9 Pin Sub-D, Male
| Pin | Description |
|---|---|
| 1 | DCD: Data Carrier Detect |
| 2 | RXD: Receive Data |
| 3 | TXD: Transmit Data |
| 4 | DTR: Data Terminal Ready |
| 5 | GND |
| 6 | DSR: Data Set Ready |
| 7 | RTS: Request To Send |
| 8 | CTS: Clear To Send |
| 9 | RI: Ring Indicator |
25 Pin Sub-D, Male
| Pin | Description |
|---|---|
| 1 | Protective GND |
| 2 | TXD: Transmit Data |
| 3 | RXD: Receive Data |
| 4 | RTS: Request To Send |
| 5 | CTS: Clear To Send |
| 6 | DSR: Data Set Ready |
| 7 | Signal GND |
| 8 | DCD: Data Carrier Detect |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | DTR: Data Terminal Ready |
| 21 | |
| 22 | RI: Ring Indicator |
| 23 | |
| 24 | |
| 25 |
EIA-561, RJ-45, Male
| Pin | Description |
|---|---|
| 1 | RI: Ring Indicator |
| 2 | CD: Carrier Detect |
| 3 | DTR: Data Terminal Ready |
| 4 | Signal GND |
| 5 | RXD: Receive Data |
| 6 | TXD: Transmit Data |
| 7 | CTS: Clear To Send |
| 8 | RTS: Ready To Send |