioning of the hardware, by monitoring the serial port with a terminal program, for example picocom:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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picocom \-b 9600 \-d 8 \-p n /dev/ttyUPS
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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NUT must not be running when you do this\&. You should now see a continuous stream of 5\-character texts coming in, for example:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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BUFRD
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BA>85
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DC_OK
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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To exit picocom, use Ctrl\-A Ctrl\-X\&.
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.SH "KNOWN ISSUES AND BUGS"
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.PP
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\fBUntested models\fR
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.RS 4
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As mentioned under
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\fBSupported hardware\fR, this driver has not been tested with all models in the SITOP UPS500 series\&.
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.RE
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.PP
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\fBData stale messages\fR
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.RS 4
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The firmware in these UPSes is quite buggy\&. After sending data to the UPS, it sometimes stops sending status updates\&. This driver tries to prevent this (e\&.g\&. by sending commands twice, and by sending additional LF characters after each command)\&. Once the UPS is in this state, communication can only be restored by rebooting the UPS, or by unplugging and reconnecting the USB cable\&. During normal operation, no commands are sent to the UPS at all (only at shutdown), so this issue is expected to have little impact on usability\&. It is not sure if the serial models are affected by this issue as well\&.
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.RE
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.SH "AUTHOR"
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.sp
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Matthijs H\&. ten Berge
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.SH "SEE ALSO"
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.SS "The core driver:"
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.sp
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\fBnutupsdrv\fR(8)
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.SS "Internet resources:"
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.sp
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The NUT (Network UPS Tools) home page: http://www\&.networkupstools\&.org/
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