Tripp-lite OmniPro-450 (675) PowerAlert

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connector or cable wiring Part# 73-0724 (BC, Internet Office, OmniSmart UPS). Should work with PowerAlert software.

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
Ground 1 3
AC Fail 5 8 CTS
Inverter shutoff- 4 5 GND
Inverter shutoff+ 2 7 this wire includes one 1N4148 or 1N4149 diode


  • Pin 4 at the PC end (DTR) connected by R1 10kOhm to pin 8 (CTS) and by R2 10kOhm to pin 1(DCD)


Category:Miscellaneous Cables


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