An Uninterruptable Power Supply (UPS) serial cable is used to comminicate between a Computer and UPS. This allows information to be shared between a compute and UPS for configuration and status updates.
APC Smart-UPS Cable (Part No. 940-0024)
| DB9 (Female) | DB9 (Male) | Name | Description |
|---|---|---|---|
| 1 | N/C | N/C | Not Connected |
| 2 | 2 | RXD | Receive Data |
| 3 | 3 | TXD | Transmit Data |
| 4 | 1 | DTR | Data Terminal Ready |
| 5 | 9 | GND | Signal Ground |
| 6 | N/C | N/C | Not Connected |
| 7 | N/C | N/C | Not Connected |
| 8 | N/C | N/C | Not Connected |
| 9 | N/C | N/C | Not Connected |
APC Smart-UPS Cable (Part No. 940-0020)
| DB9 (Female) | DB9 (Male) | Name | Description |
|---|---|---|---|
| 1 | N/C | N/C | Not Connected |
| 2 | N/C | N/C | Not Connected |
| 3 | N/C | N/C | Not Connected |
| 4 | 1 | DTR | Data Terminal Ready |
| 5 | 4 and 9 | GND | Signal Ground |
| 6 | N/C | N/C | Not Connected |
| 7 | N/C | N/C | Not Connected |
| 8 | 2 | CTS | Clear To Send |
| 9 | N/C | N/C | Not Connected |
