[Nut-upsuser] Tripp Lite is up to no good

Kenneth Tindle ktindle at uky.edu
Wed Feb 8 17:18:11 UTC 2006

Well, I have good news and bad news.

I have a Tripp Lite SmartPro UPS attached to a Linux server running Ubuntu
5.10, and I'm running the just-released nut 2.0.3.

I had error -71 from the UPS, which Charles Lepple correctly called out as
a likely cable problem (thank you, Charles.)  The cable provided with the
UPS by Tripp Lite was just plain bad.  Not too long, mind you- defective.
I won't bore you with the steps I used to prove it- but trust me, I proved
it, positively.

So the uhci_hcd module now loads peacefully.  lsusb spots the ups.  The
vendor id is 09ae, product id 0001- correct.  And starting tripplite_usb
as root, port auto, says:



then there are a splash of "unknown" messages, of which the killer is:

Unknown protocol (3004) attached to Tripp Lite SMART1050SLT

Uh-oh.  3004 is new.  tripplite_usb only speaks 3003.

Yes, Tripp Lite has a shiny new undocumented protocol, folks.  It is
probably based on 3003- but who knows?

One step forward, two steps back.

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