| RS232C | |||||
|---|---|---|---|---|---|
| Pin No. | Signal Name | I/O | Description | ||
| 1 | DCD | I | Data Carrier Detect | ||
| 6 | DSR | I | Data Set Ready | ||
| 2 | RXD | I | Received Data | ||
| 7 | RTS | O | Ready To Send | ||
| 3 | TXD | O | Transmitted Data | ||
| 8 | CTS | I | Clear To Send | ||
| 4 | DTR | O | Data Terminal Ready | ||
| 9 | RI | I | Ring Indicator | ||
| 5 | SIG ground | - | Signal Ground | ||
| RS232C | |||||
|---|---|---|---|---|---|
| Pin No. | Signal Name | I/O | Description | ||
| 1 | Chassis ground | - | Protective Ground | ||
| 14 | NC | - | |||
| 2 | TXD | O | Transmitted Data | ||
| 15 | NC | - | |||
| 3 | RXD | I | Received Data | ||
| 16 | NC | - | |||
| 4 | RTS | O | Ready To Send | ||
| 17 | NC | - | |||
| 5 | CTS | I | Clear To Send | ||
| 18 | NC | - | |||
| 6 | DSR | I | Data Set Ready | ||
| 19 | NC | - | |||
| 7 | SIG ground | - | Signal Ground | ||
| 20 | DTR | O | Data Terminal Ready | ||
| 8 | DCD | I | Data Carrier Detect | ||
| 21 | NC | - | |||
| 9 | NC | - | |||
| 22 | RI | I | Ring Indicator | ||
| 10 | NC | - | |||
| 23 | DSRD | I | Data Signal Rate Detector | ||
| 11 | NC | - | |||
| 24 | NC | - | |||
| 12 | NC | - | |||
| 25 | NC | - | |||
| 13 | NC | - | |||