[Nut-upsuser] SU5000RT3UPM support?

Fri Feb 26 17:08:47 GMT 2021

I have a Tripp-Lite SU5000RT3UPM that I’d like to get working with NUT. It’s connected via serial to a RHEL 7.9 box.

Here’s what I get:

[root at micc nut]# /usr/local/ups/bin/tripplitesu -a tripplite -DD
Network UPS Tools - Tripp Lite SmartOnline driver 0.05 (2.7.4-2124-g9defa7a)
Warning: This is an experimental driver.
Some features may not function correctly.

addchar: discarding invalid character (0xe2)!
addchar: discarding invalid character (0x80)!
addchar: discarding invalid character (0x9d)!
addchar: discarding invalid character (0x0a)!
   0.000000 [D1] debug level is '2'
   3.105001 init_comm: Initial response malformed, retrying in 300ms
   6.508992 Unable to detect Tripp Lite SmartOnline UPS on port /dev/ttyS0

[root at micc nut]#

Any ideas? Has anyone gotten this working?

Daniel M. Drucker, Ph.D.
Director of IT, McLean Imaging Center

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