
주요특징


| Pin No. | Signal | Direction | Description |
| 1 | DCD | Output | Data Carrier Detect |
| 2 | TxD | Output | Transmitted Data |
| 3 | RxD | Input | Received Data |
| 4 | DSR | Input | Data Set Ready |
| 5 | GND | Common | Signal Ground |
| 6 | DTR | Output | Data Terminal Ready |
| 7 | CTS | Input | Clear to Send |
| 8 | RTS | Output | Request to Send |
| 9 | Vcc | Input | DC +5V ~ +12V |