[Nut-upsuser] Multiple Tripplite OMNI900LCD

Arjen de Korte nut+users at de-korte.org
Fri Aug 31 14:51:59 UTC 2007

> We have multiple TrippLite Omni900LCD UPS.  There are a couple pieces
> of equipment connected to each UPS.  I would like to connect the UPSs to
> one computer through USB which would shutdown the appropriate equipment
> based on events monitored by upsmon using upssched.  I've configured NUT
> using usbhid-ups driver and compiled/installed NUT.  I've done some
> testing and it seems to work.  Unfortunately all the USB ports are on the
> same bus for the computers that I could use for this and the TrippLites
> seem to use the same serial number.  Any way to uniquely identify the
> UPSs to NUT? Or maybe to set a value in the UPS that could be used to
> identify the UPS?

Could you run the driver in debug mode (start it up from the commandline
with the -DD option added) like

usbhid-ups -a <upsname> -DD

with each time just one UPS attached? This command will dump all the
variables that the UPS has and we *might* be able to tell them apart. The
first few seconds of output should be enough.

Best regards, Arjen
Eindhoven - The Netherlands
Key fingerprint - 66 4E 03 2C 9D B5 CB 9B  7A FE 7E C1 EE 88 BC 57

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