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Tripp-lite OmniPro 675 UPS

pinout

9 pin D-SUB female
9 pin D-SUB female connector  at the UPS
Pin Description
1Common/Negative
2External inverter shutdown, positive side
3line fail, normaly open contact
4return/external inverter shutdown negative side
5line fail, normaly closed contact
6low battery, positive side (2 minute warning)

Source:www.pinouts.ru

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