connector or cable wiring APC Part # 940-0024C (black cable). Should work with APC PowerChute Plus, PowerChute V/S, PowerChute Pro software
9 pin D-SUB male connector to the UPS
9 pin D-SUB female connector to the PC
| UPS Signal Name | DB-9 Male (UPS end) | DB-9 Female (PC end) | PC Signal Name | |—————|———–|————-|———————-| | TX / AC Fail | 2 | 2 | Rx, Received Data | | RX / Shutdown | 1 | 3 | Tx, Transmitted Data | | Common | 9 | 5 | GND |
- At the PC end: pins 1,4 (DCD, DTR) shorted; pins 7,8 (RTS, CTS) shorted.