connector or cable wiring Used for connecting Megatech inteligent UPS (type I) or smart UPS (type II) to PC
9 pin D-SUB male connector
9 pin D-SUB male
connector
| PC Pin name | PC Pin | Direction | UPS Pin | UPS Pin name | Description |
|---|---|---|---|---|---|
| NC | 1 | - | 1 | NC | |
| AC Power Failuce | 2 | IN | 2 | AC Power Failuce | Active negative level (negative impulse indicates a power failure) |
| NC | 3 | - | 3 | NC | |
| Common Ground of Pin 2, 5, 6 | 4 | 4 | Common Ground of Pin 2, 5, 6 | ||
| UPS Battery Low | 5 | IN | 5 | UPS Battery Low | Active negative level (negative impulse indicates a batery low power level) |
| Turn Off UPS | 6 | IN | 6 | Turn Off UPS | Active positive level (positive impulse sent by PC shuts down the UPS) |
| NC / GND for pin 6 | 7 | - | 7 | NC / GND for pin 6 | NC in Type I cable. GND for pin 6 in Type II cable. |
| NC | 8 | - | 8 | NC | |
| NC | 9 | - | 9 | NC |