1NUTDRV_ATCL_USB(8)                NUT Manual                NUTDRV_ATCL_USB(8)
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NAME

6       nutdrv_atcl_usb - Driver for 'ATCL FOR UPS' equipment
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NOTE

9       This man page only documents the specific features of the
10       nutdrv_atcl_usb driver. For information about the core driver, see
11       nutupsdrv(8).
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SUPPORTED HARDWARE

14       This driver is for UPS hardware which identifies itself as USB idVendor
15       0001 and idProduct 0000, and iManufacturer ATCL FOR UPS. Known
16       manufacturers include Kanji and Plexus. The UPS interface seems to be a
17       generic USB-to-serial chip, and for hardware manufactured by Kanji and
18       Plexus, the microcontroller appears to emulate a traditional
19       contact-closure interface. This translates into only three states in
20       ups.status: OL, OB and OB LB (similar to genericups(8)), with no other
21       dynamic status values reported. Note that these USB identifiers
22       (including the iManufacturer string) have also been seen on devices
23       that are supported by the fuji subdriver of nutdrv_qx(8).
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EXTRA ARGUMENTS

26       This driver supports the following optional setting:
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28       vendor=name
29           In case your iManufacturer (Vendor) string does not exactly match
30           ATCL FOR UPS, you may provide an alternate string here. Note that a
31           more likely case is that your device is handled by another driver
32           for 0001:0000 devices, such as nutdrv_qx(8).
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BUGS

35       The UPS returns the same code for "load power is off" as for "on line
36       power". This condition will not be observed if the NUT master is
37       powered by the UPS, but may be an issue if the UPS is monitored by a
38       remote system.
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40       The time between the shutdown command and removal of power seems to be
41       fixed at 30 seconds. Ensure that the NUT shutdown script is invoked as
42       late as possible in the shutdown procedure (in case some services take
43       longer than others to clean up).
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45       Most contact-closure UPSes will not power down the load if the line
46       power is present. This can create a race when using slave upsmon(8)
47       systems. See the upsmon(8) man page for more information. The solution
48       to this problem is to upgrade to a smart protocol UPS of some kind that
49       allows detection and proper load cycling on command.
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AUTHORS

52       Charles Lepple
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SEE ALSO

55   The core driver:
56       nutupsdrv(8)
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58   The generic serial driver:
59       genericups(8)
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61   The Qx driver:
62       nutdrv_qx(8) (fuji subdriver)
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64   Internet resources:
65       The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
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69Network UPS Tools 2.7.3.          03/09/2016                NUTDRV_ATCL_USB(8)
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