Nut upsuser - Oct 2013 - UPS Product additions to NUT HCL list for compatible Tripp Lite UPS systems

Hello,

My name is Eric Cobb and I am a Product Specialist with Tripp Lite. We have
tested your latest NUT distributions against our HID  USB compatible UPS systems
and would like to know what is needed and/or who is needed to contact in order
to updated the listing of compatible Tripp Lite UPS systems in your HCL list?

Best Regards,

Eric K. Cobb
Product Management Specialist

[Tripp Lite]

1111 W. 35th Street   |   Chicago IL 60609 USA
773.869.1203   |   Fax 773.869.1935
website<http://www.tripplite.com/EN/index.cfm>  | 
email<mailto:eric_cobb at tripplite.com>  |

[Reach Me on Skype]<eric.cobb21>  [Follow us on Twitter]
<http://twitter.com/tripplite>   [Find us on Facebook]
<http://www.facebook.com/TrippLite>   [See us on YouTube]
<http://www.youtube.com/profile?user=tripplite>   [Find us on Linkedin]
<http://www.linkedin.com/company/tripp-lite>



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________________________________
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information. If you receive this message in error, please delete it and notify
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On Oct 15, 2013, at 3:40 PM, Eric Cobb wrote:
> My name is Eric Cobb and I am a Product Specialist with Tripp Lite. We have
tested your latest NUT distributions against our HID  USB compatible UPS systems
and would like to know what is needed and/or who is needed to contact in order
to updated the listing of compatible Tripp Lite UPS systems in your HCL list?
Hi Eric,

From end users of NUT, we usually request the information mentioned under
"Report new devices, omissions or errors" at
http://www.networkupstools.org/stable-hcl.html#footnotes

However, I don't want to be pedantic about getting the exact output of
'upsc' from the entire Tripp Lite product line - especially if several
models share the same USB controller. Getting the 'upsc' output from a
representative model should be sufficient.

What would be helpful is to understand which models are similar, and whether
there are any attributes we can use to differentiate between various generations
of the hardware (for instance, at some point the SMART2200RMXL2U changed from
the proprietary serial-over-HID to standard PDC HID).

Also, we occasionally run across cosmetic errors in the output data:
http://thread.gmane.org/gmane.comp.monitoring.nut.devel/6482

While this shouldn't affect the shutdown sequence, we do try to correct the
returned measurements if we can identify a good algorithm. If all of the
voltages are in microvolts (including the config voltages), we can apply a
multiplier across the board. But if only some of the exponents are wrong, it is
harder to write a general rule that won't break when the HID descriptor in
the firmware is fixed. If there is a firmware revision that we can compare
against, that can help isolate the bug fixes.

The last piece (not visible on the HCL, but included in the data files for
hotplug/udev) is the list of USB vendor/product IDs. If a new Tripp Lite product
ID were to be encountered by NUT, the driver would not automatically attach to
it unless the "productid" option is specified. It is a simple way to
tell users that we did not know whether that device would work when that version
of NUT was released, but that they can give it a shot (potentially getting
incorrectly scaled voltages). We are open to suggestions on how to improve that
heuristic, especially if Tripp Lite has allocated separate ranges of product IDs
for UPS and non-UPS hardware. Here's the code in question:

https://github.com/networkupstools/nut/blob/master/drivers/tripplite-hid.c#L57

In that file, the product IDs are matched individually, and there is a
tripplite_claim() function at the bottom of the file which tries to offer advice
for other IDs.

Regards,

-- 
Charles Lepple
clepple at gmail

Eric Cobb wrote, On 10/15/2013 12:40 PM:
>
> Hello,
>
> My name is Eric Cobb and I am a Product Specialist with Tripp Lite. We 
> have tested your latest NUT distributions against our HID  USB 
> compatible UPS systems and would like to know what is needed and/or 
> who is needed to contact in order to updated the listing of compatible 
> Tripp Lite UPS systems in your HCL list?
>
Interesting... it's nice to know that Tripp-lite has some interest in NUT.

I have a SMART1050SLT that has been giving me troubles if I try to use 
it with anything but the Windows driver. PowerAlert keeps losing touch 
the UPS. Also, I never liked that it needs Java.

This UPS also doesn't seem to like NUT, it causes the usbhid-ups driver 
to crash among other issues. I haven't had much time to poke at it 
further. Been wondering if the UPS itself is just bugged.

Regards.

