Tripp-lite OmniPro-450 (675) WinNT

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connector or cable wiring Should work with Windows NT UPS Service

9 pin D-SUB male connector layout 9 pin D-SUB male connector to the UPS

9 pin D-SUB female connector diagram 9 pin D-SUB female connector to the computer

UPS Signal Name DB-9 Male (UPS end) DB-9 Female (PC end) PC Signal Name
Shutdown 2 4 DTR
PWR Fail 5 8 CTS
Common 1,4 5 GND


  • Pin 7 at the PC end (RTS) connected by R1 2k0 to pin 8 (CTS) and connected by R2 2k0 to pin 1(DCD)
  • Power_Failure - Negative, Low_Battery - Negative, UPS_Shutdown - Positive.


Category:Miscellaneous Cables


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