| Pin Number |
Pin Name |
Description (may be empty) |
| 1 | CD | Carrier Detect |
| 2 | DSR | Data Set Ready |
| 3 | RX Data | Receive Data |
| 4 | RTS | Request To Send |
| 5 | TX Data | Transmit Data |
| 6 | CTS | Clear To Send |
| 7 | DTR | Data Terminal Ready |
| 8 | RI | Ring Indicator |
| 9 | GND | Ground |

| Pin Number |
Pin Name |
Description (may be empty) |
| 1 | CD | Carrier Detect |
| 2 | DSR | Data Set Ready |
| 3 | RX Data | Receive Data |
| 4 | RTS | Request To Send |
| 5 | TX Data | Transmit Data |
| 6 | CTS | Clear To Send |
| 7 | DTR | Data Terminal Ready |
| 8 | RI | Ring Indicator |
| 9 | GND | Ground |