# SU2200RTXLCD2U Power Supply (UPS) Systems

**URL:** <https://forum.digikey.com/t/su2200rtxlcd2u-power-supply-ups-systems/70929>\
**Category:** Power\
**Tags:** documentation, line-protection-distribution-backups, eaton-tripp-lite\
**Created:** [July 29, 2026, 1:19pm UTC](https://forum.digikey.com/t/su2200rtxlcd2u-power-supply-ups-systems/70929 "2026-07-29T13:19:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kitchan](https://avatars.discourse-cdn.com/v4/letter/k/278dde/32.png) [@kitchan](https://forum.digikey.com/u/kitchan)\
**Post date:** [July 29, 2026, 1:19pm UTC](https://forum.digikey.com/t/su2200rtxlcd2u-power-supply-ups-systems/70929/1 "2026-07-29T13:19:16Z")

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Tripp-lite SU2200RTXLCD2U UPS issue:

Without AC supply, in the Standby mode UPS keep restart itself after shutdown. Pls refer video for more details. We done factory default setting and disable auto restart but still unable to resolve this issue

Please advise us.

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**Author:** ![Quinn\_2289](https://avatars.discourse-cdn.com/v4/letter/q/f4b2a3/32.png) [@Quinn\_2289](https://forum.digikey.com/u/Quinn_2289)\
**Post date:** [July 29, 2026, 2:52pm UTC](https://forum.digikey.com/t/su2200rtxlcd2u-power-supply-ups-systems/70929/2 "2026-07-29T14:52:54Z")

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Hello kitchan,  
Welcome to the TechForum, below is the link from the manufacturer webpage for [SU2200RTXLCD2U](https://www.digikey.com/en/products/detail/eaton-tripp-lite/SU2200RTXLCD2U/4439296). The Service and Support has a tech hotline for help page 39 of the guide, also information if the part needs to be sent in for repair

[eaton-tripp-lite-series-smartonline-rack-tower-user-guide.pdf](https://www.eaton.com/content/dam/eaton/products/backup-power-ups-surge-it-power-distribution/backup-power-ups/tripp-lite-series-smartonline/user-guides/eaton-tripp-lite-series-smartonline-rack-tower-user-guide.pdf)