| Device 1 Pin Number | Device 1 Pin Name | Direction | Device 2 Pin Number | Device 2 Pin Name | Description | 
|---|---|---|---|---|---|
| 1 | RX / Shutdown | UPS Signal Name | 3 | SOUT | Serial A connector | 
| 2 | TX / AC Fail | UPS Signal Name | 6 | SIN | Serial A connector | 
| 3 | |||||
| 4 | |||||
| 5 | |||||
| 6 | |||||
| 7 | |||||
| 8 | |||||
| 9 | Common | UPS Signal Name | 4 | GROUND | Serial A connector | 





 правильная
правильная с ошибками
с ошибками