On 10/15/2013 at 9:32 PM Charles Lepple wrote:

|On Oct 15, 2013, at 3:40 PM, Eric Cobb wrote:
|
|> My name is Eric Cobb and I am a Product Specialist with Tripp
Lite. We
|have tested your latest NUT distributions against our HID  USB
compatible
|UPS systems and would like to know what is needed and/or who is
needed to
|contact in order to updated the listing of compatible Tripp Lite
UPS
|systems in your HCL list?
|
|Hi Eric,
|
|>From end users of NUT, we usually request the information
mentioned under
|"Report new devices, omissions or errors" at
|http://www.networkupstools.org/stable-hcl.html#footnotes 
|
|However, I don't want to be pedantic about getting the exact output
of
|'upsc' from the entire Tripp Lite product line - especially if
several
|models share the same USB controller. Getting the 'upsc' output
from a
|representative model should be sufficient.
|
|What would be helpful is to understand which models are similar,
and
|whether there are any attributes we can use to differentiate
between
|various generations of the hardware (for instance, at some point
the
|SMART2200RMXL2U changed from the proprietary serial-over-HID to
standard
|PDC HID).
| [snip]
============

If I may make a request here for one more piece of information
requested from vendors:

Whether or not the UPS has shutdown delay that can be initiated by
NUT, i.e., I want to be able to tell the UPS to shutdown in 60
seconds so that I can shutdown the computer running NUT before the
UPS kills power.  It would be great if the number of seconds in the
shutdown delay could be configured within NUT.

Hello Mr. Leppe,

See the attached excel file that covers the current Tripp Lite HID compatible
UPS systems. There is also an attached Word document covering the UPSC / UPSCMD
/ UPSRW information from the specific UPS systems. Let me know if this is
adequate to get our additional HID compatible products added to the NUT HCL
listing.


Tripp Lite
Eric K. Cobb
Product Management Specialist



1111 W. 35th Street   |   Chicago IL 60609 USA
773.869.1203   |   Fax 773.869.1935
Email: Eric_cobb at tripplite.com
Website: www.tripplite.com

This message is for the addressee?s use only. It may contain confidential
information. If you receive this message in error, please delete it and notify
the sender. Tripp Lite disclaims all warranties and liabilities, and assumes no
responsibility for viruses which may infect an email sent to you from Tripp Lite
and which damage your electronic systems or information. It is your
responsibility to maintain virus detection systems to prevent damage to your
electronic systems and information.




-----Original Message-----
From: Charles Lepple [mailto:clepple at gmail.com]
Sent: Tuesday, October 15, 2013 8:33 PM
To: Eric Cobb
Cc: nut-upsuser list
Subject: Re: [Nut-upsuser] UPS Product additions to NUT HCL list for compatible
Tripp Lite UPS systems

On Oct 15, 2013, at 3:40 PM, Eric Cobb wrote:
> My name is Eric Cobb and I am a Product Specialist with Tripp Lite. We have
tested your latest NUT distributions against our HID  USB compatible UPS systems
and would like to know what is needed and/or who is needed to contact in order
to updated the listing of compatible Tripp Lite UPS systems in your HCL list?
Hi Eric,
>From end users of NUT, we usually request the information mentioned under
"Report new devices, omissions or errors" at
http://www.networkupstools.org/stable-hcl.html#footnotes
However, I don't want to be pedantic about getting the exact output of
'upsc' from the entire Tripp Lite product line - especially if several
models share the same USB controller. Getting the 'upsc' output from a
representative model should be sufficient.

What would be helpful is to understand which models are similar, and whether
there are any attributes we can use to differentiate between various generations
of the hardware (for instance, at some point the SMART2200RMXL2U changed from
the proprietary serial-over-HID to standard PDC HID).

Also, we occasionally run across cosmetic errors in the output data:
http://thread.gmane.org/gmane.comp.monitoring.nut.devel/6482

While this shouldn't affect the shutdown sequence, we do try to correct the
returned measurements if we can identify a good algorithm. If all of the
voltages are in microvolts (including the config voltages), we can apply a
multiplier across the board. But if only some of the exponents are wrong, it is
harder to write a general rule that won't break when the HID descriptor in
the firmware is fixed. If there is a firmware revision that we can compare
against, that can help isolate the bug fixes.

The last piece (not visible on the HCL, but included in the data files for
hotplug/udev) is the list of USB vendor/product IDs. If a new Tripp Lite product
ID were to be encountered by NUT, the driver would not automatically attach to
it unless the "productid" option is specified. It is a simple way to
tell users that we did not know whether that device would work when that version
of NUT was released, but that they can give it a shot (potentially getting
incorrectly scaled voltages). We are open to suggestions on how to improve that
heuristic, especially if Tripp Lite has allocated separate ranges of product IDs
for UPS and non-UPS hardware. Here's the code in question:

https://github.com/networkupstools/nut/blob/master/drivers/tripplite-hid.c#L57

In that file, the product IDs are matched individually, and there is a
tripplite_claim() function at the bottom of the file which tries to offer advice
for other IDs.

Regards,

--
Charles Lepple
clepple at gmail




________________________________
 This message is for the addressee's use only. It may contain confidential
information. If you receive this message in error, please delete it and notify
the sender. Tripp Lite disclaims all warranties and liabilities, and assumes no
responsibility for viruses which may infect an email sent to you from Tripp Lite
and which damage your electronic systems or information. It is your
responsibility to maintain virus detection systems to prevent damage to your
electronic systems and information.
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