NUTDRV_ATCL_USB(8)                NUT Manual                NUTDRV_ATCL_USB(8)



NAME
       nutdrv_atcl_usb - Driver for 'ATCL FOR UPS' equipment

NOTE
       This man page only documents the specific features of the
       nutdrv_atcl_usb driver. For information about the core driver, see
       nutupsdrv(8).

SUPPORTED HARDWARE
       This driver is for UPS hardware which identifies itself as USB idVendor
       0001 and idProduct 0000, and iManufacturer ATCL FOR UPS. Known
       manufacturers include Kanji and Plexus. The UPS interface seems to be a
       generic USB-to-serial chip, and for hardware manufactured by Kanji and
       Plexus, the microcontroller appears to emulate a traditional
       contact-closure interface. This translates into only three states in
       ups.status: OL, OB and OB LB (similar to genericups(8)), with no other
       dynamic status values reported. Note that these USB identifiers
       (including the iManufacturer string) have also been seen on devices
       that are supported by the fuji subdriver of nutdrv_qx(8).

EXTRA ARGUMENTS
       This driver supports the following optional setting:

       vendor=name
           In case your iManufacturer (Vendor) string does not exactly match
           ATCL FOR UPS, you may provide an alternate string here. Note that a
           more likely case is that your device is handled by another driver
           for 0001:0000 devices, such as nutdrv_qx(8).

BUGS
       The UPS returns the same code for "load power is off" as for "on line
       power". This condition will not be observed if the NUT master is
       powered by the UPS, but may be an issue if the UPS is monitored by a
       remote system.

       The time between the shutdown command and removal of power seems to be
       fixed at 30 seconds. Ensure that the NUT shutdown script is invoked as
       late as possible in the shutdown procedure (in case some services take
       longer than others to clean up).

       Most contact-closure UPSes will not power down the load if the line
       power is present. This can create a race when using slave upsmon(8)
       systems. See the upsmon(8) man page for more information. The solution
       to this problem is to upgrade to a smart protocol UPS of some kind that
       allows detection and proper load cycling on command.

AUTHORS
       Charles Lepple

SEE ALSO
   The core driver:
       nutupsdrv(8)

   The generic serial driver:
       genericups(8)

   The Qx driver:
       nutdrv_qx(8) (fuji subdriver)

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



Network UPS Tools 2.7.3.          03/09/2016                NUTDRV_ATCL_USB(8)
