[Nut-upsdev] Tripp-Lite SMART1500LCDT
marco at sonic.net
Fri Aug 5 22:03:43 UTC 2016
On 08/05/2016 01:36 PM, Stuart D. Gathman wrote:
> On Fri, 5 Aug 2016, Marco Walther wrote:
>> On 08/03/2016 05:25 AM, Stuart Gathman wrote:
>>> I've made some progress getting this Tripplite to work:
>>> Basically, plug it into a USB hub that actually implements USB2.0,
>>> power cycle the port when it hangs. It does seem to be a hardware
>>> problem with the USB controller.
>> Finally an idea;-) I had the same problem for a couple of years but
>> since I use a [1st gen] appleTV as the server, I thought it might be
>> it's USB port.
>> I bought a `plugable USB2-HUB-AG7' and experimented a bit. So far, I
>> did not get it to turn the power to devices completely off:-( But the
>> unbind/bind seems affect the devices somehow. I tried it with a
>> little Sparkfun RedBoard (Arduino clone) and when I [re]bind, the
>> RX/TX LEDs flash shortly, so it seems to reinitialize it's USB-Serial
>> chip. Maybe that's enough?
>> The same TX/RX LED flashing happens with the hub-ctrl power off->on;-)
>> OK, the USB hub is now installed between the aTV & USP ;-) Let's see
>> what happens next.
> I also bought a USB2-HUB-AG7, but the new black version (of the *same*
> model# - arrrrgggghhhh) no longer implements PPPS. Only the old silver
> version does. What is the point of a model# if you can't count on the
Mine even says v1 on the type sticker:-( but it's black as well. So I'll
see how things behave once I loose the UPS connection and do a `hub-ctrl
power off->on'. I'm not really interested in the power off, just in the
If that does not work, I'll probably try a Arduino-based power-switch
cable. Since it now looks like it's really the UPS, I can actually think
about different ways.
More information about the Nut-upsdev