|
|
RS232 port pinouts. By Lee Davison. |
|
| Signal | Name | DE-9 Pin | DB-25 Pin |
| DCD | Data Carrier Detect | 1 | 8 |
| RXD | Receive Data | 2 | 3 |
| TXD | Transmit Data | 3 | 2 |
| DTR | Data Terminal Ready | 4 | 20 |
| GND | Signal Ground | 5 | 7 |
| DSR | Data Set Ready | 6 | 6 |
| RTS | Request To Send | 7 | 4 |
| CTS | Clear To Send | 8 | 5 |
| RI | Ring Indicator | 9 | 22 |
| Last page update: 15th December, 2005. | e-mail me
 |