nut-debian/docs/man/asem.8

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'\" t
.\" Title: asem
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.\" Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\" 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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.TH "ASEM" "8" "04/26/2022" "Network UPS Tools 2\&.8\&.0" "NUT Manual"
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.SH "NAME"
asem \- driver for UPS in ASEM PB1300
.SH "NOTE"
.sp
This man page only documents the hardware\-specific features of the \fBasem\fR driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
.SH "SUPPORTED HARDWARE"
.sp
The \fBasem\fR driver supports the UPS in ASEM PB1300 embedded PCs\&. Likely other I2C devices from the same manufacturer will work too, since this is a "custom" charger\&.
.sp
Seems that there are two versions of the charger\&. Older one is based on Max1667, newer one is a custom solution\&. Both are on I2C address 0x09\&. To be compatible with both versions, the driver just reads bit 15 of address 0x13 which yields online/on battery status\&. Battery monitor is a BQ2060 at address 0x0B\&.
.SH "EXTRA ARGUMENTS"
.sp
The required parameter for this driver is the I2C bus name:
.PP
\fBport\fR=\fIdev\-node\fR
.RS 4
On the Asem PB1300, this should be
/dev/i2c\-7
for the i801 SMBUS adapter\&.
.RE
.sp
This driver also supports the following optional settings:
.PP
\fBlb\fR=\fInum\fR
.RS 4
Set the low battery threshold to
\fInum\fR
volts\&.
.RE
.PP
\fBhb\fR=\fInum\fR
.RS 4
Set the high battery threshold to
\fInum\fR
volts\&.
.RE
.SH "INSTALLATION"
.sp
This driver is specific to the Linux I2C API, and requires the lm_sensors libi2c\-dev or its equivalent to compile\&.
.sp
Beware that the SystemIO memory used by the I2C controller is reserved by ACPI\&. If only a native I2C driver (e\&.g\&. i2c_i801, as of 3\&.5\&.X Linux kernels) is available, then you\(cqll need to relax the ACPI resources check\&. For example, you can boot with the acpi_enforce_resources=lax option\&.
.SH "KNOWN ISSUES AND BUGS"
.sp
The driver shutdown function is not implemented, so other arrangements must be made to turn off the UPS\&.
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.SH "AUTHOR"
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.sp
Giuseppe Corbelli <giuseppe\&.corbelli@copanitalia\&.com>
.SH "SEE ALSO"
.SS "The core driver:"
.sp
\fBnutupsdrv\fR(8)
.SS "Internet resources:"
.sp
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.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
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.el \{\
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.IP \(bu 2.3
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PB1300 specifications:
http://www\&.asem\&.it/en/products/industrial\-automation/box\-pcs/performance/pb1300/
.RE
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.sp
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.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
BQ2060 datasheet:
http://www\&.ti\&.com/lit/ds/symlink/bq2060\&.pdf
.RE
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.sp
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.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The NUT (Network UPS Tools) home page:
http://www\&.networkupstools\&.org/
.RE