connector or cable wiring Part# 73-0724 (BC, Internet Office, OmniSmart UPS). Should work with PowerAlert software.
9 pin D-SUB male connector to the UPS
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|
|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)