| Pin Number |
Pin Name |
Description |
|---|---|---|
| 1 | NA |
not connected |
| 2 | RXD |
Received Data |
| 3 | TXD |
Transmitted Data |
| 4 |
DTR* |
Data Terminal Ready |
| 5 | GND | Ground |
| 6 | CTS | Clear to Send |
| 7 | RTS | Request to Send |
| 8 |
+5V |
*DTR is used as a power supply for some input devices and cannot be used as an active handshake signal.


